​

​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549


​
FORM 6-K


REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE MONTH OF APRIL 2025


COMMISSION FILE NUMBER 001-38976

Genmab A/S
(Exact name of Registrant as specified in its charter)

Carl Jacobsens Vej 30

2500 Valby

Denmark

+45 70 20 27 28
(Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ⌧ Form 40-F ◻

This report on Form 6-K shall be deemed to be incorporated by reference in Genmab A/S’s registration statements on Form S-8 (File No. 333-232693, 333-253519, 333-262970, 333-277273 and 333-284876) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

​

​

​

​


SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

nthony

​

​

​

GENMAB A/S

​

​

​

​

BY:

/s/ Anthony Pagano

​

​

Name: Anthony Pagano

​

​

Title: Executive Vice President & Chief Financial Officer

​

DATE: APRIL 22, 2025

​


EXHIBIT INDEX

O

Exhibit

Description of Exhibit

​

​

99.1

Company Announcement Dated April 22, 2025: Transactions in Connection with Share Buy-back Program

​

​

99.1(a)

Appendix Share buyback program – Specification for April 14 – April 18, 2025

​


Exhibit 99.1

​

Graphic

​

Transactions in Connection with Share Buy-back Program

​

Company Announcement

​

COPENHAGEN, Denmark; April 22, 2025 – Genmab A/S (Nasdaq: GMAB). On March 25, 2025, Genmab announced the initiation of a share buy-back program to repurchase up to 2.2 million shares to reduce capital and to honor our commitments under the Restricted Stock Unit program. The share buy-back program is expected to be completed no later than July 10, 2025.

​

The following transactions were executed under the program from April 14 to April 18, 2025:

​

Trading Platform

No. of shares

Average price (DKK)

Total value (DKK)

Accumulated through last announcement

​

1,083,902

​

1,393,911,230.61

April 14, 2025

XCSE

52,871

1,269.11

67,099,100.80

​

BCXE

26,940

1,269.12

34,190,092.80

​

AQEU

4,700

1,268.67

5,962,749.00

​

TQEX

5,000

1,268.47

6,342,350.00

​

Total

89,511

​

113,594,292.60

April 15, 2025

XCSE

53,900

1,295.52

69,828,654.08

BCXE

28,000

1,295.71

36,279,880.00

​

AQEU

5,000

1,295.84,

6,479,200.00

​

TQEX

5,000

1,295.64

6,478,200.00

​

Total

91,900

​

119,065,934.08

April 16, 2025

XCSE

51,381

1,285.93

66,072,139.12

​

BCXE

28,319

1,285.46

36,402,802.98

​

AQEU

5,100

1,285.89

6,558,049.20

​

TQEX

5,418

1,285.64

6,965,574.22

​

Total

90,218

​

115,998,569.37

April 17, 2025

XCSE

​

​

​

​

BCXE

​

​

​

​

AQEU

​

​

​

​

TQEX

​

​

​

​

Total

​

​

​

April 18, 2025

XCSE

​

​

​

​

BCXE

​

​

​

​

AQEU

​

​

​

​

TQEX

​

​

​

​

Total

​

​

​

Total

​

271,629

​

348,658,796.05

Accumulated under the program 

1,355,531

​

1,742,570,026.66

​

​

Details of each transaction are included as an appendix to this announcement.

​

​

​

​

​

Genmab A/S

Tel: +45 7020 2728

Company Announcement no. 21

Carl Jacobsens Vej 30

Fax: +45 7020 2729

Page 1/2

2500 Valby, Denmark

www.genmab.com

CVR no. 2102 3884

​

​

LEI Code 529900MTJPDPE4MHJ122

​


Graphic

​

Transactions in Connection with Share Buy-back Program

​

Following these transactions, Genmab holds 1,808,284 shares as treasury shares, corresponding to 2.82% of the total share capital and voting rights.

​

The share buy-back program is undertaken in accordance with Regulation (EU) No. 596/2014 (‘MAR’) and the Commission Delegated Regulation (EU) 2016/1052, also referred to as the “Safe Harbour Regulation.” Further details on the terms of the share buy-back program can be found in our company announcement no. 14 dated March 25, 2025.

​

About Genmab

Genmab is an international biotechnology company with a core purpose of guiding its unstoppable team to strive toward improving the lives of patients with innovative and differentiated antibody therapeutics. For more than 25 years, its passionate, innovative and collaborative team has invented next-generation antibody technology platforms and leveraged translational, quantitative and data sciences, resulting in a proprietary pipeline including bispecific T-cell engagers, antibody-drug conjugates, next-generation immune checkpoint modulators and effector function-enhanced antibodies. By 2030, Genmab’s vision is to transform the lives of people with cancer and other serious diseases with knock-your-socks-off (KYSO) antibody medicines®. 

 

Established in 1999, Genmab is headquartered in Copenhagen, Denmark, with international presence across North America, Europe and Asia Pacific. For more information, please visit Genmab.com and follow us on LinkedIn and X.

​

Contact:
Marisol Peron, Senior Vice President, Global Communications & Corporate Affairs

T: +1 609 524 0065; E: mmp@genmab.com

​

Andrew Carlsen, Vice President, Head of Investor Relations

T: +45 3377 9558; E: acn@genmab.com

​
This Company Announcement contains forward looking statements. The words “believe,” “expect,” “anticipate,” “intend” and “plan” and similar expressions identify forward looking statements. Actual results or performance may differ materially from any future results or performance expressed or implied by such statements. The important factors that could cause our actual results or performance to differ materially include, among others, risks associated with pre-clinical and clinical development of products, uncertainties related to the outcome and conduct of clinical trials including unforeseen safety issues, uncertainties related to product manufacturing, the lack of market acceptance of our products, our inability to manage growth, the competitive environment in relation to our business area and markets, our inability to attract and retain suitably qualified personnel, the unenforceability or lack of protection of our patents and proprietary rights, our relationships with affiliated entities, changes and developments in technology which may render our products or technologies obsolete, and other factors. For a further discussion of these risks, please refer to the risk management sections in Genmab’s most recent financial reports, which are available on www.genmab.com and the risk factors included in Genmab’s most recent Annual Report on Form 20-F and other filings with the U.S. Securities and Exchange Commission (SEC), which are available at www.sec.gov. Genmab does not undertake any obligation to update or revise forward looking statements in this Company Announcement nor to confirm such statements to reflect subsequent events or circumstances after the date made or in relation to actual results, unless required by law.

​
Genmab A/S and/or its subsidiaries own the following trademarks: Genmab®; the Y-shaped Genmab logo®; Genmab in combination with the Y-shaped Genmab logo®; HuMax®; DuoBody®; HexaBody®; DuoHexaBody®, HexElect® and KYSO®.

​

​

​

​

Genmab A/S

Tel: +45 7020 2728

Company Announcement no. 21

Carl Jacobsens Vej 30

Fax: +45 7020 2729

Page 2/2

2500 Valby, Denmark

www.genmab.com

CVR no. 2102 3884

​

​

LEI Code 529900MTJPDPE4MHJ122

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

Issuer

Date

Time CET

Quantity

Price (DKK)

Venue

GENMAB A/S

14-Apr-2025

9:55:18 AM

78

1259.50

XCSE

GENMAB A/S

14-Apr-2025

9:55:30 AM

82

1259.00

CEUX

GENMAB A/S

14-Apr-2025

9:55:32 AM

86

1258.50

XCSE

GENMAB A/S

14-Apr-2025

9:56:01 AM

76

1258.00

TQEX

GENMAB A/S

14-Apr-2025

9:56:14 AM

74

1258.00

AQEU

GENMAB A/S

14-Apr-2025

9:56:31 AM

84

1257.50

XCSE

GENMAB A/S

14-Apr-2025

9:56:31 AM

77

1257.50

CEUX

GENMAB A/S

14-Apr-2025

9:56:32 AM

76

1257.00

TQEX

GENMAB A/S

14-Apr-2025

9:56:32 AM

77

1256.50

CEUX

GENMAB A/S

14-Apr-2025

9:56:32 AM

3

1256.50

CEUX

GENMAB A/S

14-Apr-2025

9:56:32 AM

87

1257.00

AQEU

GENMAB A/S

14-Apr-2025

9:56:33 AM

38

1256.00

XCSE

GENMAB A/S

14-Apr-2025

9:56:33 AM

81

1256.00

TQEX

GENMAB A/S

14-Apr-2025

9:56:33 AM

83

1256.00

AQEU

GENMAB A/S

14-Apr-2025

10:00:33 AM

22

1258.00

XCSE

GENMAB A/S

14-Apr-2025

10:00:33 AM

53

1258.00

XCSE

GENMAB A/S

14-Apr-2025

10:00:33 AM

12

1258.00

XCSE

GENMAB A/S

14-Apr-2025

10:00:33 AM

25

1258.00

CEUX

GENMAB A/S

14-Apr-2025

10:00:58 AM

18

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:02:01 AM

85

1261.00

XCSE

GENMAB A/S

14-Apr-2025

10:02:01 AM

31

1261.00

TQEX

GENMAB A/S

14-Apr-2025

10:02:01 AM

15

1261.00

CEUX

GENMAB A/S

14-Apr-2025

10:02:01 AM

32

1261.00

CEUX

GENMAB A/S

14-Apr-2025

10:04:31 AM

52

1261.00

CEUX

GENMAB A/S

14-Apr-2025

10:04:39 AM

31

1260.50

XCSE

GENMAB A/S

14-Apr-2025

10:04:39 AM

53

1260.50

XCSE

GENMAB A/S

14-Apr-2025

10:04:39 AM

25

1260.50

TQEX

GENMAB A/S

14-Apr-2025

10:04:39 AM

8

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:04:39 AM

5

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:04:39 AM

7

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:06:13 AM

60

1261.00

CEUX

GENMAB A/S

14-Apr-2025

10:06:45 AM

88

1260.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

83

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

3

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

16

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

8

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

13

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

5

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

5

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

15

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:09:28 AM

8

1259.50

XCSE

1

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

10:09:28 AM

30

1260.00

TQEX

GENMAB A/S

14-Apr-2025

10:09:28 AM

2

1259.00

TQEX

GENMAB A/S

14-Apr-2025

10:09:28 AM

5

1259.00

TQEX

GENMAB A/S

14-Apr-2025

10:09:28 AM

2

1259.00

TQEX

GENMAB A/S

14-Apr-2025

10:09:28 AM

7

1259.00

TQEX

GENMAB A/S

14-Apr-2025

10:09:28 AM

2

1259.00

TQEX

GENMAB A/S

14-Apr-2025

10:09:28 AM

6

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:09:28 AM

8

1259.00

CEUX

GENMAB A/S

14-Apr-2025

10:09:28 AM

2

1259.00

CEUX

GENMAB A/S

14-Apr-2025

10:09:28 AM

7

1259.00

CEUX

GENMAB A/S

14-Apr-2025

10:09:47 AM

39

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:09:56 AM

11

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:09:56 AM

10

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:09:56 AM

39

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:10:03 AM

39

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:10:30 AM

19

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:10:30 AM

39

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:10:58 AM

82

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:10:58 AM

50

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:10:58 AM

59

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:10:58 AM

3

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:10:58 AM

14

1259.00

CEUX

GENMAB A/S

14-Apr-2025

10:10:58 AM

29

1259.50

AQEU

GENMAB A/S

14-Apr-2025

10:11:00 AM

75

1258.50

XCSE

GENMAB A/S

14-Apr-2025

10:11:00 AM

13

1258.50

TQEX

GENMAB A/S

14-Apr-2025

10:11:00 AM

17

1258.50

TQEX

GENMAB A/S

14-Apr-2025

10:11:58 AM

9

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:11:58 AM

74

1259.50

XCSE

GENMAB A/S

14-Apr-2025

10:11:58 AM

84

1259.50

CEUX

GENMAB A/S

14-Apr-2025

10:12:17 AM

38

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:13:21 AM

21

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:13:21 AM

5

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:13:21 AM

48

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:13:21 AM

64

1260.00

XCSE

GENMAB A/S

14-Apr-2025

10:13:21 AM

27

1259.50

TQEX

GENMAB A/S

14-Apr-2025

10:13:21 AM

16

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:13:21 AM

11

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:13:21 AM

3

1260.00

CEUX

GENMAB A/S

14-Apr-2025

10:13:21 AM

24

1259.50

CEUX

GENMAB A/S

14-Apr-2025

10:13:21 AM

5

1259.50

CEUX

GENMAB A/S

14-Apr-2025

10:13:21 AM

10

1259.50

CEUX

GENMAB A/S

14-Apr-2025

10:13:21 AM

18

1259.50

CEUX

GENMAB A/S

14-Apr-2025

10:13:22 AM

76

1260.00

XCSE

2

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

10:14:37 AM

6

1263.00

XCSE

GENMAB A/S

14-Apr-2025

10:14:48 AM

47

1263.50

XCSE

GENMAB A/S

14-Apr-2025

10:14:58 AM

84

1263.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:05 AM

84

1263.00

XCSE

GENMAB A/S

14-Apr-2025

10:15:05 AM

24

1263.50

XCSE

GENMAB A/S

14-Apr-2025

10:15:05 AM

39

1263.50

XCSE

GENMAB A/S

14-Apr-2025

10:15:05 AM

36

1263.50

XCSE

GENMAB A/S

14-Apr-2025

10:15:05 AM

42

1263.00

XCSE

GENMAB A/S

14-Apr-2025

10:15:05 AM

32

1263.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:05 AM

28

1263.00

AQEU

GENMAB A/S

14-Apr-2025

10:15:22 AM

87

1263.00

XCSE

GENMAB A/S

14-Apr-2025

10:15:22 AM

6

1263.00

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

9

1263.00

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

5

1263.00

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

5

1263.00

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

2

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

1

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

25

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

3

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

7

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

8

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

9

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

5

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:22 AM

3

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:15:23 AM

20

1262.50

CEUX

GENMAB A/S

14-Apr-2025

10:19:02 AM

41

1265.50

XCSE

GENMAB A/S

14-Apr-2025

10:19:08 AM

41

1265.50

XCSE

GENMAB A/S

14-Apr-2025

10:21:37 AM

20

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:40 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:40 AM

13

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:43 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:43 AM

21

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:43 AM

14

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:56 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:56 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:58 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:58 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:21:58 AM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:22:39 AM

11

1264.50

XCSE

GENMAB A/S

14-Apr-2025

10:22:39 AM

32

1265.00

TQEX

GENMAB A/S

14-Apr-2025

10:22:39 AM

49

1265.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:28 AM

12

1265.00

TQEX

GENMAB A/S

14-Apr-2025

10:23:28 AM

23

1265.00

TQEX

3

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

10:23:30 AM

36

1265.00

CEUX

GENMAB A/S

14-Apr-2025

10:23:30 AM

36

1265.00

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

46

1264.50

XCSE

GENMAB A/S

14-Apr-2025

10:23:38 AM

3

1264.50

XCSE

GENMAB A/S

14-Apr-2025

10:23:38 AM

29

1264.50

XCSE

GENMAB A/S

14-Apr-2025

10:23:38 AM

8

1264.00

XCSE

GENMAB A/S

14-Apr-2025

10:23:38 AM

5

1264.00

TQEX

GENMAB A/S

14-Apr-2025

10:23:38 AM

13

1264.00

TQEX

GENMAB A/S

14-Apr-2025

10:23:38 AM

9

1264.00

TQEX

GENMAB A/S

14-Apr-2025

10:23:38 AM

6

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

3

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

34

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

44

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

26

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

9

1263.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

2

1263.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

3

1263.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

4

1263.50

CEUX

GENMAB A/S

14-Apr-2025

10:23:38 AM

43

1264.50

AQEU

GENMAB A/S

14-Apr-2025

10:24:37 AM

86

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:26:23 AM

76

1264.50

CEUX

GENMAB A/S

14-Apr-2025

10:26:29 AM

71

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:26:43 AM

24

1265.00

AQEU

GENMAB A/S

14-Apr-2025

10:28:29 AM

12

1265.00

XCSE

GENMAB A/S

14-Apr-2025

10:29:42 AM

36

1267.50

XCSE

GENMAB A/S

14-Apr-2025

10:29:43 AM

36

1267.50

XCSE

GENMAB A/S

14-Apr-2025

10:29:43 AM

5

1267.50

XCSE

GENMAB A/S

14-Apr-2025

10:30:37 AM

91

1268.00

XCSE

GENMAB A/S

14-Apr-2025

10:30:37 AM

21

1268.00

XCSE

GENMAB A/S

14-Apr-2025

10:30:38 AM

90

1268.00

XCSE

GENMAB A/S

14-Apr-2025

10:30:38 AM

22

1268.00

XCSE

GENMAB A/S

14-Apr-2025

10:30:38 AM

91

1268.00

XCSE

GENMAB A/S

14-Apr-2025

10:30:38 AM

21

1268.00

XCSE

GENMAB A/S

14-Apr-2025

10:30:47 AM

48

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:30:47 AM

32

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:30:47 AM

32

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:30:47 AM

4

1269.00

CEUX

GENMAB A/S

14-Apr-2025

10:30:48 AM

31

1269.50

CEUX

GENMAB A/S

14-Apr-2025

10:30:50 AM

112

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:31:14 AM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

10:31:36 AM

34

1272.00

XCSE

GENMAB A/S

14-Apr-2025

10:32:02 AM

45

1272.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:02 AM

41

1272.50

CEUX

4

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

10:32:03 AM

82

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:03 AM

31

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:03 AM

19

1272.50

TQEX

GENMAB A/S

14-Apr-2025

10:32:03 AM

7

1272.50

TQEX

GENMAB A/S

14-Apr-2025

10:32:03 AM

40

1273.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:03 AM

12

1273.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:03 AM

42

1272.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:03 AM

40

1272.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:03 AM

38

1273.00

AQEU

GENMAB A/S

14-Apr-2025

10:32:04 AM

47

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:04 AM

31

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:04 AM

34

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:04 AM

31

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:04 AM

32

1272.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:17 AM

31

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:17 AM

32

1272.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:18 AM

4

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:30 AM

89

1272.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:30 AM

39

1273.00

XCSE

GENMAB A/S

14-Apr-2025

10:32:30 AM

16

1273.00

XCSE

GENMAB A/S

14-Apr-2025

10:32:30 AM

30

1272.50

TQEX

GENMAB A/S

14-Apr-2025

10:32:30 AM

83

1272.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:30 AM

11

1272.50

AQEU

GENMAB A/S

14-Apr-2025

10:32:30 AM

32

1272.50

AQEU

GENMAB A/S

14-Apr-2025

10:32:39 AM

84

1271.50

XCSE

GENMAB A/S

14-Apr-2025

10:32:39 AM

27

1271.50

TQEX

GENMAB A/S

14-Apr-2025

10:32:39 AM

28

1271.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:39 AM

35

1271.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:39 AM

26

1271.50

CEUX

GENMAB A/S

14-Apr-2025

10:32:39 AM

28

1271.50

AQEU

GENMAB A/S

14-Apr-2025

10:33:08 AM

83

1270.50

XCSE

GENMAB A/S

14-Apr-2025

10:33:08 AM

8

1270.50

CEUX

GENMAB A/S

14-Apr-2025

10:33:09 AM

78

1270.50

CEUX

GENMAB A/S

14-Apr-2025

10:33:26 AM

25

1270.00

AQEU

GENMAB A/S

14-Apr-2025

10:33:55 AM

82

1269.00

XCSE

GENMAB A/S

14-Apr-2025

10:34:14 AM

85

1269.00

CEUX

GENMAB A/S

14-Apr-2025

10:34:32 AM

7

1268.00

CEUX

GENMAB A/S

14-Apr-2025

10:37:22 AM

22

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:37:22 AM

90

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:37:23 AM

12

1270.00

CEUX

GENMAB A/S

14-Apr-2025

10:37:23 AM

24

1270.00

CEUX

GENMAB A/S

14-Apr-2025

10:37:24 AM

32

1270.00

CEUX

GENMAB A/S

14-Apr-2025

10:37:24 AM

12

1270.00

CEUX

5

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

10:37:24 AM

3

1270.00

CEUX

GENMAB A/S

14-Apr-2025

10:37:40 AM

22

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:37:40 AM

3

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:38:10 AM

31

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:38:21 AM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

10:38:21 AM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

10:38:30 AM

85

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:38:32 AM

27

1270.50

TQEX

GENMAB A/S

14-Apr-2025

10:40:00 AM

47

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:40:00 AM

65

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:41:47 AM

39

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:41:47 AM

35

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:41:47 AM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:41:47 AM

27

1271.00

XCSE

GENMAB A/S

14-Apr-2025

10:41:47 AM

1

1271.00

TQEX

GENMAB A/S

14-Apr-2025

10:41:47 AM

24

1271.00

TQEX

GENMAB A/S

14-Apr-2025

10:41:47 AM

3

1271.00

CEUX

GENMAB A/S

14-Apr-2025

10:41:47 AM

84

1271.00

CEUX

GENMAB A/S

14-Apr-2025

10:42:33 AM

83

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:42:33 AM

35

1270.00

XCSE

GENMAB A/S

14-Apr-2025

10:42:33 AM

82

1270.00

CEUX

GENMAB A/S

14-Apr-2025

10:42:33 AM

33

1270.00

AQEU

GENMAB A/S

14-Apr-2025

10:42:45 AM

17

1269.50

TQEX

GENMAB A/S

14-Apr-2025

10:43:07 AM

83

1269.00

CEUX

GENMAB A/S

14-Apr-2025

10:43:07 AM

27

1269.00

AQEU

GENMAB A/S

14-Apr-2025

10:43:07 AM

5

1269.00

AQEU

GENMAB A/S

14-Apr-2025

10:43:15 AM

58

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:43:15 AM

24

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:45:42 AM

10

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:46:59 AM

64

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:46:59 AM

20

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:46:59 AM

35

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:46:59 AM

26

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:46:59 AM

83

1268.50

CEUX

GENMAB A/S

14-Apr-2025

10:47:10 AM

26

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:47:10 AM

35

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:47:21 AM

28

1268.00

TQEX

GENMAB A/S

14-Apr-2025

10:49:09 AM

59

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:49:23 AM

21

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:49:34 AM

37

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:49:34 AM

26

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:49:34 AM

16

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:49:34 AM

33

1269.50

XCSE

6

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

10:50:10 AM

11

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:50:10 AM

39

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:50:10 AM

23

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:50:40 AM

45

1269.00

XCSE

GENMAB A/S

14-Apr-2025

10:51:05 AM

3

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:51:05 AM

28

1268.50

TQEX

GENMAB A/S

14-Apr-2025

10:51:05 AM

86

1268.50

CEUX

GENMAB A/S

14-Apr-2025

10:51:05 AM

37

1268.50

AQEU

GENMAB A/S

14-Apr-2025

10:51:13 AM

83

1267.50

XCSE

GENMAB A/S

14-Apr-2025

10:51:13 AM

89

1267.50

CEUX

GENMAB A/S

14-Apr-2025

10:51:13 AM

34

1267.50

AQEU

GENMAB A/S

14-Apr-2025

10:53:59 AM

73

1267.50

XCSE

GENMAB A/S

14-Apr-2025

10:54:34 AM

89

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:54:34 AM

27

1268.50

TQEX

GENMAB A/S

14-Apr-2025

10:54:34 AM

89

1268.50

CEUX

GENMAB A/S

14-Apr-2025

10:54:34 AM

36

1268.50

AQEU

GENMAB A/S

14-Apr-2025

10:54:40 AM

35

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:54:40 AM

26

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:54:40 AM

10

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:56:09 AM

44

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:56:09 AM

42

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:56:09 AM

82

1268.50

CEUX

GENMAB A/S

14-Apr-2025

10:56:14 AM

25

1268.50

TQEX

GENMAB A/S

14-Apr-2025

10:56:29 AM

32

1268.00

AQEU

GENMAB A/S

14-Apr-2025

10:56:40 AM

48

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:56:40 AM

32

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:56:40 AM

21

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:56:40 AM

11

1268.50

XCSE

GENMAB A/S

14-Apr-2025

10:59:24 AM

84

1269.50

XCSE

GENMAB A/S

14-Apr-2025

10:59:30 AM

34

1269.50

XCSE

GENMAB A/S

14-Apr-2025

11:00:23 AM

31

1269.50

XCSE

GENMAB A/S

14-Apr-2025

11:00:23 AM

9

1270.00

CEUX

GENMAB A/S

14-Apr-2025

11:01:00 AM

12

1270.50

XCSE

GENMAB A/S

14-Apr-2025

11:01:00 AM

100

1270.50

XCSE

GENMAB A/S

14-Apr-2025

11:01:02 AM

36

1270.50

XCSE

GENMAB A/S

14-Apr-2025

11:01:34 AM

75

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:01:34 AM

5

1271.50

CEUX

GENMAB A/S

14-Apr-2025

11:03:43 AM

88

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:03:43 AM

27

1272.50

TQEX

GENMAB A/S

14-Apr-2025

11:03:43 AM

39

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:03:43 AM

47

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:03:43 AM

20

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:04:42 AM

5

1272.50

XCSE

7

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

11:04:42 AM

89

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:04:42 AM

28

1273.00

AQEU

GENMAB A/S

14-Apr-2025

11:05:41 AM

35

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:05:41 AM

13

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:05:41 AM

41

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:05:41 AM

84

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:05:41 AM

25

1272.50

TQEX

GENMAB A/S

14-Apr-2025

11:05:41 AM

5

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:05:41 AM

5

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:05:41 AM

32

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:05:45 AM

32

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:06:34 AM

46

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:06:34 AM

26

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:06:39 AM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:06:39 AM

26

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:06:40 AM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:07:03 AM

29

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:07:03 AM

4

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:07:03 AM

82

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:07:03 AM

26

1271.50

TQEX

GENMAB A/S

14-Apr-2025

11:07:03 AM

5

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

5

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

87

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

7

1271.00

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

2

1271.00

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

45

1271.00

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

24

1271.00

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

5

1271.00

CEUX

GENMAB A/S

14-Apr-2025

11:07:03 AM

28

1272.00

AQEU

GENMAB A/S

14-Apr-2025

11:08:27 AM

36

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:10:26 AM

39

1272.00

XCSE

GENMAB A/S

14-Apr-2025

11:10:26 AM

28

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:10:26 AM

11

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:10:26 AM

34

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:10:26 AM

25

1272.00

TQEX

GENMAB A/S

14-Apr-2025

11:10:26 AM

87

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:10:30 AM

43

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:10:40 AM

5

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:11:16 AM

21

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:11:20 AM

62

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:12:10 AM

35

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:12:10 AM

53

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:12:10 AM

25

1272.50

TQEX

8

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

11:12:10 AM

25

1272.50

AQEU

GENMAB A/S

14-Apr-2025

11:14:42 AM

55

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:14:42 AM

12

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:14:42 AM

17

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:14:42 AM

28

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:15:55 AM

39

1274.00

CEUX

GENMAB A/S

14-Apr-2025

11:15:55 AM

28

1274.00

CEUX

GENMAB A/S

14-Apr-2025

11:16:12 AM

33

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:16:12 AM

15

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:16:12 AM

39

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:16:13 AM

49

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:17:02 AM

85

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:17:48 AM

32

1274.00

CEUX

GENMAB A/S

14-Apr-2025

11:18:16 AM

15

1273.50

TQEX

GENMAB A/S

14-Apr-2025

11:18:16 AM

46

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:18:16 AM

27

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:18:16 AM

12

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:18:17 AM

10

1273.50

TQEX

GENMAB A/S

14-Apr-2025

11:18:29 AM

39

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:18:29 AM

26

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:18:29 AM

21

1273.50

AQEU

GENMAB A/S

14-Apr-2025

11:18:29 AM

12

1273.50

AQEU

GENMAB A/S

14-Apr-2025

11:19:49 AM

55

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:18 AM

32

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:18 AM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:18 AM

12

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:18 AM

26

1272.50

TQEX

GENMAB A/S

14-Apr-2025

11:20:18 AM

25

1272.50

AQEU

GENMAB A/S

14-Apr-2025

11:20:20 AM

58

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:20 AM

11

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:20 AM

82

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:20:23 AM

3

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:25 AM

88

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:25 AM

50

1272.00

XCSE

GENMAB A/S

14-Apr-2025

11:20:25 AM

3

1272.00

XCSE

GENMAB A/S

14-Apr-2025

11:20:25 AM

58

1272.00

XCSE

GENMAB A/S

14-Apr-2025

11:20:25 AM

1

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:20:25 AM

47

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:20:25 AM

42

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:21:29 AM

31

1271.50

AQEU

GENMAB A/S

14-Apr-2025

11:22:17 AM

88

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:22:17 AM

25

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:22:17 AM

25

1271.50

TQEX

9

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

11:23:09 AM

82

1271.00

CEUX

GENMAB A/S

14-Apr-2025

11:23:31 AM

38

1270.50

XCSE

GENMAB A/S

14-Apr-2025

11:23:31 AM

87

1270.00

XCSE

GENMAB A/S

14-Apr-2025

11:23:50 AM

35

1270.00

XCSE

GENMAB A/S

14-Apr-2025

11:24:18 AM

48

1270.00

XCSE

GENMAB A/S

14-Apr-2025

11:24:18 AM

34

1270.00

AQEU

GENMAB A/S

14-Apr-2025

11:26:33 AM

35

1270.00

XCSE

GENMAB A/S

14-Apr-2025

11:26:33 AM

13

1270.00

XCSE

GENMAB A/S

14-Apr-2025

11:26:33 AM

47

1270.00

XCSE

GENMAB A/S

14-Apr-2025

11:26:33 AM

75

1269.50

CEUX

GENMAB A/S

14-Apr-2025

11:26:33 AM

10

1269.50

CEUX

GENMAB A/S

14-Apr-2025

11:29:38 AM

89

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:29:38 AM

58

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:29:38 AM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:29:38 AM

25

1271.50

TQEX

GENMAB A/S

14-Apr-2025

11:29:38 AM

85

1271.50

CEUX

GENMAB A/S

14-Apr-2025

11:29:53 AM

10

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:29:53 AM

21

1271.50

XCSE

GENMAB A/S

14-Apr-2025

11:30:48 AM

22

1272.00

AQEU

GENMAB A/S

14-Apr-2025

11:31:44 AM

84

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:31:45 AM

51

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:31:45 AM

47

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:31:45 AM

14

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:31:45 AM

76

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:31:45 AM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:32:10 AM

10

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:32:10 AM

58

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:32:10 AM

44

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:32:57 AM

85

1274.00

XCSE

GENMAB A/S

14-Apr-2025

11:32:57 AM

25

1274.00

AQEU

GENMAB A/S

14-Apr-2025

11:32:57 AM

25

1274.50

TQEX

GENMAB A/S

14-Apr-2025

11:32:57 AM

83

1274.50

CEUX

GENMAB A/S

14-Apr-2025

11:35:50 AM

13

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:36:59 AM

84

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:36:59 AM

68

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:36:59 AM

15

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:36:59 AM

25

1273.50

TQEX

GENMAB A/S

14-Apr-2025

11:36:59 AM

75

1273.50

CEUX

GENMAB A/S

14-Apr-2025

11:37:00 AM

31

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:37:00 AM

11

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:37:13 AM

35

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:37:24 AM

27

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:37:26 AM

35

1273.00

XCSE

10

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

11:37:26 AM

21

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:39:00 AM

31

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:39:00 AM

29

1272.50

AQEU

GENMAB A/S

14-Apr-2025

11:39:00 AM

26

1272.50

TQEX

GENMAB A/S

14-Apr-2025

11:39:00 AM

45

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:39:00 AM

3

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:39:30 AM

50

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:39:30 AM

58

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:39:49 AM

25

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:39:49 AM

1

1272.00

CEUX

GENMAB A/S

14-Apr-2025

11:40:43 AM

50

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:40:43 AM

12

1272.50

XCSE

GENMAB A/S

14-Apr-2025

11:41:29 AM

84

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:42:50 AM

37

1274.50

XCSE

GENMAB A/S

14-Apr-2025

11:43:30 AM

5

1274.50

XCSE

GENMAB A/S

14-Apr-2025

11:43:55 AM

44

1275.50

XCSE

GENMAB A/S

14-Apr-2025

11:44:20 AM

83

1275.50

XCSE

GENMAB A/S

14-Apr-2025

11:44:20 AM

25

1275.50

TQEX

GENMAB A/S

14-Apr-2025

11:45:17 AM

15

1275.50

CEUX

GENMAB A/S

14-Apr-2025

11:45:48 AM

39

1275.50

XCSE

GENMAB A/S

14-Apr-2025

11:46:19 AM

38

1275.50

XCSE

GENMAB A/S

14-Apr-2025

11:46:19 AM

55

1275.00

CEUX

GENMAB A/S

14-Apr-2025

11:46:19 AM

32

1275.00

CEUX

GENMAB A/S

14-Apr-2025

11:46:24 AM

26

1275.00

AQEU

GENMAB A/S

14-Apr-2025

11:46:30 AM

47

1275.00

XCSE

GENMAB A/S

14-Apr-2025

11:46:30 AM

35

1275.00

XCSE

GENMAB A/S

14-Apr-2025

11:46:30 AM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

11:46:30 AM

49

1274.50

XCSE

GENMAB A/S

14-Apr-2025

11:46:30 AM

36

1274.50

XCSE

GENMAB A/S

14-Apr-2025

11:46:30 AM

10

1274.00

CEUX

GENMAB A/S

14-Apr-2025

11:46:30 AM

2

1274.00

CEUX

GENMAB A/S

14-Apr-2025

11:47:37 AM

32

1274.50

CEUX

GENMAB A/S

14-Apr-2025

11:47:37 AM

25

1274.50

CEUX

GENMAB A/S

14-Apr-2025

11:48:01 AM

82

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:48:01 AM

26

1274.00

AQEU

GENMAB A/S

14-Apr-2025

11:48:01 AM

74

1274.00

CEUX

GENMAB A/S

14-Apr-2025

11:49:01 AM

24

1273.00

AQEU

GENMAB A/S

14-Apr-2025

11:49:01 AM

25

1273.00

TQEX

GENMAB A/S

14-Apr-2025

11:49:01 AM

86

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:50:09 AM

66

1272.00

XCSE

GENMAB A/S

14-Apr-2025

11:51:43 AM

9

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:54:34 AM

25

1272.50

TQEX

GENMAB A/S

14-Apr-2025

11:54:44 AM

22

1272.50

AQEU

11

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

11:55:19 AM

16

1272.00

XCSE

GENMAB A/S

14-Apr-2025

11:55:57 AM

36

1272.50

CEUX

GENMAB A/S

14-Apr-2025

11:56:20 AM

29

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:56:20 AM

27

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:56:20 AM

11

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:56:20 AM

11

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:56:21 AM

10

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:56:21 AM

1

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:58:08 AM

42

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:58:08 AM

50

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:58:08 AM

42

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:58:08 AM

11

1273.00

XCSE

GENMAB A/S

14-Apr-2025

11:58:08 AM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:59:13 AM

8

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

10

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

35

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

43

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

15

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

1

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

62

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

13

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:13 AM

37

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:14 AM

6

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:14 AM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:14 AM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:20 AM

10

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:20 AM

87

1273.00

CEUX

GENMAB A/S

14-Apr-2025

11:59:21 AM

38

1273.50

XCSE

GENMAB A/S

14-Apr-2025

11:59:51 AM

36

1274.00

CEUX

GENMAB A/S

14-Apr-2025

12:01:10 PM

84

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:01:10 PM

36

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:01:43 PM

47

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:01:43 PM

58

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:01:43 PM

7

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:01:43 PM

29

1274.00

AQEU

GENMAB A/S

14-Apr-2025

12:01:43 PM

35

1274.00

TQEX

GENMAB A/S

14-Apr-2025

12:01:44 PM

3

1274.00

CEUX

GENMAB A/S

14-Apr-2025

12:02:59 PM

33

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:02:59 PM

37

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:02:59 PM

2

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:04:04 PM

76

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:04:04 PM

8

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:04:04 PM

32

1276.00

CEUX

12

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

12:04:04 PM

1

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:04:20 PM

74

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:04:20 PM

15

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:04:20 PM

36

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:04:20 PM

4

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:04:25 PM

36

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:05:01 PM

14

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:05:05 PM

39

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:05:27 PM

6

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:05:45 PM

5

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:05:45 PM

6

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:06:19 PM

6

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:06:19 PM

6

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:06:19 PM

36

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:06:30 PM

46

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:06:37 PM

18

1275.50

CEUX

GENMAB A/S

14-Apr-2025

12:06:38 PM

42

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:07:16 PM

25

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:08:11 PM

28

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:08:43 PM

83

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:09:01 PM

40

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:10:39 PM

63

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:10:41 PM

20

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:10:41 PM

6

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:11:05 PM

6

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:13:03 PM

15

1276.50

CEUX

GENMAB A/S

14-Apr-2025

12:13:13 PM

82

1276.50

CEUX

GENMAB A/S

14-Apr-2025

12:13:55 PM

48

1277.00

XCSE

GENMAB A/S

14-Apr-2025

12:14:27 PM

10

1277.00

XCSE

GENMAB A/S

14-Apr-2025

12:14:27 PM

23

1277.00

XCSE

GENMAB A/S

14-Apr-2025

12:16:12 PM

45

1277.00

XCSE

GENMAB A/S

14-Apr-2025

12:16:19 PM

78

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:16:19 PM

45

1276.50

AQEU

GENMAB A/S

14-Apr-2025

12:16:19 PM

3

1276.50

CEUX

GENMAB A/S

14-Apr-2025

12:17:07 PM

8

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:07 PM

2

1276.00

TQEX

GENMAB A/S

14-Apr-2025

12:17:07 PM

44

1276.00

TQEX

GENMAB A/S

14-Apr-2025

12:17:08 PM

44

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:08 PM

13

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:08 PM

44

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:09 PM

99

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:09 PM

13

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:09 PM

99

1276.00

XCSE

13

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

12:17:09 PM

13

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:17:09 PM

1

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:19:43 PM

44

1276.50

CEUX

GENMAB A/S

14-Apr-2025

12:20:44 PM

49

1276.50

XCSE

GENMAB A/S

14-Apr-2025

12:20:44 PM

40

1276.50

CEUX

GENMAB A/S

14-Apr-2025

12:21:49 PM

36

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:49 PM

39

1276.00

AQEU

GENMAB A/S

14-Apr-2025

12:21:49 PM

15

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:21:49 PM

86

1275.50

CEUX

GENMAB A/S

14-Apr-2025

12:21:51 PM

36

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

36

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

23

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

13

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

35

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

10

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

31

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

11

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

11

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

43

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

36

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:21:53 PM

11

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:25:09 PM

84

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:45 PM

30

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:45 PM

10

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:45 PM

35

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:45 PM

37

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:46 PM

24

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:46 PM

10

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:46 PM

11

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:46 PM

30

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:46 PM

11

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:46 PM

26

1278.00

XCSE

GENMAB A/S

14-Apr-2025

12:27:56 PM

27

1277.50

XCSE

GENMAB A/S

14-Apr-2025

12:28:47 PM

47

1277.50

XCSE

GENMAB A/S

14-Apr-2025

12:29:03 PM

83

1277.00

XCSE

GENMAB A/S

14-Apr-2025

12:29:03 PM

38

1277.00

XCSE

GENMAB A/S

14-Apr-2025

12:29:03 PM

84

1277.00

CEUX

GENMAB A/S

14-Apr-2025

12:29:03 PM

10

1277.00

CEUX

GENMAB A/S

14-Apr-2025

12:30:13 PM

84

1276.00

CEUX

GENMAB A/S

14-Apr-2025

12:32:39 PM

66

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:34:13 PM

23

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:34:13 PM

10

1276.00

XCSE

GENMAB A/S

14-Apr-2025

12:34:13 PM

53

1276.00

TQEX

14

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

12:34:13 PM

39

1276.00

AQEU

GENMAB A/S

14-Apr-2025

12:34:49 PM

84

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:34:49 PM

27

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:34:49 PM

11

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:34:49 PM

43

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:34:49 PM

31

1275.00

TQEX

GENMAB A/S

14-Apr-2025

12:34:49 PM

28

1275.00

AQEU

GENMAB A/S

14-Apr-2025

12:34:49 PM

36

1275.50

CEUX

GENMAB A/S

14-Apr-2025

12:34:49 PM

2

1275.50

CEUX

GENMAB A/S

14-Apr-2025

12:34:49 PM

47

1275.50

CEUX

GENMAB A/S

14-Apr-2025

12:34:49 PM

86

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:35:50 PM

51

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:35:50 PM

35

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:40:28 PM

31

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:40:28 PM

54

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:40:41 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:40:41 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:40:41 PM

1

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:40:41 PM

5

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:40:41 PM

5

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:40:41 PM

6

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:41:45 PM

35

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

34

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

13

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

13

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

13

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

30

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:41:45 PM

36

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:41:45 PM

5

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:41:45 PM

1

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:41:45 PM

48

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:41:45 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:09 PM

64

1273.50

XCSE

GENMAB A/S

14-Apr-2025

12:42:09 PM

1

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:09 PM

16

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:09 PM

13

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:09 PM

11

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:09 PM

22

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:10 PM

1

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:11 PM

2

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

36

1274.50

CEUX

15

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

12:42:23 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

32

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:23 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:24 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:24 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:24 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:24 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:24 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:24 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:25 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:26 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:26 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:26 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:26 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:26 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:26 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:27 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:57 PM

15

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:57 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:57 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:57 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:57 PM

11

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:42:57 PM

7

1274.50

CEUX

16

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

12:43:14 PM

24

1274.00

TQEX

GENMAB A/S

14-Apr-2025

12:43:14 PM

7

1274.00

TQEX

GENMAB A/S

14-Apr-2025

12:43:14 PM

25

1274.00

AQEU

GENMAB A/S

14-Apr-2025

12:43:14 PM

84

1274.00

CEUX

GENMAB A/S

14-Apr-2025

12:43:40 PM

47

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:43:40 PM

6

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:47:09 PM

23

1273.50

XCSE

GENMAB A/S

14-Apr-2025

12:47:15 PM

63

1274.00

TQEX

GENMAB A/S

14-Apr-2025

12:47:15 PM

67

1274.00

CEUX

GENMAB A/S

14-Apr-2025

12:47:47 PM

22

1274.00

CEUX

GENMAB A/S

14-Apr-2025

12:49:39 PM

35

1275.00

TQEX

GENMAB A/S

14-Apr-2025

12:49:53 PM

11

1275.00

TQEX

GENMAB A/S

14-Apr-2025

12:51:13 PM

12

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:51:13 PM

1

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:51:13 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:51:13 PM

34

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:51:13 PM

85

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:53:26 PM

49

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:26 PM

13

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:26 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:26 PM

7

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:27 PM

14

1274.50

AQEU

GENMAB A/S

14-Apr-2025

12:53:29 PM

40

1274.50

AQEU

GENMAB A/S

14-Apr-2025

12:53:38 PM

83

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:53:39 PM

46

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:39 PM

12

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:39 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:39 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:40 PM

10

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:40 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:40 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:53:40 PM

48

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

28

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

12

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

12

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

13

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

43

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

10

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

43

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

12

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:54:54 PM

13

1275.50

XCSE

GENMAB A/S

14-Apr-2025

12:55:48 PM

45

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:56:09 PM

9

1274.00

TQEX

17

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

12:56:09 PM

9

1274.00

TQEX

GENMAB A/S

14-Apr-2025

12:56:09 PM

13

1275.00

CEUX

GENMAB A/S

14-Apr-2025

12:56:15 PM

11

1274.50

XCSE

GENMAB A/S

14-Apr-2025

12:56:16 PM

1

1274.50

XCSE

GENMAB A/S

14-Apr-2025

12:56:20 PM

57

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:57:25 PM

86

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:57:25 PM

25

1275.00

TQEX

GENMAB A/S

14-Apr-2025

12:57:29 PM

27

1274.50

CEUX

GENMAB A/S

14-Apr-2025

12:57:30 PM

10

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:57:30 PM

32

1275.00

XCSE

GENMAB A/S

14-Apr-2025

12:58:08 PM

59

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:58:09 PM

28

1274.50

AQEU

GENMAB A/S

14-Apr-2025

12:58:11 PM

27

1274.00

XCSE

GENMAB A/S

14-Apr-2025

12:58:11 PM

26

1274.00

TQEX

GENMAB A/S

14-Apr-2025

1:00:08 PM

68

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:00:08 PM

36

1274.00

CEUX

GENMAB A/S

14-Apr-2025

1:00:23 PM

11

1274.00

CEUX

GENMAB A/S

14-Apr-2025

1:00:30 PM

26

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:01:16 PM

7

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:01:16 PM

47

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:01:16 PM

43

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:01:16 PM

5

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:02:50 PM

39

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:02:50 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:02:50 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:02:50 PM

10

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:02:50 PM

9

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:04:40 PM

1

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:04:40 PM

43

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:04:40 PM

11

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:04:40 PM

12

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:04:40 PM

21

1275.00

XCSE

GENMAB A/S

14-Apr-2025

1:04:41 PM

36

1274.50

CEUX

GENMAB A/S

14-Apr-2025

1:06:23 PM

85

1274.00

CEUX

GENMAB A/S

14-Apr-2025

1:06:40 PM

88

1274.00

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

43

1274.50

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

12

1274.50

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

13

1274.50

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

4

1274.50

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

13

1274.50

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

27

1274.50

XCSE

GENMAB A/S

14-Apr-2025

1:06:40 PM

26

1274.00

TQEX

GENMAB A/S

14-Apr-2025

1:06:40 PM

30

1274.00

CEUX

18

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

1:06:49 PM

10

1273.00

XCSE

GENMAB A/S

14-Apr-2025

1:06:49 PM

41

1273.50

AQEU

GENMAB A/S

14-Apr-2025

1:06:49 PM

2

1273.50

AQEU

GENMAB A/S

14-Apr-2025

1:06:49 PM

11

1273.50

AQEU

GENMAB A/S

14-Apr-2025

1:07:27 PM

77

1273.00

XCSE

GENMAB A/S

14-Apr-2025

1:07:27 PM

3

1273.50

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

9

1273.50

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

1

1273.50

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

47

1273.50

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

4

1273.00

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

20

1273.00

CEUX

GENMAB A/S

14-Apr-2025

1:07:27 PM

64

1273.00

CEUX

GENMAB A/S

14-Apr-2025

1:07:48 PM

15

1272.50

TQEX

GENMAB A/S

14-Apr-2025

1:08:04 PM

33

1272.50

TQEX

GENMAB A/S

14-Apr-2025

1:08:04 PM

42

1272.50

AQEU

GENMAB A/S

14-Apr-2025

1:08:04 PM

12

1272.00

CEUX

GENMAB A/S

14-Apr-2025

1:08:04 PM

73

1272.00

CEUX

GENMAB A/S

14-Apr-2025

1:08:06 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:08:06 PM

74

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:12:33 PM

8

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:12:51 PM

74

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:13:00 PM

27

1271.00

TQEX

GENMAB A/S

14-Apr-2025

1:13:00 PM

27

1271.00

AQEU

GENMAB A/S

14-Apr-2025

1:13:00 PM

3

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:13:46 PM

11

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:46 PM

11

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:46 PM

43

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:47 PM

10

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:47 PM

43

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:47 PM

30

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:47 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:13:47 PM

11

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:14:13 PM

36

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:14:13 PM

49

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:14:13 PM

25

1271.00

TQEX

GENMAB A/S

14-Apr-2025

1:14:13 PM

25

1271.00

AQEU

GENMAB A/S

14-Apr-2025

1:14:58 PM

16

1270.00

AQEU

GENMAB A/S

14-Apr-2025

1:15:30 PM

89

1269.50

XCSE

GENMAB A/S

14-Apr-2025

1:16:27 PM

4

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:16:27 PM

26

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:16:28 PM

26

1270.00

TQEX

GENMAB A/S

14-Apr-2025

1:16:53 PM

86

1269.00

XCSE

19

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

1:16:53 PM

86

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:18:29 PM

7

1268.50

XCSE

GENMAB A/S

14-Apr-2025

1:18:29 PM

25

1268.50

AQEU

GENMAB A/S

14-Apr-2025

1:18:29 PM

82

1268.50

CEUX

GENMAB A/S

14-Apr-2025

1:18:30 PM

85

1268.00

XCSE

GENMAB A/S

14-Apr-2025

1:18:53 PM

86

1269.00

XCSE

GENMAB A/S

14-Apr-2025

1:21:41 PM

89

1269.50

XCSE

GENMAB A/S

14-Apr-2025

1:21:41 PM

33

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:21:42 PM

27

1269.50

AQEU

GENMAB A/S

14-Apr-2025

1:21:42 PM

53

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:24:11 PM

13

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:24:11 PM

43

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:24:11 PM

31

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:24:11 PM

25

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:24:12 PM

13

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:24:53 PM

72

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:25:02 PM

12

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:25:02 PM

11

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:25:02 PM

25

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:25:02 PM

31

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:25:02 PM

33

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:25:02 PM

25

1269.50

TQEX

GENMAB A/S

14-Apr-2025

1:25:04 PM

84

1269.00

XCSE

GENMAB A/S

14-Apr-2025

1:25:04 PM

15

1269.50

AQEU

GENMAB A/S

14-Apr-2025

1:25:50 PM

82

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:25:50 PM

86

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:27:53 PM

11

1272.00

TQEX

GENMAB A/S

14-Apr-2025

1:27:58 PM

14

1272.00

TQEX

GENMAB A/S

14-Apr-2025

1:29:16 PM

87

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:29:16 PM

25

1272.00

XCSE

GENMAB A/S

14-Apr-2025

1:29:16 PM

41

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:29:16 PM

47

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:31:00 PM

49

1272.00

XCSE

GENMAB A/S

14-Apr-2025

1:31:20 PM

12

1272.00

XCSE

GENMAB A/S

14-Apr-2025

1:31:20 PM

21

1272.00

XCSE

GENMAB A/S

14-Apr-2025

1:31:45 PM

14

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:31:50 PM

13

1272.00

XCSE

GENMAB A/S

14-Apr-2025

1:31:50 PM

28

1272.00

XCSE

GENMAB A/S

14-Apr-2025

1:31:51 PM

17

1271.50

AQEU

GENMAB A/S

14-Apr-2025

1:32:02 PM

55

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:32:13 PM

84

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:32:13 PM

16

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:32:14 PM

9

1271.50

AQEU

20

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

1:34:27 PM

41

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:34:27 PM

71

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:34:29 PM

25

1271.00

TQEX

GENMAB A/S

14-Apr-2025

1:34:29 PM

21

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:34:39 PM

83

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:34:39 PM

68

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:34:40 PM

13

1270.00

TQEX

GENMAB A/S

14-Apr-2025

1:34:40 PM

12

1270.00

AQEU

GENMAB A/S

14-Apr-2025

1:37:14 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:37:14 PM

22

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:37:14 PM

29

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:37:14 PM

31

1270.50

TQEX

GENMAB A/S

14-Apr-2025

1:38:10 PM

47

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:38:10 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:38:10 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:38:10 PM

41

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:38:10 PM

2

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:38:20 PM

85

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:40:59 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:44:09 PM

20

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:44:10 PM

12

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:44:10 PM

15

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:45:11 PM

31

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:45:11 PM

52

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:46:09 PM

41

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:46:09 PM

12

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:46:09 PM

22

1270.50

XCSE

GENMAB A/S

14-Apr-2025

1:46:09 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:46:09 PM

14

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:46:35 PM

26

1270.50

TQEX

GENMAB A/S

14-Apr-2025

1:47:39 PM

54

1269.50

XCSE

GENMAB A/S

14-Apr-2025

1:47:39 PM

14

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:48:58 PM

19

1270.00

AQEU

GENMAB A/S

14-Apr-2025

1:48:58 PM

36

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:48:58 PM

3

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:48:59 PM

50

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:48:59 PM

11

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:50:29 PM

35

1269.50

XCSE

GENMAB A/S

14-Apr-2025

1:50:29 PM

28

1269.50

TQEX

GENMAB A/S

14-Apr-2025

1:50:29 PM

2

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:50:29 PM

20

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:50:53 PM

63

1269.50

CEUX

GENMAB A/S

14-Apr-2025

1:51:10 PM

45

1270.00

CEUX

21

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

1:51:42 PM

37

1270.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:23 PM

6

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

35

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:23 PM

32

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:23 PM

11

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:23 PM

14

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:23 PM

30

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:23 PM

5

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:23 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:53:37 PM

28

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:50 PM

24

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:50 PM

14

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:53:50 PM

19

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:54:49 PM

26

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:54:49 PM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:54:49 PM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:55:16 PM

42

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:55:16 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:55:16 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

1:55:16 PM

5

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:55:16 PM

5

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:55:17 PM

36

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:55:17 PM

5

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:55:17 PM

5

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:55:18 PM

36

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:56:02 PM

6

1271.50

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

35

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

4

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

34

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

30

1271.00

XCSE

22

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

1:56:29 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

4

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:29 PM

36

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

5

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

1

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

47

1271.00

CEUX

GENMAB A/S

14-Apr-2025

1:56:29 PM

30

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:56:30 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

31

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

33

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:30 PM

25

1270.50

TQEX

GENMAB A/S

14-Apr-2025

1:56:30 PM

16

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:56:30 PM

35

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:56:30 PM

6

1270.50

CEUX

GENMAB A/S

14-Apr-2025

1:56:40 PM

49

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:40 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:40 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:40 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:40 PM

17

1270.50

AQEU

GENMAB A/S

14-Apr-2025

1:56:44 PM

85

1270.00

XCSE

GENMAB A/S

14-Apr-2025

1:56:44 PM

35

1270.50

AQEU

GENMAB A/S

14-Apr-2025

1:58:10 PM

89

1269.00

XCSE

GENMAB A/S

14-Apr-2025

1:58:10 PM

22

1269.50

TQEX

GENMAB A/S

14-Apr-2025

1:58:10 PM

3

1269.50

TQEX

GENMAB A/S

14-Apr-2025

1:58:10 PM

32

1269.00

AQEU

GENMAB A/S

14-Apr-2025

1:58:10 PM

82

1269.00

CEUX

GENMAB A/S

14-Apr-2025

1:58:29 PM

82

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:00:13 PM

86

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:01:57 PM

42

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:01:57 PM

40

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:01:57 PM

35

1268.50

XCSE

23

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:01:57 PM

12

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:02:01 PM

31

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:02:01 PM

13

1268.00

TQEX

GENMAB A/S

14-Apr-2025

2:03:04 PM

60

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:03:04 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:03:04 PM

14

1268.00

TQEX

GENMAB A/S

14-Apr-2025

2:03:04 PM

26

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:03:04 PM

20

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:03:04 PM

28

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:03:04 PM

42

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:03:09 PM

8

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:04:19 PM

42

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:04:19 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:04:19 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:04:22 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:04:22 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:04:47 PM

2

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:04:52 PM

10

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:04:52 PM

43

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:04:52 PM

11

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:04:52 PM

11

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:04:52 PM

2

1269.00

TQEX

GENMAB A/S

14-Apr-2025

2:04:52 PM

2

1269.00

TQEX

GENMAB A/S

14-Apr-2025

2:05:11 PM

32

1269.00

TQEX

GENMAB A/S

14-Apr-2025

2:05:20 PM

11

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:20 PM

12

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:20 PM

43

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:20 PM

35

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:20 PM

11

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:34 PM

77

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:34 PM

6

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:05:34 PM

36

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:05:35 PM

32

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:05:35 PM

65

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:07:05 PM

24

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:08:49 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

43

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

37

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

4

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

3

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

6

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

5

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:08:49 PM

1

1268.00

TQEX

24

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:08:49 PM

24

1268.00

TQEX

GENMAB A/S

14-Apr-2025

2:08:49 PM

8

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:08:49 PM

37

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:08:49 PM

2

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:09:09 PM

3

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:09:29 PM

64

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:09:30 PM

5

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:09:30 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:09:30 PM

13

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:09:30 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:09:30 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:09:30 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:09:48 PM

17

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:09:54 PM

31

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:09:54 PM

36

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:09:54 PM

11

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:09:54 PM

5

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:09:54 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:09:54 PM

5

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:08 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

11

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

5

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

3

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

2

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

5

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:09 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:11 PM

35

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:10:11 PM

8

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:10:11 PM

31

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:10:14 PM

5

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:14 PM

5

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:14 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

2:10:23 PM

10

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:11:05 PM

12

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:11:05 PM

14

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:11:11 PM

8

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:11:12 PM

66

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:11:12 PM

3

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:12:09 PM

20

1267.50

CEUX

GENMAB A/S

14-Apr-2025

2:12:09 PM

65

1267.00

CEUX

GENMAB A/S

14-Apr-2025

2:12:14 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:12:14 PM

15

1267.50

XCSE

25

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:12:14 PM

48

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:13:05 PM

38

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:13:05 PM

20

1267.00

CEUX

GENMAB A/S

14-Apr-2025

2:13:16 PM

15

1267.00

AQEU

GENMAB A/S

14-Apr-2025

2:13:50 PM

43

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:13:50 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:13:50 PM

43

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:13:50 PM

19

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:13:50 PM

36

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:13:50 PM

5

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:13:50 PM

6

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:13:50 PM

6

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:14:01 PM

87

1267.50

XCSE

GENMAB A/S

14-Apr-2025

2:14:01 PM

9

1267.50

TQEX

GENMAB A/S

14-Apr-2025

2:14:01 PM

14

1267.50

TQEX

GENMAB A/S

14-Apr-2025

2:14:01 PM

16

1267.50

TQEX

GENMAB A/S

14-Apr-2025

2:14:01 PM

33

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:14:01 PM

25

1267.50

CEUX

GENMAB A/S

14-Apr-2025

2:16:22 PM

35

1268.50

XCSE

GENMAB A/S

14-Apr-2025

2:16:22 PM

80

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:16:22 PM

2

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:16:22 PM

35

1268.00

TQEX

GENMAB A/S

14-Apr-2025

2:16:22 PM

15

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:16:22 PM

87

1268.00

CEUX

GENMAB A/S

14-Apr-2025

2:16:29 PM

16

1268.00

AQEU

GENMAB A/S

14-Apr-2025

2:17:59 PM

33

1267.50

TQEX

GENMAB A/S

14-Apr-2025

2:18:00 PM

21

1267.50

CEUX

GENMAB A/S

14-Apr-2025

2:18:52 PM

30

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:18:52 PM

50

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:18:52 PM

30

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:18:52 PM

2

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:18:52 PM

43

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:18:52 PM

43

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:18:52 PM

10

1267.50

TQEX

GENMAB A/S

14-Apr-2025

2:19:20 PM

19

1268.00

XCSE

GENMAB A/S

14-Apr-2025

2:19:51 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:19:51 PM

47

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:19:51 PM

5

1269.00

XCSE

GENMAB A/S

14-Apr-2025

2:21:37 PM

31

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:21:44 PM

45

1270.00

XCSE

GENMAB A/S

14-Apr-2025

2:21:44 PM

7

1270.00

XCSE

GENMAB A/S

14-Apr-2025

2:21:44 PM

60

1270.00

XCSE

GENMAB A/S

14-Apr-2025

2:21:44 PM

33

1270.00

CEUX

26

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:21:44 PM

44

1270.00

CEUX

GENMAB A/S

14-Apr-2025

2:21:44 PM

35

1270.00

CEUX

GENMAB A/S

14-Apr-2025

2:21:56 PM

17

1270.00

CEUX

GENMAB A/S

14-Apr-2025

2:22:34 PM

9

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:22:38 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:22:38 PM

5

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:22:40 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:22:40 PM

6

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:23:42 PM

67

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:23:44 PM

2

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:23:46 PM

62

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:23:46 PM

21

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:24:00 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:24:00 PM

41

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:24:00 PM

43

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:24:00 PM

18

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:24:49 PM

85

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:26:49 PM

89

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:26:49 PM

112

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:26:49 PM

57

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:26:49 PM

30

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:26:49 PM

25

1270.00

TQEX

GENMAB A/S

14-Apr-2025

2:26:49 PM

36

1271.00

AQEU

GENMAB A/S

14-Apr-2025

2:26:49 PM

40

1270.00

AQEU

GENMAB A/S

14-Apr-2025

2:26:49 PM

84

1271.00

CEUX

GENMAB A/S

14-Apr-2025

2:26:49 PM

25

1271.00

CEUX

GENMAB A/S

14-Apr-2025

2:26:49 PM

25

1270.00

CEUX

GENMAB A/S

14-Apr-2025

2:26:51 PM

18

1269.50

CEUX

GENMAB A/S

14-Apr-2025

2:27:26 PM

1

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:27:26 PM

69

1269.50

CEUX

GENMAB A/S

14-Apr-2025

2:28:52 PM

42

1270.00

XCSE

GENMAB A/S

14-Apr-2025

2:28:52 PM

84

1269.50

XCSE

GENMAB A/S

14-Apr-2025

2:29:13 PM

76

1269.50

CEUX

GENMAB A/S

14-Apr-2025

2:32:19 PM

87

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

54

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

10

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

35

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

49

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

51

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:32:19 PM

7

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:32:19 PM

5

1271.00

TQEX

27

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:32:19 PM

22

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:32:19 PM

84

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:32:19 PM

4

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:32:32 PM

9

1271.00

AQEU

GENMAB A/S

14-Apr-2025

2:32:44 PM

18

1271.00

AQEU

GENMAB A/S

14-Apr-2025

2:33:10 PM

54

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:33:10 PM

10

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:36:33 PM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:36:33 PM

54

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:36:33 PM

11

1272.50

CEUX

GENMAB A/S

14-Apr-2025

2:36:33 PM

28

1272.50

CEUX

GENMAB A/S

14-Apr-2025

2:38:04 PM

48

1274.50

XCSE

GENMAB A/S

14-Apr-2025

2:38:23 PM

48

1274.50

XCSE

GENMAB A/S

14-Apr-2025

2:38:23 PM

36

1274.50

CEUX

GENMAB A/S

14-Apr-2025

2:38:25 PM

48

1274.50

XCSE

GENMAB A/S

14-Apr-2025

2:38:26 PM

48

1274.50

XCSE

GENMAB A/S

14-Apr-2025

2:38:26 PM

48

1274.50

XCSE

GENMAB A/S

14-Apr-2025

2:38:26 PM

14

1274.50

CEUX

GENMAB A/S

14-Apr-2025

2:38:27 PM

48

1274.50

XCSE

GENMAB A/S

14-Apr-2025

2:40:36 PM

85

1273.50

XCSE

GENMAB A/S

14-Apr-2025

2:40:36 PM

45

1274.00

XCSE

GENMAB A/S

14-Apr-2025

2:40:36 PM

54

1274.00

XCSE

GENMAB A/S

14-Apr-2025

2:40:36 PM

19

1273.50

TQEX

GENMAB A/S

14-Apr-2025

2:40:36 PM

9

1273.50

TQEX

GENMAB A/S

14-Apr-2025

2:40:36 PM

8

1273.50

TQEX

GENMAB A/S

14-Apr-2025

2:40:37 PM

48

1274.00

XCSE

GENMAB A/S

14-Apr-2025

2:40:37 PM

54

1274.00

XCSE

GENMAB A/S

14-Apr-2025

2:40:37 PM

10

1274.00

XCSE

GENMAB A/S

14-Apr-2025

2:40:37 PM

61

1273.50

XCSE

GENMAB A/S

14-Apr-2025

2:40:37 PM

22

1273.50

XCSE

GENMAB A/S

14-Apr-2025

2:40:41 PM

85

1273.00

CEUX

GENMAB A/S

14-Apr-2025

2:40:47 PM

1

1272.50

AQEU

GENMAB A/S

14-Apr-2025

2:42:03 PM

38

1273.00

XCSE

GENMAB A/S

14-Apr-2025

2:42:03 PM

54

1273.00

XCSE

GENMAB A/S

14-Apr-2025

2:42:03 PM

84

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:42:03 PM

5

1272.50

TQEX

GENMAB A/S

14-Apr-2025

2:42:03 PM

30

1272.50

TQEX

GENMAB A/S

14-Apr-2025

2:42:03 PM

14

1272.50

AQEU

GENMAB A/S

14-Apr-2025

2:42:10 PM

21

1272.50

AQEU

GENMAB A/S

14-Apr-2025

2:42:10 PM

2

1272.50

AQEU

GENMAB A/S

14-Apr-2025

2:42:20 PM

84

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:42:20 PM

36

1272.50

CEUX

GENMAB A/S

14-Apr-2025

2:42:20 PM

88

1272.00

CEUX

28

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:43:03 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:43:53 PM

82

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:43:53 PM

5

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:43:53 PM

25

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:43:53 PM

24

1271.00

AQEU

GENMAB A/S

14-Apr-2025

2:43:53 PM

36

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:43:54 PM

16

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:43:54 PM

6

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:43:58 PM

12

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:43:59 PM

11

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:43:59 PM

12

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:46:13 PM

12

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:46:13 PM

34

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:46:13 PM

47

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:46:13 PM

23

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:46:37 PM

51

1271.50

XCSE

GENMAB A/S

14-Apr-2025

2:46:37 PM

1

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:48:13 PM

40

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:13 PM

35

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:13 PM

19

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:13 PM

13

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:48:17 PM

12

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:17 PM

10

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:17 PM

40

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:17 PM

35

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:17 PM

41

1272.00

AQEU

GENMAB A/S

14-Apr-2025

2:48:18 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:48:18 PM

6

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:48:18 PM

48

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:48:18 PM

70

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:48:18 PM

13

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:48:30 PM

10

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:48:30 PM

40

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:48:30 PM

13

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:48:30 PM

47

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:30 PM

2

1272.50

XCSE

GENMAB A/S

14-Apr-2025

2:48:30 PM

17

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:48:30 PM

8

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:48:30 PM

62

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:49:30 PM

9

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:49:30 PM

40

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:49:30 PM

10

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:49:30 PM

13

1272.00

XCSE

29

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:49:30 PM

35

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:49:31 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:49:31 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:49:31 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:49:31 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:49:32 PM

11

1272.00

CEUX

GENMAB A/S

14-Apr-2025

2:51:23 PM

40

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:51:23 PM

13

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:51:23 PM

59

1272.00

XCSE

GENMAB A/S

14-Apr-2025

2:51:23 PM

89

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:51:23 PM

86

1271.50

CEUX

GENMAB A/S

14-Apr-2025

2:52:49 PM

85

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:51 PM

2

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:53:51 PM

29

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:53:51 PM

4

1271.00

TQEX

GENMAB A/S

14-Apr-2025

2:53:51 PM

14

1271.00

AQEU

GENMAB A/S

14-Apr-2025

2:53:55 PM

35

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:55 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:55 PM

40

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:55 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:55 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:55 PM

3

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:55 PM

18

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:53:55 PM

2

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:53:55 PM

62

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:53:56 PM

9

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:56 PM

41

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:56 PM

3

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:56 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:56 PM

38

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:53:56 PM

7

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:54:00 PM

46

1270.00

XCSE

GENMAB A/S

14-Apr-2025

2:54:00 PM

41

1270.00

XCSE

GENMAB A/S

14-Apr-2025

2:54:00 PM

28

1270.00

TQEX

GENMAB A/S

14-Apr-2025

2:54:01 PM

5

1270.00

TQEX

GENMAB A/S

14-Apr-2025

2:54:01 PM

25

1270.00

AQEU

GENMAB A/S

14-Apr-2025

2:54:02 PM

84

1269.50

CEUX

GENMAB A/S

14-Apr-2025

2:54:20 PM

25

1269.50

TQEX

GENMAB A/S

14-Apr-2025

2:55:56 PM

17

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:55:56 PM

13

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:55:56 PM

11

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:56:08 PM

12

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:56:09 PM

11

1270.50

XCSE

30

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

2:56:09 PM

13

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:56:20 PM

13

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:56:20 PM

11

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:56:21 PM

11

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:57:05 PM

21

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:57:09 PM

43

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:57:09 PM

18

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:57:34 PM

35

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:57:34 PM

39

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:57:34 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:57:34 PM

6

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:57:34 PM

6

1270.50

CEUX

GENMAB A/S

14-Apr-2025

2:58:20 PM

47

1270.50

XCSE

GENMAB A/S

14-Apr-2025

2:58:59 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

2:58:59 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

2:59:03 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:03 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:05 PM

22

1270.50

AQEU

GENMAB A/S

14-Apr-2025

2:59:10 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:10 PM

40

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:10 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:10 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:43 PM

24

1270.50

AQEU

GENMAB A/S

14-Apr-2025

2:59:50 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:50 PM

12

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:50 PM

40

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:50 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:50 PM

35

1271.00

XCSE

GENMAB A/S

14-Apr-2025

2:59:50 PM

2

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:00:07 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:00:07 PM

60

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:00:07 PM

28

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:00:08 PM

8

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:00:08 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:00:08 PM

15

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:01:08 PM

25

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:01:08 PM

58

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:01:08 PM

2

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:01:08 PM

8

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:01:08 PM

21

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:01:08 PM

18

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:01:08 PM

20

1269.50

CEUX

GENMAB A/S

14-Apr-2025

3:01:08 PM

36

1270.00

CEUX

31

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:02:18 PM

20

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:03:32 PM

16

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:03:32 PM

50

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:04:13 PM

35

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

19

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

40

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

18

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

84

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

47

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

40

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

25

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:04:13 PM

49

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:04:13 PM

25

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:04:13 PM

37

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:04:13 PM

33

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:04:13 PM

59

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:04:13 PM

23

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:04:13 PM

89

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:04:15 PM

12

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:04:37 PM

34

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:04:47 PM

5

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:05:19 PM

23

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:05:20 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:05:20 PM

11

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:05:20 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:05:20 PM

40

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:05:20 PM

11

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:05:20 PM

12

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:23 PM

31

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:07:24 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:24 PM

73

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:43 PM

40

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:43 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:43 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:43 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:07:43 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:08:28 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:09:09 PM

3

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:09:38 PM

29

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:10:10 PM

14

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:10 PM

40

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:10 PM

40

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:10 PM

13

1270.00

XCSE

32

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:10:11 PM

11

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:11 PM

12

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:11 PM

10

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:11 PM

10

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

11

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

10

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

13

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

11

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

40

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

10

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:24 PM

13

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:31 PM

12

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:31 PM

40

1270.50

XCSE

GENMAB A/S

14-Apr-2025

3:10:31 PM

84

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:10:38 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:10:53 PM

27

1270.00

AQEU

GENMAB A/S

14-Apr-2025

3:11:15 PM

41

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:11:15 PM

21

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:11:15 PM

13

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:11:40 PM

50

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

10

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

11

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

16

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

34

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

1

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:11:40 PM

50

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:12:40 PM

21

1270.50

AQEU

GENMAB A/S

14-Apr-2025

3:12:40 PM

36

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:12:45 PM

33

1270.50

TQEX

GENMAB A/S

14-Apr-2025

3:12:46 PM

10

1270.50

TQEX

GENMAB A/S

14-Apr-2025

3:14:31 PM

72

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:14:31 PM

2

1270.50

TQEX

GENMAB A/S

14-Apr-2025

3:14:40 PM

16

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:14:40 PM

19

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:14:40 PM

86

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:15:24 PM

112

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:15:24 PM

36

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:15:24 PM

9

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:15:30 PM

60

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:15:30 PM

27

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:15:33 PM

36

1270.00

AQEU

33

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:15:59 PM

85

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:19:19 PM

40

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:19:27 PM

28

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:19:28 PM

1

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:20:01 PM

42

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:20:17 PM

45

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:20:49 PM

32

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:49 PM

49

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:49 PM

21

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:49 PM

32

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:49 PM

71

1273.00

TQEX

GENMAB A/S

14-Apr-2025

3:20:49 PM

25

1273.00

AQEU

GENMAB A/S

14-Apr-2025

3:20:49 PM

84

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:20:49 PM

36

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:20:49 PM

30

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:20:53 PM

32

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:53 PM

22

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:53 PM

40

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:20:53 PM

44

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:20:53 PM

36

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:22:14 PM

10

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:14 PM

40

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:14 PM

13

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:14 PM

35

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:14 PM

14

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

13

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

40

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

11

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

35

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:15 PM

2

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:16 PM

11

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:16 PM

40

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:18 PM

40

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:18 PM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:18 PM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:18 PM

71

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:22:18 PM

13

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:22:18 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:18 PM

11

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:22 PM

12

1273.50

CEUX

34

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:22:33 PM

89

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:33 PM

43

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:22:33 PM

38

1273.50

AQEU

GENMAB A/S

14-Apr-2025

3:22:33 PM

76

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:33 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:33 PM

3

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:33 PM

10

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:45 PM

1

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:46 PM

1

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:22:50 PM

5

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:23:23 PM

10

1274.00

XCSE

GENMAB A/S

14-Apr-2025

3:23:23 PM

13

1274.00

XCSE

GENMAB A/S

14-Apr-2025

3:23:23 PM

11

1274.00

XCSE

GENMAB A/S

14-Apr-2025

3:23:24 PM

10

1274.00

XCSE

GENMAB A/S

14-Apr-2025

3:23:43 PM

78

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:23:43 PM

8

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:23:43 PM

50

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:23:43 PM

22

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:23:43 PM

8

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:23:43 PM

4

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:23:56 PM

30

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:23:56 PM

11

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:23:56 PM

9

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:23:56 PM

47

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:23:57 PM

43

1273.50

XCSE

GENMAB A/S

14-Apr-2025

3:23:57 PM

12

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:24:07 PM

34

1273.00

TQEX

GENMAB A/S

14-Apr-2025

3:24:07 PM

9

1273.00

TQEX

GENMAB A/S

14-Apr-2025

3:24:07 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:24:07 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

3:25:29 PM

75

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:25:29 PM

10

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:25:31 PM

17

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:25:31 PM

10

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:25:31 PM

11

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:25:31 PM

16

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:25:31 PM

10

1273.00

XCSE

GENMAB A/S

14-Apr-2025

3:26:09 PM

10

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:26:09 PM

8

1273.00

CEUX

GENMAB A/S

14-Apr-2025

3:26:33 PM

1

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:26:33 PM

83

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:27:19 PM

6

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:27:19 PM

61

1272.00

TQEX

35

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:27:21 PM

3

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:29 PM

1

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

2

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

2

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

2

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

2

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

2

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

2

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

3

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:27:50 PM

8

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:28:03 PM

1

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:28:03 PM

1

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:28:03 PM

63

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:28:03 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:33 PM

11

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:28:33 PM

76

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:33 PM

9

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:34 PM

26

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:28:35 PM

17

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:28:40 PM

14

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:28:40 PM

22

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:40 PM

40

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:40 PM

35

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:40 PM

15

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:40 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:40 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:40 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:40 PM

48

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

35

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

40

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

37

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

13

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

11

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

13

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

18

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:28:41 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

6

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

15

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

17

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

21

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

6

1272.00

CEUX

36

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:28:41 PM

6

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:41 PM

6

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:28:42 PM

6

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:29:02 PM

41

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:29:02 PM

12

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:29:10 PM

7

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:10 PM

48

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:10 PM

10

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:10 PM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:10 PM

10

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:11 PM

12

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:11 PM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:11 PM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:15 PM

6

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:15 PM

63

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:29:15 PM

19

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:00 PM

35

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:00 PM

12

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:00 PM

40

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:00 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:01 PM

4

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:01 PM

7

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:01 PM

2

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:01 PM

12

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:01 PM

36

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:01 PM

1

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:01 PM

49

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:10 PM

86

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:10 PM

22

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:10 PM

3

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:10 PM

5

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:10 PM

15

1272.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:10 PM

50

1272.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:10 PM

2

1272.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:10 PM

45

1272.00

AQEU

GENMAB A/S

14-Apr-2025

3:30:22 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:22 PM

6

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:22 PM

5

1272.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

3

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:23 PM

5

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

2

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

5

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

2

1271.00

TQEX

37

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:30:23 PM

5

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

2

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

3

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

1

1271.00

TQEX

GENMAB A/S

14-Apr-2025

3:30:23 PM

1

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

2

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

10

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

3

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

2

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

4

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

4

1271.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

4

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

3

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:23 PM

4

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:26 PM

8

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

7

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

3

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

7

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

22

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

8

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

11

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

12

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

1

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

21

1271.50

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

64

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

3

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

21

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:26 PM

3

1271.00

AQEU

GENMAB A/S

14-Apr-2025

3:30:26 PM

3

1271.00

AQEU

GENMAB A/S

14-Apr-2025

3:30:26 PM

20

1271.00

AQEU

GENMAB A/S

14-Apr-2025

3:30:26 PM

6

1271.00

AQEU

GENMAB A/S

14-Apr-2025

3:30:26 PM

24

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:26 PM

20

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:26 PM

33

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:26 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:26 PM

6

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:26 PM

42

1271.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:28 PM

13

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:29 PM

10

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:29 PM

13

1271.00

XCSE

38

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:30:30 PM

11

1271.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:36 PM

7

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

7

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

4

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

3

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

12

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

12

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

6

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:36 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:38 PM

3

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:38 PM

3

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:38 PM

2

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:38 PM

3

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:39 PM

86

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:39 PM

26

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:30:41 PM

40

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:30:41 PM

5

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:30:41 PM

2

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:30:41 PM

3

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:30:41 PM

2

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:30:41 PM

10

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:30:41 PM

2

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:30:41 PM

5

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:30:41 PM

4

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:30:41 PM

3

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:30:41 PM

1

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

88

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

22

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

19

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

40

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

11

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

2

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

9

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

9

1270.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

88

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:31:16 PM

32

1270.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:16 PM

1

1269.50

TQEX

39

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:31:16 PM

34

1270.00

AQEU

GENMAB A/S

14-Apr-2025

3:31:16 PM

37

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:31:16 PM

2

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

4

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

21

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

5

1270.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

71

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

11

1270.00

CEUX

GENMAB A/S

14-Apr-2025

3:31:16 PM

83

1269.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:24 PM

18

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

3

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

7

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

8

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

75

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:31:24 PM

19

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

6

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

4

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

2

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

2

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

2

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

6

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:31:24 PM

4

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:24 PM

20

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:24 PM

7

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:38 PM

9

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:31:38 PM

4

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:31:38 PM

2

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:31:38 PM

5

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:31:38 PM

8

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:31:38 PM

4

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:38 PM

35

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:38 PM

17

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:31:49 PM

85

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:31:49 PM

82

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:17 PM

55

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:21 PM

86

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:21 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:21 PM

9

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:21 PM

25

1269.00

TQEX

40

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:32:21 PM

30

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:25 PM

82

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

15

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

40

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

11

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

5

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

6

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

14

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

75

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:25 PM

33

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:32:25 PM

25

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:32:25 PM

6

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:25 PM

14

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:25 PM

68

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:25 PM

35

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:25 PM

51

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:32:33 PM

20

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

68

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

3

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

7

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

4

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

2

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

3

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

19

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

2

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

5

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

3

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

6

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

6

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

40

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:33 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:32:38 PM

7

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:38 PM

7

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:38 PM

11

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:38 PM

13

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:41 PM

9

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:41 PM

5

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:41 PM

3

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:41 PM

10

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:41 PM

2

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:41 PM

11

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:32:41 PM

47

1265.50

XCSE

41

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:32:41 PM

6

1265.50

AQEU

GENMAB A/S

14-Apr-2025

3:32:41 PM

25

1265.50

AQEU

GENMAB A/S

14-Apr-2025

3:32:41 PM

3

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:41 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:41 PM

12

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:41 PM

15

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:41 PM

15

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:32:49 PM

64

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:33:02 PM

25

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:33:11 PM

79

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:11 PM

9

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:11 PM

6

1265.00

TQEX

GENMAB A/S

14-Apr-2025

3:33:11 PM

4

1265.00

TQEX

GENMAB A/S

14-Apr-2025

3:33:39 PM

2

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:55 PM

83

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:55 PM

112

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:55 PM

50

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:55 PM

21

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:55 PM

40

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:33:55 PM

1

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:33:55 PM

28

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:33:55 PM

4

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

8

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

7

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

1

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

10

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

30

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:33:55 PM

48

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

2

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

2

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

5

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

79

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

11

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

5

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

3

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

2

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

5

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

2

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

13

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

40

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

23

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:34:06 PM

8

1264.50

XCSE

42

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:34:06 PM

15

1264.00

TQEX

GENMAB A/S

14-Apr-2025

3:34:06 PM

3

1264.00

TQEX

GENMAB A/S

14-Apr-2025

3:34:06 PM

2

1264.00

TQEX

GENMAB A/S

14-Apr-2025

3:34:06 PM

4

1264.00

TQEX

GENMAB A/S

14-Apr-2025

3:34:06 PM

4

1264.00

TQEX

GENMAB A/S

14-Apr-2025

3:34:06 PM

3

1263.50

AQEU

GENMAB A/S

14-Apr-2025

3:34:06 PM

20

1263.50

AQEU

GENMAB A/S

14-Apr-2025

3:34:06 PM

5

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

8

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

12

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

28

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

15

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

10

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:06 PM

4

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:34:12 PM

30

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:15 PM

23

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:15 PM

31

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:15 PM

5

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:15 PM

83

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:15 PM

25

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:34:15 PM

5

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

5

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

15

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

4

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

3

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

4

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

3

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

2

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

3

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

2

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

4

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:15 PM

10

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:16 PM

7

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:34:16 PM

15

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:34:16 PM

4

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:34:17 PM

85

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:17 PM

10

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:17 PM

10

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:17 PM

10

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:17 PM

10

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:17 PM

13

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:17 PM

25

1263.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:18 PM

4

1262.00

XCSE

43

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:34:18 PM

28

1262.00

XCSE

GENMAB A/S

14-Apr-2025

3:34:18 PM

3

1262.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:18 PM

4

1262.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:18 PM

2

1262.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:18 PM

5

1262.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:18 PM

25

1262.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:18 PM

16

1262.00

CEUX

GENMAB A/S

14-Apr-2025

3:34:19 PM

35

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:02 PM

4

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:02 PM

3

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:02 PM

2

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:02 PM

3

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:02 PM

9

1263.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:02 PM

3

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:02 PM

5

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:02 PM

11

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:02 PM

3

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:02 PM

13

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:02 PM

7

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:18 PM

2

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:18 PM

2

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:18 PM

2

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:18 PM

7

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:35:18 PM

19

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:35:19 PM

7

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:19 PM

3

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:19 PM

2

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:19 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:35:19 PM

4

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:19 PM

3

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:19 PM

3

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:19 PM

2

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:21 PM

28

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:21 PM

5

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:35:21 PM

5

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:35:21 PM

15

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:35:21 PM

3

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:21 PM

22

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:21 PM

52

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:35:25 PM

59

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:25 PM

15

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:25 PM

7

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:25 PM

5

1264.00

XCSE

44

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:35:25 PM

3

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:25 PM

6

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:25 PM

48

1264.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:50 PM

76

1263.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:50 PM

14

1262.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:50 PM

2

1262.50

TQEX

GENMAB A/S

14-Apr-2025

3:35:50 PM

43

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:51 PM

10

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:51 PM

2

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:51 PM

2

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:51 PM

28

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:51 PM

3

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:51 PM

2

1262.50

CEUX

GENMAB A/S

14-Apr-2025

3:35:58 PM

1

1262.00

XCSE

GENMAB A/S

14-Apr-2025

3:35:58 PM

1

1262.00

XCSE

GENMAB A/S

14-Apr-2025

3:36:07 PM

8

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:07 PM

12

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:07 PM

2

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:07 PM

13

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:07 PM

4

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:07 PM

5

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:13 PM

21

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:16 PM

17

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:17 PM

6

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:36:49 PM

5

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:36:50 PM

11

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:36:50 PM

12

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:36:50 PM

13

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:36:50 PM

13

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:36:50 PM

27

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:36:50 PM

25

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:36:50 PM

10

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:36:50 PM

19

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:37:04 PM

40

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

18

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

25

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

3

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

22

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

4

1265.00

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

1

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

3

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

2

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

3

1264.50

XCSE

45

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:37:04 PM

3

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

2

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:37:04 PM

25

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:37:04 PM

17

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:04 PM

2

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:04 PM

14

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:04 PM

4

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:04 PM

2

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:05 PM

6

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:06 PM

71

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:37:06 PM

40

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:06 PM

3

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:06 PM

3

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:06 PM

18

1263.50

CEUX

GENMAB A/S

14-Apr-2025

3:37:40 PM

5

1265.00

TQEX

GENMAB A/S

14-Apr-2025

3:37:40 PM

5

1265.00

TQEX

GENMAB A/S

14-Apr-2025

3:37:40 PM

5

1265.00

TQEX

GENMAB A/S

14-Apr-2025

3:37:40 PM

5

1265.00

TQEX

GENMAB A/S

14-Apr-2025

3:37:43 PM

2

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:37:50 PM

5

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:38:02 PM

84

1264.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:02 PM

5

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:38:02 PM

2

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:38:02 PM

13

1265.00

AQEU

GENMAB A/S

14-Apr-2025

3:38:29 PM

85

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:29 PM

7

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:29 PM

38

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:29 PM

15

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:29 PM

15

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:29 PM

12

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:56 PM

84

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:56 PM

19

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:56 PM

40

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:56 PM

5

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:56 PM

9

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:56 PM

39

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:38:56 PM

34

1265.50

TQEX

GENMAB A/S

14-Apr-2025

3:38:56 PM

4

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:56 PM

15

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:56 PM

5

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:38:56 PM

20

1264.50

CEUX

GENMAB A/S

14-Apr-2025

3:39:39 PM

32

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:39:41 PM

35

1266.50

XCSE

46

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:39:41 PM

49

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:41 PM

19

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:41 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:41 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:41 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:41 PM

4

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:39:41 PM

4

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:39:41 PM

32

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:39:50 PM

35

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

18

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

40

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

8

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

5

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

6

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:50 PM

40

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:39:56 PM

1

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:39:59 PM

21

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:39:59 PM

32

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:40:09 PM

5

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:40:09 PM

40

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:40:09 PM

36

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:40:09 PM

24

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:40:09 PM

1

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:40:12 PM

34

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:40:13 PM

83

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:40:13 PM

2

1265.50

TQEX

GENMAB A/S

14-Apr-2025

3:40:13 PM

32

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:40:13 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

14

1265.50

TQEX

GENMAB A/S

14-Apr-2025

3:40:14 PM

15

1265.50

TQEX

GENMAB A/S

14-Apr-2025

3:40:14 PM

10

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

11

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

2

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

3

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

9

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

15

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:14 PM

33

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:40:32 PM

84

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:40:32 PM

1

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:40:59 PM

4

1267.00

XCSE

47

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:40:59 PM

27

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:40:59 PM

32

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:41:03 PM

35

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:03 PM

8

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:03 PM

13

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:03 PM

24

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:19 PM

83

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:41:33 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:33 PM

14

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:33 PM

77

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:41:40 PM

8

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:41:45 PM

6

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:41:45 PM

10

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:41:45 PM

5

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:41:45 PM

5

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:42:06 PM

3

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

1

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

5

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

3

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

3

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

4

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

4

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

10

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

22

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

35

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

5

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

5

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

1

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:06 PM

3

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

3

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

3

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

10

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

32

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

15

1266.50

CEUX

48

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:42:06 PM

40

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:06 PM

2

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:07 PM

63

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:11 PM

11

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:18 PM

87

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:18 PM

11

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:18 PM

61

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:18 PM

1

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

84

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:42:37 PM

5

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:42:37 PM

2

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:42:37 PM

3

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:42:37 PM

2

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:42:37 PM

8

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:42:37 PM

4

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:42:37 PM

27

1267.00

AQEU

GENMAB A/S

14-Apr-2025

3:42:37 PM

7

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

2

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

12

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

13

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

7

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

3

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:42:37 PM

11

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:16 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:43:16 PM

13

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:43:16 PM

24

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:43:16 PM

74

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:16 PM

9

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:16 PM

28

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:16 PM

15

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:16 PM

41

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:32 PM

36

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:32 PM

26

1267.00

AQEU

GENMAB A/S

14-Apr-2025

3:43:40 PM

47

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:40 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:40 PM

23

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:40 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:40 PM

2

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:43:50 PM

55

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:43:50 PM

30

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:43:50 PM

15

1266.00

TQEX

GENMAB A/S

14-Apr-2025

3:43:50 PM

12

1266.00

TQEX

GENMAB A/S

14-Apr-2025

3:43:50 PM

4

1266.00

AQEU

49

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:43:50 PM

9

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:43:50 PM

10

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:43:50 PM

15

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:50 PM

14

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:56 PM

85

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:43:56 PM

6

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:43:56 PM

76

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:44:08 PM

83

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:44:38 PM

27

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:44:55 PM

20

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:44:55 PM

39

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:44:56 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:44:56 PM

8

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:44:56 PM

12

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:44:56 PM

12

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:44:56 PM

40

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:44:59 PM

83

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:45:44 PM

48

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:44 PM

37

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:44 PM

2

1267.00

AQEU

GENMAB A/S

14-Apr-2025

3:45:44 PM

25

1267.00

AQEU

GENMAB A/S

14-Apr-2025

3:45:44 PM

69

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:45:44 PM

13

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:45:45 PM

4

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:45:47 PM

25

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:48 PM

7

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:48 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:48 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:48 PM

4

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:45:51 PM

2

1266.00

TQEX

GENMAB A/S

14-Apr-2025

3:45:51 PM

23

1266.00

TQEX

GENMAB A/S

14-Apr-2025

3:45:51 PM

14

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:46:26 PM

8

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:46:33 PM

66

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:46:34 PM

23

1266.50

CEUX

GENMAB A/S

14-Apr-2025

3:46:37 PM

1

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:46:37 PM

1

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:46:37 PM

81

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:46:37 PM

23

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:46:37 PM

2

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:47:05 PM

50

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:05 PM

20

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:05 PM

33

1266.00

AQEU

50

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:47:05 PM

36

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:47:05 PM

82

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:47:21 PM

35

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

21

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

40

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

13

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

3

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

49

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

3

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

40

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

11

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:21 PM

9

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:22 PM

23

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:22 PM

13

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:22 PM

12

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:22 PM

12

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:22 PM

40

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:47:23 PM

87

1265.50

XCSE

GENMAB A/S

14-Apr-2025

3:47:23 PM

25

1265.50

TQEX

GENMAB A/S

14-Apr-2025

3:47:23 PM

4

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:47:23 PM

4

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:47:23 PM

3

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:47:23 PM

2

1264.50

TQEX

GENMAB A/S

14-Apr-2025

3:47:23 PM

32

1265.50

CEUX

GENMAB A/S

14-Apr-2025

3:47:23 PM

59

1265.00

CEUX

GENMAB A/S

14-Apr-2025

3:48:07 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:16 PM

16

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:16 PM

26

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:18 PM

7

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:49 PM

36

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:49 PM

2

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:49 PM

48

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

89

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:58 PM

4

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

20

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:48:58 PM

33

1267.00

AQEU

GENMAB A/S

14-Apr-2025

3:48:58 PM

32

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.50

CEUX

51

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:48:58 PM

4

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

3

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

21

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

5

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

5

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

6

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

3

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

4

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

5

1267.50

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

3

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:48:58 PM

50

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:48:59 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

21

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

4

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

8

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

7

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

21

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

10

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:48:59 PM

14

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:49:03 PM

86

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:49:08 PM

87

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:49:56 PM

44

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:49:56 PM

42

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:07 PM

82

1269.50

CEUX

GENMAB A/S

14-Apr-2025

3:50:29 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:29 PM

25

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:29 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:29 PM

34

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:29 PM

5

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:50:29 PM

5

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:50:29 PM

5

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:50:29 PM

11

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:50:29 PM

11

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:50:29 PM

2

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:50:29 PM

18

1269.50

AQEU

GENMAB A/S

14-Apr-2025

3:50:35 PM

8

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:35 PM

11

1269.00

XCSE

52

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:50:35 PM

1

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:50:36 PM

7

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:36 PM

3

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:43 PM

20

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:43 PM

40

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:43 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:43 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:43 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:43 PM

84

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:50:44 PM

40

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:50:44 PM

15

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:50:44 PM

25

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:50:48 PM

31

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:50:49 PM

86

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:49 PM

3

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:50:49 PM

33

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:51:07 PM

67

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:51:28 PM

20

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:51:28 PM

11

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:51:28 PM

4

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:51:28 PM

2

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:51:28 PM

4

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:51:28 PM

4

1268.00

TQEX

GENMAB A/S

14-Apr-2025

3:51:28 PM

37

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:51:28 PM

36

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:51:28 PM

5

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:28 PM

34

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:28 PM

6

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:28 PM

30

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:28 PM

8

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:28 PM

1

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:52 PM

11

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:51:52 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:51:52 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:51:52 PM

40

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:51:54 PM

7

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:51:56 PM

10

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:56 PM

10

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:51:56 PM

65

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:52:00 PM

10

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

13

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

1

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

12

1267.50

XCSE

53

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:52:00 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

1

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

87

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:00 PM

1

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:17 PM

5

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:52:17 PM

5

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:52:17 PM

25

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:52:17 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:52:17 PM

8

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:52:39 PM

84

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:40 PM

3

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:52:40 PM

2

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:52:40 PM

7

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:52:40 PM

13

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:52:40 PM

4

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:52:40 PM

2

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:52:40 PM

86

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:52:43 PM

85

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:43 PM

6

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:43 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:43 PM

5

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:43 PM

4

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:52:43 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:52:43 PM

20

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:52:43 PM

10

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:53:13 PM

32

1267.50

TQEX

GENMAB A/S

14-Apr-2025

3:53:41 PM

3

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:53:49 PM

84

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

40

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

13

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

17

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

7

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

3

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

5

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:02 PM

15

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:54:13 PM

25

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:54:13 PM

82

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:54:13 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:54:14 PM

5

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:54:14 PM

22

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:54:14 PM

32

1268.50

CEUX

54

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:54:20 PM

49

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:20 PM

63

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:21 PM

23

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:21 PM

20

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:22 PM

10

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:22 PM

5

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:22 PM

40

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:22 PM

11

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:22 PM

10

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

7

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

2

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

3

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

4

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

4

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

60

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:36 PM

4

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:54:38 PM

4

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:54:38 PM

8

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:54:38 PM

21

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:54:38 PM

7

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:54:38 PM

5

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:54:40 PM

44

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:54:58 PM

53

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:58 PM

36

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:54:58 PM

8

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:54:58 PM

21

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:55:00 PM

1

1268.50

AQEU

GENMAB A/S

14-Apr-2025

3:55:00 PM

6

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:55:00 PM

8

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:55:00 PM

21

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:55:00 PM

1

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:55:10 PM

26

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:55:10 PM

74

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:55:11 PM

10

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:55:11 PM

60

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:55:11 PM

10

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:55:11 PM

7

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:55:36 PM

11

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:55:36 PM

12

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:55:36 PM

11

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:55:36 PM

32

1268.00

XCSE

GENMAB A/S

14-Apr-2025

3:55:39 PM

32

1268.00

CEUX

GENMAB A/S

14-Apr-2025

3:55:42 PM

3

1267.50

AQEU

55

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:56:09 PM

7

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

1

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

20

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

53

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

7

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

13

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:09 PM

17

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:56:09 PM

13

1267.00

TQEX

GENMAB A/S

14-Apr-2025

3:56:09 PM

25

1267.50

AQEU

GENMAB A/S

14-Apr-2025

3:56:09 PM

3

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:09 PM

10

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:09 PM

15

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:09 PM

9

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:09 PM

4

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:10 PM

89

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:31 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

21

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

10

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

83

1267.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

18

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:56:31 PM

8

1267.50

TQEX

GENMAB A/S

14-Apr-2025

3:56:31 PM

20

1267.50

TQEX

GENMAB A/S

14-Apr-2025

3:56:37 PM

13

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:37 PM

21

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:37 PM

1

1267.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:40 PM

20

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:40 PM

10

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:40 PM

10

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:40 PM

10

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:41 PM

85

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:56:41 PM

37

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:53 PM

25

1266.50

TQEX

GENMAB A/S

14-Apr-2025

3:56:53 PM

1

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:53 PM

14

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:56:53 PM

11

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:57:09 PM

89

1266.00

XCSE

GENMAB A/S

14-Apr-2025

3:57:09 PM

8

1266.00

AQEU

56

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:57:09 PM

5

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:57:09 PM

12

1266.00

AQEU

GENMAB A/S

14-Apr-2025

3:57:09 PM

14

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:57:09 PM

39

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:57:09 PM

3

1266.00

CEUX

GENMAB A/S

14-Apr-2025

3:57:27 PM

16

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:27 PM

20

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:27 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:27 PM

28

1266.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:50 PM

2

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:50 PM

6

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:50 PM

25

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:57:50 PM

2

1267.50

XCSE

GENMAB A/S

14-Apr-2025

3:58:03 PM

4

1268.00

AQEU

GENMAB A/S

14-Apr-2025

3:58:03 PM

10

1268.00

AQEU

GENMAB A/S

14-Apr-2025

3:58:11 PM

45

1268.50

XCSE

GENMAB A/S

14-Apr-2025

3:58:11 PM

34

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:58:44 PM

27

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:58:44 PM

36

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:58:49 PM

2

1269.50

CEUX

GENMAB A/S

14-Apr-2025

3:58:57 PM

84

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:58:57 PM

83

1269.50

CEUX

GENMAB A/S

14-Apr-2025

3:59:09 PM

2

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:09 PM

3

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:09 PM

32

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:59:12 PM

40

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:12 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:12 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:12 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:12 PM

5

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:12 PM

5

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:12 PM

50

1268.50

CEUX

GENMAB A/S

14-Apr-2025

3:59:13 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

40

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

40

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:13 PM

29

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:20 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:20 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:20 PM

40

1269.00

XCSE

57

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

3:59:20 PM

4

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:30 PM

40

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:30 PM

5

1269.00

XCSE

GENMAB A/S

14-Apr-2025

3:59:43 PM

7

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:59:47 PM

14

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:47 PM

5

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:47 PM

8

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:59 PM

64

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:59:59 PM

20

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:59:59 PM

3

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:59:59 PM

13

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:59:59 PM

9

1269.50

XCSE

GENMAB A/S

14-Apr-2025

3:59:59 PM

2

1269.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:59 PM

3

1268.50

TQEX

GENMAB A/S

14-Apr-2025

3:59:59 PM

2

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:59:59 PM

9

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:59:59 PM

4

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:59:59 PM

4

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:59:59 PM

2

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:59:59 PM

4

1269.00

AQEU

GENMAB A/S

14-Apr-2025

3:59:59 PM

11

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:59:59 PM

31

1269.00

CEUX

GENMAB A/S

14-Apr-2025

3:59:59 PM

43

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:08 PM

32

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:00:08 PM

82

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:10 PM

26

1270.00

AQEU

GENMAB A/S

14-Apr-2025

4:00:22 PM

66

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:23 PM

82

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:23 PM

9

1269.50

TQEX

GENMAB A/S

14-Apr-2025

4:00:23 PM

10

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:23 PM

9

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:28 PM

31

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:28 PM

50

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:28 PM

2

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:28 PM

2

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:28 PM

2

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:43 PM

89

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:46 PM

36

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:00:46 PM

45

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

4

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

40

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

3

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

13

1267.50

XCSE

58

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:00:59 PM

7

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

3

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

7

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

5

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

3

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

13

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:00:59 PM

9

1268.50

TQEX

GENMAB A/S

14-Apr-2025

4:00:59 PM

1

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:59 PM

50

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:00:59 PM

36

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:01:08 PM

84

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:09 PM

22

1267.00

TQEX

GENMAB A/S

14-Apr-2025

4:01:11 PM

2

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:01:11 PM

11

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:01:11 PM

5

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:01:11 PM

49

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:01:37 PM

25

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:01:37 PM

13

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:01:37 PM

13

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:01:37 PM

11

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:01:37 PM

8

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:01:37 PM

4

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:01:37 PM

16

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:01:37 PM

7

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:01:37 PM

13

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:01:48 PM

1

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:48 PM

85

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:48 PM

8

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:48 PM

5

1267.50

TQEX

GENMAB A/S

14-Apr-2025

4:01:48 PM

15

1267.50

TQEX

GENMAB A/S

14-Apr-2025

4:01:48 PM

10

1267.50

TQEX

GENMAB A/S

14-Apr-2025

4:01:48 PM

4

1267.50

TQEX

GENMAB A/S

14-Apr-2025

4:01:48 PM

45

1268.00

AQEU

GENMAB A/S

14-Apr-2025

4:01:48 PM

33

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:01:58 PM

13

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:58 PM

52

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:59 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:01:59 PM

3

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:02:31 PM

80

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:02:32 PM

8

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:02:49 PM

4

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:02:51 PM

35

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:02:51 PM

83

1268.00

CEUX

59

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:03:05 PM

1

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

87

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

84

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

89

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

85

1263.50

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

82

1262.50

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

83

1261.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:05 PM

16

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:03:05 PM

88

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:03:05 PM

84

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:03:05 PM

26

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:03:05 PM

26

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:03:05 PM

48

1263.50

CEUX

GENMAB A/S

14-Apr-2025

4:03:06 PM

20

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:03:06 PM

10

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:03:06 PM

5

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:03:09 PM

46

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:03:20 PM

4

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:20 PM

4

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:20 PM

18

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:29 PM

2

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:29 PM

2

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:03:49 PM

26

1266.00

TQEX

GENMAB A/S

14-Apr-2025

4:04:32 PM

2

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

65

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:05:07 PM

22

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:05:07 PM

40

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:05:07 PM

4

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:05:07 PM

8

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:05:07 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:05:07 PM

2

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

3

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

2

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

5

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

2

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

8

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

2

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:05:07 PM

25

1265.00

AQEU

GENMAB A/S

14-Apr-2025

4:05:07 PM

37

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:05:09 PM

22

1265.50

TQEX

GENMAB A/S

14-Apr-2025

4:05:39 PM

85

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:07:14 PM

100

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:07:14 PM

36

1268.50

CEUX

60

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:07:15 PM

67

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:07:33 PM

17

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:07:33 PM

10

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:07:33 PM

27

1268.00

XCSE

GENMAB A/S

14-Apr-2025

4:07:33 PM

31

1268.00

AQEU

GENMAB A/S

14-Apr-2025

4:07:33 PM

54

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:07:33 PM

35

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:07:33 PM

20

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:07:59 PM

82

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

13

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:03 PM

40

1267.00

TQEX

GENMAB A/S

14-Apr-2025

4:08:03 PM

3

1267.00

TQEX

GENMAB A/S

14-Apr-2025

4:08:03 PM

5

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:08:03 PM

84

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:08:04 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

21

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

17

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

59

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:04 PM

112

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:18 PM

36

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:08:18 PM

88

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:18 PM

1

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:08:18 PM

20

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:08:18 PM

36

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:09:09 PM

83

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:09:13 PM

25

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:09:13 PM

60

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:09:24 PM

5

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:09:24 PM

6

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:09:24 PM

5

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:09:24 PM

61

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:09:24 PM

19

1267.00

CEUX

61

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:09:26 PM

40

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:09:26 PM

13

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:09:26 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:09:26 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:19 PM

23

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:10:19 PM

86

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:10:19 PM

36

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:10:20 PM

40

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:20 PM

13

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:20 PM

26

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:10:20 PM

4

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:10:21 PM

49

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:23 PM

100

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:33 PM

86

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:33 PM

5

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:10:33 PM

28

1266.00

AQEU

GENMAB A/S

14-Apr-2025

4:10:33 PM

28

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:10:38 PM

88

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:11:19 PM

36

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:11:19 PM

36

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:11:19 PM

79

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:11:19 PM

9

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:11:48 PM

100

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:11:48 PM

6

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:11:49 PM

100

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:11:56 PM

78

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:16 PM

31

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:16 PM

23

1266.00

TQEX

GENMAB A/S

14-Apr-2025

4:12:16 PM

3

1266.00

TQEX

GENMAB A/S

14-Apr-2025

4:12:16 PM

20

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:12:22 PM

51

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:23 PM

6

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:12:23 PM

6

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:12:23 PM

6

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:12:47 PM

89

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

35

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

40

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

25

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

11

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

1

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

12

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

11

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

40

1266.00

XCSE

62

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:12:47 PM

11

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:12:47 PM

27

1266.00

TQEX

GENMAB A/S

14-Apr-2025

4:12:47 PM

22

1266.00

TQEX

GENMAB A/S

14-Apr-2025

4:12:47 PM

27

1266.00

AQEU

GENMAB A/S

14-Apr-2025

4:12:47 PM

36

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:12:47 PM

45

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:12:50 PM

39

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:12:56 PM

4

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:12:56 PM

82

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:13:11 PM

36

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:13:12 PM

13

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:13:17 PM

32

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:13:25 PM

48

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:13:25 PM

64

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:13:37 PM

2

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:13:37 PM

23

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:14:12 PM

23

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:14:12 PM

64

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:14:12 PM

40

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:14:12 PM

5

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:14:12 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:14:12 PM

39

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:14:12 PM

88

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:14:14 PM

68

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:14:29 PM

82

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:14:29 PM

24

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:14:29 PM

8

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:14:29 PM

25

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:14:29 PM

32

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:14:54 PM

56

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:14:56 PM

4

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:14:56 PM

23

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:14:56 PM

10

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:14:56 PM

70

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:14:56 PM

5

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:15:04 PM

65

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:15:04 PM

23

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:15:17 PM

30

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:15:18 PM

58

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:15:18 PM

62

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:15:32 PM

31

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:15:32 PM

57

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:15:32 PM

29

1265.50

XCSE

63

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:15:32 PM

25

1266.00

AQEU

GENMAB A/S

14-Apr-2025

4:15:44 PM

10

1265.00

AQEU

GENMAB A/S

14-Apr-2025

4:15:44 PM

89

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:15:49 PM

58

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:15:51 PM

6

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:16:03 PM

31

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:16:03 PM

51

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:16:03 PM

43

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:16:12 PM

4

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:16:22 PM

21

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:16:22 PM

6

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:16:23 PM

30

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:16:29 PM

40

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:16:29 PM

12

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:16:29 PM

10

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:16:29 PM

20

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:16:29 PM

11

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:16:29 PM

28

1265.00

AQEU

GENMAB A/S

14-Apr-2025

4:16:34 PM

89

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:16:34 PM

8

1264.00

TQEX

GENMAB A/S

14-Apr-2025

4:16:34 PM

25

1264.00

TQEX

GENMAB A/S

14-Apr-2025

4:16:34 PM

17

1264.00

AQEU

GENMAB A/S

14-Apr-2025

4:16:34 PM

88

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:16:51 PM

84

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:17:14 PM

29

1264.00

AQEU

GENMAB A/S

14-Apr-2025

4:17:14 PM

39

1263.50

CEUX

GENMAB A/S

14-Apr-2025

4:17:20 PM

12

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:17:20 PM

12

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:17:20 PM

13

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:17:20 PM

20

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:17:20 PM

30

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:17:23 PM

83

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:17:23 PM

2

1263.50

CEUX

GENMAB A/S

14-Apr-2025

4:17:23 PM

3

1263.50

CEUX

GENMAB A/S

14-Apr-2025

4:18:04 PM

43

1263.50

CEUX

GENMAB A/S

14-Apr-2025

4:18:14 PM

89

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:18:27 PM

40

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:18:27 PM

25

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:18:54 PM

35

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:18:54 PM

23

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:18:54 PM

40

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:18:54 PM

12

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:18:54 PM

26

1264.00

TQEX

64

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:18:54 PM

20

1264.00

TQEX

GENMAB A/S

14-Apr-2025

4:18:54 PM

33

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:18:59 PM

20

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:18:59 PM

5

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:18:59 PM

9

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:18:59 PM

3

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:18:59 PM

24

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:19:00 PM

41

1263.50

XCSE

GENMAB A/S

14-Apr-2025

4:19:24 PM

83

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:19:44 PM

87

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:20:08 PM

32

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:20:27 PM

12

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:20:53 PM

86

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:20:53 PM

52

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:20:53 PM

34

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:21:06 PM

29

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:21:10 PM

7

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:10 PM

33

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:10 PM

11

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:10 PM

13

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:10 PM

10

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:10 PM

13

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:10 PM

32

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:21:14 PM

35

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:14 PM

28

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:14 PM

40

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:14 PM

9

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:14 PM

39

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:21:14 PM

50

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:21:14 PM

34

1264.00

TQEX

GENMAB A/S

14-Apr-2025

4:21:14 PM

5

1264.00

TQEX

GENMAB A/S

14-Apr-2025

4:21:14 PM

87

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:21:34 PM

63

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:21:42 PM

85

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:47 PM

83

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:21:54 PM

86

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:22:04 PM

55

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:22:35 PM

25

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:22:43 PM

31

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:22:43 PM

32

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:22:50 PM

14

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:22:50 PM

12

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:22:50 PM

10

1264.50

XCSE

65

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:22:50 PM

40

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:22:50 PM

25

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:22:50 PM

25

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:22:50 PM

43

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:22:51 PM

37

1263.50

TQEX

GENMAB A/S

14-Apr-2025

4:23:24 PM

48

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:23:24 PM

40

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:23:24 PM

18

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:23:24 PM

1

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:23:24 PM

27

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:23:34 PM

64

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:23:34 PM

66

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:23:34 PM

21

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:23:44 PM

22

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:23:59 PM

59

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:24:02 PM

2

1263.50

AQEU

GENMAB A/S

14-Apr-2025

4:24:03 PM

2

1263.50

AQEU

GENMAB A/S

14-Apr-2025

4:24:03 PM

2

1263.50

AQEU

GENMAB A/S

14-Apr-2025

4:24:04 PM

26

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:24:04 PM

19

1263.50

AQEU

GENMAB A/S

14-Apr-2025

4:24:04 PM

30

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:24:04 PM

54

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:24:34 PM

89

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:24:34 PM

39

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:24:34 PM

45

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:25:04 PM

72

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:25:04 PM

38

1263.50

AQEU

GENMAB A/S

14-Apr-2025

4:25:24 PM

89

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:25:27 PM

15

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:25:39 PM

17

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:25:54 PM

71

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:26:31 PM

60

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:26:31 PM

27

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:26:38 PM

86

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:26:38 PM

2

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:26:54 PM

86

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:26:54 PM

25

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:26:56 PM

1

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:27:08 PM

13

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:08 PM

40

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:08 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:08 PM

13

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:08 PM

13

1267.00

XCSE

66

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:27:08 PM

85

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:27:08 PM

36

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:08 PM

5

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:08 PM

5

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:08 PM

6

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:08 PM

3

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:08 PM

20

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:09 PM

49

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:19 PM

32

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:24 PM

82

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:25 PM

38

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:27:25 PM

32

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:27:37 PM

90

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:39 PM

30

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:27:39 PM

25

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:27:54 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:54 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:27:54 PM

2

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:28:24 PM

25

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:28:27 PM

49

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:28:27 PM

14

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:28:34 PM

12

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:28:48 PM

82

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:28:49 PM

36

1267.50

CEUX

GENMAB A/S

14-Apr-2025

4:28:53 PM

100

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:28:53 PM

12

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:28:53 PM

32

1267.50

CEUX

GENMAB A/S

14-Apr-2025

4:29:07 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:29:07 PM

39

1267.50

TQEX

GENMAB A/S

14-Apr-2025

4:29:07 PM

25

1267.50

AQEU

GENMAB A/S

14-Apr-2025

4:29:09 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:29:09 PM

11

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:29:09 PM

40

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:29:09 PM

85

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:29:09 PM

32

1267.50

CEUX

GENMAB A/S

14-Apr-2025

4:29:09 PM

48

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:29:09 PM

37

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:29:34 PM

85

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:29:54 PM

74

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:30:05 PM

36

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:30:24 PM

85

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:30:27 PM

19

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:30:28 PM

12

1266.50

CEUX

67

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:30:30 PM

3

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:30:35 PM

70

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:30:42 PM

61

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:30:43 PM

16

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:30:43 PM

86

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:30:43 PM

9

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:30:43 PM

23

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:30:43 PM

27

1266.00

AQEU

GENMAB A/S

14-Apr-2025

4:30:43 PM

87

1266.00

CEUX

GENMAB A/S

14-Apr-2025

4:30:43 PM

84

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:30:50 PM

34

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:30:50 PM

23

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:30:50 PM

11

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:31:04 PM

18

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:31:04 PM

31

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:31:04 PM

9

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:31:14 PM

13

1264.00

XCSE

GENMAB A/S

14-Apr-2025

4:31:47 PM

63

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:32:13 PM

35

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:32:13 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:32:13 PM

30

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:32:13 PM

81

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:32:21 PM

47

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:32:21 PM

2

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:32:21 PM

6

1265.00

XCSE

GENMAB A/S

14-Apr-2025

4:32:27 PM

36

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:32:27 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:32:27 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:32:27 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:32:34 PM

25

1264.50

TQEX

GENMAB A/S

14-Apr-2025

4:32:34 PM

63

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:32:35 PM

3

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:32:46 PM

71

1263.50

XCSE

GENMAB A/S

14-Apr-2025

4:32:51 PM

3

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:33:04 PM

20

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:33:05 PM

13

1264.50

AQEU

GENMAB A/S

14-Apr-2025

4:33:08 PM

15

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:33:12 PM

50

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:41 PM

10

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:41 PM

25

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:41 PM

51

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:41 PM

10

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:41 PM

6

1264.50

XCSE

68

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:33:41 PM

10

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:41 PM

36

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

5

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

5

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

6

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

3

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

20

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

5

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:41 PM

18

1264.50

CEUX

GENMAB A/S

14-Apr-2025

4:33:50 PM

69

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:50 PM

8

1264.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:50 PM

81

1263.50

XCSE

GENMAB A/S

14-Apr-2025

4:33:53 PM

9

1264.00

AQEU

GENMAB A/S

14-Apr-2025

4:33:53 PM

33

1264.00

AQEU

GENMAB A/S

14-Apr-2025

4:33:58 PM

32

1264.00

CEUX

GENMAB A/S

14-Apr-2025

4:34:02 PM

1

1263.50

XCSE

GENMAB A/S

14-Apr-2025

4:34:02 PM

34

1263.50

TQEX

GENMAB A/S

14-Apr-2025

4:34:02 PM

39

1263.50

CEUX

GENMAB A/S

14-Apr-2025

4:34:26 PM

27

1262.50

XCSE

GENMAB A/S

14-Apr-2025

4:34:26 PM

5

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:34:26 PM

6

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:34:26 PM

6

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:34:26 PM

8

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:34:30 PM

35

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:34:30 PM

10

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:34:30 PM

36

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:34:40 PM

32

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:34:40 PM

28

1262.50

CEUX

GENMAB A/S

14-Apr-2025

4:34:40 PM

8

1262.50

CEUX

GENMAB A/S

14-Apr-2025

4:34:52 PM

66

1262.50

XCSE

GENMAB A/S

14-Apr-2025

4:35:05 PM

31

1263.00

XCSE

GENMAB A/S

14-Apr-2025

4:35:07 PM

14

1263.00

CEUX

GENMAB A/S

14-Apr-2025

4:35:52 PM

11

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:35:52 PM

51

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:35:52 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:35:52 PM

12

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:35:52 PM

25

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:35:54 PM

18

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:35:59 PM

36

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:00 PM

36

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:01 PM

35

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:01 PM

29

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:01 PM

35

1265.50

XCSE

69

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:36:01 PM

12

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:01 PM

13

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:24 PM

88

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:24 PM

87

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:40 PM

28

1265.50

AQEU

GENMAB A/S

14-Apr-2025

4:36:44 PM

5

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:44 PM

36

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:44 PM

21

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:36:50 PM

10

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:50 PM

11

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:50 PM

51

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:50 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:50 PM

12

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:36:50 PM

10

1265.00

TQEX

GENMAB A/S

14-Apr-2025

4:36:50 PM

20

1265.00

CEUX

GENMAB A/S

14-Apr-2025

4:37:04 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:04 PM

51

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:04 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:04 PM

15

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:04 PM

32

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:37:05 PM

35

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:05 PM

31

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:05 PM

31

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:34 PM

82

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:35 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:35 PM

13

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:35 PM

11

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:35 PM

15

1265.50

XCSE

GENMAB A/S

14-Apr-2025

4:37:35 PM

40

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:37:37 PM

42

1265.50

CEUX

GENMAB A/S

14-Apr-2025

4:38:03 PM

4

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:38:04 PM

28

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:04 PM

82

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:38:28 PM

30

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:38:40 PM

83

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:40 PM

4

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

2

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

2

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

2

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

3

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

3

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

5

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

5

1266.50

TQEX

70

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:38:40 PM

5

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

5

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:38:40 PM

36

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:38:40 PM

3

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:38:40 PM

4

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:38:40 PM

37

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:38:41 PM

47

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:46 PM

33

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:46 PM

51

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:47 PM

47

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:47 PM

36

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:38:47 PM

6

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:38:52 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:52 PM

32

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:52 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:52 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:52 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:38:52 PM

14

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:00 PM

18

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:00 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:00 PM

11

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:00 PM

12

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:00 PM

35

1267.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:00 PM

55

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:39:08 PM

37

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:39:08 PM

55

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:39:14 PM

88

1266.00

XCSE

GENMAB A/S

14-Apr-2025

4:39:31 PM

25

1267.00

AQEU

GENMAB A/S

14-Apr-2025

4:39:40 PM

49

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:39:40 PM

35

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:39:40 PM

5

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:39:40 PM

61

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:39:40 PM

25

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:39:47 PM

13

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:05 PM

37

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:13 PM

82

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:15 PM

4

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:15 PM

38

1266.50

TQEX

GENMAB A/S

14-Apr-2025

4:40:15 PM

48

1266.50

AQEU

GENMAB A/S

14-Apr-2025

4:40:30 PM

32

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:30 PM

10

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:30 PM

11

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:30 PM

12

1266.50

XCSE

71

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:40:30 PM

47

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:31 PM

6

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:31 PM

5

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:31 PM

6

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:31 PM

11

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:41 PM

36

1266.50

CEUX

GENMAB A/S

14-Apr-2025

4:40:54 PM

78

1266.50

XCSE

GENMAB A/S

14-Apr-2025

4:40:54 PM

32

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:40:54 PM

33

1267.00

CEUX

GENMAB A/S

14-Apr-2025

4:41:31 PM

70

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:31 PM

13

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:31 PM

86

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:31 PM

85

1267.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:31 PM

86

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:41:38 PM

5

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:41:56 PM

11

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:56 PM

13

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:56 PM

51

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:41:58 PM

13

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:14 PM

11

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:14 PM

12

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

26

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

36

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

5

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

5

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

6

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

5

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:42:15 PM

14

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:42:16 PM

6

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:16 PM

5

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:17 PM

4

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:17 PM

6

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:19 PM

39

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:42:20 PM

48

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:25 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:25 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:25 PM

51

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:25 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:29 PM

31

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:29 PM

39

1268.50

AQEU

GENMAB A/S

14-Apr-2025

4:42:40 PM

37

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:45 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:45 PM

12

1269.00

XCSE

72

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:42:45 PM

11

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:45 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:45 PM

2

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:42:45 PM

29

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:45 PM

4

1268.50

TQEX

GENMAB A/S

14-Apr-2025

4:42:45 PM

9

1268.50

TQEX

GENMAB A/S

14-Apr-2025

4:42:45 PM

4

1268.50

TQEX

GENMAB A/S

14-Apr-2025

4:42:45 PM

7

1268.50

TQEX

GENMAB A/S

14-Apr-2025

4:42:54 PM

17

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:57 PM

13

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:57 PM

11

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:57 PM

13

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:42:57 PM

26

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:43:00 PM

25

1269.50

TQEX

GENMAB A/S

14-Apr-2025

4:43:00 PM

8

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:43:02 PM

31

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:43:14 PM

63

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:43:14 PM

75

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:43:14 PM

3

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:43:14 PM

36

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:43:14 PM

11

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:43:14 PM

36

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:43:16 PM

42

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:43:18 PM

14

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:43:48 PM

69

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:44:04 PM

15

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:44:21 PM

89

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:44:21 PM

32

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:44:22 PM

17

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:44:22 PM

26

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:44:26 PM

7

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:44:26 PM

65

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:44:27 PM

14

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:44:42 PM

2

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:44:44 PM

3

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:45:03 PM

29

1268.00

CEUX

GENMAB A/S

14-Apr-2025

4:45:03 PM

15

1268.50

AQEU

GENMAB A/S

14-Apr-2025

4:45:11 PM

51

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:11 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:11 PM

21

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:11 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:11 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:11 PM

5

1269.00

XCSE

73

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:45:11 PM

10

1268.50

AQEU

GENMAB A/S

14-Apr-2025

4:45:12 PM

49

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

30

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

33

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

18

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

13

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

30

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

51

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

12

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:12 PM

5

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:28 PM

66

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:43 PM

10

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:45:43 PM

33

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:45:54 PM

73

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:46:03 PM

31

1270.00

TQEX

GENMAB A/S

14-Apr-2025

4:46:03 PM

3

1270.00

TQEX

GENMAB A/S

14-Apr-2025

4:46:14 PM

16

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:46:23 PM

89

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:46:23 PM

21

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:46:34 PM

85

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:46:35 PM

7

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:46:42 PM

27

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:46:51 PM

35

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:46:54 PM

61

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:46:54 PM

50

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:46:54 PM

21

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:46:57 PM

22

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:46:58 PM

59

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:01 PM

6

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:14 PM

86

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

12

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

10

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

10

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

21

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

35

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

24

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:19 PM

19

1270.00

TQEX

74

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:47:19 PM

19

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:47:19 PM

1

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:47:20 PM

35

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:20 PM

31

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:20 PM

11

1270.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:20 PM

35

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:20 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:20 PM

1

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:20 PM

26

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:20 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:21 PM

36

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:21 PM

5

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:21 PM

5

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:22 PM

6

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:22 PM

5

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:22 PM

5

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:22 PM

9

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:22 PM

32

1270.50

CEUX

GENMAB A/S

14-Apr-2025

4:47:24 PM

5

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:24 PM

46

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:24 PM

12

1270.00

TQEX

GENMAB A/S

14-Apr-2025

4:47:24 PM

14

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:47:24 PM

34

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:47:25 PM

15

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:47:25 PM

1

1270.00

CEUX

GENMAB A/S

14-Apr-2025

4:47:27 PM

53

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:54 PM

72

1269.50

XCSE

GENMAB A/S

14-Apr-2025

4:47:54 PM

10

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:54 PM

13

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:54 PM

64

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:54 PM

23

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:47:54 PM

6

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:47:55 PM

2

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:47:59 PM

4

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:48:04 PM

3

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:48:09 PM

3

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:48:14 PM

3

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:48:17 PM

5

1269.50

AQEU

GENMAB A/S

14-Apr-2025

4:48:18 PM

82

1268.50

XCSE

GENMAB A/S

14-Apr-2025

4:48:18 PM

2

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:48:18 PM

3

1269.50

CEUX

GENMAB A/S

14-Apr-2025

4:48:18 PM

1

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:48:19 PM

20

1269.00

TQEX

75

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:48:19 PM

2

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:48:24 PM

1

1269.00

TQEX

GENMAB A/S

14-Apr-2025

4:48:29 PM

10

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:48:34 PM

79

1269.00

XCSE

GENMAB A/S

14-Apr-2025

4:48:41 PM

2

1269.00

CEUX

GENMAB A/S

14-Apr-2025

4:49:00 PM

88

1270.00

XCSE

GENMAB A/S

14-Apr-2025

4:49:06 PM

64

1271.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:06 PM

13

1271.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:06 PM

36

1271.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:06 PM

2

1271.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:06 PM

29

1271.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:07 PM

100

1271.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:14 PM

25

1271.00

TQEX

GENMAB A/S

14-Apr-2025

4:49:14 PM

43

1271.00

CEUX

GENMAB A/S

14-Apr-2025

4:49:14 PM

1

1271.00

CEUX

GENMAB A/S

14-Apr-2025

4:49:14 PM

40

1271.00

CEUX

GENMAB A/S

14-Apr-2025

4:49:38 PM

53

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:48 PM

34

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:48 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:49 PM

66

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

15

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

2

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

13

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

11

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

64

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

7

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

48

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:49:49 PM

25

1273.00

TQEX

GENMAB A/S

14-Apr-2025

4:49:49 PM

44

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:49 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:49:49 PM

26

1273.50

AQEU

GENMAB A/S

14-Apr-2025

4:50:00 PM

13

1273.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:04 PM

16

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:04 PM

14

1273.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:12 PM

35

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:12 PM

33

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:12 PM

44

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:12 PM

47

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:12 PM

4

1272.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:12 PM

2

1272.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:12 PM

4

1272.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:12 PM

2

1272.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:12 PM

4

1272.50

TQEX

76

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:50:12 PM

10

1272.50

TQEX

GENMAB A/S

14-Apr-2025

4:50:12 PM

7

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

36

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

8

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

4

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

15

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

40

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

2

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

13

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

7

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

9

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:12 PM

35

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:50:31 PM

51

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:31 PM

10

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:31 PM

13

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:31 PM

11

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:31 PM

32

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:31 PM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:31 PM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:31 PM

5

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:34 PM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:34 PM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:34 PM

5

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:50:48 PM

3

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:48 PM

64

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:48 PM

13

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:48 PM

8

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:48 PM

47

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:50:48 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:48 PM

20

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:50 PM

9

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:50:53 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:53 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:50:53 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:14 PM

61

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:51:33 PM

55

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:39 PM

42

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:51:39 PM

40

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:51:39 PM

36

1274.00

CEUX

GENMAB A/S

14-Apr-2025

4:51:39 PM

5

1274.00

CEUX

GENMAB A/S

14-Apr-2025

4:51:39 PM

6

1274.00

CEUX

GENMAB A/S

14-Apr-2025

4:51:39 PM

6

1274.00

CEUX

GENMAB A/S

14-Apr-2025

4:51:40 PM

20

1273.50

CEUX

77

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:51:46 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:46 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

32

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:51:47 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

36

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:47 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:51:52 PM

57

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:51:52 PM

57

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:00 PM

25

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:00 PM

13

1273.00

AQEU

GENMAB A/S

14-Apr-2025

4:52:10 PM

85

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:52:11 PM

12

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:11 PM

10

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:11 PM

13

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:11 PM

64

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:11 PM

11

1273.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:12 PM

41

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:13 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:13 PM

6

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:13 PM

5

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:13 PM

20

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:24 PM

27

1271.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:24 PM

39

1272.50

TQEX

GENMAB A/S

14-Apr-2025

4:52:24 PM

10

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:24 PM

30

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:24 PM

2

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:52:24 PM

2

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:24 PM

2

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:25 PM

15

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:25 PM

2

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:25 PM

3

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:25 PM

2

1272.50

AQEU

78

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:52:25 PM

7

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:52:27 PM

13

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:31 PM

15

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:52:34 PM

9

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:52:34 PM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:52:34 PM

6

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:52:34 PM

23

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:34 PM

8

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:52:35 PM

14

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:53:02 PM

64

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:53:02 PM

11

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:53:02 PM

11

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:53:02 PM

11

1272.50

XCSE

GENMAB A/S

14-Apr-2025

4:53:02 PM

36

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:53:02 PM

6

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:53:02 PM

6

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:53:02 PM

6

1272.50

CEUX

GENMAB A/S

14-Apr-2025

4:53:02 PM

1

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:53:02 PM

20

1272.50

AQEU

GENMAB A/S

14-Apr-2025

4:53:04 PM

20

1273.00

CEUX

GENMAB A/S

14-Apr-2025

4:53:14 PM

82

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:53:30 PM

22

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:04 PM

83

1274.50

TQEX

GENMAB A/S

14-Apr-2025

4:54:04 PM

29

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:07 PM

69

1274.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:07 PM

15

1274.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:07 PM

36

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:07 PM

56

1274.50

AQEU

GENMAB A/S

14-Apr-2025

4:54:08 PM

64

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:08 PM

11

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:08 PM

13

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:08 PM

64

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:08 PM

13

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:08 PM

11

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:08 PM

36

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:08 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:08 PM

5

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:08 PM

6

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:08 PM

20

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:09 PM

1

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:09 PM

11

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:09 PM

31

1274.50

XCSE

GENMAB A/S

14-Apr-2025

4:54:09 PM

64

1274.50

XCSE

79

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

14-Apr-2025

4:54:18 PM

49

1274.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:18 PM

40

1274.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:18 PM

36

1274.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:30 PM

80

1274.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:30 PM

9

1274.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:32 PM

30

1273.50

CEUX

GENMAB A/S

14-Apr-2025

4:54:42 PM

88

1273.00

XCSE

GENMAB A/S

14-Apr-2025

4:54:48 PM

1

1274.00

XCSE

GENMAB A/S

15-Apr-2025

9:41:56 AM

89

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:42:03 AM

80

1291.50

XCSE

GENMAB A/S

15-Apr-2025

9:42:03 AM

72

1291.50

TQEX

GENMAB A/S

15-Apr-2025

9:42:29 AM

60

1291.50

XCSE

GENMAB A/S

15-Apr-2025

9:42:29 AM

53

1291.50

TQEX

GENMAB A/S

15-Apr-2025

9:42:29 AM

78

1291.00

CEUX

GENMAB A/S

15-Apr-2025

9:42:29 AM

83

1291.00

AQEU

GENMAB A/S

15-Apr-2025

9:42:30 AM

77

1290.50

XCSE

GENMAB A/S

15-Apr-2025

9:45:16 AM

5

1290.50

XCSE

GENMAB A/S

15-Apr-2025

9:45:16 AM

27

1290.50

XCSE

GENMAB A/S

15-Apr-2025

9:45:30 AM

27

1291.00

XCSE

GENMAB A/S

15-Apr-2025

9:46:20 AM

25

1292.50

XCSE

GENMAB A/S

15-Apr-2025

9:46:20 AM

10

1292.00

AQEU

GENMAB A/S

15-Apr-2025

9:46:30 AM

16

1292.00

AQEU

GENMAB A/S

15-Apr-2025

9:47:20 AM

21

1293.50

AQEU

GENMAB A/S

15-Apr-2025

9:47:30 AM

43

1294.00

TQEX

GENMAB A/S

15-Apr-2025

9:47:48 AM

62

1294.00

XCSE

GENMAB A/S

15-Apr-2025

9:50:14 AM

62

1294.00

XCSE

GENMAB A/S

15-Apr-2025

9:50:14 AM

40

1293.00

XCSE

GENMAB A/S

15-Apr-2025

9:50:14 AM

43

1293.00

TQEX

GENMAB A/S

15-Apr-2025

9:50:14 AM

34

1292.00

TQEX

GENMAB A/S

15-Apr-2025

9:50:14 AM

84

1294.00

CEUX

GENMAB A/S

15-Apr-2025

9:50:14 AM

85

1293.00

CEUX

GENMAB A/S

15-Apr-2025

9:50:14 AM

8

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:50:14 AM

66

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:50:14 AM

23

1293.50

AQEU

GENMAB A/S

15-Apr-2025

9:50:14 AM

44

1292.50

AQEU

GENMAB A/S

15-Apr-2025

9:50:20 AM

6

1292.00

TQEX

GENMAB A/S

15-Apr-2025

9:50:20 AM

19

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:50:21 AM

22

1292.00

AQEU

GENMAB A/S

15-Apr-2025

9:50:22 AM

38

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:51:08 AM

28

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:53:07 AM

30

1291.50

XCSE

GENMAB A/S

15-Apr-2025

9:53:07 AM

4

1291.50

XCSE

GENMAB A/S

15-Apr-2025

9:53:39 AM

22

1290.50

CEUX

80

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

9:54:11 AM

22

1290.50

CEUX

GENMAB A/S

15-Apr-2025

9:55:10 AM

22

1290.50

CEUX

GENMAB A/S

15-Apr-2025

9:56:53 AM

24

1291.00

AQEU

GENMAB A/S

15-Apr-2025

9:56:53 AM

3

1291.00

AQEU

GENMAB A/S

15-Apr-2025

9:57:09 AM

39

1290.50

XCSE

GENMAB A/S

15-Apr-2025

9:57:09 AM

36

1291.00

TQEX

GENMAB A/S

15-Apr-2025

9:57:09 AM

24

1290.50

CEUX

GENMAB A/S

15-Apr-2025

9:57:09 AM

30

1291.00

AQEU

GENMAB A/S

15-Apr-2025

9:57:26 AM

87

1290.00

XCSE

GENMAB A/S

15-Apr-2025

9:59:40 AM

25

1292.00

CEUX

GENMAB A/S

15-Apr-2025

9:59:51 AM

89

1292.50

XCSE

GENMAB A/S

15-Apr-2025

9:59:51 AM

29

1292.50

XCSE

GENMAB A/S

15-Apr-2025

9:59:51 AM

13

1292.50

XCSE

GENMAB A/S

15-Apr-2025

9:59:51 AM

16

1292.50

XCSE

GENMAB A/S

15-Apr-2025

9:59:51 AM

30

1292.50

TQEX

GENMAB A/S

15-Apr-2025

9:59:51 AM

13

1292.50

TQEX

GENMAB A/S

15-Apr-2025

9:59:51 AM

7

1292.50

CEUX

GENMAB A/S

15-Apr-2025

9:59:51 AM

8

1292.50

CEUX

GENMAB A/S

15-Apr-2025

9:59:51 AM

1

1292.50

AQEU

GENMAB A/S

15-Apr-2025

9:59:51 AM

1

1292.50

AQEU

GENMAB A/S

15-Apr-2025

9:59:52 AM

7

1292.50

CEUX

GENMAB A/S

15-Apr-2025

9:59:57 AM

15

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:00 AM

15

1292.50

CEUX

GENMAB A/S

15-Apr-2025

10:00:00 AM

8

1292.50

AQEU

GENMAB A/S

15-Apr-2025

10:00:09 AM

45

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:09 AM

40

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:09 AM

47

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:09 AM

25

1293.00

TQEX

GENMAB A/S

15-Apr-2025

10:00:09 AM

89

1293.00

CEUX

GENMAB A/S

15-Apr-2025

10:00:13 AM

24

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:13 AM

15

1292.50

AQEU

GENMAB A/S

15-Apr-2025

10:00:15 AM

66

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:00:16 AM

90

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:16 AM

35

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:16 AM

38

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:16 AM

19

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:16 AM

22

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:16 AM

33

1291.50

TQEX

GENMAB A/S

15-Apr-2025

10:00:17 AM

84

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:18 AM

15

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:18 AM

57

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:18 AM

47

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:00:26 AM

38

1291.00

XCSE

81

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

10:00:26 AM

35

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:26 AM

16

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:26 AM

16

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:26 AM

57

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:26 AM

34

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:00:26 AM

68

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:00:26 AM

23

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:00:26 AM

27

1291.00

AQEU

GENMAB A/S

15-Apr-2025

10:01:21 AM

84

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:01:28 AM

24

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:02:45 AM

25

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:02:52 AM

51

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:03:09 AM

26

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

38

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

13

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

15

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

22

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

16

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

17

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

26

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:09 AM

14

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:03:59 AM

91

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:59 AM

32

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:59 AM

13

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:59 AM

39

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:59 AM

30

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:03:59 AM

88

1294.00

CEUX

GENMAB A/S

15-Apr-2025

10:03:59 AM

35

1294.50

AQEU

GENMAB A/S

15-Apr-2025

10:04:12 AM

86

1293.50

XCSE

GENMAB A/S

15-Apr-2025

10:04:12 AM

26

1293.50

AQEU

GENMAB A/S

15-Apr-2025

10:04:36 AM

90

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:04:36 AM

89

1293.00

CEUX

GENMAB A/S

15-Apr-2025

10:04:36 AM

15

1292.50

AQEU

GENMAB A/S

15-Apr-2025

10:04:36 AM

10

1292.50

AQEU

GENMAB A/S

15-Apr-2025

10:04:45 AM

25

1292.00

TQEX

GENMAB A/S

15-Apr-2025

10:04:45 AM

89

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:04:47 AM

86

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:05:22 AM

15

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:06:03 AM

3

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:06:41 AM

50

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:06:41 AM

31

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:06:41 AM

78

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:07:21 AM

37

1290.00

XCSE

82

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

10:07:21 AM

61

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:07:21 AM

13

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:07:40 AM

37

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:07:40 AM

9

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:09:21 AM

87

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:10:05 AM

39

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:10:05 AM

27

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:10:05 AM

20

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:10:05 AM

28

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:10:05 AM

25

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:10:07 AM

52

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:10:07 AM

25

1291.00

AQEU

GENMAB A/S

15-Apr-2025

10:11:07 AM

22

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:11:21 AM

90

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:11:21 AM

63

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:11:26 AM

58

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:11:28 AM

44

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:11:46 AM

48

1290.00

XCSE

GENMAB A/S

15-Apr-2025

10:11:46 AM

25

1290.00

TQEX

GENMAB A/S

15-Apr-2025

10:11:46 AM

37

1290.00

AQEU

GENMAB A/S

15-Apr-2025

10:11:47 AM

80

1289.50

CEUX

GENMAB A/S

15-Apr-2025

10:12:03 AM

16

1289.50

XCSE

GENMAB A/S

15-Apr-2025

10:12:03 AM

19

1289.50

XCSE

GENMAB A/S

15-Apr-2025

10:12:03 AM

30

1289.50

XCSE

GENMAB A/S

15-Apr-2025

10:12:12 AM

16

1290.00

XCSE

GENMAB A/S

15-Apr-2025

10:12:12 AM

15

1290.00

TQEX

GENMAB A/S

15-Apr-2025

10:13:20 AM

13

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:13:20 AM

24

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:13:20 AM

15

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:13:50 AM

31

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:14:11 AM

25

1292.50

AQEU

GENMAB A/S

15-Apr-2025

10:14:50 AM

67

1293.50

XCSE

GENMAB A/S

15-Apr-2025

10:14:50 AM

24

1293.50

XCSE

GENMAB A/S

15-Apr-2025

10:15:10 AM

84

1293.00

XCSE

GENMAB A/S

15-Apr-2025

10:15:10 AM

26

1293.00

TQEX

GENMAB A/S

15-Apr-2025

10:15:10 AM

23

1293.00

CEUX

GENMAB A/S

15-Apr-2025

10:15:10 AM

61

1293.00

CEUX

GENMAB A/S

15-Apr-2025

10:15:10 AM

28

1292.50

AQEU

GENMAB A/S

15-Apr-2025

10:15:31 AM

58

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:15:31 AM

25

1292.00

TQEX

GENMAB A/S

15-Apr-2025

10:15:31 AM

85

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:15:32 AM

91

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:15:32 AM

89

1291.00

XCSE

83

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

10:15:32 AM

79

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:15:46 AM

89

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:17:51 AM

21

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:18:31 AM

82

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:18:31 AM

3

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:18:31 AM

15

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:18:31 AM

28

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:18:50 AM

11

1292.00

TQEX

GENMAB A/S

15-Apr-2025

10:18:50 AM

20

1292.00

TQEX

GENMAB A/S

15-Apr-2025

10:18:50 AM

89

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:18:50 AM

28

1292.00

AQEU

GENMAB A/S

15-Apr-2025

10:19:00 AM

90

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:20:43 AM

16

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:20:43 AM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:21:11 AM

84

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:21:11 AM

29

1291.50

TQEX

GENMAB A/S

15-Apr-2025

10:21:11 AM

7

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:21:11 AM

6

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:21:11 AM

18

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:21:11 AM

8

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:21:11 AM

28

1291.50

AQEU

GENMAB A/S

15-Apr-2025

10:22:25 AM

89

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:24:12 AM

15

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:24:12 AM

15

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:24:12 AM

34

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:24:12 AM

50

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:24:17 AM

13

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:24:17 AM

39

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:24:17 AM

31

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:25:01 AM

57

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:25:01 AM

20

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:25:01 AM

86

1292.00

XCSE

GENMAB A/S

15-Apr-2025

10:25:01 AM

87

1292.00

CEUX

GENMAB A/S

15-Apr-2025

10:25:01 AM

26

1292.00

AQEU

GENMAB A/S

15-Apr-2025

10:27:31 AM

54

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:27:31 AM

89

1291.00

CEUX

GENMAB A/S

15-Apr-2025

10:27:31 AM

25

1291.00

AQEU

GENMAB A/S

15-Apr-2025

10:28:21 AM

31

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:29:20 AM

59

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:29:20 AM

14

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:29:20 AM

15

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:01 AM

32

1289.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:01 AM

89

1290.00

CEUX

84

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

10:30:01 AM

32

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:30:06 AM

2

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:30:06 AM

6

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:30:06 AM

2

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:30:06 AM

10

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:30:06 AM

88

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:30:07 AM

49

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:07 AM

16

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:07 AM

46

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:45 AM

50

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:45 AM

5

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:45 AM

23

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:45 AM

15

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:45 AM

21

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:30:45 AM

10

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:30:45 AM

25

1291.00

AQEU

GENMAB A/S

15-Apr-2025

10:31:03 AM

49

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:31:03 AM

11

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:31:53 AM

16

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:32:45 AM

31

1291.00

TQEX

GENMAB A/S

15-Apr-2025

10:32:45 AM

8

1291.00

AQEU

GENMAB A/S

15-Apr-2025

10:32:49 AM

90

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:32:49 AM

13

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:32:49 AM

13

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:32:49 AM

39

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:32:49 AM

34

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:32:49 AM

15

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:32:49 AM

85

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:33:29 AM

6

1290.00

TQEX

GENMAB A/S

15-Apr-2025

10:33:29 AM

19

1290.00

TQEX

GENMAB A/S

15-Apr-2025

10:34:24 AM

88

1290.00

XCSE

GENMAB A/S

15-Apr-2025

10:34:51 AM

55

1289.50

XCSE

GENMAB A/S

15-Apr-2025

10:36:29 AM

32

1290.00

CEUX

GENMAB A/S

15-Apr-2025

10:36:30 AM

45

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:36:30 AM

8

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:36:30 AM

32

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:37:05 AM

42

1290.50

XCSE

GENMAB A/S

15-Apr-2025

10:37:05 AM

8

1290.50

CEUX

GENMAB A/S

15-Apr-2025

10:39:00 AM

28

1291.50

TQEX

GENMAB A/S

15-Apr-2025

10:39:52 AM

13

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:39:52 AM

9

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:39:52 AM

15

1291.50

XCSE

GENMAB A/S

15-Apr-2025

10:39:52 AM

15

1291.50

XCSE

85

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

10:39:52 AM

65

1291.00

XCSE

GENMAB A/S

15-Apr-2025

10:39:52 AM

36

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:39:52 AM

1

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:39:52 AM

25

1291.50

CEUX

GENMAB A/S

15-Apr-2025

10:41:31 AM

22

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:41:32 AM

28

1295.00

XCSE

GENMAB A/S

15-Apr-2025

10:41:32 AM

40

1295.00

XCSE

GENMAB A/S

15-Apr-2025

10:41:46 AM

28

1295.50

TQEX

GENMAB A/S

15-Apr-2025

10:42:04 AM

12

1295.00

XCSE

GENMAB A/S

15-Apr-2025

10:42:06 AM

79

1295.00

XCSE

GENMAB A/S

15-Apr-2025

10:42:06 AM

39

1295.00

AQEU

GENMAB A/S

15-Apr-2025

10:42:12 AM

30

1294.50

TQEX

GENMAB A/S

15-Apr-2025

10:42:12 AM

22

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:42:12 AM

66

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:42:12 AM

20

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:42:13 AM

35

1295.00

XCSE

GENMAB A/S

15-Apr-2025

10:42:13 AM

16

1295.00

XCSE

GENMAB A/S

15-Apr-2025

10:43:49 AM

21

1296.00

CEUX

GENMAB A/S

15-Apr-2025

10:43:55 AM

16

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:45:05 AM

45

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:05 AM

25

1297.00

TQEX

GENMAB A/S

15-Apr-2025

10:45:05 AM

90

1297.00

CEUX

GENMAB A/S

15-Apr-2025

10:45:05 AM

9

1297.00

CEUX

GENMAB A/S

15-Apr-2025

10:45:05 AM

24

1297.00

CEUX

GENMAB A/S

15-Apr-2025

10:45:07 AM

4

1297.00

CEUX

GENMAB A/S

15-Apr-2025

10:45:08 AM

86

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

56

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

39

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

14

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

5

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

8

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

13

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

44

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:45:08 AM

32

1296.50

CEUX

GENMAB A/S

15-Apr-2025

10:45:08 AM

22

1296.50

AQEU

GENMAB A/S

15-Apr-2025

10:45:08 AM

13

1296.50

AQEU

GENMAB A/S

15-Apr-2025

10:45:43 AM

18

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:46:43 AM

24

1296.50

AQEU

GENMAB A/S

15-Apr-2025

10:47:31 AM

88

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:14 AM

50

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:14 AM

36

1296.50

CEUX

GENMAB A/S

15-Apr-2025

10:48:18 AM

36

1296.50

CEUX

GENMAB A/S

15-Apr-2025

10:48:23 AM

54

1296.00

XCSE

86

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

10:48:23 AM

35

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:23 AM

15

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:23 AM

10

1296.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:23 AM

10

1295.50

TQEX

GENMAB A/S

15-Apr-2025

10:48:23 AM

36

1296.50

CEUX

GENMAB A/S

15-Apr-2025

10:48:23 AM

68

1296.00

CEUX

GENMAB A/S

15-Apr-2025

10:48:23 AM

1

1296.00

CEUX

GENMAB A/S

15-Apr-2025

10:48:23 AM

23

1295.50

AQEU

GENMAB A/S

15-Apr-2025

10:48:29 AM

88

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:48 AM

87

1294.00

XCSE

GENMAB A/S

15-Apr-2025

10:48:48 AM

85

1293.50

XCSE

GENMAB A/S

15-Apr-2025

10:48:48 AM

90

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:48:48 AM

15

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:48:48 AM

76

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:48:48 AM

85

1293.50

CEUX

GENMAB A/S

15-Apr-2025

10:49:28 AM

89

1292.50

XCSE

GENMAB A/S

15-Apr-2025

10:49:28 AM

87

1292.50

CEUX

GENMAB A/S

15-Apr-2025

10:51:03 AM

86

1293.50

XCSE

GENMAB A/S

15-Apr-2025

10:51:03 AM

35

1293.50

TQEX

GENMAB A/S

15-Apr-2025

10:51:03 AM

79

1293.50

CEUX

GENMAB A/S

15-Apr-2025

10:51:03 AM

35

1294.00

AQEU

GENMAB A/S

15-Apr-2025

10:53:27 AM

72

1294.50

CEUX

GENMAB A/S

15-Apr-2025

10:54:33 AM

43

1294.50

XCSE

GENMAB A/S

15-Apr-2025

10:57:19 AM

29

1295.00

TQEX

GENMAB A/S

15-Apr-2025

10:57:51 AM

64

1294.00

XCSE

GENMAB A/S

15-Apr-2025

10:58:00 AM

30

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:58:00 AM

14

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:58:00 AM

14

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:58:00 AM

34

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:58:00 AM

15

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:58:01 AM

15

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:58:01 AM

15

1295.50

XCSE

GENMAB A/S

15-Apr-2025

10:59:47 AM

7

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:59:47 AM

14

1297.00

XCSE

GENMAB A/S

15-Apr-2025

10:59:47 AM

93

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:00:00 AM

35

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:00:00 AM

14

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:00:00 AM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:00:00 AM

50

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:00:53 AM

30

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:00:53 AM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:01 AM

42

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:01 AM

69

1297.00

XCSE

87

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

11:02:01 AM

25

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:01 AM

24

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:01 AM

42

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:01 AM

27

1297.00

TQEX

GENMAB A/S

15-Apr-2025

11:02:06 AM

32

1296.50

AQEU

GENMAB A/S

15-Apr-2025

11:02:06 AM

3

1296.50

AQEU

GENMAB A/S

15-Apr-2025

11:02:06 AM

87

1296.50

CEUX

GENMAB A/S

15-Apr-2025

11:02:36 AM

71

1296.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:36 AM

18

1296.00

XCSE

GENMAB A/S

15-Apr-2025

11:02:36 AM

26

1296.00

TQEX

GENMAB A/S

15-Apr-2025

11:05:11 AM

84

1296.00

XCSE

GENMAB A/S

15-Apr-2025

11:06:05 AM

13

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:06:05 AM

42

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:06:05 AM

4

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:06:05 AM

36

1297.00

CEUX

GENMAB A/S

15-Apr-2025

11:06:15 AM

90

1297.00

XCSE

GENMAB A/S

15-Apr-2025

11:06:15 AM

90

1297.50

XCSE

GENMAB A/S

15-Apr-2025

11:06:15 AM

85

1298.00

CEUX

GENMAB A/S

15-Apr-2025

11:07:13 AM

25

1298.00

CEUX

GENMAB A/S

15-Apr-2025

11:09:04 AM

62

1298.00

XCSE

GENMAB A/S

15-Apr-2025

11:09:23 AM

28

1298.50

XCSE

GENMAB A/S

15-Apr-2025

11:10:39 AM

91

1299.50

XCSE

GENMAB A/S

15-Apr-2025

11:10:39 AM

14

1299.50

XCSE

GENMAB A/S

15-Apr-2025

11:13:10 AM

89

1299.50

XCSE

GENMAB A/S

15-Apr-2025

11:13:10 AM

34

1299.50

TQEX

GENMAB A/S

15-Apr-2025

11:13:10 AM

88

1299.50

CEUX

GENMAB A/S

15-Apr-2025

11:13:30 AM

72

1299.50

XCSE

GENMAB A/S

15-Apr-2025

11:13:30 AM

22

1299.00

AQEU

GENMAB A/S

15-Apr-2025

11:14:25 AM

91

1302.00

XCSE

GENMAB A/S

15-Apr-2025

11:14:25 AM

30

1302.00

CEUX

GENMAB A/S

15-Apr-2025

11:14:25 AM

54

1301.50

CEUX

GENMAB A/S

15-Apr-2025

11:14:26 AM

45

1302.00

XCSE

GENMAB A/S

15-Apr-2025

11:15:00 AM

25

1302.50

TQEX

GENMAB A/S

15-Apr-2025

11:15:00 AM

89

1302.50

CEUX

GENMAB A/S

15-Apr-2025

11:15:00 AM

15

1302.50

CEUX

GENMAB A/S

15-Apr-2025

11:15:02 AM

57

1302.50

XCSE

GENMAB A/S

15-Apr-2025

11:15:07 AM

23

1302.50

AQEU

GENMAB A/S

15-Apr-2025

11:15:07 AM

20

1302.50

CEUX

GENMAB A/S

15-Apr-2025

11:15:33 AM

25

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:15:33 AM

77

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:16:06 AM

84

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:16:06 AM

34

1302.50

TQEX

GENMAB A/S

15-Apr-2025

11:16:06 AM

21

1303.00

CEUX

88

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

11:16:06 AM

69

1303.00

CEUX

GENMAB A/S

15-Apr-2025

11:17:04 AM

21

1302.50

AQEU

GENMAB A/S

15-Apr-2025

11:17:28 AM

8

1302.50

AQEU

GENMAB A/S

15-Apr-2025

11:18:52 AM

42

1303.00

CEUX

GENMAB A/S

15-Apr-2025

11:19:00 AM

44

1303.00

CEUX

GENMAB A/S

15-Apr-2025

11:19:03 AM

6

1302.50

AQEU

GENMAB A/S

15-Apr-2025

11:19:40 AM

85

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:19:40 AM

88

1303.00

CEUX

GENMAB A/S

15-Apr-2025

11:20:31 AM

29

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:20:31 AM

31

1303.00

TQEX

GENMAB A/S

15-Apr-2025

11:20:51 AM

60

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:20:51 AM

26

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:21:01 AM

58

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:21:01 AM

15

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:21:01 AM

24

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:21:01 AM

18

1303.00

CEUX

GENMAB A/S

15-Apr-2025

11:21:01 AM

7

1303.00

CEUX

GENMAB A/S

15-Apr-2025

11:21:09 AM

22

1302.50

AQEU

GENMAB A/S

15-Apr-2025

11:21:27 AM

84

1302.00

XCSE

GENMAB A/S

15-Apr-2025

11:21:27 AM

7

1302.50

AQEU

GENMAB A/S

15-Apr-2025

11:21:27 AM

10

1302.00

CEUX

GENMAB A/S

15-Apr-2025

11:21:33 AM

25

1302.00

CEUX

GENMAB A/S

15-Apr-2025

11:21:33 AM

12

1302.00

CEUX

GENMAB A/S

15-Apr-2025

11:21:33 AM

3

1302.00

CEUX

GENMAB A/S

15-Apr-2025

11:21:35 AM

26

1301.50

AQEU

GENMAB A/S

15-Apr-2025

11:21:49 AM

33

1301.00

XCSE

GENMAB A/S

15-Apr-2025

11:21:49 AM

22

1301.50

AQEU

GENMAB A/S

15-Apr-2025

11:21:49 AM

28

1301.50

TQEX

GENMAB A/S

15-Apr-2025

11:21:49 AM

1

1301.50

CEUX

GENMAB A/S

15-Apr-2025

11:21:49 AM

33

1301.50

CEUX

GENMAB A/S

15-Apr-2025

11:22:04 AM

58

1301.00

XCSE

GENMAB A/S

15-Apr-2025

11:24:51 AM

54

1301.50

XCSE

GENMAB A/S

15-Apr-2025

11:24:51 AM

16

1301.50

XCSE

GENMAB A/S

15-Apr-2025

11:24:51 AM

8

1301.00

CEUX

GENMAB A/S

15-Apr-2025

11:24:52 AM

46

1301.50

XCSE

GENMAB A/S

15-Apr-2025

11:26:26 AM

5

1302.50

CEUX

GENMAB A/S

15-Apr-2025

11:26:42 AM

46

1303.00

XCSE

GENMAB A/S

15-Apr-2025

11:30:11 AM

68

1304.00

XCSE

GENMAB A/S

15-Apr-2025

11:30:11 AM

20

1304.00

XCSE

GENMAB A/S

15-Apr-2025

11:30:11 AM

25

1304.00

TQEX

GENMAB A/S

15-Apr-2025

11:31:18 AM

13

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:31:18 AM

52

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:31:18 AM

49

1306.00

XCSE

89

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

11:31:18 AM

8

1305.50

AQEU

GENMAB A/S

15-Apr-2025

11:31:18 AM

87

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:31:18 AM

36

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:31:18 AM

7

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:31:18 AM

8

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:31:18 AM

1

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:31:18 AM

25

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:33:04 AM

25

1306.50

TQEX

GENMAB A/S

15-Apr-2025

11:33:11 AM

84

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:34:01 AM

77

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:34:01 AM

9

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:34:01 AM

48

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:34:01 AM

66

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:34:01 AM

98

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:34:01 AM

15

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:34:13 AM

47

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:34:13 AM

26

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:36:02 AM

91

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:36:04 AM

88

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:36:04 AM

25

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:36:04 AM

36

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:36:04 AM

25

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:36:04 AM

6

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:36:08 AM

13

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:36:15 AM

36

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:36:51 AM

84

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:37:00 AM

1

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:37:04 AM

21

1305.50

AQEU

GENMAB A/S

15-Apr-2025

11:37:05 AM

16

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:37:05 AM

30

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:37:05 AM

14

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:37:05 AM

36

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:37:21 AM

10

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:37:21 AM

25

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:38:06 AM

29

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:38:12 AM

1

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:38:23 AM

14

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:39:00 AM

52

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:40:00 AM

23

1306.50

AQEU

GENMAB A/S

15-Apr-2025

11:40:00 AM

36

1307.00

CEUX

GENMAB A/S

15-Apr-2025

11:40:00 AM

36

1307.00

CEUX

GENMAB A/S

15-Apr-2025

11:40:00 AM

8

1307.00

CEUX

GENMAB A/S

15-Apr-2025

11:40:01 AM

32

1307.00

CEUX

90

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

11:40:37 AM

32

1307.00

CEUX

GENMAB A/S

15-Apr-2025

11:40:41 AM

24

1306.50

AQEU

GENMAB A/S

15-Apr-2025

11:41:04 AM

47

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:41:04 AM

30

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:41:04 AM

25

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:41:04 AM

12

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:41:04 AM

6

1306.50

AQEU

GENMAB A/S

15-Apr-2025

11:41:04 AM

88

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:41:05 AM

47

1306.50

XCSE

GENMAB A/S

15-Apr-2025

11:41:08 AM

89

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:42:06 AM

26

1305.50

TQEX

GENMAB A/S

15-Apr-2025

11:42:06 AM

12

1305.50

AQEU

GENMAB A/S

15-Apr-2025

11:42:06 AM

21

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:42:06 AM

65

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:42:41 AM

75

1305.00

XCSE

GENMAB A/S

15-Apr-2025

11:42:52 AM

10

1305.00

XCSE

GENMAB A/S

15-Apr-2025

11:44:23 AM

31

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:45:35 AM

58

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:45:35 AM

49

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:46:21 AM

86

1305.00

XCSE

GENMAB A/S

15-Apr-2025

11:47:32 AM

31

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:47:32 AM

21

1305.50

AQEU

GENMAB A/S

15-Apr-2025

11:48:34 AM

60

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:48:34 AM

24

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:51:22 AM

89

1305.00

XCSE

GENMAB A/S

15-Apr-2025

11:51:22 AM

72

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:51:22 AM

13

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:51:22 AM

16

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:51:22 AM

13

1305.50

XCSE

GENMAB A/S

15-Apr-2025

11:51:22 AM

33

1305.50

TQEX

GENMAB A/S

15-Apr-2025

11:51:22 AM

18

1305.50

AQEU

GENMAB A/S

15-Apr-2025

11:51:22 AM

36

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:51:22 AM

60

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:51:22 AM

36

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:51:22 AM

10

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:51:22 AM

26

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:51:22 AM

8

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:52:25 AM

88

1306.00

CEUX

GENMAB A/S

15-Apr-2025

11:54:07 AM

35

1306.50

TQEX

GENMAB A/S

15-Apr-2025

11:54:07 AM

22

1306.50

AQEU

GENMAB A/S

15-Apr-2025

11:54:07 AM

36

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:54:07 AM

23

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:54:30 AM

1

1306.50

CEUX

91

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

11:55:38 AM

86

1307.00

XCSE

GENMAB A/S

15-Apr-2025

11:55:38 AM

35

1307.00

XCSE

GENMAB A/S

15-Apr-2025

11:55:38 AM

14

1307.00

XCSE

GENMAB A/S

15-Apr-2025

11:55:38 AM

35

1307.00

XCSE

GENMAB A/S

15-Apr-2025

11:55:38 AM

24

1307.00

XCSE

GENMAB A/S

15-Apr-2025

11:56:11 AM

86

1307.00

XCSE

GENMAB A/S

15-Apr-2025

11:57:10 AM

89

1307.50

XCSE

GENMAB A/S

15-Apr-2025

11:57:10 AM

36

1307.50

CEUX

GENMAB A/S

15-Apr-2025

11:57:33 AM

67

1307.50

XCSE

GENMAB A/S

15-Apr-2025

11:58:29 AM

36

1307.50

CEUX

GENMAB A/S

15-Apr-2025

11:58:30 AM

32

1307.50

CEUX

GENMAB A/S

15-Apr-2025

11:58:33 AM

56

1307.50

XCSE

GENMAB A/S

15-Apr-2025

11:59:00 AM

38

1307.00

TQEX

GENMAB A/S

15-Apr-2025

11:59:03 AM

23

1306.50

AQEU

GENMAB A/S

15-Apr-2025

11:59:03 AM

4

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:59:03 AM

24

1306.50

CEUX

GENMAB A/S

15-Apr-2025

11:59:16 AM

82

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:59:17 AM

4

1306.00

XCSE

GENMAB A/S

15-Apr-2025

11:59:32 AM

90

1305.00

XCSE

GENMAB A/S

15-Apr-2025

11:59:32 AM

32

1305.50

TQEX

GENMAB A/S

15-Apr-2025

11:59:32 AM

44

1305.50

AQEU

GENMAB A/S

15-Apr-2025

11:59:32 AM

87

1305.50

CEUX

GENMAB A/S

15-Apr-2025

11:59:33 AM

5

1304.50

AQEU

GENMAB A/S

15-Apr-2025

11:59:49 AM

37

1304.50

AQEU

GENMAB A/S

15-Apr-2025

11:59:49 AM

84

1304.50

CEUX

GENMAB A/S

15-Apr-2025

11:59:49 AM

2

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:03:19 PM

85

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:03:42 PM

38

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:03:42 PM

15

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:03:42 PM

14

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:03:42 PM

14

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:04:33 PM

15

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:04:33 PM

48

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:05:21 PM

87

1303.50

XCSE

GENMAB A/S

15-Apr-2025

12:05:21 PM

25

1304.00

AQEU

GENMAB A/S

15-Apr-2025

12:06:45 PM

84

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:06:46 PM

25

1304.00

TQEX

GENMAB A/S

15-Apr-2025

12:09:41 PM

87

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:09:41 PM

1

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:09:41 PM

25

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:10:14 PM

85

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:10:16 PM

24

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:10:16 PM

26

1304.50

XCSE

92

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

12:10:16 PM

88

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:10:16 PM

25

1304.00

AQEU

GENMAB A/S

15-Apr-2025

12:10:16 PM

36

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:10:16 PM

3

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:10:17 PM

27

1304.00

TQEX

GENMAB A/S

15-Apr-2025

12:10:17 PM

32

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:12:47 PM

36

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:12:47 PM

11

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:13:22 PM

45

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:13:22 PM

15

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:13:22 PM

34

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:13:23 PM

16

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:13:23 PM

14

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:13:23 PM

39

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:13:23 PM

34

1304.50

XCSE

GENMAB A/S

15-Apr-2025

12:14:00 PM

86

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:14:00 PM

36

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:14:00 PM

3

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:14:00 PM

22

1303.50

CEUX

GENMAB A/S

15-Apr-2025

12:14:01 PM

66

1303.50

CEUX

GENMAB A/S

15-Apr-2025

12:15:21 PM

90

1302.50

XCSE

GENMAB A/S

15-Apr-2025

12:15:21 PM

32

1302.50

TQEX

GENMAB A/S

15-Apr-2025

12:15:21 PM

31

1303.00

AQEU

GENMAB A/S

15-Apr-2025

12:15:33 PM

25

1302.50

CEUX

GENMAB A/S

15-Apr-2025

12:15:33 PM

4

1302.50

CEUX

GENMAB A/S

15-Apr-2025

12:15:59 PM

84

1302.00

CEUX

GENMAB A/S

15-Apr-2025

12:17:42 PM

78

1302.50

CEUX

GENMAB A/S

15-Apr-2025

12:17:42 PM

12

1302.50

CEUX

GENMAB A/S

15-Apr-2025

12:17:51 PM

28

1302.50

XCSE

GENMAB A/S

15-Apr-2025

12:17:51 PM

14

1302.50

XCSE

GENMAB A/S

15-Apr-2025

12:19:53 PM

22

1302.00

AQEU

GENMAB A/S

15-Apr-2025

12:20:01 PM

39

1316.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:01 PM

52

1316.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:02 PM

84

1324.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:02 PM

84

1323.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:02 PM

14

1322.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:02 PM

73

1322.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:02 PM

85

1320.50

XCSE

GENMAB A/S

15-Apr-2025

12:20:02 PM

27

1325.00

TQEX

GENMAB A/S

15-Apr-2025

12:20:02 PM

28

1323.50

TQEX

GENMAB A/S

15-Apr-2025

12:20:02 PM

25

1325.00

AQEU

GENMAB A/S

15-Apr-2025

12:20:02 PM

27

1323.50

AQEU

GENMAB A/S

15-Apr-2025

12:20:02 PM

85

1324.50

CEUX

93

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

12:20:02 PM

4

1323.50

CEUX

GENMAB A/S

15-Apr-2025

12:20:02 PM

83

1323.50

CEUX

GENMAB A/S

15-Apr-2025

12:20:02 PM

69

1322.50

CEUX

GENMAB A/S

15-Apr-2025

12:20:02 PM

20

1322.50

CEUX

GENMAB A/S

15-Apr-2025

12:20:02 PM

89

1321.00

CEUX

GENMAB A/S

15-Apr-2025

12:20:03 PM

85

1319.50

XCSE

GENMAB A/S

15-Apr-2025

12:20:03 PM

30

1321.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:03 PM

20

1321.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:03 PM

50

1320.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:03 PM

27

1319.50

XCSE

GENMAB A/S

15-Apr-2025

12:20:03 PM

38

1321.50

CEUX

GENMAB A/S

15-Apr-2025

12:20:03 PM

35

1320.00

CEUX

GENMAB A/S

15-Apr-2025

12:20:35 PM

26

1311.00

XCSE

GENMAB A/S

15-Apr-2025

12:20:35 PM

33

1311.00

CEUX

GENMAB A/S

15-Apr-2025

12:21:14 PM

31

1310.00

XCSE

GENMAB A/S

15-Apr-2025

12:21:14 PM

26

1309.00

XCSE

GENMAB A/S

15-Apr-2025

12:21:54 PM

29

1309.00

XCSE

GENMAB A/S

15-Apr-2025

12:21:54 PM

22

1309.50

CEUX

GENMAB A/S

15-Apr-2025

12:21:54 PM

8

1309.50

CEUX

GENMAB A/S

15-Apr-2025

12:21:54 PM

2

1309.50

CEUX

GENMAB A/S

15-Apr-2025

12:22:10 PM

28

1311.50

CEUX

GENMAB A/S

15-Apr-2025

12:22:10 PM

2

1311.50

CEUX

GENMAB A/S

15-Apr-2025

12:22:16 PM

25

1314.50

XCSE

GENMAB A/S

15-Apr-2025

12:22:42 PM

25

1316.00

XCSE

GENMAB A/S

15-Apr-2025

12:22:49 PM

25

1314.50

XCSE

GENMAB A/S

15-Apr-2025

12:23:36 PM

25

1313.00

CEUX

GENMAB A/S

15-Apr-2025

12:23:36 PM

1

1313.00

CEUX

GENMAB A/S

15-Apr-2025

12:23:49 PM

6

1313.00

XCSE

GENMAB A/S

15-Apr-2025

12:23:49 PM

1

1313.00

XCSE

GENMAB A/S

15-Apr-2025

12:23:49 PM

1

1313.00

XCSE

GENMAB A/S

15-Apr-2025

12:23:49 PM

18

1313.00

XCSE

GENMAB A/S

15-Apr-2025

12:24:04 PM

25

1316.00

CEUX

GENMAB A/S

15-Apr-2025

12:24:05 PM

32

1316.50

XCSE

GENMAB A/S

15-Apr-2025

12:24:05 PM

27

1315.50

XCSE

GENMAB A/S

15-Apr-2025

12:24:05 PM

26

1316.00

AQEU

GENMAB A/S

15-Apr-2025

12:25:03 PM

29

1314.50

XCSE

GENMAB A/S

15-Apr-2025

12:25:03 PM

32

1313.50

XCSE

GENMAB A/S

15-Apr-2025

12:25:03 PM

25

1315.00

TQEX

GENMAB A/S

15-Apr-2025

12:25:03 PM

26

1315.50

CEUX

GENMAB A/S

15-Apr-2025

12:25:26 PM

19

1312.00

CEUX

GENMAB A/S

15-Apr-2025

12:28:43 PM

50

1311.50

XCSE

GENMAB A/S

15-Apr-2025

12:28:43 PM

17

1311.50

XCSE

GENMAB A/S

15-Apr-2025

12:28:43 PM

26

1311.50

CEUX

94

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

12:29:33 PM

21

1311.50

CEUX

GENMAB A/S

15-Apr-2025

12:29:37 PM

20

1311.50

CEUX

GENMAB A/S

15-Apr-2025

12:29:45 PM

25

1311.50

TQEX

GENMAB A/S

15-Apr-2025

12:30:53 PM

26

1311.50

AQEU

GENMAB A/S

15-Apr-2025

12:30:53 PM

11

1311.50

CEUX

GENMAB A/S

15-Apr-2025

12:30:53 PM

35

1311.50

CEUX

GENMAB A/S

15-Apr-2025

12:31:01 PM

82

1311.00

XCSE

GENMAB A/S

15-Apr-2025

12:31:02 PM

29

1310.00

XCSE

GENMAB A/S

15-Apr-2025

12:31:02 PM

29

1310.00

CEUX

GENMAB A/S

15-Apr-2025

12:31:45 PM

26

1309.00

XCSE

GENMAB A/S

15-Apr-2025

12:31:45 PM

30

1309.00

CEUX

GENMAB A/S

15-Apr-2025

12:31:53 PM

25

1308.00

CEUX

GENMAB A/S

15-Apr-2025

12:32:02 PM

17

1307.50

XCSE

GENMAB A/S

15-Apr-2025

12:32:02 PM

54

1307.50

XCSE

GENMAB A/S

15-Apr-2025

12:32:15 PM

4

1306.00

XCSE

GENMAB A/S

15-Apr-2025

12:32:15 PM

74

1306.00

XCSE

GENMAB A/S

15-Apr-2025

12:32:58 PM

24

1305.00

XCSE

GENMAB A/S

15-Apr-2025

12:32:59 PM

12

1305.00

XCSE

GENMAB A/S

15-Apr-2025

12:32:59 PM

25

1305.00

XCSE

GENMAB A/S

15-Apr-2025

12:33:04 PM

18

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:33:04 PM

8

1304.50

CEUX

GENMAB A/S

15-Apr-2025

12:33:17 PM

30

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:33:17 PM

15

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:35:39 PM

61

1305.00

XCSE

GENMAB A/S

15-Apr-2025

12:35:39 PM

30

1305.00

CEUX

GENMAB A/S

15-Apr-2025

12:35:39 PM

7

1305.00

CEUX

GENMAB A/S

15-Apr-2025

12:36:30 PM

17

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:36:30 PM

1

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:38:51 PM

11

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:40:09 PM

27

1303.00

XCSE

GENMAB A/S

15-Apr-2025

12:40:09 PM

25

1303.50

TQEX

GENMAB A/S

15-Apr-2025

12:40:09 PM

3

1302.50

AQEU

GENMAB A/S

15-Apr-2025

12:40:09 PM

25

1303.50

CEUX

GENMAB A/S

15-Apr-2025

12:40:09 PM

2

1302.50

CEUX

GENMAB A/S

15-Apr-2025

12:40:09 PM

23

1302.50

CEUX

GENMAB A/S

15-Apr-2025

12:40:23 PM

21

1303.50

AQEU

GENMAB A/S

15-Apr-2025

12:41:40 PM

30

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:41:40 PM

30

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:41:40 PM

3

1304.00

CEUX

GENMAB A/S

15-Apr-2025

12:41:54 PM

91

1304.00

XCSE

GENMAB A/S

15-Apr-2025

12:41:54 PM

25

1304.00

TQEX

GENMAB A/S

15-Apr-2025

12:41:54 PM

4

1303.50

AQEU

GENMAB A/S

15-Apr-2025

12:41:55 PM

38

1303.00

CEUX

95

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

12:41:55 PM

24

1303.00

CEUX

GENMAB A/S

15-Apr-2025

12:42:28 PM

21

1302.50

AQEU

GENMAB A/S

15-Apr-2025

12:42:31 PM

87

1302.50

XCSE

GENMAB A/S

15-Apr-2025

12:42:31 PM

1

1302.50

AQEU

GENMAB A/S

15-Apr-2025

12:42:31 PM

58

1302.00

CEUX

GENMAB A/S

15-Apr-2025

12:42:31 PM

8

1302.00

CEUX

GENMAB A/S

15-Apr-2025

12:42:32 PM

31

1301.50

XCSE

GENMAB A/S

15-Apr-2025

12:42:32 PM

12

1301.50

XCSE

GENMAB A/S

15-Apr-2025

12:42:38 PM

25

1301.50

TQEX

GENMAB A/S

15-Apr-2025

12:43:46 PM

10

1300.00

XCSE

GENMAB A/S

15-Apr-2025

12:43:46 PM

21

1300.00

XCSE

GENMAB A/S

15-Apr-2025

12:43:46 PM

58

1300.00

XCSE

GENMAB A/S

15-Apr-2025

12:44:31 PM

17

1299.50

CEUX

GENMAB A/S

15-Apr-2025

12:44:41 PM

85

1299.00

XCSE

GENMAB A/S

15-Apr-2025

12:44:41 PM

8

1299.50

CEUX

GENMAB A/S

15-Apr-2025

12:44:41 PM

4

1298.50

CEUX

GENMAB A/S

15-Apr-2025

12:44:41 PM

4

1298.50

CEUX

GENMAB A/S

15-Apr-2025

12:44:41 PM

18

1298.50

CEUX

GENMAB A/S

15-Apr-2025

12:44:50 PM

15

1299.50

CEUX

GENMAB A/S

15-Apr-2025

12:44:57 PM

11

1299.50

CEUX

GENMAB A/S

15-Apr-2025

12:45:21 PM

65

1299.00

XCSE

GENMAB A/S

15-Apr-2025

12:45:22 PM

13

1298.50

CEUX

GENMAB A/S

15-Apr-2025

12:45:22 PM

13

1298.50

CEUX

GENMAB A/S

15-Apr-2025

12:46:35 PM

25

1300.00

AQEU

GENMAB A/S

15-Apr-2025

12:46:35 PM

25

1300.00

CEUX

GENMAB A/S

15-Apr-2025

12:46:55 PM

25

1300.00

CEUX

GENMAB A/S

15-Apr-2025

12:49:40 PM

16

1300.00

TQEX

GENMAB A/S

15-Apr-2025

12:49:40 PM

9

1300.00

TQEX

GENMAB A/S

15-Apr-2025

12:49:40 PM

14

1300.00

CEUX

GENMAB A/S

15-Apr-2025

12:49:40 PM

21

1300.00

CEUX

GENMAB A/S

15-Apr-2025

12:50:25 PM

81

1299.50

XCSE

GENMAB A/S

15-Apr-2025

12:50:27 PM

1

1299.00

CEUX

GENMAB A/S

15-Apr-2025

12:50:29 PM

18

1299.00

CEUX

GENMAB A/S

15-Apr-2025

12:50:29 PM

6

1299.00

CEUX

GENMAB A/S

15-Apr-2025

12:51:12 PM

40

1300.00

CEUX

GENMAB A/S

15-Apr-2025

12:51:18 PM

10

1300.00

AQEU

GENMAB A/S

15-Apr-2025

12:51:19 PM

15

1300.00

AQEU

GENMAB A/S

15-Apr-2025

12:51:20 PM

87

1300.50

XCSE

GENMAB A/S

15-Apr-2025

12:51:45 PM

35

1300.50

XCSE

GENMAB A/S

15-Apr-2025

12:51:45 PM

50

1300.50

XCSE

GENMAB A/S

15-Apr-2025

12:51:45 PM

27

1301.00

CEUX

GENMAB A/S

15-Apr-2025

12:53:07 PM

85

1300.50

XCSE

GENMAB A/S

15-Apr-2025

12:53:07 PM

25

1300.50

TQEX

96

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

12:53:07 PM

25

1300.50

CEUX

GENMAB A/S

15-Apr-2025

12:55:22 PM

89

1299.50

XCSE

GENMAB A/S

15-Apr-2025

12:55:25 PM

10

1299.00

CEUX

GENMAB A/S

15-Apr-2025

12:55:25 PM

15

1299.00

CEUX

GENMAB A/S

15-Apr-2025

12:57:15 PM

25

1300.00

AQEU

GENMAB A/S

15-Apr-2025

12:58:01 PM

32

1299.50

XCSE

GENMAB A/S

15-Apr-2025

12:58:01 PM

57

1299.50

XCSE

GENMAB A/S

15-Apr-2025

12:58:01 PM

25

1299.50

TQEX

GENMAB A/S

15-Apr-2025

12:58:01 PM

26

1299.50

CEUX

GENMAB A/S

15-Apr-2025

12:58:01 PM

35

1299.50

CEUX

GENMAB A/S

15-Apr-2025

12:58:14 PM

86

1298.50

XCSE

GENMAB A/S

15-Apr-2025

12:58:15 PM

22

1298.00

CEUX

GENMAB A/S

15-Apr-2025

12:58:15 PM

6

1298.00

CEUX

GENMAB A/S

15-Apr-2025

12:58:38 PM

84

1298.00

XCSE

GENMAB A/S

15-Apr-2025

12:58:38 PM

39

1298.00

CEUX

GENMAB A/S

15-Apr-2025

12:58:41 PM

7

1298.00

CEUX

GENMAB A/S

15-Apr-2025

1:00:00 PM

90

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:00:00 PM

5

1298.50

AQEU

GENMAB A/S

15-Apr-2025

1:00:00 PM

18

1298.50

CEUX

GENMAB A/S

15-Apr-2025

1:00:00 PM

17

1298.50

CEUX

GENMAB A/S

15-Apr-2025

1:00:00 PM

8

1298.50

CEUX

GENMAB A/S

15-Apr-2025

1:00:02 PM

12

1298.50

AQEU

GENMAB A/S

15-Apr-2025

1:00:02 PM

8

1298.50

AQEU

GENMAB A/S

15-Apr-2025

1:01:05 PM

77

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:01:05 PM

14

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:01:05 PM

91

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:01:05 PM

25

1298.00

TQEX

GENMAB A/S

15-Apr-2025

1:01:05 PM

35

1299.50

CEUX

GENMAB A/S

15-Apr-2025

1:01:05 PM

29

1298.50

CEUX

GENMAB A/S

15-Apr-2025

1:01:06 PM

22

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:01:06 PM

29

1298.00

CEUX

GENMAB A/S

15-Apr-2025

1:01:08 PM

41

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:01:10 PM

64

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:01:10 PM

3

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:04:08 PM

10

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:04:08 PM

43

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:04:08 PM

32

1299.00

CEUX

GENMAB A/S

15-Apr-2025

1:04:15 PM

3

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:04:15 PM

17

1299.00

AQEU

GENMAB A/S

15-Apr-2025

1:04:15 PM

31

1299.00

CEUX

GENMAB A/S

15-Apr-2025

1:05:24 PM

5

1299.50

CEUX

GENMAB A/S

15-Apr-2025

1:05:27 PM

21

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:05:27 PM

37

1299.50

CEUX

97

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

1:06:00 PM

45

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:06:00 PM

25

1299.50

TQEX

GENMAB A/S

15-Apr-2025

1:06:03 PM

8

1299.00

AQEU

GENMAB A/S

15-Apr-2025

1:08:51 PM

25

1298.50

TQEX

GENMAB A/S

15-Apr-2025

1:10:03 PM

90

1299.00

XCSE

GENMAB A/S

15-Apr-2025

1:10:03 PM

67

1299.00

CEUX

GENMAB A/S

15-Apr-2025

1:10:13 PM

18

1298.50

AQEU

GENMAB A/S

15-Apr-2025

1:10:13 PM

7

1298.50

AQEU

GENMAB A/S

15-Apr-2025

1:10:32 PM

45

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:10:32 PM

13

1298.00

CEUX

GENMAB A/S

15-Apr-2025

1:10:32 PM

19

1298.00

CEUX

GENMAB A/S

15-Apr-2025

1:11:06 PM

48

1298.50

CEUX

GENMAB A/S

15-Apr-2025

1:11:10 PM

2

1298.50

CEUX

GENMAB A/S

15-Apr-2025

1:11:39 PM

21

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:12:29 PM

13

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:12:29 PM

51

1298.00

XCSE

GENMAB A/S

15-Apr-2025

1:12:57 PM

43

1297.50

CEUX

GENMAB A/S

15-Apr-2025

1:13:31 PM

22

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:14:07 PM

16

1297.50

XCSE

GENMAB A/S

15-Apr-2025

1:14:07 PM

29

1297.50

XCSE

GENMAB A/S

15-Apr-2025

1:14:07 PM

16

1297.50

XCSE

GENMAB A/S

15-Apr-2025

1:14:25 PM

16

1296.50

CEUX

GENMAB A/S

15-Apr-2025

1:14:59 PM

14

1296.50

TQEX

GENMAB A/S

15-Apr-2025

1:14:59 PM

3

1296.50

AQEU

GENMAB A/S

15-Apr-2025

1:14:59 PM

9

1296.50

CEUX

GENMAB A/S

15-Apr-2025

1:15:09 PM

16

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:15:09 PM

5

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:15:09 PM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:15:10 PM

18

1296.50

AQEU

GENMAB A/S

15-Apr-2025

1:15:31 PM

11

1296.50

TQEX

GENMAB A/S

15-Apr-2025

1:15:31 PM

4

1296.50

AQEU

GENMAB A/S

15-Apr-2025

1:16:24 PM

41

1296.50

XCSE

GENMAB A/S

15-Apr-2025

1:16:24 PM

45

1296.50

XCSE

GENMAB A/S

15-Apr-2025

1:16:24 PM

62

1296.50

CEUX

GENMAB A/S

15-Apr-2025

1:16:24 PM

2

1296.50

CEUX

GENMAB A/S

15-Apr-2025

1:16:39 PM

88

1295.50

XCSE

GENMAB A/S

15-Apr-2025

1:16:42 PM

37

1295.00

CEUX

GENMAB A/S

15-Apr-2025

1:16:45 PM

25

1294.50

AQEU

GENMAB A/S

15-Apr-2025

1:16:47 PM

14

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:16:47 PM

73

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:16:47 PM

46

1294.00

CEUX

GENMAB A/S

15-Apr-2025

1:17:41 PM

66

1293.00

XCSE

GENMAB A/S

15-Apr-2025

1:18:53 PM

11

1296.50

XCSE

98

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

1:18:53 PM

74

1296.50

XCSE

GENMAB A/S

15-Apr-2025

1:18:53 PM

25

1296.50

TQEX

GENMAB A/S

15-Apr-2025

1:18:53 PM

18

1296.50

CEUX

GENMAB A/S

15-Apr-2025

1:18:53 PM

32

1296.50

CEUX

GENMAB A/S

15-Apr-2025

1:19:07 PM

89

1295.50

XCSE

GENMAB A/S

15-Apr-2025

1:19:07 PM

85

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:19:07 PM

47

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:19:07 PM

41

1294.00

CEUX

GENMAB A/S

15-Apr-2025

1:19:51 PM

49

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:21:52 PM

39

1295.00

CEUX

GENMAB A/S

15-Apr-2025

1:21:59 PM

19

1295.00

TQEX

GENMAB A/S

15-Apr-2025

1:21:59 PM

6

1295.00

TQEX

GENMAB A/S

15-Apr-2025

1:22:43 PM

21

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:22:43 PM

13

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:22:48 PM

14

1295.50

AQEU

GENMAB A/S

15-Apr-2025

1:23:19 PM

87

1296.00

XCSE

GENMAB A/S

15-Apr-2025

1:23:19 PM

33

1296.00

CEUX

GENMAB A/S

15-Apr-2025

1:23:21 PM

11

1295.50

AQEU

GENMAB A/S

15-Apr-2025

1:23:35 PM

68

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:23:36 PM

17

1297.00

XCSE

GENMAB A/S

15-Apr-2025

1:23:36 PM

15

1296.00

XCSE

GENMAB A/S

15-Apr-2025

1:23:36 PM

73

1296.00

XCSE

GENMAB A/S

15-Apr-2025

1:23:36 PM

31

1297.00

CEUX

GENMAB A/S

15-Apr-2025

1:23:52 PM

91

1295.00

XCSE

GENMAB A/S

15-Apr-2025

1:24:35 PM

27

1293.50

XCSE

GENMAB A/S

15-Apr-2025

1:24:35 PM

25

1292.50

XCSE

GENMAB A/S

15-Apr-2025

1:24:35 PM

25

1293.00

CEUX

GENMAB A/S

15-Apr-2025

1:25:43 PM

29

1292.50

CEUX

GENMAB A/S

15-Apr-2025

1:26:53 PM

66

1293.00

XCSE

GENMAB A/S

15-Apr-2025

1:27:45 PM

40

1293.00

XCSE

GENMAB A/S

15-Apr-2025

1:27:45 PM

25

1293.50

TQEX

GENMAB A/S

15-Apr-2025

1:27:45 PM

25

1293.50

AQEU

GENMAB A/S

15-Apr-2025

1:27:45 PM

25

1293.50

CEUX

GENMAB A/S

15-Apr-2025

1:28:07 PM

28

1292.50

CEUX

GENMAB A/S

15-Apr-2025

1:28:08 PM

26

1292.00

XCSE

GENMAB A/S

15-Apr-2025

1:28:13 PM

3

1292.00

XCSE

GENMAB A/S

15-Apr-2025

1:28:13 PM

32

1291.50

CEUX

GENMAB A/S

15-Apr-2025

1:28:37 PM

30

1291.00

XCSE

GENMAB A/S

15-Apr-2025

1:28:37 PM

28

1290.50

CEUX

GENMAB A/S

15-Apr-2025

1:28:39 PM

25

1290.50

XCSE

GENMAB A/S

15-Apr-2025

1:29:03 PM

37

1291.50

XCSE

GENMAB A/S

15-Apr-2025

1:31:02 PM

69

1292.50

XCSE

GENMAB A/S

15-Apr-2025

1:31:02 PM

36

1292.50

CEUX

99

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

1:31:14 PM

12

1292.50

TQEX

GENMAB A/S

15-Apr-2025

1:31:14 PM

5

1292.50

TQEX

GENMAB A/S

15-Apr-2025

1:33:00 PM

84

1293.50

XCSE

GENMAB A/S

15-Apr-2025

1:33:00 PM

25

1293.50

TQEX

GENMAB A/S

15-Apr-2025

1:33:59 PM

2

1295.00

CEUX

GENMAB A/S

15-Apr-2025

1:37:07 PM

77

1295.50

XCSE

GENMAB A/S

15-Apr-2025

1:37:07 PM

9

1295.50

XCSE

GENMAB A/S

15-Apr-2025

1:37:07 PM

27

1295.50

TQEX

GENMAB A/S

15-Apr-2025

1:37:07 PM

34

1295.50

AQEU

GENMAB A/S

15-Apr-2025

1:37:30 PM

90

1295.50

XCSE

GENMAB A/S

15-Apr-2025

1:38:31 PM

45

1295.00

CEUX

GENMAB A/S

15-Apr-2025

1:39:45 PM

90

1295.50

XCSE

GENMAB A/S

15-Apr-2025

1:39:45 PM

53

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:39:55 PM

28

1296.00

AQEU

GENMAB A/S

15-Apr-2025

1:40:00 PM

17

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:40:26 PM

12

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:41:11 PM

4

1295.50

CEUX

GENMAB A/S

15-Apr-2025

1:41:21 PM

28

1295.00

AQEU

GENMAB A/S

15-Apr-2025

1:41:30 PM

51

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:41:30 PM

6

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:41:44 PM

25

1294.50

TQEX

GENMAB A/S

15-Apr-2025

1:43:51 PM

79

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:43:57 PM

9

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:46:07 PM

36

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:46:07 PM

20

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:46:07 PM

34

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:46:52 PM

36

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:46:52 PM

22

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:46:52 PM

42

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:47:33 PM

49

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:47:33 PM

35

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:47:33 PM

50

1294.50

XCSE

GENMAB A/S

15-Apr-2025

1:47:41 PM

27

1293.50

XCSE

GENMAB A/S

15-Apr-2025

1:47:41 PM

25

1294.00

TQEX

GENMAB A/S

15-Apr-2025

1:47:41 PM

26

1294.00

AQEU

GENMAB A/S

15-Apr-2025

1:47:41 PM

23

1293.00

AQEU

GENMAB A/S

15-Apr-2025

1:47:41 PM

42

1294.00

CEUX

GENMAB A/S

15-Apr-2025

1:47:55 PM

5

1293.00

CEUX

GENMAB A/S

15-Apr-2025

1:48:19 PM

30

1293.00

TQEX

GENMAB A/S

15-Apr-2025

1:48:19 PM

26

1293.00

CEUX

GENMAB A/S

15-Apr-2025

1:48:22 PM

84

1292.50

XCSE

GENMAB A/S

15-Apr-2025

1:48:24 PM

28

1292.00

CEUX

GENMAB A/S

15-Apr-2025

1:49:51 PM

89

1293.00

CEUX

100

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

1:50:52 PM

50

1292.50

XCSE

GENMAB A/S

15-Apr-2025

1:50:52 PM

36

1292.50

XCSE

GENMAB A/S

15-Apr-2025

1:51:36 PM

84

1291.00

XCSE

GENMAB A/S

15-Apr-2025

1:51:36 PM

58

1292.00

CEUX

GENMAB A/S

15-Apr-2025

1:52:01 PM

26

1291.00

TQEX

GENMAB A/S

15-Apr-2025

1:52:02 PM

30

1291.00

AQEU

GENMAB A/S

15-Apr-2025

1:54:12 PM

35

1293.00

XCSE

GENMAB A/S

15-Apr-2025

1:54:12 PM

19

1293.00

XCSE

GENMAB A/S

15-Apr-2025

1:54:12 PM

25

1292.50

AQEU

GENMAB A/S

15-Apr-2025

1:54:12 PM

8

1293.00

CEUX

GENMAB A/S

15-Apr-2025

1:54:12 PM

8

1293.00

CEUX

GENMAB A/S

15-Apr-2025

1:55:01 PM

1

1294.00

CEUX

GENMAB A/S

15-Apr-2025

1:56:41 PM

43

1293.00

XCSE

GENMAB A/S

15-Apr-2025

1:56:41 PM

25

1293.50

TQEX

GENMAB A/S

15-Apr-2025

1:56:41 PM

91

1293.50

CEUX

GENMAB A/S

15-Apr-2025

1:57:22 PM

28

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:57:22 PM

28

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:58:08 PM

27

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:58:09 PM

27

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:58:09 PM

27

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:58:09 PM

27

1294.00

XCSE

GENMAB A/S

15-Apr-2025

1:58:51 PM

43

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:00:11 PM

5

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:01:30 PM

35

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:01:30 PM

17

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:01:30 PM

37

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:01:30 PM

25

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:01:30 PM

25

1292.50

TQEX

GENMAB A/S

15-Apr-2025

2:01:30 PM

25

1292.50

AQEU

GENMAB A/S

15-Apr-2025

2:01:30 PM

58

1292.50

CEUX

GENMAB A/S

15-Apr-2025

2:01:30 PM

33

1292.50

CEUX

GENMAB A/S

15-Apr-2025

2:01:30 PM

36

1292.50

CEUX

GENMAB A/S

15-Apr-2025

2:01:44 PM

114

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:01:44 PM

83

1292.00

XCSE

GENMAB A/S

15-Apr-2025

2:02:19 PM

14

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:03:17 PM

4

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:03:17 PM

110

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:03:18 PM

39

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:03:18 PM

36

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:03:18 PM

39

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:03:18 PM

51

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:03:18 PM

22

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:03:33 PM

51

1294.00

XCSE

101

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

2:03:44 PM

7

1294.00

CEUX

GENMAB A/S

15-Apr-2025

2:03:47 PM

14

1294.00

CEUX

GENMAB A/S

15-Apr-2025

2:04:13 PM

39

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:04:33 PM

8

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:04:33 PM

80

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:04:33 PM

15

1294.00

CEUX

GENMAB A/S

15-Apr-2025

2:05:47 PM

28

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:05:47 PM

27

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:05:47 PM

34

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:05:47 PM

18

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:05:47 PM

7

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:06:51 PM

85

1295.00

CEUX

GENMAB A/S

15-Apr-2025

2:07:12 PM

14

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:07:12 PM

12

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:07:41 PM

76

1294.50

XCSE

GENMAB A/S

15-Apr-2025

2:07:41 PM

36

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:07:53 PM

45

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:07:53 PM

29

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:08:22 PM

34

1295.50

TQEX

GENMAB A/S

15-Apr-2025

2:08:22 PM

86

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:08:39 PM

114

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:08:39 PM

31

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:08:39 PM

13

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:08:40 PM

29

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:08:50 PM

91

1297.50

XCSE

GENMAB A/S

15-Apr-2025

2:09:21 PM

40

1297.50

AQEU

GENMAB A/S

15-Apr-2025

2:10:12 PM

33

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:10:12 PM

57

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:10:12 PM

34

1297.00

TQEX

GENMAB A/S

15-Apr-2025

2:10:12 PM

86

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:10:12 PM

36

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:10:13 PM

27

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:10:33 PM

12

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:11:23 PM

23

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:12:00 PM

11

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:12:31 PM

8

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:12:31 PM

42

1296.50

AQEU

GENMAB A/S

15-Apr-2025

2:13:41 PM

36

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:13:41 PM

2

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:13:41 PM

32

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:13:41 PM

12

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:13:50 PM

36

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:13:59 PM

16

1296.00

CEUX

102

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

2:14:29 PM

26

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:14:30 PM

14

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:14:30 PM

26

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:14:30 PM

13

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:14:30 PM

14

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:16:31 PM

26

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:16:31 PM

30

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:16:31 PM

13

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:16:31 PM

32

1296.00

TQEX

GENMAB A/S

15-Apr-2025

2:16:31 PM

72

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:16:31 PM

32

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:17:01 PM

4

1296.50

AQEU

GENMAB A/S

15-Apr-2025

2:17:11 PM

91

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:18:11 PM

22

1296.50

AQEU

GENMAB A/S

15-Apr-2025

2:18:12 PM

4

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:18:22 PM

114

1296.50

XCSE

GENMAB A/S

15-Apr-2025

2:19:40 PM

87

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:19:40 PM

36

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:19:40 PM

25

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:19:46 PM

82

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:20:55 PM

13

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:20:55 PM

15

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:20:56 PM

41

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:21:29 PM

24

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:22:21 PM

38

1295.50

AQEU

GENMAB A/S

15-Apr-2025

2:22:21 PM

25

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:23:52 PM

85

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:23:52 PM

37

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:23:52 PM

15

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:23:52 PM

16

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:23:52 PM

46

1296.00

XCSE

GENMAB A/S

15-Apr-2025

2:23:52 PM

27

1295.00

TQEX

GENMAB A/S

15-Apr-2025

2:23:52 PM

25

1295.50

AQEU

GENMAB A/S

15-Apr-2025

2:23:52 PM

36

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:23:52 PM

7

1296.00

CEUX

GENMAB A/S

15-Apr-2025

2:23:52 PM

85

1295.00

CEUX

GENMAB A/S

15-Apr-2025

2:23:53 PM

48

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:23:54 PM

15

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:23:54 PM

17

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:23:54 PM

32

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:24:05 PM

15

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

15

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

23

1295.50

XCSE

103

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

2:24:06 PM

13

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

14

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

13

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

16

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

34

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

17

1295.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:06 PM

38

1295.50

CEUX

GENMAB A/S

15-Apr-2025

2:24:07 PM

85

1295.00

XCSE

GENMAB A/S

15-Apr-2025

2:24:17 PM

35

1294.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:17 PM

13

1294.50

XCSE

GENMAB A/S

15-Apr-2025

2:24:17 PM

88

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:24:17 PM

25

1294.00

TQEX

GENMAB A/S

15-Apr-2025

2:24:17 PM

36

1294.50

AQEU

GENMAB A/S

15-Apr-2025

2:24:17 PM

89

1294.50

CEUX

GENMAB A/S

15-Apr-2025

2:24:17 PM

43

1293.50

CEUX

GENMAB A/S

15-Apr-2025

2:24:21 PM

47

1293.50

CEUX

GENMAB A/S

15-Apr-2025

2:24:28 PM

89

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:25:51 PM

67

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:25:51 PM

24

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:27:59 PM

26

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:27:59 PM

1

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:27:59 PM

15

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:27:59 PM

75

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:27:59 PM

9

1293.00

XCSE

GENMAB A/S

15-Apr-2025

2:27:59 PM

88

1293.50

CEUX

GENMAB A/S

15-Apr-2025

2:29:11 PM

87

1292.50

XCSE

GENMAB A/S

15-Apr-2025

2:29:11 PM

25

1292.50

TQEX

GENMAB A/S

15-Apr-2025

2:29:11 PM

58

1292.50

CEUX

GENMAB A/S

15-Apr-2025

2:29:11 PM

28

1292.50

CEUX

GENMAB A/S

15-Apr-2025

2:33:11 PM

80

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:33:11 PM

11

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:33:11 PM

43

1293.50

TQEX

GENMAB A/S

15-Apr-2025

2:33:11 PM

90

1293.50

CEUX

GENMAB A/S

15-Apr-2025

2:33:13 PM

88

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:33:13 PM

85

1293.50

CEUX

GENMAB A/S

15-Apr-2025

2:33:21 PM

13

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:33:21 PM

13

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:33:21 PM

14

1294.00

XCSE

GENMAB A/S

15-Apr-2025

2:34:52 PM

56

1293.50

XCSE

GENMAB A/S

15-Apr-2025

2:35:04 PM

41

1295.50

AQEU

GENMAB A/S

15-Apr-2025

2:36:41 PM

87

1294.50

XCSE

GENMAB A/S

15-Apr-2025

2:36:41 PM

7

1295.00

CEUX

GENMAB A/S

15-Apr-2025

2:38:22 PM

39

1297.00

XCSE

104

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

2:38:22 PM

14

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:22 PM

14

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:22 PM

46

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:22 PM

1

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:22 PM

39

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:22 PM

20

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:22 PM

6

1296.50

CEUX

GENMAB A/S

15-Apr-2025

2:38:23 PM

48

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:50 PM

87

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:50 PM

41

1297.00

TQEX

GENMAB A/S

15-Apr-2025

2:38:50 PM

84

1297.00

CEUX

GENMAB A/S

15-Apr-2025

2:38:52 PM

39

1297.00

XCSE

GENMAB A/S

15-Apr-2025

2:38:52 PM

14

1297.00

AQEU

GENMAB A/S

15-Apr-2025

2:39:28 PM

85

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:39:28 PM

35

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:39:28 PM

25

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:39:28 PM

35

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:39:28 PM

15

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:39:28 PM

87

1298.50

CEUX

GENMAB A/S

15-Apr-2025

2:39:46 PM

50

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:39:47 PM

36

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:40:01 PM

25

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:40:35 PM

114

1298.50

XCSE

GENMAB A/S

15-Apr-2025

2:40:35 PM

32

1298.50

CEUX

GENMAB A/S

15-Apr-2025

2:40:37 PM

89

1297.50

XCSE

GENMAB A/S

15-Apr-2025

2:40:37 PM

30

1298.00

TQEX

GENMAB A/S

15-Apr-2025

2:40:37 PM

40

1298.00

AQEU

GENMAB A/S

15-Apr-2025

2:40:37 PM

30

1297.50

CEUX

GENMAB A/S

15-Apr-2025

2:40:37 PM

54

1297.50

CEUX

GENMAB A/S

15-Apr-2025

2:40:39 PM

13

1297.00

TQEX

GENMAB A/S

15-Apr-2025

2:43:02 PM

34

1299.50

XCSE

GENMAB A/S

15-Apr-2025

2:43:02 PM

30

1299.50

XCSE

GENMAB A/S

15-Apr-2025

2:43:05 PM

149

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:43:05 PM

25

1300.00

TQEX

GENMAB A/S

15-Apr-2025

2:43:05 PM

52

1300.00

CEUX

GENMAB A/S

15-Apr-2025

2:43:46 PM

37

1300.50

TQEX

GENMAB A/S

15-Apr-2025

2:43:46 PM

64

1300.50

CEUX

GENMAB A/S

15-Apr-2025

2:43:46 PM

27

1300.50

CEUX

GENMAB A/S

15-Apr-2025

2:43:57 PM

85

1301.00

XCSE

GENMAB A/S

15-Apr-2025

2:43:57 PM

5

1301.00

AQEU

GENMAB A/S

15-Apr-2025

2:43:57 PM

29

1301.00

AQEU

GENMAB A/S

15-Apr-2025

2:43:59 PM

84

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:43:59 PM

1

1300.00

XCSE

105

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

2:43:59 PM

90

1300.50

CEUX

GENMAB A/S

15-Apr-2025

2:44:00 PM

36

1300.00

AQEU

GENMAB A/S

15-Apr-2025

2:44:04 PM

60

1299.50

CEUX

GENMAB A/S

15-Apr-2025

2:44:04 PM

27

1299.50

CEUX

GENMAB A/S

15-Apr-2025

2:44:25 PM

14

1299.50

CEUX

GENMAB A/S

15-Apr-2025

2:44:32 PM

72

1299.50

CEUX

GENMAB A/S

15-Apr-2025

2:44:40 PM

89

1299.00

XCSE

GENMAB A/S

15-Apr-2025

2:45:45 PM

90

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:46:27 PM

85

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:46:27 PM

25

1300.50

TQEX

GENMAB A/S

15-Apr-2025

2:47:38 PM

34

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:48:14 PM

34

1301.00

TQEX

GENMAB A/S

15-Apr-2025

2:48:14 PM

28

1301.00

AQEU

GENMAB A/S

15-Apr-2025

2:48:18 PM

52

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:49:03 PM

85

1300.50

CEUX

GENMAB A/S

15-Apr-2025

2:50:51 PM

91

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:50:51 PM

91

1300.50

CEUX

GENMAB A/S

15-Apr-2025

2:50:52 PM

15

1300.00

AQEU

GENMAB A/S

15-Apr-2025

2:50:55 PM

2

1300.00

AQEU

GENMAB A/S

15-Apr-2025

2:51:02 PM

10

1300.00

AQEU

GENMAB A/S

15-Apr-2025

2:51:03 PM

18

1299.00

AQEU

GENMAB A/S

15-Apr-2025

2:51:03 PM

38

1299.50

CEUX

GENMAB A/S

15-Apr-2025

2:51:13 PM

47

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:51:13 PM

35

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:51:13 PM

13

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:51:13 PM

15

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:51:13 PM

4

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:52:23 PM

42

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:52:23 PM

13

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:52:23 PM

2

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:52:23 PM

34

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:52:23 PM

14

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:52:23 PM

9

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:53:01 PM

90

1299.00

XCSE

GENMAB A/S

15-Apr-2025

2:53:45 PM

15

1299.50

TQEX

GENMAB A/S

15-Apr-2025

2:53:45 PM

87

1300.00

CEUX

GENMAB A/S

15-Apr-2025

2:53:45 PM

4

1300.00

CEUX

GENMAB A/S

15-Apr-2025

2:54:13 PM

6

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:54:13 PM

13

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:54:13 PM

88

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:54:34 PM

88

1300.00

CEUX

GENMAB A/S

15-Apr-2025

2:55:23 PM

21

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:55:23 PM

1

1300.50

XCSE

106

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

2:55:23 PM

2

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:57:11 PM

85

1300.00

XCSE

GENMAB A/S

15-Apr-2025

2:57:11 PM

21

1300.50

TQEX

GENMAB A/S

15-Apr-2025

2:57:11 PM

5

1300.50

TQEX

GENMAB A/S

15-Apr-2025

2:57:24 PM

88

1300.50

XCSE

GENMAB A/S

15-Apr-2025

2:58:51 PM

35

1301.00

XCSE

GENMAB A/S

15-Apr-2025

2:58:51 PM

26

1301.00

XCSE

GENMAB A/S

15-Apr-2025

2:58:51 PM

31

1301.00

AQEU

GENMAB A/S

15-Apr-2025

2:58:51 PM

84

1301.00

CEUX

GENMAB A/S

15-Apr-2025

2:59:25 PM

58

1301.50

XCSE

GENMAB A/S

15-Apr-2025

2:59:25 PM

17

1301.50

XCSE

GENMAB A/S

15-Apr-2025

2:59:25 PM

14

1301.50

XCSE

GENMAB A/S

15-Apr-2025

2:59:25 PM

43

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:00:49 PM

2

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:00:49 PM

1

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:00:49 PM

32

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:01:51 PM

84

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:51 PM

35

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:51 PM

20

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:51 PM

17

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:51 PM

42

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:51 PM

2

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:01:51 PM

89

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:01:52 PM

4

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:52 PM

35

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:52 PM

27

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:52 PM

16

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:01:52 PM

32

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:02:49 PM

47

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:02:49 PM

20

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:02:49 PM

24

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:02:49 PM

17

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:02:49 PM

2

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:02:53 PM

91

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:02:53 PM

28

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:02:53 PM

10

1299.50

TQEX

GENMAB A/S

15-Apr-2025

3:02:53 PM

25

1301.00

AQEU

GENMAB A/S

15-Apr-2025

3:02:53 PM

27

1300.00

AQEU

GENMAB A/S

15-Apr-2025

3:02:53 PM

15

1299.00

AQEU

GENMAB A/S

15-Apr-2025

3:02:53 PM

88

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:02:53 PM

84

1300.00

CEUX

GENMAB A/S

15-Apr-2025

3:02:54 PM

84

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:04:43 PM

81

1300.50

XCSE

107

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:05:19 PM

87

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:08:08 PM

12

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:08:30 PM

89

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:09:25 PM

71

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:10:19 PM

35

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:10:19 PM

7

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:10:26 PM

43

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:10:26 PM

25

1300.50

AQEU

GENMAB A/S

15-Apr-2025

3:10:26 PM

32

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:10:26 PM

90

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:11:01 PM

88

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:11:31 PM

22

1300.50

AQEU

GENMAB A/S

15-Apr-2025

3:11:31 PM

72

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:11:36 PM

19

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:11:43 PM

3

1300.50

AQEU

GENMAB A/S

15-Apr-2025

3:12:41 PM

84

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:13:14 PM

15

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:13:14 PM

16

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:13:51 PM

53

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:13:51 PM

37

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:13:51 PM

42

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:13:51 PM

90

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:15:22 PM

85

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:15:22 PM

90

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:16:12 PM

25

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:16:21 PM

64

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:16:45 PM

85

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:16:45 PM

56

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:18:02 PM

35

1302.50

AQEU

GENMAB A/S

15-Apr-2025

3:18:02 PM

30

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:18:23 PM

32

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:18:51 PM

38

1302.00

TQEX

GENMAB A/S

15-Apr-2025

3:19:37 PM

7

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:19:37 PM

13

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:19:37 PM

8

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:19:37 PM

1

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:19:37 PM

8

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:19:37 PM

7

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:19:43 PM

34

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:19:43 PM

16

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:19:43 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:19:43 PM

16

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:19:43 PM

7

1302.50

CEUX

108

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:19:43 PM

18

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:20:11 PM

3

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:20:11 PM

3

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:20:11 PM

19

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:21:01 PM

40

1302.50

TQEX

GENMAB A/S

15-Apr-2025

3:21:01 PM

16

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:21:01 PM

8

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:21:01 PM

31

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:21:04 PM

46

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

24

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

15

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

15

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

48

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

17

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

15

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

24

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:04 PM

32

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:21:05 PM

17

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:05 PM

16

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:05 PM

14

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:05 PM

67

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:05 PM

9

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:05 PM

14

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:06 PM

42

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:06 PM

49

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:06 PM

45

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:06 PM

12

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:21:15 PM

35

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:21:15 PM

14

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:21:15 PM

16

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:21:15 PM

24

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:21:15 PM

24

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:15 PM

1

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:21:15 PM

36

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:21:15 PM

75

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:22:20 PM

81

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:22:20 PM

9

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:22:20 PM

13

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:22:20 PM

7

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:22:20 PM

4

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:22:23 PM

36

1302.00

TQEX

GENMAB A/S

15-Apr-2025

3:22:37 PM

50

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:23:01 PM

37

1302.50

CEUX

109

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:23:14 PM

37

1302.50

AQEU

GENMAB A/S

15-Apr-2025

3:23:53 PM

49

1303.00

CEUX

GENMAB A/S

15-Apr-2025

3:23:53 PM

4

1303.00

CEUX

GENMAB A/S

15-Apr-2025

3:24:05 PM

114

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:24:05 PM

9

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:24:05 PM

36

1302.50

AQEU

GENMAB A/S

15-Apr-2025

3:24:05 PM

91

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:24:16 PM

89

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:24:17 PM

26

1302.50

AQEU

GENMAB A/S

15-Apr-2025

3:24:17 PM

84

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:25:11 PM

91

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:25:11 PM

87

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:25:11 PM

3

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:25:11 PM

1

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:25:11 PM

25

1303.00

AQEU

GENMAB A/S

15-Apr-2025

3:26:34 PM

47

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

35

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

26

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

6

1303.00

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

82

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

2

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

35

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

16

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

29

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:34 PM

4

1302.00

TQEX

GENMAB A/S

15-Apr-2025

3:26:34 PM

84

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:26:34 PM

25

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:26:34 PM

31

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:26:34 PM

8

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:26:34 PM

36

1303.00

CEUX

GENMAB A/S

15-Apr-2025

3:26:34 PM

8

1303.00

CEUX

GENMAB A/S

15-Apr-2025

3:26:34 PM

6

1303.00

CEUX

GENMAB A/S

15-Apr-2025

3:26:35 PM

16

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

26

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

16

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

14

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

26

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

57

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

14

1302.50

XCSE

110

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:26:35 PM

26

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

15

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:35 PM

41

1302.00

TQEX

GENMAB A/S

15-Apr-2025

3:26:36 PM

48

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

16

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

15

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

26

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

9

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

30

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:36 PM

14

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:37 PM

17

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:37 PM

26

1302.50

XCSE

GENMAB A/S

15-Apr-2025

3:26:57 PM

26

1302.50

AQEU

GENMAB A/S

15-Apr-2025

3:26:57 PM

84

1302.50

CEUX

GENMAB A/S

15-Apr-2025

3:27:21 PM

77

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:21 PM

9

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:26 PM

11

1302.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

13

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:50 PM

35

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:50 PM

14

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:50 PM

17

1302.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:50 PM

85

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

3

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:27:50 PM

2

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:27:50 PM

31

1301.50

AQEU

GENMAB A/S

15-Apr-2025

3:27:50 PM

89

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:27:51 PM

16

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:27:51 PM

9

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:27:52 PM

35

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:52 PM

23

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:52 PM

13

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:27:52 PM

77

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:00 PM

89

1300.50

XCSE

111

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:28:00 PM

5

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:28:00 PM

7

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:28:00 PM

5

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:28:00 PM

6

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:28:00 PM

11

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:28:00 PM

1

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:00 PM

4

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:00 PM

5

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:00 PM

6

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:00 PM

38

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:10 PM

35

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:28:13 PM

59

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:28:41 PM

62

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:29:11 PM

28

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:29:11 PM

31

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:30:00 PM

7

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:00 PM

14

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:00 PM

15

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:00 PM

15

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:00 PM

35

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:00 PM

31

1300.50

AQEU

GENMAB A/S

15-Apr-2025

3:30:00 PM

65

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:30:04 PM

91

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

12

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

13

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

35

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

46

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

8

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

6

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:04 PM

35

1301.00

TQEX

GENMAB A/S

15-Apr-2025

3:30:04 PM

76

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:30:11 PM

85

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:41 PM

25

1300.50

AQEU

GENMAB A/S

15-Apr-2025

3:30:52 PM

6

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

2

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

2

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

2

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

15

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

5

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

3

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

2

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

6

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:52 PM

63

1300.00

CEUX

112

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:30:53 PM

19

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:53 PM

27

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:30:53 PM

14

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:30:53 PM

14

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:31:01 PM

90

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:31:21 PM

28

1299.50

AQEU

GENMAB A/S

15-Apr-2025

3:31:22 PM

18

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:31:29 PM

86

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:31:29 PM

29

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:31:51 PM

88

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:31:51 PM

33

1299.50

TQEX

GENMAB A/S

15-Apr-2025

3:31:53 PM

27

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:31:53 PM

16

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:32:03 PM

17

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:32:03 PM

13

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:32:03 PM

12

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:32:03 PM

46

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:32:05 PM

3

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:05 PM

79

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:07 PM

45

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:07 PM

39

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:07 PM

32

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:32:22 PM

31

1301.50

TQEX

GENMAB A/S

15-Apr-2025

3:32:27 PM

88

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:27 PM

48

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:27 PM

20

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:27 PM

35

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:27 PM

11

1300.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:27 PM

86

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:27 PM

29

1301.00

AQEU

GENMAB A/S

15-Apr-2025

3:32:27 PM

26

1300.00

AQEU

GENMAB A/S

15-Apr-2025

3:32:27 PM

84

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:27 PM

86

1300.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

3

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

14

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

46

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

2

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

3

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

5

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

4

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

3

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

3

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

5

1299.50

XCSE

113

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:32:30 PM

3

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

7

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

16

1299.50

XCSE

GENMAB A/S

15-Apr-2025

3:32:30 PM

84

1300.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

12

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

5

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

8

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

7

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

6

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:30 PM

2

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:31 PM

17

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:31 PM

68

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:31 PM

47

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:32:32 PM

4

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:32:51 PM

89

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:02 PM

6

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:11 PM

35

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:11 PM

19

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:11 PM

17

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:11 PM

16

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

88

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

16

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

14

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

16

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

49

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

19

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:14 PM

28

1297.50

TQEX

GENMAB A/S

15-Apr-2025

3:33:14 PM

33

1298.00

AQEU

GENMAB A/S

15-Apr-2025

3:33:14 PM

89

1297.50

CEUX

GENMAB A/S

15-Apr-2025

3:33:31 PM

35

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:31 PM

13

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:31 PM

46

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:31 PM

17

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:31 PM

28

1298.00

AQEU

GENMAB A/S

15-Apr-2025

3:33:32 PM

48

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:32 PM

11

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:33:51 PM

87

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:34:01 PM

80

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:34:01 PM

9

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:34:01 PM

50

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:34:01 PM

12

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:34:19 PM

21

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:34:20 PM

54

1299.50

CEUX

114

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:34:39 PM

27

1301.50

TQEX

GENMAB A/S

15-Apr-2025

3:34:39 PM

11

1301.50

TQEX

GENMAB A/S

15-Apr-2025

3:34:39 PM

34

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:34:39 PM

54

1301.50

CEUX

GENMAB A/S

15-Apr-2025

3:34:51 PM

2

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:34:59 PM

36

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:35:00 PM

12

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:35:00 PM

31

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:35:00 PM

13

1302.00

CEUX

GENMAB A/S

15-Apr-2025

3:35:04 PM

83

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:04 PM

35

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:04 PM

48

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:04 PM

31

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:04 PM

30

1301.00

AQEU

GENMAB A/S

15-Apr-2025

3:35:05 PM

15

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

23

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

16

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

17

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

35

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

22

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

46

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

15

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

17

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

14

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

14

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

13

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

46

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:05 PM

16

1301.50

XCSE

GENMAB A/S

15-Apr-2025

3:35:13 PM

85

1301.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:13 PM

26

1301.00

AQEU

GENMAB A/S

15-Apr-2025

3:35:13 PM

32

1301.00

CEUX

GENMAB A/S

15-Apr-2025

3:35:33 PM

5

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

15

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

10

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

5

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

10

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

5

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

40

1300.00

XCSE

GENMAB A/S

15-Apr-2025

3:35:33 PM

38

1300.50

TQEX

GENMAB A/S

15-Apr-2025

3:35:33 PM

4

1299.50

TQEX

GENMAB A/S

15-Apr-2025

3:35:33 PM

2

1299.50

TQEX

GENMAB A/S

15-Apr-2025

3:35:33 PM

5

1299.50

TQEX

GENMAB A/S

15-Apr-2025

3:35:33 PM

26

1300.00

AQEU

115

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:35:33 PM

90

1300.50

CEUX

GENMAB A/S

15-Apr-2025

3:35:50 PM

23

1299.50

TQEX

GENMAB A/S

15-Apr-2025

3:35:50 PM

20

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:35:50 PM

64

1299.50

CEUX

GENMAB A/S

15-Apr-2025

3:35:51 PM

90

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:36:02 PM

91

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:36:02 PM

87

1298.00

CEUX

GENMAB A/S

15-Apr-2025

3:36:03 PM

41

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:36:03 PM

50

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:36:03 PM

88

1297.00

CEUX

GENMAB A/S

15-Apr-2025

3:36:03 PM

23

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:36:40 PM

89

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:37:01 PM

90

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:37:01 PM

25

1298.00

TQEX

GENMAB A/S

15-Apr-2025

3:37:01 PM

11

1298.00

CEUX

GENMAB A/S

15-Apr-2025

3:37:01 PM

77

1298.00

CEUX

GENMAB A/S

15-Apr-2025

3:37:21 PM

86

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:38:28 PM

86

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:38:29 PM

86

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:38:29 PM

35

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:38:29 PM

24

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:38:29 PM

46

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:38:29 PM

9

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:38:29 PM

25

1298.50

AQEU

GENMAB A/S

15-Apr-2025

3:38:29 PM

90

1298.00

CEUX

GENMAB A/S

15-Apr-2025

3:38:30 PM

31

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:38:31 PM

54

1298.50

XCSE

GENMAB A/S

15-Apr-2025

3:39:01 PM

2

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:06 PM

85

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:06 PM

26

1299.50

AQEU

GENMAB A/S

15-Apr-2025

3:39:10 PM

2

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:33 PM

56

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:43 PM

15

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:43 PM

25

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:53 PM

15

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:53 PM

25

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:53 PM

2

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:39:53 PM

46

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:40:13 PM

32

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:40:31 PM

25

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:40:32 PM

26

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:40:43 PM

3

1299.00

CEUX

GENMAB A/S

15-Apr-2025

3:40:51 PM

80

1299.00

XCSE

116

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:40:51 PM

7

1299.00

XCSE

GENMAB A/S

15-Apr-2025

3:40:52 PM

5

1299.00

AQEU

GENMAB A/S

15-Apr-2025

3:40:53 PM

30

1299.00

AQEU

GENMAB A/S

15-Apr-2025

3:40:56 PM

91

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

84

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

91

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

91

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

90

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

91

1292.50

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

86

1291.00

XCSE

GENMAB A/S

15-Apr-2025

3:40:56 PM

27

1298.00

TQEX

GENMAB A/S

15-Apr-2025

3:40:56 PM

26

1296.50

TQEX

GENMAB A/S

15-Apr-2025

3:40:56 PM

33

1295.50

TQEX

GENMAB A/S

15-Apr-2025

3:40:56 PM

35

1298.00

AQEU

GENMAB A/S

15-Apr-2025

3:40:56 PM

25

1297.00

AQEU

GENMAB A/S

15-Apr-2025

3:40:56 PM

85

1298.50

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

85

1297.00

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

84

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

66

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

23

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

86

1294.00

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

87

1292.50

CEUX

GENMAB A/S

15-Apr-2025

3:40:56 PM

28

1291.50

CEUX

GENMAB A/S

15-Apr-2025

3:40:57 PM

29

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:41:28 PM

49

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:41:28 PM

14

1294.50

CEUX

GENMAB A/S

15-Apr-2025

3:41:28 PM

20

1294.50

CEUX

GENMAB A/S

15-Apr-2025

3:41:30 PM

29

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:42:38 PM

91

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:42:38 PM

34

1294.00

TQEX

GENMAB A/S

15-Apr-2025

3:42:54 PM

68

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:42:54 PM

17

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:43:30 PM

87

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:43:51 PM

25

1295.00

TQEX

GENMAB A/S

15-Apr-2025

3:43:51 PM

27

1295.00

AQEU

GENMAB A/S

15-Apr-2025

3:43:51 PM

84

1295.00

CEUX

GENMAB A/S

15-Apr-2025

3:44:11 PM

1

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:44:11 PM

89

1294.50

CEUX

GENMAB A/S

15-Apr-2025

3:44:22 PM

91

1294.50

CEUX

GENMAB A/S

15-Apr-2025

3:44:31 PM

74

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:44:31 PM

12

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:44:31 PM

21

1294.00

TQEX

GENMAB A/S

15-Apr-2025

3:44:31 PM

12

1294.00

TQEX

117

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:44:51 PM

27

1294.00

AQEU

GENMAB A/S

15-Apr-2025

3:44:51 PM

25

1293.50

CEUX

GENMAB A/S

15-Apr-2025

3:45:04 PM

30

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:45:36 PM

84

1293.50

CEUX

GENMAB A/S

15-Apr-2025

3:45:36 PM

3

1293.50

CEUX

GENMAB A/S

15-Apr-2025

3:45:45 PM

47

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:45 PM

46

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:45 PM

13

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:45 PM

86

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

17

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

26

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

46

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

17

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

14

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

26

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

17

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:45:46 PM

46

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:46:07 PM

6

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:07 PM

2

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:07 PM

3

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:07 PM

77

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:07 PM

30

1293.50

AQEU

GENMAB A/S

15-Apr-2025

3:46:07 PM

88

1293.00

CEUX

GENMAB A/S

15-Apr-2025

3:46:19 PM

88

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:19 PM

3

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:19 PM

89

1293.00

CEUX

GENMAB A/S

15-Apr-2025

3:46:47 PM

16

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:47 PM

14

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:47 PM

14

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:46:47 PM

46

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:47:31 PM

28

1295.50

TQEX

GENMAB A/S

15-Apr-2025

3:47:31 PM

91

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:47:32 PM

21

1296.00

TQEX

GENMAB A/S

15-Apr-2025

3:47:32 PM

81

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:47:32 PM

7

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:48:16 PM

28

1297.00

TQEX

GENMAB A/S

15-Apr-2025

3:48:41 PM

86

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:48:41 PM

91

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:02 PM

14

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:49:02 PM

46

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:49:02 PM

21

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:49:02 PM

4

1296.00

TQEX

GENMAB A/S

15-Apr-2025

3:49:02 PM

34

1296.50

AQEU

118

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:49:21 PM

2

1296.00

TQEX

GENMAB A/S

15-Apr-2025

3:49:21 PM

35

1296.50

AQEU

GENMAB A/S

15-Apr-2025

3:49:21 PM

86

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:38 PM

1

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:43 PM

2

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:44 PM

1

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:48 PM

1

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:48 PM

2

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:48 PM

81

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:51 PM

90

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:49:51 PM

42

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:49:51 PM

12

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:49:51 PM

25

1295.50

AQEU

GENMAB A/S

15-Apr-2025

3:49:52 PM

1

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:49:55 PM

46

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:49:58 PM

114

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:50:01 PM

86

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:50:02 PM

15

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:50:02 PM

25

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:50:35 PM

25

1297.00

TQEX

GENMAB A/S

15-Apr-2025

3:51:22 PM

41

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:51:22 PM

48

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:51:22 PM

3

1297.50

TQEX

GENMAB A/S

15-Apr-2025

3:51:22 PM

22

1297.50

TQEX

GENMAB A/S

15-Apr-2025

3:51:22 PM

88

1297.50

CEUX

GENMAB A/S

15-Apr-2025

3:51:37 PM

12

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:51:37 PM

18

1297.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:21 PM

76

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:21 PM

9

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:21 PM

46

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:21 PM

38

1298.00

TQEX

GENMAB A/S

15-Apr-2025

3:52:21 PM

7

1298.00

AQEU

GENMAB A/S

15-Apr-2025

3:52:27 PM

50

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

35

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

22

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

7

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

39

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

17

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

14

1298.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:27 PM

36

1298.00

AQEU

GENMAB A/S

15-Apr-2025

3:52:27 PM

89

1297.50

CEUX

GENMAB A/S

15-Apr-2025

3:52:28 PM

24

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:28 PM

24

1297.00

XCSE

119

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:52:28 PM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:28 PM

25

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:28 PM

16

1297.00

TQEX

GENMAB A/S

15-Apr-2025

3:52:28 PM

10

1297.00

TQEX

GENMAB A/S

15-Apr-2025

3:52:28 PM

5

1297.00

TQEX

GENMAB A/S

15-Apr-2025

3:52:28 PM

25

1297.00

AQEU

GENMAB A/S

15-Apr-2025

3:52:28 PM

1

1297.50

CEUX

GENMAB A/S

15-Apr-2025

3:52:28 PM

90

1297.50

CEUX

GENMAB A/S

15-Apr-2025

3:52:30 PM

46

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

17

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

35

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

16

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

16

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

59

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

16

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:30 PM

1

1297.00

AQEU

GENMAB A/S

15-Apr-2025

3:52:30 PM

12

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:52:30 PM

31

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:52:31 PM

14

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:31 PM

23

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:32 PM

87

1297.00

CEUX

GENMAB A/S

15-Apr-2025

3:52:35 PM

35

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

28

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

35

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

1

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

50

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

17

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

28

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:35 PM

4

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:52:36 PM

17

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:36 PM

28

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:36 PM

14

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:36 PM

55

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:36 PM

37

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:52:52 PM

14

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:05 PM

90

1296.00

XCSE

GENMAB A/S

15-Apr-2025

3:53:05 PM

35

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:05 PM

46

1296.00

XCSE

GENMAB A/S

15-Apr-2025

3:53:05 PM

33

1296.00

XCSE

GENMAB A/S

15-Apr-2025

3:53:05 PM

38

1296.00

TQEX

120

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:53:05 PM

30

1296.00

AQEU

GENMAB A/S

15-Apr-2025

3:53:05 PM

11

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:53:05 PM

74

1296.50

CEUX

GENMAB A/S

15-Apr-2025

3:53:05 PM

88

1295.50

CEUX

GENMAB A/S

15-Apr-2025

3:53:06 PM

29

1295.00

CEUX

GENMAB A/S

15-Apr-2025

3:53:40 PM

18

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:51 PM

91

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:52 PM

49

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:52 PM

46

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:52 PM

10

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:53:52 PM

34

1296.50

AQEU

GENMAB A/S

15-Apr-2025

3:53:54 PM

41

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:53:54 PM

5

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:54:01 PM

10

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:54:18 PM

22

1296.50

TQEX

GENMAB A/S

15-Apr-2025

3:54:18 PM

7

1296.50

TQEX

GENMAB A/S

15-Apr-2025

3:54:21 PM

1

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:54:47 PM

87

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:55:24 PM

26

1296.50

TQEX

GENMAB A/S

15-Apr-2025

3:55:27 PM

25

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:55:30 PM

35

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:30 PM

22

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:30 PM

15

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:30 PM

42

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:30 PM

89

1297.00

CEUX

GENMAB A/S

15-Apr-2025

3:55:31 PM

17

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:31 PM

46

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:31 PM

22

1297.00

XCSE

GENMAB A/S

15-Apr-2025

3:55:31 PM

60

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:01 PM

87

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:04 PM

49

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:04 PM

35

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:04 PM

16

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:04 PM

85

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:25 PM

49

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:33 PM

67

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:33 PM

21

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:53 PM

48

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:53 PM

29

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:56:53 PM

27

1296.00

TQEX

GENMAB A/S

15-Apr-2025

3:56:53 PM

14

1296.00

AQEU

GENMAB A/S

15-Apr-2025

3:56:53 PM

18

1296.00

AQEU

GENMAB A/S

15-Apr-2025

3:56:53 PM

5

1296.00

CEUX

121

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:56:53 PM

79

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:57:03 PM

13

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:57:03 PM

7

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:57:03 PM

59

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:57:03 PM

11

1296.50

XCSE

GENMAB A/S

15-Apr-2025

3:57:17 PM

27

1296.00

TQEX

GENMAB A/S

15-Apr-2025

3:57:17 PM

3

1296.00

TQEX

GENMAB A/S

15-Apr-2025

3:57:17 PM

88

1296.00

CEUX

GENMAB A/S

15-Apr-2025

3:57:21 PM

60

1295.50

XCSE

GENMAB A/S

15-Apr-2025

3:57:51 PM

5

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:57:51 PM

31

1295.00

AQEU

GENMAB A/S

15-Apr-2025

3:57:51 PM

53

1295.00

CEUX

GENMAB A/S

15-Apr-2025

3:58:15 PM

35

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:15 PM

28

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:15 PM

46

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:15 PM

5

1295.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:15 PM

34

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:21 PM

48

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:21 PM

27

1294.50

TQEX

GENMAB A/S

15-Apr-2025

3:58:42 PM

85

1294.50

CEUX

GENMAB A/S

15-Apr-2025

3:58:44 PM

48

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:44 PM

35

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:44 PM

15

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:44 PM

16

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:46 PM

25

1294.00

AQEU

GENMAB A/S

15-Apr-2025

3:58:54 PM

35

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

17

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

14

1294.00

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

9

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

27

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

12

1294.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

24

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:58:54 PM

32

1294.00

AQEU

GENMAB A/S

15-Apr-2025

3:58:54 PM

32

1293.50

CEUX

GENMAB A/S

15-Apr-2025

3:58:54 PM

31

1293.50

CEUX

GENMAB A/S

15-Apr-2025

3:59:08 PM

61

1293.50

XCSE

GENMAB A/S

15-Apr-2025

3:59:08 PM

28

1293.50

CEUX

GENMAB A/S

15-Apr-2025

3:59:20 PM

87

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:59:20 PM

31

1292.50

TQEX

GENMAB A/S

15-Apr-2025

3:59:20 PM

90

1292.50

CEUX

GENMAB A/S

15-Apr-2025

3:59:21 PM

25

1292.50

AQEU

GENMAB A/S

15-Apr-2025

3:59:41 PM

42

1293.00

XCSE

GENMAB A/S

15-Apr-2025

3:59:46 PM

36

1292.50

XCSE

122

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

3:59:46 PM

90

1292.00

XCSE

GENMAB A/S

15-Apr-2025

3:59:46 PM

82

1292.50

CEUX

GENMAB A/S

15-Apr-2025

3:59:46 PM

7

1292.50

CEUX

GENMAB A/S

15-Apr-2025

3:59:59 PM

64

1291.50

XCSE

GENMAB A/S

15-Apr-2025

3:59:59 PM

27

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:00:14 PM

85

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:00:21 PM

89

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:00:48 PM

90

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:00:58 PM

37

1292.50

AQEU

GENMAB A/S

15-Apr-2025

4:01:11 PM

31

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:01:11 PM

80

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:01:11 PM

4

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:01:12 PM

71

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:01:12 PM

14

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:01:18 PM

20

1291.00

TQEX

GENMAB A/S

15-Apr-2025

4:01:18 PM

17

1291.00

TQEX

GENMAB A/S

15-Apr-2025

4:01:18 PM

84

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:01:19 PM

84

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:01:28 PM

85

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:01:45 PM

77

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:01:45 PM

7

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:02:00 PM

87

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:02:00 PM

85

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:02:00 PM

88

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:02:14 PM

86

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:02:14 PM

46

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:02:24 PM

72

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:02:24 PM

52

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:02:24 PM

25

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:02:57 PM

27

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:03:00 PM

81

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:03:20 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:03:20 PM

73

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:03:20 PM

19

1290.00

TQEX

GENMAB A/S

15-Apr-2025

4:03:20 PM

16

1290.00

TQEX

GENMAB A/S

15-Apr-2025

4:03:23 PM

31

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:03:23 PM

25

1289.50

AQEU

GENMAB A/S

15-Apr-2025

4:03:24 PM

88

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:03:24 PM

28

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:03:24 PM

8

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:03:26 PM

86

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:03:26 PM

2

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:03:53 PM

87

1288.00

XCSE

123

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:03:53 PM

37

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:03:53 PM

15

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:04:13 PM

44

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:04:17 PM

22

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:04:17 PM

14

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:04:17 PM

34

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:04:22 PM

88

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:04:22 PM

36

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:04:34 PM

87

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:04:34 PM

2

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:04:34 PM

26

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:04:35 PM

36

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:05:01 PM

87

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:05:13 PM

27

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:05:13 PM

11

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:05:22 PM

44

1286.00

CEUX

GENMAB A/S

15-Apr-2025

4:05:23 PM

69

1285.50

XCSE

GENMAB A/S

15-Apr-2025

4:05:23 PM

19

1285.50

XCSE

GENMAB A/S

15-Apr-2025

4:05:37 PM

50

1285.00

XCSE

GENMAB A/S

15-Apr-2025

4:05:37 PM

39

1285.00

XCSE

GENMAB A/S

15-Apr-2025

4:05:37 PM

27

1285.00

CEUX

GENMAB A/S

15-Apr-2025

4:06:29 PM

35

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:06:29 PM

29

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:06:29 PM

46

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:06:30 PM

85

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:06:31 PM

100

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:06:46 PM

36

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:07:01 PM

89

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:07:01 PM

77

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:07:02 PM

32

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:07:31 PM

89

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:07:31 PM

33

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:08:20 PM

46

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:08:20 PM

29

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:08:20 PM

52

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:08:20 PM

32

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:08:20 PM

36

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:08:38 PM

27

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:08:51 PM

84

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:08:53 PM

32

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:09:02 PM

35

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:02 PM

13

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:02 PM

32

1288.50

CEUX

124

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:09:03 PM

35

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:03 PM

28

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:03 PM

46

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:03 PM

40

1288.00

TQEX

GENMAB A/S

15-Apr-2025

4:09:03 PM

66

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:09:03 PM

21

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:09:03 PM

42

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:09:15 PM

35

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:09:15 PM

15

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:09:15 PM

46

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:09:33 PM

49

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:33 PM

35

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:33 PM

16

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:50 PM

50

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:50 PM

86

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:09:50 PM

87

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

2

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

3

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

5

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

15

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

10

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

2

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

7

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

2

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

24

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

7

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:09:50 PM

3

1289.50

AQEU

GENMAB A/S

15-Apr-2025

4:09:56 PM

90

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

16

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:10:22 PM

34

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:10:22 PM

6

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

18

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

9

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

5

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

7

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

19

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

2

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

2

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:22 PM

9

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:10:23 PM

15

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:10:23 PM

10

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:10:23 PM

89

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:10:51 PM

48

1292.00

XCSE

125

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:10:51 PM

15

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:10:51 PM

62

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:11:04 PM

14

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:11:07 PM

2

1292.50

TQEX

GENMAB A/S

15-Apr-2025

4:11:07 PM

3

1292.50

TQEX

GENMAB A/S

15-Apr-2025

4:11:26 PM

64

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:11:26 PM

26

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:11:26 PM

4

1292.50

TQEX

GENMAB A/S

15-Apr-2025

4:11:26 PM

24

1292.50

TQEX

GENMAB A/S

15-Apr-2025

4:11:26 PM

24

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:11:26 PM

8

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:11:26 PM

2

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:11:26 PM

25

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:11:26 PM

3

1292.50

AQEU

GENMAB A/S

15-Apr-2025

4:11:26 PM

34

1292.50

AQEU

GENMAB A/S

15-Apr-2025

4:11:51 PM

14

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:11:51 PM

16

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:11:52 PM

18

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:11:52 PM

14

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:11:52 PM

18

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:11:52 PM

14

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:12:11 PM

85

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:12:11 PM

70

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:12:11 PM

28

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:12:11 PM

16

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:12:11 PM

27

1292.00

TQEX

GENMAB A/S

15-Apr-2025

4:12:11 PM

81

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:12:11 PM

42

1293.00

AQEU

GENMAB A/S

15-Apr-2025

4:12:12 PM

64

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:12:12 PM

20

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:12:30 PM

89

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:12:30 PM

76

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:12:49 PM

59

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:12:49 PM

42

1292.50

TQEX

GENMAB A/S

15-Apr-2025

4:12:49 PM

54

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:13:27 PM

15

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:13:27 PM

2

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:13:27 PM

8

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:13:27 PM

3

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:27 PM

4

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:27 PM

12

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:28 PM

16

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:28 PM

10

1293.00

CEUX

126

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:13:28 PM

20

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:28 PM

10

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:28 PM

10

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:28 PM

10

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:28 PM

6

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:28 PM

3

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:13:43 PM

17

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:43 PM

14

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:43 PM

20

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:43 PM

35

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:43 PM

28

1293.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:45 PM

60

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:13:45 PM

34

1293.00

CEUX

GENMAB A/S

15-Apr-2025

4:14:07 PM

65

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:14:12 PM

9

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:14:12 PM

75

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:14:19 PM

57

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:14:24 PM

6

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:24 PM

20

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:24 PM

20

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:24 PM

9

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:24 PM

33

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:34 PM

3

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:14:41 PM

42

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:41 PM

32

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:41 PM

23

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:14:41 PM

8

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:14:46 PM

31

1290.00

AQEU

GENMAB A/S

15-Apr-2025

4:14:54 PM

91

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:14:54 PM

37

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:15:24 PM

79

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:15:34 PM

28

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:15:51 PM

2

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:15:51 PM

3

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:15:51 PM

7

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:15:51 PM

8

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:15:51 PM

65

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:15:51 PM

10

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:15:51 PM

24

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:15:51 PM

5

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:15:51 PM

10

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:15:51 PM

40

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:15:51 PM

10

1289.50

CEUX

127

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:15:51 PM

5

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:15:51 PM

3

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:16:25 PM

2

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:16:25 PM

68

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:16:30 PM

114

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:16:32 PM

4

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:16:32 PM

7

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:16:32 PM

10

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:16:32 PM

3

1291.00

AQEU

GENMAB A/S

15-Apr-2025

4:16:32 PM

5

1291.00

AQEU

GENMAB A/S

15-Apr-2025

4:16:32 PM

20

1291.00

AQEU

GENMAB A/S

15-Apr-2025

4:16:43 PM

1

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:16:49 PM

15

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:16:49 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:16:49 PM

18

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:16:49 PM

15

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:16:49 PM

9

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:17:15 PM

85

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:17:15 PM

4

1291.00

TQEX

GENMAB A/S

15-Apr-2025

4:17:15 PM

35

1291.00

TQEX

GENMAB A/S

15-Apr-2025

4:17:15 PM

67

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:17:15 PM

4

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:17:30 PM

84

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:17:30 PM

38

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:17:31 PM

84

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:17:31 PM

47

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:17:34 PM

91

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:17:34 PM

37

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:17:35 PM

85

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:17:42 PM

26

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:17:49 PM

38

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:17:49 PM

4

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:17:57 PM

26

1285.50

XCSE

GENMAB A/S

15-Apr-2025

4:17:57 PM

25

1285.50

CEUX

GENMAB A/S

15-Apr-2025

4:17:57 PM

25

1285.50

AQEU

GENMAB A/S

15-Apr-2025

4:18:00 PM

43

1285.00

CEUX

GENMAB A/S

15-Apr-2025

4:18:06 PM

28

1285.50

XCSE

GENMAB A/S

15-Apr-2025

4:18:43 PM

47

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:18:49 PM

39

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:18:57 PM

1

1286.00

AQEU

GENMAB A/S

15-Apr-2025

4:18:57 PM

24

1286.00

AQEU

GENMAB A/S

15-Apr-2025

4:19:03 PM

3

1285.50

XCSE

GENMAB A/S

15-Apr-2025

4:19:03 PM

27

1285.50

CEUX

128

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:19:21 PM

31

1284.50

XCSE

GENMAB A/S

15-Apr-2025

4:19:21 PM

26

1284.50

CEUX

GENMAB A/S

15-Apr-2025

4:19:33 PM

15

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:19:33 PM

49

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:19:34 PM

29

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:19:51 PM

28

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:19:51 PM

5

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:19:51 PM

57

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:20:02 PM

17

1284.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:02 PM

10

1284.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:02 PM

6

1284.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:02 PM

15

1284.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:16 PM

90

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:20:16 PM

31

1284.50

XCSE

GENMAB A/S

15-Apr-2025

4:20:18 PM

41

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

8

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

3

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

8

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

3

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

3

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

3

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

2

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

2

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

7

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

3

1283.50

CEUX

GENMAB A/S

15-Apr-2025

4:20:18 PM

45

1284.00

AQEU

GENMAB A/S

15-Apr-2025

4:20:34 PM

24

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:20:34 PM

15

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:20:34 PM

52

1284.00

XCSE

GENMAB A/S

15-Apr-2025

4:20:34 PM

26

1284.00

CEUX

GENMAB A/S

15-Apr-2025

4:20:51 PM

36

1284.50

CEUX

GENMAB A/S

15-Apr-2025

4:21:10 PM

30

1285.50

CEUX

GENMAB A/S

15-Apr-2025

4:21:13 PM

48

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:21:13 PM

35

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:21:13 PM

17

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:21:25 PM

19

1285.50

CEUX

GENMAB A/S

15-Apr-2025

4:21:25 PM

6

1285.50

CEUX

GENMAB A/S

15-Apr-2025

4:21:54 PM

88

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:21:54 PM

10

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:21:54 PM

20

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:21:54 PM

13

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:21:54 PM

5

1286.00

AQEU

GENMAB A/S

15-Apr-2025

4:21:54 PM

20

1286.00

AQEU

129

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:21:54 PM

6

1286.00

AQEU

GENMAB A/S

15-Apr-2025

4:21:54 PM

5

1286.00

AQEU

GENMAB A/S

15-Apr-2025

4:21:54 PM

2

1286.00

AQEU

GENMAB A/S

15-Apr-2025

4:22:03 PM

3

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:03 PM

6

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:03 PM

20

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:03 PM

5

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:03 PM

17

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:03 PM

5

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:13 PM

3

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:22:23 PM

2

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:22:38 PM

62

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:22:38 PM

29

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:22:39 PM

20

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:22:48 PM

1

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:22:53 PM

5

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:22:53 PM

24

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:22:54 PM

114

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:23:14 PM

34

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:23:14 PM

13

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:23:14 PM

57

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:23:49 PM

62

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:23:49 PM

89

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:24:02 PM

4

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:24:02 PM

8

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:24:02 PM

2

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:24:02 PM

11

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:24:02 PM

3

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:24:02 PM

22

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:24:02 PM

2

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:24:02 PM

68

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:24:02 PM

16

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:24:02 PM

20

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:24:41 PM

21

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:24:41 PM

91

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:24:41 PM

32

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:25:32 PM

57

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:32 PM

29

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:32 PM

18

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:32 PM

10

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:32 PM

59

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:32 PM

11

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:25:38 PM

45

1289.00

XCSE

130

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:25:40 PM

5

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:57 PM

30

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:57 PM

57

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:57 PM

18

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:57 PM

9

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:57 PM

2

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:25:57 PM

16

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:25:57 PM

2

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:25:57 PM

20

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:25:57 PM

36

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:25:57 PM

7

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:25:57 PM

64

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:25:58 PM

47

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:58 PM

15

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:25:58 PM

52

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:26:03 PM

10

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:26:08 PM

37

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:26:08 PM

64

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:26:08 PM

24

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:26:08 PM

3

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:26:17 PM

28

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:26:17 PM

59

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:26:17 PM

27

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:26:17 PM

39

1287.50

AQEU

GENMAB A/S

15-Apr-2025

4:27:06 PM

114

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:27:06 PM

59

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:27:09 PM

30

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:27:09 PM

2

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:27:09 PM

32

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:27:09 PM

5

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:27:28 PM

38

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:27:29 PM

26

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:27:41 PM

3

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:27:58 PM

90

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:28:00 PM

36

1289.00

AQEU

GENMAB A/S

15-Apr-2025

4:28:19 PM

81

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:28:52 PM

86

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:52 PM

10

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:52 PM

10

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:52 PM

15

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:52 PM

13

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:52 PM

17

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:52 PM

15

1289.50

XCSE

131

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:28:52 PM

10

1289.50

TQEX

GENMAB A/S

15-Apr-2025

4:28:52 PM

34

1289.50

TQEX

GENMAB A/S

15-Apr-2025

4:28:52 PM

1

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:28:58 PM

89

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

18

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

18

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

4

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

2

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

5

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

3

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

3

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

3

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

10

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

35

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:28:58 PM

13

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:29:21 PM

45

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:29:21 PM

36

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:29:21 PM

7

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:29:21 PM

6

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

46

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:29:37 PM

15

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:29:37 PM

18

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:29:37 PM

57

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:29:37 PM

17

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:29:37 PM

7

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:29:37 PM

4

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

8

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

7

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

5

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

3

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

23

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:29:37 PM

58

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:30:02 PM

45

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:30:02 PM

31

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:30:03 PM

55

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:30:15 PM

8

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:30:24 PM

14

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:30:28 PM

47

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:30:28 PM

7

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:30:29 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:30:33 PM

82

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:30:33 PM

5

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:30:33 PM

70

1286.50

CEUX

132

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:30:33 PM

21

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:31:00 PM

32

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:31:12 PM

57

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:31:12 PM

15

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:31:12 PM

15

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:31:12 PM

18

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:31:12 PM

9

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:31:12 PM

15

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:31:12 PM

10

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:31:12 PM

15

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:31:12 PM

38

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:31:21 PM

13

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:31:51 PM

91

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:31:51 PM

2

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:31:51 PM

43

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:32:02 PM

13

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:32:02 PM

20

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:32:02 PM

2

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:32:11 PM

32

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:32:12 PM

35

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:18 PM

35

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:32:18 PM

90

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:36 PM

3

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:36 PM

4

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:32:36 PM

36

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:32:36 PM

8

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:32:36 PM

14

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:32:36 PM

11

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:32:38 PM

48

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:38 PM

17

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:38 PM

14

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:38 PM

17

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:38 PM

18

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:43 PM

48

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:43 PM

1

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:32:43 PM

36

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:32:43 PM

2

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:33:28 PM

87

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

4

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

5

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

5

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

6

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

3

1287.50

XCSE

133

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:34:08 PM

2

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

15

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

3

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

16

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:34:08 PM

22

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:34:08 PM

4

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

36

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

8

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

8

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

26

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

1

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

32

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

10

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

22

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:08 PM

25

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:34:20 PM

50

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

10

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

5

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

10

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

5

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

5

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

5

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:20 PM

15

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:34:20 PM

10

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:34:21 PM

15

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

15

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

57

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

27

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

18

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

24

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

15

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:21 PM

15

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:34:47 PM

16

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:47 PM

26

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:47 PM

18

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:47 PM

34

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:47 PM

20

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:47 PM

32

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:47 PM

59

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:48 PM

47

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:48 PM

16

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:48 PM

17

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:48 PM

15

1288.00

XCSE

134

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:34:48 PM

14

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:48 PM

32

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:34:49 PM

3

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:49 PM

5

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:49 PM

11

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

14

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

3

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

4

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

4

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

6

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

15

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

5

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:49 PM

5

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:34:55 PM

32

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:34:55 PM

3

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:55 PM

20

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:34:55 PM

6

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:35:03 PM

34

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:35:03 PM

34

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:35:11 PM

79

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:35:11 PM

2

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:35:11 PM

31

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:35:40 PM

31

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:35:41 PM

26

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:35:41 PM

14

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:36:03 PM

4

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:03 PM

57

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:03 PM

2

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:36:03 PM

4

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:03 PM

3

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:03 PM

22

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:03 PM

25

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:03 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:14 PM

74

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:14 PM

4

1288.00

TQEX

GENMAB A/S

15-Apr-2025

4:36:14 PM

21

1288.00

TQEX

GENMAB A/S

15-Apr-2025

4:36:14 PM

7

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:14 PM

27

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:14 PM

2

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:36:14 PM

3

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:36:15 PM

9

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:15 PM

9

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:15 PM

7

1288.00

XCSE

135

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:36:15 PM

21

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:36:17 PM

65

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:17 PM

7

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:17 PM

10

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:17 PM

12

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:17 PM

3

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:17 PM

7

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:17 PM

12

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:36:36 PM

39

1288.50

CEUX

GENMAB A/S

15-Apr-2025

4:36:37 PM

37

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:43 PM

45

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:36:49 PM

47

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:36:49 PM

28

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:36:50 PM

18

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:36:50 PM

28

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:37:11 PM

24

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:37:11 PM

28

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:37:11 PM

7

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:37:21 PM

74

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:21 PM

9

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:25 PM

3

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:25 PM

2

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:25 PM

11

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:25 PM

12

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:35 PM

45

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:37:35 PM

10

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:37:35 PM

26

1286.00

CEUX

GENMAB A/S

15-Apr-2025

4:37:39 PM

78

1286.00

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

12

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

2

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

3

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

3

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

8

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

3

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

14

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

25

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

9

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

8

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:38:10 PM

4

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:38:10 PM

9

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:38:10 PM

4

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:38:10 PM

4

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:38:10 PM

7

1286.00

TQEX

136

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:38:31 PM

15

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:38:31 PM

36

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:38:31 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:38:31 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:39:01 PM

1

1286.00

TQEX

GENMAB A/S

15-Apr-2025

4:39:01 PM

69

1286.00

CEUX

GENMAB A/S

15-Apr-2025

4:39:01 PM

36

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:39:01 PM

3

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:39:01 PM

32

1286.50

AQEU

GENMAB A/S

15-Apr-2025

4:39:34 PM

8

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:34 PM

35

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:34 PM

16

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:34 PM

15

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:34 PM

48

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:34 PM

15

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:39:34 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:39:34 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:39:35 PM

15

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:35 PM

19

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:35 PM

17

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:36 PM

17

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:36 PM

16

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:36 PM

7

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:39:36 PM

7

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:39:41 PM

15

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:41 PM

21

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:41 PM

57

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:41 PM

15

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:39:59 PM

4

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:39:59 PM

2

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:39:59 PM

5

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:39:59 PM

62

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:39:59 PM

2

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:03 PM

29

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:03 PM

19

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:40:03 PM

7

1287.50

TQEX

GENMAB A/S

15-Apr-2025

4:40:03 PM

3

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:03 PM

76

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:03 PM

5

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:03 PM

20

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:03 PM

4

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:03 PM

18

1287.50

AQEU

GENMAB A/S

15-Apr-2025

4:40:03 PM

3

1287.50

AQEU

137

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:40:03 PM

3

1287.50

AQEU

GENMAB A/S

15-Apr-2025

4:40:03 PM

2

1287.50

AQEU

GENMAB A/S

15-Apr-2025

4:40:12 PM

15

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:12 PM

21

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:12 PM

57

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:12 PM

15

1287.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

15

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

15

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

25

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

57

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

2

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

78

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

11

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:40:27 PM

10

1286.50

TQEX

GENMAB A/S

15-Apr-2025

4:40:27 PM

36

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:40:27 PM

5

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:27 PM

15

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:27 PM

3

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:27 PM

10

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:27 PM

2

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:40:27 PM

45

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:41:02 PM

85

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:41:15 PM

36

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:41:15 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:41:15 PM

21

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:41:31 PM

35

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:41:43 PM

7

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:41:43 PM

6

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:41:43 PM

11

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:41:43 PM

40

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:42:01 PM

27

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:01 PM

7

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:01 PM

7

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:01 PM

17

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:01 PM

35

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:01 PM

11

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:02 PM

8

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:02 PM

7

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:02 PM

13

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:07 PM

6

1286.50

CEUX

GENMAB A/S

15-Apr-2025

4:42:07 PM

10

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:42:07 PM

10

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:42:07 PM

10

1287.00

AQEU

138

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:42:07 PM

4

1287.00

AQEU

GENMAB A/S

15-Apr-2025

4:42:16 PM

8

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:42:16 PM

25

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:42:16 PM

25

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:42:21 PM

66

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:42:29 PM

10

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:29 PM

6

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:29 PM

2

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:29 PM

3

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:29 PM

6

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:29 PM

5

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:29 PM

1

1287.00

TQEX

GENMAB A/S

15-Apr-2025

4:42:46 PM

57

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:42:46 PM

19

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:42:46 PM

27

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:42:46 PM

19

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:42:46 PM

18

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:42:46 PM

14

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:42:47 PM

114

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:42:47 PM

13

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:01 PM

23

1286.50

XCSE

GENMAB A/S

15-Apr-2025

4:43:01 PM

51

1287.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:31 PM

74

1287.00

XCSE

GENMAB A/S

15-Apr-2025

4:43:31 PM

50

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:43:31 PM

36

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:43:31 PM

26

1287.50

CEUX

GENMAB A/S

15-Apr-2025

4:43:37 PM

2

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:43:37 PM

5

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:43:37 PM

80

1288.00

XCSE

GENMAB A/S

15-Apr-2025

4:43:37 PM

8

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:37 PM

7

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:37 PM

5

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:37 PM

5

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:37 PM

2

1288.00

CEUX

GENMAB A/S

15-Apr-2025

4:43:37 PM

2

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:43:37 PM

10

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:43:37 PM

13

1288.00

AQEU

GENMAB A/S

15-Apr-2025

4:44:07 PM

24

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:44:07 PM

5

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:44:08 PM

87

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:08 PM

2

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:08 PM

15

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:08 PM

19

1289.00

CEUX

139

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:44:08 PM

7

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:08 PM

21

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:41 PM

36

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:41 PM

25

1289.00

AQEU

GENMAB A/S

15-Apr-2025

4:44:45 PM

35

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:45 PM

22

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:45 PM

57

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:45 PM

32

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:46 PM

18

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

19

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

35

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

19

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

35

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

15

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

18

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

16

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:46 PM

30

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:53 PM

45

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:53 PM

12

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:44:53 PM

2

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:44:53 PM

8

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:44:53 PM

15

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:44:53 PM

12

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

13

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

6

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

28

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

3

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

11

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

3

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:44:53 PM

7

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:45:09 PM

10

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:09 PM

32

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:10 PM

35

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:14 PM

25

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:15 PM

49

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:15 PM

35

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:15 PM

30

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:22 PM

57

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:22 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:22 PM

9

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:22 PM

2

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:22 PM

2

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:22 PM

5

1289.50

CEUX

140

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:45:22 PM

7

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:26 PM

35

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:26 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:26 PM

35

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:26 PM

29

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:26 PM

3

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:26 PM

17

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:29 PM

2

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:54 PM

32

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:45:56 PM

19

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:56 PM

23

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:56 PM

57

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:56 PM

15

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:45:59 PM

24

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:59 PM

57

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:45:59 PM

2

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:46:00 PM

57

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:00 PM

15

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:03 PM

42

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:46:03 PM

9

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:46:07 PM

5

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:07 PM

3

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:46:07 PM

36

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:46:07 PM

42

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:46:07 PM

30

1290.50

AQEU

GENMAB A/S

15-Apr-2025

4:46:13 PM

71

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:13 PM

32

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:46:13 PM

28

1291.00

AQEU

GENMAB A/S

15-Apr-2025

4:46:14 PM

2

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:14 PM

2

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:14 PM

2

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:14 PM

3

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:15 PM

29

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:46:17 PM

87

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:17 PM

1

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:17 PM

49

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:17 PM

17

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:17 PM

18

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:17 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:17 PM

26

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:46:18 PM

5

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:18 PM

11

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:18 PM

4

1289.00

XCSE

141

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:46:18 PM

11

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:18 PM

25

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:46:42 PM

35

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:46:50 PM

40

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:46:50 PM

39

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:47:00 PM

32

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:47:00 PM

11

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:47:00 PM

48

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:47:01 PM

18

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:47:01 PM

7

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:47:11 PM

28

1290.50

AQEU

GENMAB A/S

15-Apr-2025

4:47:12 PM

42

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:47:29 PM

30

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:47:30 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:07 PM

35

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:07 PM

28

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:07 PM

15

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:07 PM

15

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:07 PM

21

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:07 PM

38

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:48:07 PM

29

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:48:16 PM

2

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:21 PM

88

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:21 PM

61

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:48:21 PM

10

1290.00

AQEU

GENMAB A/S

15-Apr-2025

4:48:27 PM

36

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:48:27 PM

7

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:48:27 PM

7

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:48:27 PM

29

1290.00

AQEU

GENMAB A/S

15-Apr-2025

4:48:28 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:28 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:28 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:28 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:41 PM

15

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:41 PM

19

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:48:41 PM

88

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:49 PM

64

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:48:52 PM

25

1290.00

TQEX

GENMAB A/S

15-Apr-2025

4:48:53 PM

57

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:53 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:48:53 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:49:01 PM

22

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:50:08 PM

36

1289.50

CEUX

142

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:50:08 PM

31

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:50:17 PM

36

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:17 PM

8

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:17 PM

8

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:18 PM

20

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:31 PM

36

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:37 PM

13

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:38 PM

16

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:40 PM

7

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:44 PM

15

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:46 PM

10

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:46 PM

17

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:46 PM

19

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:46 PM

15

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:46 PM

34

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:46 PM

8

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:46 PM

8

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:46 PM

22

1289.50

CEUX

GENMAB A/S

15-Apr-2025

4:50:48 PM

15

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:50:48 PM

17

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:50:48 PM

36

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:50:48 PM

46

1289.00

XCSE

GENMAB A/S

15-Apr-2025

4:50:48 PM

42

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:48 PM

36

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:50:48 PM

21

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:50:48 PM

26

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:50:48 PM

99

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:50:49 PM

1

1288.50

XCSE

GENMAB A/S

15-Apr-2025

4:50:49 PM

30

1288.50

TQEX

GENMAB A/S

15-Apr-2025

4:50:49 PM

25

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:50:49 PM

4

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:50:49 PM

4

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:50:50 PM

6

1288.50

AQEU

GENMAB A/S

15-Apr-2025

4:51:01 PM

26

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:51:01 PM

38

1289.00

CEUX

GENMAB A/S

15-Apr-2025

4:51:03 PM

11

1289.00

TQEX

GENMAB A/S

15-Apr-2025

4:51:07 PM

17

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:07 PM

18

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:08 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:08 PM

57

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:08 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:08 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:09 PM

27

1290.00

CEUX

143

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:51:12 PM

15

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:13 PM

19

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:13 PM

18

1290.00

XCSE

GENMAB A/S

15-Apr-2025

4:51:13 PM

16

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:51:19 PM

32

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:51:20 PM

46

1289.50

XCSE

GENMAB A/S

15-Apr-2025

4:51:24 PM

31

1290.00

CEUX

GENMAB A/S

15-Apr-2025

4:51:35 PM

85

1290.50

XCSE

GENMAB A/S

15-Apr-2025

4:51:35 PM

36

1290.50

CEUX

GENMAB A/S

15-Apr-2025

4:51:40 PM

20

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:51:40 PM

13

1290.50

TQEX

GENMAB A/S

15-Apr-2025

4:51:47 PM

7

1290.50

AQEU

GENMAB A/S

15-Apr-2025

4:51:49 PM

5

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:51:53 PM

18

1291.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:01 PM

18

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:52:02 PM

5

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:02 PM

5

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:02 PM

15

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:02 PM

2

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:02 PM

12

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:52:07 PM

3

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:28 PM

9

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:28 PM

38

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:28 PM

6

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:41 PM

36

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:42 PM

36

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:45 PM

17

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:45 PM

19

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:45 PM

15

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:45 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:45 PM

6

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:45 PM

36

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:46 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

13

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

16

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

19

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

17

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

13

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

16

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

17

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

21

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:46 PM

19

1292.00

XCSE

144

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:52:46 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:47 PM

27

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:47 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:47 PM

18

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:47 PM

13

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:47 PM

17

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:47 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:48 PM

17

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:48 PM

18

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:48 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:48 PM

17

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:48 PM

5

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:49 PM

16

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:49 PM

16

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:49 PM

57

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:49 PM

18

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:49 PM

12

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:49 PM

40

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:53 PM

36

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:53 PM

11

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:52:56 PM

57

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:56 PM

10

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:56 PM

19

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:52:56 PM

55

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:52:56 PM

33

1291.50

AQEU

GENMAB A/S

15-Apr-2025

4:52:56 PM

13

1291.50

AQEU

GENMAB A/S

15-Apr-2025

4:52:59 PM

33

1291.00

XCSE

GENMAB A/S

15-Apr-2025

4:53:02 PM

6

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:53:03 PM

3

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:53:03 PM

5

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:53:03 PM

12

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:53:06 PM

46

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:53:21 PM

18

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:53:21 PM

28

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:53:26 PM

34

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:53:26 PM

57

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:53:26 PM

13

1293.00

XCSE

GENMAB A/S

15-Apr-2025

4:53:26 PM

8

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:53:26 PM

7

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:53:41 PM

80

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:54:01 PM

5

1292.00

XCSE

GENMAB A/S

15-Apr-2025

4:54:01 PM

27

1292.00

TQEX

GENMAB A/S

15-Apr-2025

4:54:01 PM

6

1291.50

TQEX

145

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:54:01 PM

2

1291.50

TQEX

GENMAB A/S

15-Apr-2025

4:54:01 PM

4

1291.50

TQEX

GENMAB A/S

15-Apr-2025

4:54:01 PM

2

1291.50

TQEX

GENMAB A/S

15-Apr-2025

4:54:01 PM

9

1291.50

TQEX

GENMAB A/S

15-Apr-2025

4:54:01 PM

2

1291.50

TQEX

GENMAB A/S

15-Apr-2025

4:54:01 PM

25

1292.00

CEUX

GENMAB A/S

15-Apr-2025

4:54:01 PM

7

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:01 PM

3

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:01 PM

2

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:01 PM

14

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:01 PM

6

1291.50

AQEU

GENMAB A/S

15-Apr-2025

4:54:01 PM

12

1291.50

AQEU

GENMAB A/S

15-Apr-2025

4:54:07 PM

1

1291.50

AQEU

GENMAB A/S

15-Apr-2025

4:54:12 PM

29

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:12 PM

19

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:12 PM

17

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:12 PM

35

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:12 PM

8

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

8

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

8

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

8

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

28

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

12

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

5

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

21

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

7

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

8

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

7

1291.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:12 PM

17

1291.50

AQEU

GENMAB A/S

15-Apr-2025

4:54:13 PM

29

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:13 PM

19

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:13 PM

16

1291.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

18

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

18

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

35

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

16

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

27

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

30

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

16

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

14

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:18 PM

10

1292.50

XCSE

GENMAB A/S

15-Apr-2025

4:54:31 PM

26

1291.50

TQEX

GENMAB A/S

15-Apr-2025

4:54:49 PM

33

1292.50

XCSE

146

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

15-Apr-2025

4:54:49 PM

32

1292.50

CEUX

GENMAB A/S

15-Apr-2025

4:54:50 PM

37

1292.00

AQEU

GENMAB A/S

16-Apr-2025

9:35:44 AM

81

1289.00

XCSE

GENMAB A/S

16-Apr-2025

9:35:44 AM

32

1289.00

CEUX

GENMAB A/S

16-Apr-2025

9:35:44 AM

58

1289.00

CEUX

GENMAB A/S

16-Apr-2025

9:39:30 AM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

9:39:30 AM

88

1290.50

TQEX

GENMAB A/S

16-Apr-2025

9:39:30 AM

29

1289.50

CEUX

GENMAB A/S

16-Apr-2025

9:39:30 AM

21

1290.50

AQEU

GENMAB A/S

16-Apr-2025

9:39:30 AM

65

1290.50

AQEU

GENMAB A/S

16-Apr-2025

9:39:30 AM

82

1289.50

AQEU

GENMAB A/S

16-Apr-2025

9:42:18 AM

15

1289.00

XCSE

GENMAB A/S

16-Apr-2025

9:42:18 AM

37

1289.00

XCSE

GENMAB A/S

16-Apr-2025

9:42:18 AM

75

1289.00

TQEX

GENMAB A/S

16-Apr-2025

9:43:05 AM

16

1289.00

XCSE

GENMAB A/S

16-Apr-2025

9:43:05 AM

10

1289.00

XCSE

GENMAB A/S

16-Apr-2025

9:43:05 AM

48

1289.50

CEUX

GENMAB A/S

16-Apr-2025

9:43:05 AM

28

1289.50

AQEU

GENMAB A/S

16-Apr-2025

9:43:09 AM

20

1289.00

TQEX

GENMAB A/S

16-Apr-2025

9:43:09 AM

16

1289.00

TQEX

GENMAB A/S

16-Apr-2025

9:43:13 AM

61

1288.50

CEUX

GENMAB A/S

16-Apr-2025

9:44:29 AM

11

1289.50

AQEU

GENMAB A/S

16-Apr-2025

9:44:32 AM

39

1289.50

XCSE

GENMAB A/S

16-Apr-2025

9:44:32 AM

20

1289.50

AQEU

GENMAB A/S

16-Apr-2025

9:45:04 AM

20

1289.00

CEUX

GENMAB A/S

16-Apr-2025

9:45:14 AM

43

1289.50

XCSE

GENMAB A/S

16-Apr-2025

9:46:28 AM

24

1289.00

CEUX

GENMAB A/S

16-Apr-2025

9:46:33 AM

19

1289.00

TQEX

GENMAB A/S

16-Apr-2025

9:46:33 AM

9

1289.00

TQEX

GENMAB A/S

16-Apr-2025

9:46:33 AM

12

1289.00

CEUX

GENMAB A/S

16-Apr-2025

9:49:04 AM

38

1288.50

XCSE

GENMAB A/S

16-Apr-2025

9:49:13 AM

37

1287.50

XCSE

GENMAB A/S

16-Apr-2025

9:49:13 AM

27

1287.50

CEUX

GENMAB A/S

16-Apr-2025

9:49:13 AM

4

1287.50

CEUX

GENMAB A/S

16-Apr-2025

9:49:25 AM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

9:49:43 AM

33

1287.00

CEUX

GENMAB A/S

16-Apr-2025

9:49:43 AM

54

1287.00

CEUX

GENMAB A/S

16-Apr-2025

9:50:07 AM

64

1286.50

XCSE

GENMAB A/S

16-Apr-2025

9:50:24 AM

38

1286.00

CEUX

GENMAB A/S

16-Apr-2025

9:50:28 AM

27

1285.50

TQEX

GENMAB A/S

16-Apr-2025

9:51:02 AM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

9:51:25 AM

21

1284.50

CEUX

GENMAB A/S

16-Apr-2025

9:51:59 AM

67

1284.50

CEUX

147

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

9:52:00 AM

29

1284.50

TQEX

GENMAB A/S

16-Apr-2025

9:53:41 AM

45

1283.50

CEUX

GENMAB A/S

16-Apr-2025

9:56:20 AM

56

1283.50

XCSE

GENMAB A/S

16-Apr-2025

9:56:20 AM

46

1283.50

CEUX

GENMAB A/S

16-Apr-2025

9:56:29 AM

33

1283.00

TQEX

GENMAB A/S

16-Apr-2025

9:56:30 AM

23

1282.50

CEUX

GENMAB A/S

16-Apr-2025

9:56:44 AM

8

1283.00

TQEX

GENMAB A/S

16-Apr-2025

9:56:53 AM

88

1283.00

XCSE

GENMAB A/S

16-Apr-2025

9:56:53 AM

21

1283.00

TQEX

GENMAB A/S

16-Apr-2025

9:57:05 AM

67

1282.50

CEUX

GENMAB A/S

16-Apr-2025

9:58:25 AM

1

1282.00

XCSE

GENMAB A/S

16-Apr-2025

9:58:25 AM

1

1282.00

XCSE

GENMAB A/S

16-Apr-2025

9:58:25 AM

47

1282.00

XCSE

GENMAB A/S

16-Apr-2025

9:58:25 AM

28

1282.50

AQEU

GENMAB A/S

16-Apr-2025

9:58:29 AM

29

1282.00

TQEX

GENMAB A/S

16-Apr-2025

9:58:29 AM

32

1282.00

CEUX

GENMAB A/S

16-Apr-2025

9:58:29 AM

79

1281.50

CEUX

GENMAB A/S

16-Apr-2025

10:00:08 AM

92

1281.50

XCSE

GENMAB A/S

16-Apr-2025

10:00:19 AM

35

1281.00

TQEX

GENMAB A/S

16-Apr-2025

10:00:19 AM

15

1281.00

CEUX

GENMAB A/S

16-Apr-2025

10:00:19 AM

33

1281.00

AQEU

GENMAB A/S

16-Apr-2025

10:01:26 AM

91

1282.00

XCSE

GENMAB A/S

16-Apr-2025

10:01:26 AM

15

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:01:26 AM

13

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:01:28 AM

12

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:01:30 AM

61

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:02:26 AM

31

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:23 AM

36

1283.00

CEUX

GENMAB A/S

16-Apr-2025

10:03:23 AM

49

1283.00

CEUX

GENMAB A/S

16-Apr-2025

10:03:32 AM

38

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:32 AM

21

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:32 AM

35

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:59 AM

90

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:59 AM

7

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:59 AM

25

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:03:59 AM

41

1284.00

TQEX

GENMAB A/S

16-Apr-2025

10:03:59 AM

86

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:03:59 AM

25

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:03:59 AM

32

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:03:59 AM

36

1284.00

AQEU

GENMAB A/S

16-Apr-2025

10:03:59 AM

5

1284.00

AQEU

GENMAB A/S

16-Apr-2025

10:04:00 AM

23

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:04:35 AM

25

1284.00

XCSE

148

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:04:48 AM

50

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

35

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

28

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

38

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

16

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

14

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

38

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:00 AM

25

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:36 AM

4

1283.00

AQEU

GENMAB A/S

16-Apr-2025

10:05:50 AM

90

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:50 AM

38

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:50 AM

15

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:50 AM

37

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:05:50 AM

88

1282.50

XCSE

GENMAB A/S

16-Apr-2025

10:05:50 AM

42

1283.00

TQEX

GENMAB A/S

16-Apr-2025

10:05:50 AM

88

1283.00

CEUX

GENMAB A/S

16-Apr-2025

10:05:50 AM

36

1283.00

CEUX

GENMAB A/S

16-Apr-2025

10:05:50 AM

76

1282.00

CEUX

GENMAB A/S

16-Apr-2025

10:05:50 AM

23

1283.00

AQEU

GENMAB A/S

16-Apr-2025

10:09:34 AM

26

1282.00

TQEX

GENMAB A/S

16-Apr-2025

10:09:34 AM

36

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:09:34 AM

10

1282.00

CEUX

GENMAB A/S

16-Apr-2025

10:09:34 AM

21

1282.00

AQEU

GENMAB A/S

16-Apr-2025

10:09:37 AM

5

1282.00

TQEX

GENMAB A/S

16-Apr-2025

10:09:43 AM

9

1282.00

AQEU

GENMAB A/S

16-Apr-2025

10:11:21 AM

3

1282.00

XCSE

GENMAB A/S

16-Apr-2025

10:11:21 AM

29

1282.00

XCSE

GENMAB A/S

16-Apr-2025

10:11:21 AM

19

1282.00

XCSE

GENMAB A/S

16-Apr-2025

10:11:22 AM

20

1282.00

CEUX

GENMAB A/S

16-Apr-2025

10:12:15 AM

90

1281.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:29 AM

45

1281.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:29 AM

10

1281.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:29 AM

37

1281.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:29 AM

22

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:29 AM

68

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:29 AM

31

1281.00

TQEX

GENMAB A/S

16-Apr-2025

10:14:29 AM

86

1280.50

CEUX

GENMAB A/S

16-Apr-2025

10:14:29 AM

28

1281.00

AQEU

GENMAB A/S

16-Apr-2025

10:14:30 AM

43

1280.00

XCSE

GENMAB A/S

16-Apr-2025

10:14:30 AM

45

1280.00

XCSE

GENMAB A/S

16-Apr-2025

10:14:30 AM

29

1280.00

XCSE

GENMAB A/S

16-Apr-2025

10:14:30 AM

45

1280.00

XCSE

GENMAB A/S

16-Apr-2025

10:14:30 AM

8

1280.00

XCSE

149

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:14:30 AM

27

1279.50

TQEX

GENMAB A/S

16-Apr-2025

10:14:30 AM

36

1280.00

CEUX

GENMAB A/S

16-Apr-2025

10:14:30 AM

7

1280.00

CEUX

GENMAB A/S

16-Apr-2025

10:14:30 AM

7

1280.00

CEUX

GENMAB A/S

16-Apr-2025

10:14:30 AM

51

1280.00

CEUX

GENMAB A/S

16-Apr-2025

10:14:30 AM

88

1279.50

CEUX

GENMAB A/S

16-Apr-2025

10:14:30 AM

67

1279.50

CEUX

GENMAB A/S

16-Apr-2025

10:14:30 AM

29

1280.00

AQEU

GENMAB A/S

16-Apr-2025

10:14:53 AM

90

1280.00

XCSE

GENMAB A/S

16-Apr-2025

10:14:55 AM

92

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:14:55 AM

5

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:16:37 AM

45

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:16:37 AM

19

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:16:37 AM

37

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:16:37 AM

44

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:16:37 AM

30

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:16:37 AM

18

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:17:00 AM

26

1280.00

TQEX

GENMAB A/S

16-Apr-2025

10:17:00 AM

25

1280.00

CEUX

GENMAB A/S

16-Apr-2025

10:17:00 AM

36

1280.50

CEUX

GENMAB A/S

16-Apr-2025

10:17:00 AM

7

1280.50

CEUX

GENMAB A/S

16-Apr-2025

10:17:00 AM

6

1280.50

CEUX

GENMAB A/S

16-Apr-2025

10:17:00 AM

25

1279.50

CEUX

GENMAB A/S

16-Apr-2025

10:17:41 AM

89

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:17:41 AM

90

1278.00

XCSE

GENMAB A/S

16-Apr-2025

10:17:41 AM

35

1278.00

XCSE

GENMAB A/S

16-Apr-2025

10:17:41 AM

45

1278.00

XCSE

GENMAB A/S

16-Apr-2025

10:17:41 AM

26

1279.00

TQEX

GENMAB A/S

16-Apr-2025

10:17:41 AM

27

1278.00

TQEX

GENMAB A/S

16-Apr-2025

10:17:41 AM

87

1278.00

CEUX

GENMAB A/S

16-Apr-2025

10:17:41 AM

36

1278.00

CEUX

GENMAB A/S

16-Apr-2025

10:17:41 AM

34

1279.00

AQEU

GENMAB A/S

16-Apr-2025

10:17:41 AM

27

1278.00

AQEU

GENMAB A/S

16-Apr-2025

10:18:26 AM

90

1278.00

XCSE

GENMAB A/S

16-Apr-2025

10:18:26 AM

93

1278.00

CEUX

GENMAB A/S

16-Apr-2025

10:18:26 AM

26

1278.00

AQEU

GENMAB A/S

16-Apr-2025

10:18:27 AM

47

1278.00

XCSE

GENMAB A/S

16-Apr-2025

10:18:27 AM

18

1278.00

CEUX

GENMAB A/S

16-Apr-2025

10:18:27 AM

8

1278.00

CEUX

GENMAB A/S

16-Apr-2025

10:18:29 AM

100

1278.50

XCSE

GENMAB A/S

16-Apr-2025

10:18:29 AM

100

1278.50

XCSE

GENMAB A/S

16-Apr-2025

10:18:30 AM

100

1278.50

XCSE

GENMAB A/S

16-Apr-2025

10:18:30 AM

47

1278.50

XCSE

150

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:20:25 AM

12

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:25 AM

45

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:25 AM

11

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:25 AM

12

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:25 AM

37

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:25 AM

89

1278.00

CEUX

GENMAB A/S

16-Apr-2025

10:20:25 AM

33

1278.50

CEUX

GENMAB A/S

16-Apr-2025

10:20:25 AM

56

1278.50

CEUX

GENMAB A/S

16-Apr-2025

10:20:25 AM

30

1279.00

CEUX

GENMAB A/S

16-Apr-2025

10:20:25 AM

8

1279.00

CEUX

GENMAB A/S

16-Apr-2025

10:20:26 AM

63

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

11

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

43

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

2

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

11

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

11

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

13

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:26 AM

80

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:20:33 AM

3

1278.50

XCSE

GENMAB A/S

16-Apr-2025

10:21:57 AM

30

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:21:57 AM

87

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:21:58 AM

13

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:21:58 AM

100

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:21:58 AM

21

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:21:58 AM

31

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:21:58 AM

36

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:22:47 AM

87

1279.00

XCSE

GENMAB A/S

16-Apr-2025

10:22:47 AM

51

1279.00

AQEU

GENMAB A/S

16-Apr-2025

10:22:48 AM

32

1279.00

CEUX

GENMAB A/S

16-Apr-2025

10:24:16 AM

14

1281.00

CEUX

GENMAB A/S

16-Apr-2025

10:24:17 AM

36

1281.00

CEUX

GENMAB A/S

16-Apr-2025

10:24:21 AM

32

1281.00

CEUX

GENMAB A/S

16-Apr-2025

10:25:15 AM

91

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:25:15 AM

45

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:25:15 AM

19

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:25:15 AM

88

1280.50

CEUX

GENMAB A/S

16-Apr-2025

10:27:30 AM

93

1282.50

XCSE

GENMAB A/S

16-Apr-2025

10:27:31 AM

18

1283.50

CEUX

GENMAB A/S

16-Apr-2025

10:27:32 AM

37

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:27:32 AM

54

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:27:34 AM

35

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:27:34 AM

23

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:27:34 AM

25

1284.50

CEUX

151

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:27:35 AM

66

1284.50

CEUX

GENMAB A/S

16-Apr-2025

10:27:35 AM

2

1284.50

CEUX

GENMAB A/S

16-Apr-2025

10:27:39 AM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:27:39 AM

23

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:00 AM

86

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:00 AM

35

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:00 AM

45

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:00 AM

24

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:00 AM

13

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

35

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

45

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

18

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

19

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

91

1288.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

45

1288.50

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

56

1288.50

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

1

1288.50

XCSE

GENMAB A/S

16-Apr-2025

10:28:01 AM

91

1288.00

CEUX

GENMAB A/S

16-Apr-2025

10:28:01 AM

50

1288.00

AQEU

GENMAB A/S

16-Apr-2025

10:28:02 AM

45

1288.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:02 AM

24

1288.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:02 AM

13

1288.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:08 AM

91

1288.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:10 AM

92

1287.50

CEUX

GENMAB A/S

16-Apr-2025

10:28:14 AM

90

1287.50

XCSE

GENMAB A/S

16-Apr-2025

10:28:17 AM

30

1286.50

CEUX

GENMAB A/S

16-Apr-2025

10:28:18 AM

86

1286.50

XCSE

GENMAB A/S

16-Apr-2025

10:28:18 AM

42

1286.50

TQEX

GENMAB A/S

16-Apr-2025

10:28:18 AM

24

1286.50

CEUX

GENMAB A/S

16-Apr-2025

10:28:18 AM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

10:28:54 AM

14

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:55 AM

36

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:28:56 AM

37

1289.00

XCSE

GENMAB A/S

16-Apr-2025

10:29:04 AM

87

1290.50

XCSE

GENMAB A/S

16-Apr-2025

10:29:11 AM

67

1291.50

CEUX

GENMAB A/S

16-Apr-2025

10:29:18 AM

75

1292.00

XCSE

GENMAB A/S

16-Apr-2025

10:29:18 AM

44

1292.00

AQEU

GENMAB A/S

16-Apr-2025

10:29:20 AM

31

1292.00

TQEX

GENMAB A/S

16-Apr-2025

10:29:23 AM

8

1291.00

XCSE

GENMAB A/S

16-Apr-2025

10:29:23 AM

25

1291.00

XCSE

GENMAB A/S

16-Apr-2025

10:29:23 AM

27

1291.00

TQEX

GENMAB A/S

16-Apr-2025

10:29:23 AM

21

1291.50

CEUX

152

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:29:23 AM

25

1290.50

CEUX

GENMAB A/S

16-Apr-2025

10:29:23 AM

44

1291.00

AQEU

GENMAB A/S

16-Apr-2025

10:29:24 AM

62

1290.50

CEUX

GENMAB A/S

16-Apr-2025

10:29:30 AM

87

1289.50

XCSE

GENMAB A/S

16-Apr-2025

10:29:30 AM

42

1289.50

CEUX

GENMAB A/S

16-Apr-2025

10:29:30 AM

47

1289.50

CEUX

GENMAB A/S

16-Apr-2025

10:29:53 AM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

10:30:20 AM

29

1288.50

XCSE

GENMAB A/S

16-Apr-2025

10:30:55 AM

34

1288.00

CEUX

GENMAB A/S

16-Apr-2025

10:31:06 AM

30

1287.50

XCSE

GENMAB A/S

16-Apr-2025

10:31:06 AM

29

1287.00

CEUX

GENMAB A/S

16-Apr-2025

10:31:25 AM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

10:31:25 AM

28

1286.50

TQEX

GENMAB A/S

16-Apr-2025

10:31:28 AM

30

1286.00

CEUX

GENMAB A/S

16-Apr-2025

10:31:29 AM

19

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:31:29 AM

11

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:33:56 AM

28

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:33:56 AM

21

1283.50

CEUX

GENMAB A/S

16-Apr-2025

10:33:59 AM

7

1283.50

CEUX

GENMAB A/S

16-Apr-2025

10:34:23 AM

88

1283.50

XCSE

GENMAB A/S

16-Apr-2025

10:34:40 AM

30

1283.00

TQEX

GENMAB A/S

16-Apr-2025

10:34:40 AM

35

1283.00

AQEU

GENMAB A/S

16-Apr-2025

10:35:34 AM

31

1282.50

XCSE

GENMAB A/S

16-Apr-2025

10:35:34 AM

22

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:35:34 AM

6

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:35:43 AM

26

1281.50

CEUX

GENMAB A/S

16-Apr-2025

10:35:49 AM

3

1281.50

CEUX

GENMAB A/S

16-Apr-2025

10:36:57 AM

32

1281.50

AQEU

GENMAB A/S

16-Apr-2025

10:37:31 AM

1

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:37:31 AM

56

1281.00

XCSE

GENMAB A/S

16-Apr-2025

10:38:00 AM

52

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:38:27 AM

41

1280.50

XCSE

GENMAB A/S

16-Apr-2025

10:41:18 AM

11

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:42:13 AM

86

1285.00

CEUX

GENMAB A/S

16-Apr-2025

10:42:13 AM

26

1285.00

AQEU

GENMAB A/S

16-Apr-2025

10:44:00 AM

27

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:44:00 AM

91

1285.00

CEUX

GENMAB A/S

16-Apr-2025

10:44:01 AM

12

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:44:01 AM

14

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:44:07 AM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:44:07 AM

17

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:44:07 AM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:45:05 AM

39

1285.00

XCSE

153

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:45:05 AM

28

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:45:05 AM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

91

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

27

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

35

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

16

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

74

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

37

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

5

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

1

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:47:40 AM

27

1284.00

TQEX

GENMAB A/S

16-Apr-2025

10:47:40 AM

87

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:47:40 AM

4

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:47:40 AM

28

1284.00

AQEU

GENMAB A/S

16-Apr-2025

10:47:56 AM

70

1284.00

XCSE

GENMAB A/S

16-Apr-2025

10:51:09 AM

26

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:09 AM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:09 AM

14

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:12 AM

14

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:12 AM

11

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:15 AM

37

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:15 AM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:25 AM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:25 AM

37

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:46 AM

13

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:46 AM

2

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:51:56 AM

13

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:52:06 AM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:52:06 AM

21

1284.50

XCSE

GENMAB A/S

16-Apr-2025

10:52:28 AM

38

1284.00

TQEX

GENMAB A/S

16-Apr-2025

10:52:28 AM

36

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:52:28 AM

29

1284.00

AQEU

GENMAB A/S

16-Apr-2025

10:52:39 AM

91

1283.50

XCSE

GENMAB A/S

16-Apr-2025

10:52:39 AM

36

1283.50

CEUX

GENMAB A/S

16-Apr-2025

10:53:51 AM

15

1283.50

CEUX

GENMAB A/S

16-Apr-2025

10:53:51 AM

36

1284.00

CEUX

GENMAB A/S

16-Apr-2025

10:53:53 AM

92

1282.50

XCSE

GENMAB A/S

16-Apr-2025

10:53:53 AM

26

1283.00

TQEX

GENMAB A/S

16-Apr-2025

10:53:53 AM

93

1283.00

CEUX

GENMAB A/S

16-Apr-2025

10:53:53 AM

26

1283.00

AQEU

GENMAB A/S

16-Apr-2025

10:54:25 AM

26

1282.00

TQEX

GENMAB A/S

16-Apr-2025

10:54:25 AM

78

1281.50

CEUX

154

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

10:57:15 AM

9

1281.50

CEUX

GENMAB A/S

16-Apr-2025

10:57:50 AM

89

1283.00

XCSE

GENMAB A/S

16-Apr-2025

10:57:50 AM

39

1283.50

XCSE

GENMAB A/S

16-Apr-2025

10:57:50 AM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

10:57:50 AM

13

1283.50

XCSE

GENMAB A/S

16-Apr-2025

10:57:50 AM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

10:58:08 AM

4

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:59:02 AM

32

1282.50

CEUX

GENMAB A/S

16-Apr-2025

10:59:10 AM

26

1282.50

AQEU

GENMAB A/S

16-Apr-2025

10:59:10 AM

28

1282.50

TQEX

GENMAB A/S

16-Apr-2025

10:59:10 AM

51

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:00:55 AM

13

1282.00

XCSE

GENMAB A/S

16-Apr-2025

11:00:55 AM

13

1282.00

XCSE

GENMAB A/S

16-Apr-2025

11:00:55 AM

2

1281.50

TQEX

GENMAB A/S

16-Apr-2025

11:01:15 AM

89

1281.50

XCSE

GENMAB A/S

16-Apr-2025

11:01:15 AM

29

1281.50

TQEX

GENMAB A/S

16-Apr-2025

11:01:15 AM

88

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:01:21 AM

27

1281.50

AQEU

GENMAB A/S

16-Apr-2025

11:04:05 AM

88

1281.50

XCSE

GENMAB A/S

16-Apr-2025

11:04:05 AM

89

1281.50

CEUX

GENMAB A/S

16-Apr-2025

11:05:01 AM

25

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:05:01 AM

3

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:05:01 AM

12

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:05:30 AM

11

1282.50

XCSE

GENMAB A/S

16-Apr-2025

11:05:30 AM

40

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:05:30 AM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:05:30 AM

27

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:05:35 AM

92

1282.00

CEUX

GENMAB A/S

16-Apr-2025

11:08:05 AM

13

1281.50

TQEX

GENMAB A/S

16-Apr-2025

11:08:05 AM

16

1281.50

TQEX

GENMAB A/S

16-Apr-2025

11:08:05 AM

74

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:11:29 AM

34

1283.50

TQEX

GENMAB A/S

16-Apr-2025

11:11:29 AM

1

1283.50

CEUX

GENMAB A/S

16-Apr-2025

11:11:29 AM

89

1283.50

CEUX

GENMAB A/S

16-Apr-2025

11:11:41 AM

1

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:11:51 AM

12

1283.50

CEUX

GENMAB A/S

16-Apr-2025

11:11:51 AM

14

1283.50

CEUX

GENMAB A/S

16-Apr-2025

11:11:52 AM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:11:53 AM

13

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:11:54 AM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:11:55 AM

12

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:11:56 AM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:13:15 AM

88

1283.00

XCSE

155

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

11:13:15 AM

40

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:13:15 AM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:13:15 AM

38

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:13:15 AM

35

1283.00

AQEU

GENMAB A/S

16-Apr-2025

11:13:15 AM

33

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:13:15 AM

7

1283.00

CEUX

GENMAB A/S

16-Apr-2025

11:13:21 AM

9

1283.00

CEUX

GENMAB A/S

16-Apr-2025

11:13:21 AM

3

1283.00

CEUX

GENMAB A/S

16-Apr-2025

11:13:22 AM

12

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:13:38 AM

15

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:13:38 AM

11

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:16:22 AM

45

1283.50

XCSE

GENMAB A/S

16-Apr-2025

11:16:22 AM

36

1283.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

91

1283.00

XCSE

GENMAB A/S

16-Apr-2025

11:17:15 AM

26

1283.00

AQEU

GENMAB A/S

16-Apr-2025

11:17:15 AM

36

1282.50

TQEX

GENMAB A/S

16-Apr-2025

11:17:15 AM

60

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

36

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

7

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

7

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

7

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

7

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:15 AM

12

1282.50

CEUX

GENMAB A/S

16-Apr-2025

11:17:17 AM

88

1282.00

XCSE

GENMAB A/S

16-Apr-2025

11:17:17 AM

36

1282.00

AQEU

GENMAB A/S

16-Apr-2025

11:19:05 AM

26

1281.50

TQEX

GENMAB A/S

16-Apr-2025

11:19:05 AM

12

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:19:36 AM

88

1281.00

XCSE

GENMAB A/S

16-Apr-2025

11:19:36 AM

26

1281.00

AQEU

GENMAB A/S

16-Apr-2025

11:19:36 AM

15

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:19:36 AM

7

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:19:37 AM

6

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:20:17 AM

9

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:20:17 AM

18

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:20:17 AM

7

1281.00

CEUX

GENMAB A/S

16-Apr-2025

11:20:18 AM

6

1280.50

CEUX

GENMAB A/S

16-Apr-2025

11:20:18 AM

6

1280.50

CEUX

GENMAB A/S

16-Apr-2025

11:20:18 AM

7

1280.50

CEUX

GENMAB A/S

16-Apr-2025

11:21:05 AM

89

1279.50

XCSE

GENMAB A/S

16-Apr-2025

11:21:05 AM

30

1280.00

AQEU

GENMAB A/S

16-Apr-2025

11:21:05 AM

32

1280.00

TQEX

GENMAB A/S

16-Apr-2025

11:21:05 AM

90

1279.50

CEUX

GENMAB A/S

16-Apr-2025

11:23:15 AM

26

1279.00

TQEX

156

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

11:23:55 AM

75

1278.00

CEUX

GENMAB A/S

16-Apr-2025

11:24:11 AM

10

1278.50

CEUX

GENMAB A/S

16-Apr-2025

11:25:43 AM

92

1278.00

XCSE

GENMAB A/S

16-Apr-2025

11:25:43 AM

29

1278.00

TQEX

GENMAB A/S

16-Apr-2025

11:25:43 AM

36

1278.50

CEUX

GENMAB A/S

16-Apr-2025

11:25:43 AM

17

1278.00

CEUX

GENMAB A/S

16-Apr-2025

11:25:44 AM

13

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:25:44 AM

27

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:25:44 AM

12

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:25:45 AM

12

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:26:07 AM

93

1280.00

CEUX

GENMAB A/S

16-Apr-2025

11:29:12 AM

86

1280.00

XCSE

GENMAB A/S

16-Apr-2025

11:30:13 AM

90

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:30:13 AM

35

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:30:13 AM

27

1278.50

AQEU

GENMAB A/S

16-Apr-2025

11:30:13 AM

27

1278.50

TQEX

GENMAB A/S

16-Apr-2025

11:30:13 AM

57

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:30:13 AM

35

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:31:05 AM

62

1278.00

CEUX

GENMAB A/S

16-Apr-2025

11:32:05 AM

91

1278.00

XCSE

GENMAB A/S

16-Apr-2025

11:32:05 AM

25

1278.00

CEUX

GENMAB A/S

16-Apr-2025

11:32:53 AM

93

1278.00

XCSE

GENMAB A/S

16-Apr-2025

11:32:53 AM

27

1278.00

TQEX

GENMAB A/S

16-Apr-2025

11:32:53 AM

91

1278.00

CEUX

GENMAB A/S

16-Apr-2025

11:36:03 AM

26

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:36:03 AM

36

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:37:35 AM

64

1278.50

CEUX

GENMAB A/S

16-Apr-2025

11:39:15 AM

92

1279.50

XCSE

GENMAB A/S

16-Apr-2025

11:39:27 AM

27

1279.50

XCSE

GENMAB A/S

16-Apr-2025

11:41:15 AM

25

1278.50

CEUX

GENMAB A/S

16-Apr-2025

11:41:42 AM

27

1279.00

TQEX

GENMAB A/S

16-Apr-2025

11:42:55 AM

87

1278.50

XCSE

GENMAB A/S

16-Apr-2025

11:42:55 AM

27

1278.00

TQEX

GENMAB A/S

16-Apr-2025

11:42:55 AM

26

1278.50

AQEU

GENMAB A/S

16-Apr-2025

11:42:55 AM

7

1278.50

AQEU

GENMAB A/S

16-Apr-2025

11:43:55 AM

88

1277.50

CEUX

GENMAB A/S

16-Apr-2025

11:46:42 AM

21

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:46:42 AM

39

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:46:52 AM

14

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:46:52 AM

12

1279.00

XCSE

GENMAB A/S

16-Apr-2025

11:47:15 AM

92

1278.50

XCSE

GENMAB A/S

16-Apr-2025

11:48:45 AM

66

1278.00

CEUX

GENMAB A/S

16-Apr-2025

11:49:55 AM

25

1278.00

CEUX

157

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

11:55:00 AM

9

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:55:01 AM

36

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:55:02 AM

36

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:55:06 AM

14

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:56:35 AM

35

1279.00

TQEX

GENMAB A/S

16-Apr-2025

11:56:35 AM

90

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:56:45 AM

12

1279.00

TQEX

GENMAB A/S

16-Apr-2025

11:56:45 AM

36

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:56:53 AM

13

1279.00

CEUX

GENMAB A/S

16-Apr-2025

11:57:56 AM

67

1278.50

XCSE

GENMAB A/S

16-Apr-2025

11:59:25 AM

26

1278.50

XCSE

GENMAB A/S

16-Apr-2025

11:59:25 AM

26

1278.00

TQEX

GENMAB A/S

16-Apr-2025

11:59:25 AM

74

1278.50

AQEU

GENMAB A/S

16-Apr-2025

11:59:25 AM

18

1278.50

CEUX

GENMAB A/S

16-Apr-2025

11:59:25 AM

50

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:00:19 PM

21

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:00:19 PM

2

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:00:19 PM

20

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:02:19 PM

12

1280.00

CEUX

GENMAB A/S

16-Apr-2025

12:04:35 PM

56

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:07:15 PM

86

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:07:15 PM

35

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:10:25 PM

32

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:10:25 PM

16

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:10:25 PM

25

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:10:25 PM

26

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:10:25 PM

14

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:10:29 PM

25

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:10:29 PM

20

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:12:15 PM

13

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:12:15 PM

13

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:12:15 PM

9

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:12:15 PM

12

1279.00

TQEX

GENMAB A/S

16-Apr-2025

12:12:15 PM

25

1279.00

TQEX

GENMAB A/S

16-Apr-2025

12:12:15 PM

89

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:12:26 PM

54

1279.00

AQEU

GENMAB A/S

16-Apr-2025

12:12:26 PM

10

1279.00

CEUX

GENMAB A/S

16-Apr-2025

12:14:57 PM

11

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:15:09 PM

81

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:15:09 PM

26

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:15:09 PM

20

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:15:43 PM

9

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:15:43 PM

15

1278.50

XCSE

158

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

12:15:43 PM

2

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:15:43 PM

17

1278.00

TQEX

GENMAB A/S

16-Apr-2025

12:15:43 PM

19

1278.00

TQEX

GENMAB A/S

16-Apr-2025

12:15:43 PM

45

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:15:43 PM

7

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:17:45 PM

92

1277.50

XCSE

GENMAB A/S

16-Apr-2025

12:17:45 PM

2

1277.50

AQEU

GENMAB A/S

16-Apr-2025

12:17:45 PM

57

1277.50

CEUX

GENMAB A/S

16-Apr-2025

12:17:45 PM

2

1277.50

CEUX

GENMAB A/S

16-Apr-2025

12:18:27 PM

29

1277.50

CEUX

GENMAB A/S

16-Apr-2025

12:19:00 PM

86

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:19:00 PM

47

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:19:07 PM

100

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:19:13 PM

90

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:20:22 PM

53

1279.00

TQEX

GENMAB A/S

16-Apr-2025

12:20:22 PM

36

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:20:22 PM

33

1279.00

CEUX

GENMAB A/S

16-Apr-2025

12:20:22 PM

54

1279.00

CEUX

GENMAB A/S

16-Apr-2025

12:20:22 PM

10

1279.00

CEUX

GENMAB A/S

16-Apr-2025

12:22:45 PM

89

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:22:45 PM

71

1278.50

AQEU

GENMAB A/S

16-Apr-2025

12:22:45 PM

69

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:24:43 PM

19

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:25:45 PM

21

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:27:29 PM

58

1278.00

TQEX

GENMAB A/S

16-Apr-2025

12:27:29 PM

10

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:27:30 PM

15

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:27:32 PM

2

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:27:59 PM

17

1278.00

XCSE

GENMAB A/S

16-Apr-2025

12:27:59 PM

74

1278.00

XCSE

GENMAB A/S

16-Apr-2025

12:29:25 PM

87

1278.00

XCSE

GENMAB A/S

16-Apr-2025

12:29:25 PM

34

1278.00

TQEX

GENMAB A/S

16-Apr-2025

12:29:25 PM

91

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:30:55 PM

14

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:34:25 PM

14

1278.50

XCSE

GENMAB A/S

16-Apr-2025

12:34:25 PM

79

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:35:03 PM

20

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:35:14 PM

15

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

15

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

37

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

13

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

37

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

15

1279.00

XCSE

159

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

12:35:14 PM

14

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

16

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

37

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:35:14 PM

12

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:37:01 PM

13

1278.00

XCSE

GENMAB A/S

16-Apr-2025

12:37:01 PM

80

1278.00

XCSE

GENMAB A/S

16-Apr-2025

12:37:01 PM

31

1278.00

TQEX

GENMAB A/S

16-Apr-2025

12:37:01 PM

26

1277.50

AQEU

GENMAB A/S

16-Apr-2025

12:37:01 PM

8

1278.00

CEUX

GENMAB A/S

16-Apr-2025

12:37:01 PM

68

1277.00

CEUX

GENMAB A/S

16-Apr-2025

12:39:15 PM

89

1277.00

XCSE

GENMAB A/S

16-Apr-2025

12:39:15 PM

10

1277.00

TQEX

GENMAB A/S

16-Apr-2025

12:39:15 PM

10

1277.00

TQEX

GENMAB A/S

16-Apr-2025

12:39:15 PM

7

1277.00

TQEX

GENMAB A/S

16-Apr-2025

12:39:15 PM

25

1277.00

CEUX

GENMAB A/S

16-Apr-2025

12:42:35 PM

35

1277.00

XCSE

GENMAB A/S

16-Apr-2025

12:42:35 PM

65

1276.00

CEUX

GENMAB A/S

16-Apr-2025

12:43:13 PM

24

1276.50

AQEU

GENMAB A/S

16-Apr-2025

12:43:26 PM

3

1276.50

AQEU

GENMAB A/S

16-Apr-2025

12:45:45 PM

87

1276.00

XCSE

GENMAB A/S

16-Apr-2025

12:45:45 PM

22

1276.00

TQEX

GENMAB A/S

16-Apr-2025

12:45:45 PM

26

1276.00

CEUX

GENMAB A/S

16-Apr-2025

12:47:31 PM

93

1276.50

XCSE

GENMAB A/S

16-Apr-2025

12:47:31 PM

24

1276.50

CEUX

GENMAB A/S

16-Apr-2025

12:47:38 PM

2

1277.00

CEUX

GENMAB A/S

16-Apr-2025

12:47:38 PM

66

1276.50

CEUX

GENMAB A/S

16-Apr-2025

12:47:42 PM

36

1277.50

CEUX

GENMAB A/S

16-Apr-2025

12:53:21 PM

9

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:53:21 PM

31

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:53:35 PM

25

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:53:35 PM

19

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:53:56 PM

13

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:54:00 PM

36

1280.00

CEUX

GENMAB A/S

16-Apr-2025

12:54:01 PM

36

1280.00

CEUX

GENMAB A/S

16-Apr-2025

12:54:08 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:54:08 PM

56

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:54:08 PM

34

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:54:08 PM

36

1280.00

CEUX

GENMAB A/S

16-Apr-2025

12:54:47 PM

15

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:54:47 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:54:47 PM

15

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:54:47 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:54:47 PM

13

1280.00

XCSE

160

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

12:55:24 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:55:24 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:55:24 PM

2

1280.00

XCSE

GENMAB A/S

16-Apr-2025

12:55:24 PM

17

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:55:45 PM

63

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:55:45 PM

7

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:57:04 PM

31

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:57:04 PM

36

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:57:04 PM

17

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:57:10 PM

36

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:57:15 PM

2

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:57:36 PM

86

1279.00

XCSE

GENMAB A/S

16-Apr-2025

12:57:36 PM

44

1279.50

XCSE

GENMAB A/S

16-Apr-2025

12:57:36 PM

36

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:57:36 PM

49

1279.50

CEUX

GENMAB A/S

16-Apr-2025

12:58:40 PM

49

1278.50

TQEX

GENMAB A/S

16-Apr-2025

12:58:40 PM

87

1278.50

AQEU

GENMAB A/S

16-Apr-2025

12:58:40 PM

93

1278.50

CEUX

GENMAB A/S

16-Apr-2025

12:58:40 PM

36

1278.50

CEUX

GENMAB A/S

16-Apr-2025

1:01:55 PM

65

1278.50

CEUX

GENMAB A/S

16-Apr-2025

1:01:55 PM

24

1278.50

CEUX

GENMAB A/S

16-Apr-2025

1:03:25 PM

86

1278.50

XCSE

GENMAB A/S

16-Apr-2025

1:03:25 PM

48

1278.50

TQEX

GENMAB A/S

16-Apr-2025

1:03:29 PM

2

1278.50

AQEU

GENMAB A/S

16-Apr-2025

1:03:42 PM

73

1278.50

AQEU

GENMAB A/S

16-Apr-2025

1:04:05 PM

15

1278.50

CEUX

GENMAB A/S

16-Apr-2025

1:06:41 PM

31

1280.50

XCSE

GENMAB A/S

16-Apr-2025

1:06:41 PM

29

1280.50

XCSE

GENMAB A/S

16-Apr-2025

1:08:09 PM

39

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:08:09 PM

25

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:08:09 PM

27

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:10:45 PM

48

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:10:45 PM

43

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:12:20 PM

31

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:12:20 PM

36

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:12:21 PM

7

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:12:21 PM

51

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:12:21 PM

17

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:12:29 PM

31

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:12:29 PM

2

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:13:33 PM

36

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:13:34 PM

31

1281.50

XCSE

GENMAB A/S

16-Apr-2025

1:13:34 PM

50

1281.50

CEUX

161

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

1:13:41 PM

36

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:17:25 PM

39

1282.00

XCSE

GENMAB A/S

16-Apr-2025

1:17:25 PM

28

1282.00

XCSE

GENMAB A/S

16-Apr-2025

1:17:25 PM

15

1282.00

XCSE

GENMAB A/S

16-Apr-2025

1:17:25 PM

69

1281.50

CEUX

GENMAB A/S

16-Apr-2025

1:20:34 PM

92

1282.50

CEUX

GENMAB A/S

16-Apr-2025

1:20:34 PM

15

1282.50

CEUX

GENMAB A/S

16-Apr-2025

1:25:05 PM

90

1282.00

XCSE

GENMAB A/S

16-Apr-2025

1:25:05 PM

39

1282.50

XCSE

GENMAB A/S

16-Apr-2025

1:25:05 PM

29

1282.50

XCSE

GENMAB A/S

16-Apr-2025

1:25:05 PM

29

1282.50

XCSE

GENMAB A/S

16-Apr-2025

1:25:05 PM

20

1282.50

XCSE

GENMAB A/S

16-Apr-2025

1:25:05 PM

69

1282.00

TQEX

GENMAB A/S

16-Apr-2025

1:27:42 PM

50

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:27:42 PM

6

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:27:42 PM

18

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:29:02 PM

2

1283.00

AQEU

GENMAB A/S

16-Apr-2025

1:31:05 PM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:31:05 PM

85

1283.00

AQEU

GENMAB A/S

16-Apr-2025

1:32:21 PM

35

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:32:21 PM

28

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:32:21 PM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:32:21 PM

36

1283.00

CEUX

GENMAB A/S

16-Apr-2025

1:33:00 PM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:33:00 PM

12

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:33:00 PM

36

1283.00

CEUX

GENMAB A/S

16-Apr-2025

1:33:00 PM

77

1282.50

CEUX

GENMAB A/S

16-Apr-2025

1:33:01 PM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:33:05 PM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:33:05 PM

35

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:33:05 PM

39

1283.00

XCSE

GENMAB A/S

16-Apr-2025

1:33:05 PM

9

1282.50

CEUX

GENMAB A/S

16-Apr-2025

1:33:09 PM

14

1282.00

AQEU

GENMAB A/S

16-Apr-2025

1:33:11 PM

99

1282.50

CEUX

GENMAB A/S

16-Apr-2025

1:33:21 PM

68

1282.50

CEUX

GENMAB A/S

16-Apr-2025

1:33:43 PM

39

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:33:43 PM

16

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:33:43 PM

16

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:33:44 PM

36

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:36:06 PM

93

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:36:06 PM

29

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:36:06 PM

77

1283.50

TQEX

GENMAB A/S

16-Apr-2025

1:36:06 PM

93

1283.50

CEUX

162

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

1:36:06 PM

36

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:36:12 PM

8

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:38:25 PM

89

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:38:25 PM

80

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:38:25 PM

10

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:38:25 PM

23

1283.50

CEUX

GENMAB A/S

16-Apr-2025

1:38:26 PM

47

1283.50

XCSE

GENMAB A/S

16-Apr-2025

1:42:55 PM

92

1284.00

XCSE

GENMAB A/S

16-Apr-2025

1:45:12 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:45:17 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:45:35 PM

13

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:45:37 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:45:56 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:46:04 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:46:47 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:46:47 PM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:46:47 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:47:00 PM

2

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:00 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:00 PM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:45 PM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:45 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:55 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:55 PM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:47:55 PM

33

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:48:01 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:48:01 PM

2

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:48:29 PM

2

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:48:29 PM

17

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:48:34 PM

14

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:48:37 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:48:37 PM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:48:37 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:49:00 PM

39

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:49:00 PM

37

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:49:00 PM

41

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:50:00 PM

31

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:50:04 PM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:50:04 PM

42

1285.00

XCSE

GENMAB A/S

16-Apr-2025

1:51:32 PM

88

1285.50

XCSE

GENMAB A/S

16-Apr-2025

1:53:43 PM

71

1285.00

TQEX

GENMAB A/S

16-Apr-2025

1:53:43 PM

90

1285.00

CEUX

GENMAB A/S

16-Apr-2025

1:53:49 PM

15

1285.50

CEUX

163

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

1:53:55 PM

15

1285.50

CEUX

GENMAB A/S

16-Apr-2025

1:53:56 PM

12

1285.50

CEUX

GENMAB A/S

16-Apr-2025

1:54:25 PM

15

1285.50

CEUX

GENMAB A/S

16-Apr-2025

1:55:39 PM

39

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:39 PM

15

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:39 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:39 PM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:40 PM

91

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:40 PM

2

1286.50

AQEU

GENMAB A/S

16-Apr-2025

1:55:40 PM

22

1286.50

AQEU

GENMAB A/S

16-Apr-2025

1:55:40 PM

90

1286.50

CEUX

GENMAB A/S

16-Apr-2025

1:55:45 PM

35

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

15

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

39

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

24

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

4

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

24

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

45

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:55:45 PM

15

1286.50

AQEU

GENMAB A/S

16-Apr-2025

1:55:45 PM

49

1286.50

AQEU

GENMAB A/S

16-Apr-2025

1:55:45 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

1:56:01 PM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:56:01 PM

39

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:56:01 PM

11

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:56:01 PM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:56:01 PM

67

1286.00

TQEX

GENMAB A/S

16-Apr-2025

1:56:01 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

1:56:13 PM

35

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:56:13 PM

26

1286.50

XCSE

GENMAB A/S

16-Apr-2025

1:56:13 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

1:56:13 PM

51

1286.50

CEUX

GENMAB A/S

16-Apr-2025

1:58:35 PM

10

1286.00

TQEX

GENMAB A/S

16-Apr-2025

2:04:25 PM

86

1286.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:03 PM

91

1286.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:03 PM

2

1286.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:03 PM

73

1286.50

TQEX

GENMAB A/S

16-Apr-2025

2:06:03 PM

61

1286.00

TQEX

GENMAB A/S

16-Apr-2025

2:06:03 PM

93

1286.50

AQEU

GENMAB A/S

16-Apr-2025

2:06:03 PM

30

1287.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:03 PM

5

1286.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:04 PM

44

1286.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:04 PM

16

1286.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:05 PM

17

1286.50

CEUX

164

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:06:05 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:06 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:14 PM

15

1286.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

92

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

91

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

92

1283.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

88

1281.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

35

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

13

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

31

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

9

1282.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

35

1281.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

35

1281.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

17

1281.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

14

1281.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

13

1281.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

3

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

2

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

10

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

77

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

87

1279.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

8

1277.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

2

1277.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

79

1277.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:27 PM

48

1286.00

TQEX

GENMAB A/S

16-Apr-2025

2:06:27 PM

20

1285.00

TQEX

GENMAB A/S

16-Apr-2025

2:06:27 PM

75

1284.00

TQEX

GENMAB A/S

16-Apr-2025

2:06:27 PM

90

1285.50

AQEU

GENMAB A/S

16-Apr-2025

2:06:27 PM

89

1284.50

AQEU

GENMAB A/S

16-Apr-2025

2:06:27 PM

86

1283.50

AQEU

GENMAB A/S

16-Apr-2025

2:06:27 PM

28

1284.50

AQEU

GENMAB A/S

16-Apr-2025

2:06:27 PM

93

1285.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

87

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

89

1283.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

36

1285.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

21

1286.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

7

1286.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

50

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

8

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

31

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

93

1283.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

93

1281.50

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

28

1280.00

CEUX

165

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:06:27 PM

27

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

17

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

18

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:27 PM

3

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:28 PM

117

1279.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:29 PM

91

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:30 PM

89

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:30 PM

35

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:30 PM

44

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:30 PM

15

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:30 PM

23

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:30 PM

41

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:30 PM

52

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:31 PM

35

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

13

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

13

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

39

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

31

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

39

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

36

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:06:32 PM

93

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:33 PM

89

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:33 PM

35

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:33 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:33 PM

43

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:33 PM

88

1280.00

CEUX

GENMAB A/S

16-Apr-2025

2:06:47 PM

100

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:06:47 PM

17

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:07:05 PM

15

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:07:05 PM

36

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:07:06 PM

13

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:07:06 PM

37

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:07:29 PM

25

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:07:29 PM

15

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:03 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:04 PM

3

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:04 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:06 PM

2

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:06 PM

39

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:06 PM

14

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:06 PM

14

1280.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:06 PM

93

1279.00

XCSE

GENMAB A/S

16-Apr-2025

2:08:06 PM

11

1279.00

CEUX

166

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:08:06 PM

21

1279.00

CEUX

GENMAB A/S

16-Apr-2025

2:08:57 PM

6

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:08:57 PM

80

1280.50

XCSE

GENMAB A/S

16-Apr-2025

2:10:12 PM

91

1283.50

XCSE

GENMAB A/S

16-Apr-2025

2:11:01 PM

35

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:26 PM

25

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:26 PM

35

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

17

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

25

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

35

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

39

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

14

1283.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

26

1283.00

XCSE

GENMAB A/S

16-Apr-2025

2:11:35 PM

26

1283.00

AQEU

GENMAB A/S

16-Apr-2025

2:11:35 PM

15

1283.50

CEUX

GENMAB A/S

16-Apr-2025

2:11:35 PM

86

1283.00

CEUX

GENMAB A/S

16-Apr-2025

2:12:27 PM

89

1282.50

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

26

1282.50

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

39

1282.50

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

9

1282.50

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

35

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

8

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

62

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

35

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

13

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

7

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

13

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

39

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

15

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:27 PM

89

1282.00

CEUX

GENMAB A/S

16-Apr-2025

2:12:30 PM

35

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:30 PM

39

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:31 PM

35

1281.50

XCSE

GENMAB A/S

16-Apr-2025

2:12:31 PM

35

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:31 PM

39

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:12:31 PM

8

1282.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:04 PM

35

1283.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:10 PM

23

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:10 PM

16

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:10 PM

14

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:10 PM

15

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:11 PM

39

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:13:11 PM

19

1284.00

XCSE

167

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:13:11 PM

9

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:15:15 PM

86

1285.00

XCSE

GENMAB A/S

16-Apr-2025

2:17:15 PM

91

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:18:00 PM

3

1285.00

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

91

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

32

1284.00

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

28

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

18

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

28

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

39

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:18:32 PM

14

1284.50

TQEX

GENMAB A/S

16-Apr-2025

2:18:32 PM

12

1284.50

TQEX

GENMAB A/S

16-Apr-2025

2:18:32 PM

26

1284.00

AQEU

GENMAB A/S

16-Apr-2025

2:18:32 PM

25

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:18:32 PM

36

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:18:32 PM

51

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:18:35 PM

19

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:18:35 PM

35

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:19:31 PM

27

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:19:55 PM

88

1284.50

XCSE

GENMAB A/S

16-Apr-2025

2:19:55 PM

44

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:21:15 PM

48

1284.50

CEUX

GENMAB A/S

16-Apr-2025

2:22:55 PM

90

1285.00

XCSE

GENMAB A/S

16-Apr-2025

2:22:55 PM

39

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:22:55 PM

30

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:22:55 PM

18

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:22:55 PM

30

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:22:55 PM

33

1285.00

AQEU

GENMAB A/S

16-Apr-2025

2:22:55 PM

93

1285.00

CEUX

GENMAB A/S

16-Apr-2025

2:22:59 PM

8

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:22:59 PM

1

1285.50

XCSE

GENMAB A/S

16-Apr-2025

2:26:53 PM

40

1287.00

CEUX

GENMAB A/S

16-Apr-2025

2:26:53 PM

18

1287.00

CEUX

GENMAB A/S

16-Apr-2025

2:26:53 PM

18

1287.00

CEUX

GENMAB A/S

16-Apr-2025

2:26:53 PM

12

1287.00

CEUX

GENMAB A/S

16-Apr-2025

2:26:53 PM

45

1286.50

CEUX

GENMAB A/S

16-Apr-2025

2:28:23 PM

23

1287.50

XCSE

GENMAB A/S

16-Apr-2025

2:28:23 PM

21

1287.50

CEUX

GENMAB A/S

16-Apr-2025

2:28:49 PM

6

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:28:49 PM

3

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:28:49 PM

12

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:29:11 PM

8

1288.00

XCSE

168

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:30:08 PM

9

1288.50

CEUX

GENMAB A/S

16-Apr-2025

2:30:08 PM

7

1288.50

CEUX

GENMAB A/S

16-Apr-2025

2:31:09 PM

29

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:31:09 PM

52

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:31:09 PM

38

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:31:09 PM

62

1289.00

TQEX

GENMAB A/S

16-Apr-2025

2:31:09 PM

49

1288.50

AQEU

GENMAB A/S

16-Apr-2025

2:31:09 PM

91

1288.50

CEUX

GENMAB A/S

16-Apr-2025

2:31:09 PM

15

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:32:17 PM

87

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:32:17 PM

13

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:32:17 PM

30

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:32:17 PM

46

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:32:18 PM

27

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:32:18 PM

41

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:32:18 PM

30

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:32:18 PM

14

1289.00

TQEX

GENMAB A/S

16-Apr-2025

2:32:18 PM

34

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:33:12 PM

88

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:12 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:12 PM

44

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:12 PM

41

1290.00

TQEX

GENMAB A/S

16-Apr-2025

2:33:12 PM

39

1290.50

AQEU

GENMAB A/S

16-Apr-2025

2:33:12 PM

90

1290.00

CEUX

GENMAB A/S

16-Apr-2025

2:33:16 PM

87

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

39

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

13

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

39

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

18

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

8

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

39

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

15

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

44

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:33:16 PM

12

1289.00

TQEX

GENMAB A/S

16-Apr-2025

2:33:16 PM

40

1289.50

AQEU

GENMAB A/S

16-Apr-2025

2:33:16 PM

92

1288.50

CEUX

GENMAB A/S

16-Apr-2025

2:35:25 PM

1

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:35:25 PM

2

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:37:03 PM

41

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:37:03 PM

46

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:37:03 PM

37

1291.50

AQEU

GENMAB A/S

16-Apr-2025

2:37:03 PM

91

1291.50

CEUX

GENMAB A/S

16-Apr-2025

2:38:24 PM

35

1291.50

XCSE

169

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:38:24 PM

39

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

27

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

16

1291.50

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

35

1291.00

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

15

1291.00

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

36

1291.00

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

86

1290.50

XCSE

GENMAB A/S

16-Apr-2025

2:38:24 PM

26

1290.50

TQEX

GENMAB A/S

16-Apr-2025

2:38:24 PM

38

1290.50

AQEU

GENMAB A/S

16-Apr-2025

2:38:24 PM

34

1291.50

CEUX

GENMAB A/S

16-Apr-2025

2:38:24 PM

90

1290.50

CEUX

GENMAB A/S

16-Apr-2025

2:39:49 PM

27

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:39:49 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:39:49 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:39:49 PM

16

1289.50

TQEX

GENMAB A/S

16-Apr-2025

2:39:49 PM

10

1289.50

TQEX

GENMAB A/S

16-Apr-2025

2:39:49 PM

83

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:39:49 PM

8

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:40:12 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:12 PM

22

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:12 PM

2

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

35

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

26

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:40:15 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:11 PM

18

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:11 PM

35

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:11 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:11 PM

25

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

47

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:12 PM

47

1290.00

XCSE

170

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:41:12 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:14 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:14 PM

47

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:14 PM

31

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:14 PM

31

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:41:14 PM

52

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:41:17 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:17 PM

47

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:17 PM

31

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:17 PM

10

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:41:18 PM

47

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:20 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:20 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:41:20 PM

41

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:42:59 PM

12

1290.00

XCSE

GENMAB A/S

16-Apr-2025

2:44:27 PM

10

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:44:27 PM

81

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:44:27 PM

35

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:44:27 PM

14

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:44:27 PM

36

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:44:27 PM

29

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:44:27 PM

85

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:44:29 PM

93

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:45:25 PM

6

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:46:45 PM

88

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:47:42 PM

39

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:47:42 PM

22

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:47:42 PM

35

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:47:42 PM

2

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:47:42 PM

19

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:47:42 PM

44

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:47:42 PM

48

1289.00

CEUX

GENMAB A/S

16-Apr-2025

2:48:16 PM

39

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:16 PM

12

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:16 PM

45

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:16 PM

21

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:25 PM

39

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:25 PM

45

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:25 PM

33

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:33 PM

49

1289.50

TQEX

GENMAB A/S

16-Apr-2025

2:48:34 PM

35

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:34 PM

15

1289.50

XCSE

GENMAB A/S

16-Apr-2025

2:48:34 PM

45

1289.50

XCSE

171

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

2:48:34 PM

16

1289.50

TQEX

GENMAB A/S

16-Apr-2025

2:48:34 PM

32

1289.50

CEUX

GENMAB A/S

16-Apr-2025

2:48:35 PM

90

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:48:43 PM

35

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:48:43 PM

45

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:49:05 PM

28

1288.50

TQEX

GENMAB A/S

16-Apr-2025

2:49:11 PM

10

1288.50

AQEU

GENMAB A/S

16-Apr-2025

2:49:35 PM

16

1288.50

AQEU

GENMAB A/S

16-Apr-2025

2:49:40 PM

93

1288.00

XCSE

GENMAB A/S

16-Apr-2025

2:49:40 PM

36

1288.50

CEUX

GENMAB A/S

16-Apr-2025

2:49:41 PM

80

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:49:41 PM

11

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:49:42 PM

34

1288.00

XCSE

GENMAB A/S

16-Apr-2025

2:49:49 PM

12

1288.50

XCSE

GENMAB A/S

16-Apr-2025

2:49:49 PM

39

1288.50

XCSE

GENMAB A/S

16-Apr-2025

2:49:49 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

2:50:10 PM

18

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:51:15 PM

87

1288.00

XCSE

GENMAB A/S

16-Apr-2025

2:51:15 PM

71

1288.00

CEUX

GENMAB A/S

16-Apr-2025

2:51:44 PM

16

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:52:05 PM

14

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:53:00 PM

3

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:53:00 PM

30

1289.00

XCSE

GENMAB A/S

16-Apr-2025

2:53:15 PM

93

1288.50

XCSE

GENMAB A/S

16-Apr-2025

2:53:15 PM

20

1288.50

TQEX

GENMAB A/S

16-Apr-2025

2:53:15 PM

86

1288.50

CEUX

GENMAB A/S

16-Apr-2025

2:55:14 PM

1

1290.50

TQEX

GENMAB A/S

16-Apr-2025

2:55:14 PM

36

1290.50

TQEX

GENMAB A/S

16-Apr-2025

2:57:55 PM

78

1290.00

CEUX

GENMAB A/S

16-Apr-2025

2:58:00 PM

48

1290.50

XCSE

GENMAB A/S

16-Apr-2025

2:58:00 PM

2

1290.50

XCSE

GENMAB A/S

16-Apr-2025

2:58:00 PM

17

1290.50

CEUX

GENMAB A/S

16-Apr-2025

2:58:15 PM

7

1290.50

TQEX

GENMAB A/S

16-Apr-2025

2:58:16 PM

31

1290.50

TQEX

GENMAB A/S

16-Apr-2025

2:58:16 PM

11

1291.00

CEUX

GENMAB A/S

16-Apr-2025

2:59:43 PM

90

1291.00

XCSE

GENMAB A/S

16-Apr-2025

2:59:43 PM

23

1291.00

CEUX

GENMAB A/S

16-Apr-2025

2:59:43 PM

70

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:00:35 PM

49

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:00:35 PM

21

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:00:35 PM

2

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:00:35 PM

13

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:01:19 PM

37

1291.50

XCSE

172

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:01:19 PM

39

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:01:20 PM

39

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:01:20 PM

37

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:01:20 PM

39

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:01:20 PM

37

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:01:20 PM

1

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:01:30 PM

87

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:01:30 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

3:02:34 PM

26

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:02:34 PM

39

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:02:34 PM

21

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:02:34 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:02:34 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:02:34 PM

44

1289.50

TQEX

GENMAB A/S

16-Apr-2025

3:02:34 PM

42

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:05:25 PM

27

1289.50

TQEX

GENMAB A/S

16-Apr-2025

3:05:25 PM

40

1289.00

CEUX

GENMAB A/S

16-Apr-2025

3:08:22 PM

76

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:08:23 PM

38

1291.00

TQEX

GENMAB A/S

16-Apr-2025

3:08:23 PM

11

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:51 PM

93

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:09:51 PM

28

1291.50

TQEX

GENMAB A/S

16-Apr-2025

3:09:51 PM

74

1291.00

AQEU

GENMAB A/S

16-Apr-2025

3:09:51 PM

87

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:52 PM

63

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:09:52 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:52 PM

7

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:52 PM

8

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:52 PM

7

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:52 PM

16

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:53 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:09:53 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:10:45 PM

92

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:10:45 PM

35

1290.00

TQEX

GENMAB A/S

16-Apr-2025

3:10:45 PM

17

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:10:45 PM

2

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:10:45 PM

68

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:10:58 PM

35

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:10:58 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:10:58 PM

1

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:11:25 PM

30

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:11:55 PM

28

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:11:55 PM

48

1289.00

CEUX

173

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:13:55 PM

5

1289.00

CEUX

GENMAB A/S

16-Apr-2025

3:14:58 PM

37

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:15:05 PM

88

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:35 PM

29

1288.50

TQEX

GENMAB A/S

16-Apr-2025

3:15:35 PM

36

1288.50

AQEU

GENMAB A/S

16-Apr-2025

3:15:35 PM

48

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:15:35 PM

38

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:15:38 PM

87

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

26

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

22

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

39

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

13

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

22

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:15:38 PM

29

1287.50

TQEX

GENMAB A/S

16-Apr-2025

3:15:38 PM

93

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:16:39 PM

100

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:16:45 PM

86

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:16:45 PM

86

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:17:05 PM

86

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:17:05 PM

71

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:17:05 PM

19

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:17:11 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:17:52 PM

4

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:18:25 PM

38

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:19:11 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:20:15 PM

36

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:20:15 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:20:18 PM

4

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:20:35 PM

117

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:20:35 PM

17

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:20:35 PM

51

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:20:35 PM

90

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:20:36 PM

26

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:20:36 PM

37

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:20:36 PM

5

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:20:36 PM

2

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:20:36 PM

16

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:20:37 PM

36

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:21:06 PM

37

1288.50

XCSE

174

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:21:06 PM

90

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:21:09 PM

91

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:21:09 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:21:09 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:21:09 PM

28

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:21:12 PM

14

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:21:51 PM

89

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:21:51 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:21:51 PM

25

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:21:51 PM

3

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:22:06 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

7

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

14

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

32

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:06 PM

21

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:22:06 PM

8

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:22:06 PM

36

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:22:07 PM

35

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

14

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

37

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

1

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

37

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

16

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:07 PM

31

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:08 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:08 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:08 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:08 PM

47

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:08 PM

89

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:45 PM

17

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:45 PM

12

1287.50

XCSE

175

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:22:45 PM

37

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:45 PM

14

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:45 PM

37

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:22:45 PM

28

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:22:45 PM

16

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:22:45 PM

93

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:22:50 PM

8

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:22:53 PM

19

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:24:40 PM

20

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:24:42 PM

54

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:24:42 PM

19

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:25:13 PM

3

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:25:13 PM

6

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:25:13 PM

6

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:25:13 PM

4

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:25:13 PM

3

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:25:32 PM

39

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:25:32 PM

14

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:25:32 PM

34

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:25:32 PM

81

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:25:32 PM

3

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:26:49 PM

12

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:27:40 PM

36

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:27:50 PM

4

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:27:50 PM

2

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:27:50 PM

2

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:27:50 PM

2

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:27:50 PM

2

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:27:50 PM

2

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:27:58 PM

26

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:28:25 PM

80

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:29:14 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:29:14 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:29:16 PM

37

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:29:16 PM

16

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:29:23 PM

90

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:30:00 PM

88

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:00 PM

3

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:30:00 PM

3

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:30:00 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:00 PM

30

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:00 PM

58

1287.50

TQEX

GENMAB A/S

16-Apr-2025

3:30:00 PM

4

1287.00

AQEU

176

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:30:00 PM

30

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:30:00 PM

15

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:30:04 PM

3

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:30:04 PM

2

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:30:04 PM

3

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:30:04 PM

3

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:30:04 PM

20

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:30:09 PM

41

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:30:10 PM

86

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:13 PM

2

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

16

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

25

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

37

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

21

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

2

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

2

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

10

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

7

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

8

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

2

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

8

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

13

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:30:40 PM

3

1289.00

TQEX

GENMAB A/S

16-Apr-2025

3:30:40 PM

37

1289.00

TQEX

GENMAB A/S

16-Apr-2025

3:30:40 PM

3

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:30:40 PM

3

1289.00

AQEU

GENMAB A/S

16-Apr-2025

3:30:40 PM

2

1289.00

AQEU

GENMAB A/S

16-Apr-2025

3:30:40 PM

2

1289.00

AQEU

GENMAB A/S

16-Apr-2025

3:30:40 PM

24

1289.00

AQEU

GENMAB A/S

16-Apr-2025

3:30:40 PM

15

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:30:40 PM

74

1289.00

CEUX

GENMAB A/S

16-Apr-2025

3:30:40 PM

12

1289.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

88

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

20

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

3

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

3

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

15

1287.50

XCSE

177

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:31:04 PM

37

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

29

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:31:04 PM

35

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:31:04 PM

4

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:31:04 PM

21

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:31:04 PM

34

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

4

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

14

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:04 PM

88

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

12

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

8

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

22

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

7

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

3

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

7

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

2

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

5

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:04 PM

3

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:05 PM

28

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:31:05 PM

87

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:31:13 PM

22

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:31:45 PM

31

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:31:45 PM

34

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:31:45 PM

14

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:04 PM

34

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:32:04 PM

36

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:05 PM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:05 PM

24

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:05 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:07 PM

21

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:07 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:07 PM

37

1288.50

XCSE

178

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:32:08 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:09 PM

14

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:09 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:09 PM

38

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

38

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

16

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:11 PM

38

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

30

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

1

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

30

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

31

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

50

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

5

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

17

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:12 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:32:12 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:32:12 PM

8

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:32:12 PM

2

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:32:12 PM

37

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:12 PM

3

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:12 PM

12

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:13 PM

17

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:13 PM

9

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:13 PM

11

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:13 PM

14

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:25 PM

37

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:32 PM

4

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:32 PM

2

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:32 PM

2

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:32 PM

7

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:32 PM

2

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:32 PM

15

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:32:33 PM

2

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:32:43 PM

93

1287.00

XCSE

179

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:32:43 PM

15

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:32:55 PM

74

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:01 PM

2

1288.50

TQEX

GENMAB A/S

16-Apr-2025

3:33:01 PM

4

1288.50

TQEX

GENMAB A/S

16-Apr-2025

3:33:01 PM

5

1288.50

TQEX

GENMAB A/S

16-Apr-2025

3:33:01 PM

85

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:01 PM

5

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:03 PM

35

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:03 PM

19

1288.50

TQEX

GENMAB A/S

16-Apr-2025

3:33:35 PM

67

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

24

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

5

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

15

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

15

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

19

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

13

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

5

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

17

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:35 PM

26

1289.50

TQEX

GENMAB A/S

16-Apr-2025

3:33:35 PM

3

1289.00

AQEU

GENMAB A/S

16-Apr-2025

3:33:35 PM

31

1289.00

AQEU

GENMAB A/S

16-Apr-2025

3:33:35 PM

89

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:35 PM

3

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:35 PM

7

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:35 PM

3

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:35 PM

2

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:36 PM

29

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:37 PM

90

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:37 PM

29

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:37 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:37 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:37 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:37 PM

32

1289.50

TQEX

GENMAB A/S

16-Apr-2025

3:33:37 PM

31

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:33:37 PM

17

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:37 PM

6

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:37 PM

69

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:37 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:33:38 PM

23

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:38 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:38 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:38 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

37

1290.00

XCSE

180

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:33:39 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

1

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:39 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

17

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

31

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:40 PM

35

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:43 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:43 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:43 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

35

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:45 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

28

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

15

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:46 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:48 PM

4

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:48 PM

15

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:48 PM

5

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:48 PM

20

1289.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:50 PM

3

1288.50

CEUX

181

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:33:50 PM

8

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:51 PM

41

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

51

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

14

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

5

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

22

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

7

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

8

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:33:51 PM

8

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:33:51 PM

18

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:33:51 PM

80

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:51 PM

15

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:51 PM

11

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:51 PM

17

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:51 PM

4

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:33:51 PM

40

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:34:26 PM

5

1291.00

AQEU

GENMAB A/S

16-Apr-2025

3:34:26 PM

5

1291.00

AQEU

GENMAB A/S

16-Apr-2025

3:34:26 PM

15

1291.00

AQEU

GENMAB A/S

16-Apr-2025

3:34:26 PM

42

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:26 PM

5

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:26 PM

15

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:26 PM

13

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:26 PM

5

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:26 PM

7

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:27 PM

7

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:27 PM

15

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:27 PM

4

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:34:27 PM

4

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:34:27 PM

50

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:27 PM

3

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:32 PM

17

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:32 PM

16

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:34 PM

89

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:34:34 PM

22

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:34:41 PM

36

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:45 PM

36

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:56 PM

76

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:56 PM

8

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:56 PM

4

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:34:56 PM

6

1291.00

CEUX

182

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:34:56 PM

3

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:56 PM

71

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:56 PM

3

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:34:56 PM

6

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:35:00 PM

3

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:35:39 PM

93

1292.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

19

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

25

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

6

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

5

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

22

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

15

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

15

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

10

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:35:39 PM

15

1291.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

2

1291.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

14

1291.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

5

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

5

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

11

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

4

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

1

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:35:39 PM

39

1292.00

AQEU

GENMAB A/S

16-Apr-2025

3:35:39 PM

36

1292.50

CEUX

GENMAB A/S

16-Apr-2025

3:35:39 PM

51

1292.00

CEUX

GENMAB A/S

16-Apr-2025

3:35:39 PM

42

1292.00

CEUX

GENMAB A/S

16-Apr-2025

3:35:39 PM

71

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:35:39 PM

20

1291.00

CEUX

GENMAB A/S

16-Apr-2025

3:36:28 PM

69

1293.00

CEUX

GENMAB A/S

16-Apr-2025

3:36:32 PM

20

1293.00

CEUX

GENMAB A/S

16-Apr-2025

3:36:34 PM

7

1292.50

AQEU

GENMAB A/S

16-Apr-2025

3:36:34 PM

6

1292.50

AQEU

GENMAB A/S

16-Apr-2025

3:36:36 PM

87

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

17

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

14

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

25

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

3

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

12

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

5

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

11

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

9

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

4

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

13

1292.50

XCSE

183

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:36:36 PM

4

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:36 PM

30

1292.50

TQEX

GENMAB A/S

16-Apr-2025

3:36:37 PM

32

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

33

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:37 PM

27

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

90

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

10

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

26

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

80

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:53 PM

82

1292.00

CEUX

GENMAB A/S

16-Apr-2025

3:36:54 PM

54

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:56 PM

1

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:36:58 PM

92

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:37:05 PM

3

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:37:05 PM

2

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:37:05 PM

7

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:37:05 PM

6

1292.00

CEUX

GENMAB A/S

16-Apr-2025

3:37:12 PM

87

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:37:12 PM

26

1293.00

AQEU

GENMAB A/S

16-Apr-2025

3:37:12 PM

90

1293.00

CEUX

GENMAB A/S

16-Apr-2025

3:37:27 PM

19

1292.00

CEUX

GENMAB A/S

16-Apr-2025

3:37:27 PM

70

1292.00

CEUX

GENMAB A/S

16-Apr-2025

3:38:12 PM

6

1294.00

CEUX

GENMAB A/S

16-Apr-2025

3:38:12 PM

3

1294.00

CEUX

GENMAB A/S

16-Apr-2025

3:38:12 PM

3

1294.00

CEUX

GENMAB A/S

16-Apr-2025

3:38:12 PM

5

1294.00

CEUX

GENMAB A/S

16-Apr-2025

3:38:14 PM

17

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:38:14 PM

3

1294.00

XCSE

GENMAB A/S

16-Apr-2025

3:38:14 PM

12

1294.00

XCSE

GENMAB A/S

16-Apr-2025

3:38:14 PM

2

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:38:14 PM

2

1293.50

XCSE

184

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:38:14 PM

2

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:38:14 PM

5

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:38:14 PM

27

1294.00

AQEU

GENMAB A/S

16-Apr-2025

3:38:14 PM

73

1294.00

CEUX

GENMAB A/S

16-Apr-2025

3:38:29 PM

89

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:38:29 PM

35

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:38:29 PM

90

1293.50

CEUX

GENMAB A/S

16-Apr-2025

3:38:30 PM

26

1293.50

AQEU

GENMAB A/S

16-Apr-2025

3:39:01 PM

86

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:01 PM

46

1293.50

CEUX

GENMAB A/S

16-Apr-2025

3:39:01 PM

42

1293.50

CEUX

GENMAB A/S

16-Apr-2025

3:39:02 PM

37

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:02 PM

19

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:02 PM

14

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:02 PM

17

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:02 PM

30

1293.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:02 PM

14

1293.00

TQEX

GENMAB A/S

16-Apr-2025

3:39:02 PM

12

1293.00

TQEX

GENMAB A/S

16-Apr-2025

3:39:07 PM

89

1292.50

XCSE

GENMAB A/S

16-Apr-2025

3:39:07 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:07 PM

20

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:07 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:07 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:07 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:07 PM

86

1292.50

CEUX

GENMAB A/S

16-Apr-2025

3:39:08 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:08 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:08 PM

5

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:08 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:19 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:19 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:19 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:19 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:19 PM

32

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

71

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

59

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:20 PM

5

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

9

1293.00

XCSE

185

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:39:21 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

35

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:21 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

15

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

30

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

16

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:23 PM

8

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:24 PM

14

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:24 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:24 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:24 PM

29

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:25 PM

17

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:25 PM

37

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:25 PM

11

1293.00

XCSE

GENMAB A/S

16-Apr-2025

3:39:25 PM

31

1292.00

TQEX

GENMAB A/S

16-Apr-2025

3:40:03 PM

88

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:03 PM

1

1291.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

92

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

10

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

13

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

17

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

15

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

15

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:15 PM

2

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

3

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

7

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

8

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

2

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

3

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

2

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:40:15 PM

28

1291.00

AQEU

GENMAB A/S

16-Apr-2025

3:40:15 PM

88

1291.00

CEUX

186

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:40:16 PM

86

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:22 PM

3

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:23 PM

26

1290.00

AQEU

GENMAB A/S

16-Apr-2025

3:40:23 PM

1

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:40:23 PM

87

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:40:55 PM

87

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

37

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

3

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

6

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

3

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

2

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

5

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

2

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

2

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

5

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

10

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

12

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

30

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:55 PM

26

1289.00

TQEX

GENMAB A/S

16-Apr-2025

3:40:55 PM

53

1289.00

CEUX

GENMAB A/S

16-Apr-2025

3:40:55 PM

32

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:40:55 PM

34

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:40:55 PM

20

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:40:57 PM

117

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:40:57 PM

28

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:41:02 PM

2

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:41:06 PM

4

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:41:06 PM

37

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:41:17 PM

2

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:42:08 PM

89

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:42:08 PM

50

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:42:08 PM

37

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:42:08 PM

32

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:42:08 PM

26

1290.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:01 PM

37

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:01 PM

2

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:43:01 PM

37

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:01 PM

26

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:01 PM

70

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:02 PM

45

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:02 PM

37

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:02 PM

16

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:02 PM

16

1291.00

XCSE

187

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:43:02 PM

45

1291.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:02 PM

31

1290.50

TQEX

GENMAB A/S

16-Apr-2025

3:43:02 PM

3

1290.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

87

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

37

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

5

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

14

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

8

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

4

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

7

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:15 PM

6

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

7

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

3

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

2

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:15 PM

11

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:16 PM

3

1289.50

AQEU

GENMAB A/S

16-Apr-2025

3:43:29 PM

4

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

2

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

25

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

5

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

2

1289.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

21

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

8

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:43:29 PM

37

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:43:38 PM

60

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:38 PM

28

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:43:38 PM

2

1290.00

TQEX

GENMAB A/S

16-Apr-2025

3:43:38 PM

3

1290.00

TQEX

GENMAB A/S

16-Apr-2025

3:43:38 PM

2

1290.00

TQEX

GENMAB A/S

16-Apr-2025

3:43:38 PM

8

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

16

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

10

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

4

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

5

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

25

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

11

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:38 PM

4

1290.00

CEUX

188

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:43:38 PM

7

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:43:50 PM

88

1290.50

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

60

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

16

1290.00

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

3

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

15

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

15

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

53

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:44:01 PM

88

1290.00

CEUX

GENMAB A/S

16-Apr-2025

3:44:35 PM

5

1289.50

XCSE

GENMAB A/S

16-Apr-2025

3:45:01 PM

26

1288.50

CEUX

GENMAB A/S

16-Apr-2025

3:45:11 PM

89

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:45:13 PM

20

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:45:17 PM

6

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:45:17 PM

3

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:45:17 PM

2

1288.50

XCSE

GENMAB A/S

16-Apr-2025

3:45:17 PM

5

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:17 PM

2

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:17 PM

4

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:18 PM

3

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:22 PM

10

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:23 PM

5

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:23 PM

2

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:28 PM

4

1288.00

TQEX

GENMAB A/S

16-Apr-2025

3:45:29 PM

3

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:45:29 PM

16

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:45:29 PM

3

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:45:33 PM

2

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:45:33 PM

4

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

8

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

3

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

4

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

2

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

10

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

5

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

5

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

7

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:45:33 PM

13

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:46:15 PM

89

1288.00

XCSE

GENMAB A/S

16-Apr-2025

3:46:15 PM

32

1288.00

AQEU

GENMAB A/S

16-Apr-2025

3:46:15 PM

8

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:46:15 PM

7

1288.00

CEUX

189

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:46:15 PM

6

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:46:15 PM

2

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:46:15 PM

4

1288.00

CEUX

GENMAB A/S

16-Apr-2025

3:46:49 PM

5

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:46:49 PM

4

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:46:49 PM

4

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:46:49 PM

68

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:46:49 PM

21

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:46:49 PM

2

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:46:49 PM

7

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:46:59 PM

87

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:46:59 PM

70

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:46:59 PM

37

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:46:59 PM

10

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:46:59 PM

30

1287.00

TQEX

GENMAB A/S

16-Apr-2025

3:46:59 PM

26

1287.00

AQEU

GENMAB A/S

16-Apr-2025

3:46:59 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:47:00 PM

37

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:47:00 PM

19

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:47:00 PM

100

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:47:00 PM

11

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:47:08 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:08 PM

5

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:08 PM

7

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:47:08 PM

8

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:47:08 PM

86

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:47:22 PM

26

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:22 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:25 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:25 PM

15

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:25 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:25 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:25 PM

80

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:47:25 PM

9

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:47:26 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:26 PM

14

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:26 PM

28

1286.50

AQEU

GENMAB A/S

16-Apr-2025

3:47:28 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:29 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:29 PM

2

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:29 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:30 PM

2

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:34 PM

15

1287.00

XCSE

190

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:47:35 PM

15

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

14

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

14

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

15

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

14

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

49

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

15

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

49

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:35 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:42 PM

100

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:48 PM

72

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:47:48 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:48:00 PM

23

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:48:25 PM

65

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:48:55 PM

2

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

1

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:49:50 PM

88

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:49:50 PM

2

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:49:50 PM

3

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:49:50 PM

28

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:49:50 PM

4

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

20

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

2

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

3

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

9

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

7

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:49:50 PM

4

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:50:07 PM

63

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:07 PM

54

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:07 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:07 PM

6

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:07 PM

3

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

8

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

4

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

7

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

10

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

4

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

16

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:50:08 PM

2

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:50:08 PM

8

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:50:08 PM

4

1286.00

CEUX

191

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:50:08 PM

3

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:08 PM

4

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:08 PM

6

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:08 PM

3

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:32 PM

13

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:50:32 PM

3

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:50:32 PM

22

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:50:47 PM

89

1287.50

XCSE

GENMAB A/S

16-Apr-2025

3:50:47 PM

19

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:50:50 PM

88

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:50:50 PM

4

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:50:50 PM

15

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:50:50 PM

7

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:50:50 PM

15

1287.50

AQEU

GENMAB A/S

16-Apr-2025

3:50:50 PM

16

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:50 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

3:50:50 PM

4

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:50 PM

6

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:50:50 PM

63

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:51:03 PM

93

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:51:09 PM

7

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:51:09 PM

3

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:51:09 PM

4

1286.50

AQEU

GENMAB A/S

16-Apr-2025

3:51:09 PM

9

1286.50

AQEU

GENMAB A/S

16-Apr-2025

3:51:09 PM

4

1286.50

AQEU

GENMAB A/S

16-Apr-2025

3:51:09 PM

92

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:51:09 PM

4

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:51:09 PM

2

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:51:33 PM

2

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:51:35 PM

21

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:51:35 PM

17

1286.50

AQEU

GENMAB A/S

16-Apr-2025

3:51:39 PM

4

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:51:45 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:51:45 PM

93

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:52:51 PM

5

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:52:51 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:52:51 PM

15

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:52:51 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:52:51 PM

4

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:52:51 PM

7

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:52:51 PM

2

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:52:51 PM

2

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:52:51 PM

3

1286.00

CEUX

192

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:52:51 PM

6

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:52:51 PM

69

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:53:01 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:01 PM

20

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:01 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:02 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:02 PM

11

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:02 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:02 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:53:02 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:53:03 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:03 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:53:04 PM

40

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:04 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:04 PM

40

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:04 PM

32

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:53:07 PM

95

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:53:07 PM

22

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:53:10 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:53:25 PM

20

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:25 PM

72

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:53:25 PM

27

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:53:25 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:53:25 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

3:53:25 PM

55

1286.50

TQEX

GENMAB A/S

16-Apr-2025

3:53:25 PM

59

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:53:25 PM

29

1286.50

CEUX

GENMAB A/S

16-Apr-2025

3:54:10 PM

60

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:54:10 PM

28

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:10 PM

29

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:10 PM

31

1286.50

AQEU

GENMAB A/S

16-Apr-2025

3:54:10 PM

36

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:54:10 PM

1

1287.00

CEUX

GENMAB A/S

16-Apr-2025

3:54:10 PM

14

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:54:10 PM

75

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:54:11 PM

17

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

13

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

42

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

16

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:11 PM

18

1286.50

XCSE

193

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:54:12 PM

10

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

15

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

19

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

9

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

17

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

37

1286.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

4

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:12 PM

87

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:54:13 PM

14

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:54:13 PM

7

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:54:35 PM

50

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:00 PM

87

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

46

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

5

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

10

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

5

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

5

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

1

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

2

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

25

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:00 PM

4

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

15

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

10

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

4

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

3

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

5

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

13

1286.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

3

1285.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

24

1285.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:00 PM

7

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:00 PM

7

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:00 PM

2

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:00 PM

14

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:00 PM

5

1284.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:00 PM

6

1284.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:00 PM

21

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:00 PM

69

1286.00

CEUX

194

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:55:00 PM

4

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:00 PM

32

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:03 PM

33

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:03 PM

52

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:03 PM

1

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:03 PM

5

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

46

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

6

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

3

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

16

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

16

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

30

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:07 PM

26

1285.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:07 PM

24

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:07 PM

5

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:07 PM

15

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:07 PM

5

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:07 PM

37

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

47

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:23 PM

12

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:23 PM

4

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

6

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

4

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

7

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:55:23 PM

19

1284.50

AQEU

GENMAB A/S

16-Apr-2025

3:55:23 PM

3

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

10

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

3

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

3

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

4

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

6

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

5

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:23 PM

3

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:55:24 PM

91

1284.00

XCSE

GENMAB A/S

16-Apr-2025

3:55:24 PM

26

1284.00

AQEU

GENMAB A/S

16-Apr-2025

3:55:25 PM

14

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:55:33 PM

9

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:56:25 PM

46

1284.50

XCSE

GENMAB A/S

16-Apr-2025

3:56:25 PM

46

1283.50

CEUX

GENMAB A/S

16-Apr-2025

3:56:41 PM

15

1285.00

XCSE

195

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:57:00 PM

87

1285.00

XCSE

GENMAB A/S

16-Apr-2025

3:57:25 PM

36

1286.00

CEUX

GENMAB A/S

16-Apr-2025

3:57:27 PM

14

1286.00

XCSE

GENMAB A/S

16-Apr-2025

3:57:54 PM

90

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:57:54 PM

53

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:54 PM

5

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

2

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

8

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

2

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

2

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

3

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

4

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

12

1285.50

AQEU

GENMAB A/S

16-Apr-2025

3:57:55 PM

7

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

6

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

2

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

2

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

2

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

10

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:57:55 PM

6

1285.50

CEUX

GENMAB A/S

16-Apr-2025

3:58:05 PM

92

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:21 PM

39

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:21 PM

35

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:21 PM

37

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:21 PM

37

1285.00

TQEX

GENMAB A/S

16-Apr-2025

3:58:34 PM

22

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:34 PM

37

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:34 PM

16

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:34 PM

14

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:34 PM

14

1285.50

XCSE

GENMAB A/S

16-Apr-2025

3:58:34 PM

87

1284.50

CEUX

GENMAB A/S

16-Apr-2025

3:58:55 PM

22

1285.00

XCSE

GENMAB A/S

16-Apr-2025

3:58:55 PM

66

1285.00

XCSE

GENMAB A/S

16-Apr-2025

3:58:55 PM

35

1285.00

TQEX

GENMAB A/S

16-Apr-2025

3:58:55 PM

35

1285.00

AQEU

GENMAB A/S

16-Apr-2025

3:58:55 PM

87

1285.00

CEUX

GENMAB A/S

16-Apr-2025

3:59:35 PM

15

1284.00

XCSE

GENMAB A/S

16-Apr-2025

3:59:35 PM

74

1284.00

XCSE

GENMAB A/S

16-Apr-2025

3:59:35 PM

88

1283.00

XCSE

GENMAB A/S

16-Apr-2025

3:59:35 PM

4

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:59:35 PM

23

1284.00

TQEX

GENMAB A/S

16-Apr-2025

3:59:35 PM

28

1284.00

AQEU

GENMAB A/S

16-Apr-2025

3:59:35 PM

3

1283.50

CEUX

196

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

3:59:35 PM

1

1282.50

CEUX

GENMAB A/S

16-Apr-2025

3:59:48 PM

18

1282.50

XCSE

GENMAB A/S

16-Apr-2025

3:59:48 PM

46

1282.50

TQEX

GENMAB A/S

16-Apr-2025

3:59:48 PM

90

1282.50

CEUX

GENMAB A/S

16-Apr-2025

3:59:48 PM

12

1282.50

CEUX

GENMAB A/S

16-Apr-2025

3:59:48 PM

3

1282.50

CEUX

GENMAB A/S

16-Apr-2025

3:59:58 PM

16

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:20 PM

26

1282.00

AQEU

GENMAB A/S

16-Apr-2025

4:00:26 PM

100

1282.00

XCSE

GENMAB A/S

16-Apr-2025

4:00:26 PM

45

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:26 PM

71

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:26 PM

1

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:27 PM

25

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:27 PM

30

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:27 PM

7

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:27 PM

4

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:27 PM

51

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:27 PM

88

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:34 PM

17

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:35 PM

18

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:00:36 PM

71

1281.50

CEUX

GENMAB A/S

16-Apr-2025

4:01:05 PM

7

1281.50

CEUX

GENMAB A/S

16-Apr-2025

4:01:19 PM

86

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:19 PM

9

1281.50

CEUX

GENMAB A/S

16-Apr-2025

4:01:27 PM

5

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

88

1280.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

37

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

66

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

22

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

16

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

17

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

14

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

32

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:35 PM

16

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:36 PM

32

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:36 PM

14

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:36 PM

14

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:36 PM

17

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:36 PM

37

1281.50

XCSE

GENMAB A/S

16-Apr-2025

4:01:45 PM

88

1280.00

CEUX

GENMAB A/S

16-Apr-2025

4:02:00 PM

88

1279.50

XCSE

GENMAB A/S

16-Apr-2025

4:02:00 PM

36

1280.00

CEUX

GENMAB A/S

16-Apr-2025

4:02:00 PM

50

1280.00

CEUX

197

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:02:01 PM

15

1279.50

AQEU

GENMAB A/S

16-Apr-2025

4:02:02 PM

39

1279.00

TQEX

GENMAB A/S

16-Apr-2025

4:02:02 PM

1

1279.00

TQEX

GENMAB A/S

16-Apr-2025

4:02:02 PM

16

1279.50

AQEU

GENMAB A/S

16-Apr-2025

4:02:02 PM

36

1279.50

CEUX

GENMAB A/S

16-Apr-2025

4:02:20 PM

7

1279.50

CEUX

GENMAB A/S

16-Apr-2025

4:02:35 PM

34

1280.00

CEUX

GENMAB A/S

16-Apr-2025

4:02:35 PM

59

1280.00

CEUX

GENMAB A/S

16-Apr-2025

4:02:43 PM

46

1280.50

XCSE

GENMAB A/S

16-Apr-2025

4:03:35 PM

89

1280.50

XCSE

GENMAB A/S

16-Apr-2025

4:03:35 PM

1

1280.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:42 PM

3

1280.50

XCSE

GENMAB A/S

16-Apr-2025

4:03:43 PM

19

1281.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:43 PM

24

1281.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:53 PM

38

1282.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:53 PM

2

1282.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:54 PM

12

1282.00

TQEX

GENMAB A/S

16-Apr-2025

4:03:54 PM

25

1282.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:54 PM

68

1282.00

CEUX

GENMAB A/S

16-Apr-2025

4:03:59 PM

24

1282.00

TQEX

GENMAB A/S

16-Apr-2025

4:04:06 PM

15

1282.50

CEUX

GENMAB A/S

16-Apr-2025

4:05:05 PM

46

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:05:05 PM

13

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:05:05 PM

8

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:05:05 PM

26

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:05:14 PM

87

1282.50

XCSE

GENMAB A/S

16-Apr-2025

4:05:14 PM

58

1282.50

CEUX

GENMAB A/S

16-Apr-2025

4:05:17 PM

35

1282.50

CEUX

GENMAB A/S

16-Apr-2025

4:06:35 PM

86

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:06:35 PM

40

1284.00

AQEU

GENMAB A/S

16-Apr-2025

4:06:35 PM

27

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:06:35 PM

1

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:07:16 PM

16

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:07:16 PM

2

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:07:19 PM

10

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:07:19 PM

4

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:07:35 PM

91

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

55

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

15

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

1

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

25

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

15

1285.00

XCSE

198

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:07:35 PM

5

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:35 PM

91

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:07:39 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:39 PM

24

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:44 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:44 PM

3

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:44 PM

30

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:07:50 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:07:52 PM

4

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:08:05 PM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:05 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:05 PM

6

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:05 PM

21

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:05 PM

4

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:05 PM

9

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:05 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:09 PM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:09 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:09 PM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:09 PM

46

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:09 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:09 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:08:10 PM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:10 PM

35

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:10 PM

47

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:10 PM

15

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:10 PM

16

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:10 PM

4

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:10 PM

3

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:08:55 PM

90

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:55 PM

29

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:08:58 PM

100

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:58 PM

14

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:08:58 PM

16

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:08:58 PM

101

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:09:19 PM

37

1284.50

TQEX

GENMAB A/S

16-Apr-2025

4:09:19 PM

84

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:09:19 PM

7

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:10:01 PM

92

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:10:01 PM

34

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:10:01 PM

16

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:10:01 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:10:01 PM

50

1285.00

CEUX

199

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:10:06 PM

21

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:10:42 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:10:42 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:10:42 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:10:42 PM

16

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:10:42 PM

4

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:10:42 PM

20

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:10:42 PM

8

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:10:43 PM

37

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:10:53 PM

2

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:10:53 PM

2

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:10:53 PM

85

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:10:54 PM

22

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:10:59 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:16 PM

34

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:11:16 PM

22

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:11:16 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:17 PM

18

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:11:27 PM

6

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:11:27 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:27 PM

51

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

12

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:11:33 PM

10

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:11:33 PM

46

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:11:33 PM

91

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:11:33 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:11:33 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:11:33 PM

10

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:11:33 PM

3

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:11:33 PM

11

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:11:33 PM

9

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

7

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

3

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

4

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

3

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

5

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:33 PM

38

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:11:48 PM

15

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:11:51 PM

12

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:11:51 PM

12

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:13:06 PM

2

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:11 PM

39

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:11 PM

20

1284.00

XCSE

200

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:13:11 PM

7

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

46

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

4

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

5

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

15

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

15

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

32

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:19 PM

10

1283.00

TQEX

GENMAB A/S

16-Apr-2025

4:13:19 PM

11

1283.50

AQEU

GENMAB A/S

16-Apr-2025

4:13:19 PM

25

1283.50

AQEU

GENMAB A/S

16-Apr-2025

4:13:19 PM

1

1283.50

AQEU

GENMAB A/S

16-Apr-2025

4:13:19 PM

93

1283.00

CEUX

GENMAB A/S

16-Apr-2025

4:13:20 PM

34

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

16

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

46

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

18

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

3

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

17

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

22

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

46

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

15

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

3

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

10

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

46

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

8

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

13

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

37

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:20 PM

3

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:21 PM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:21 PM

46

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:21 PM

18

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:21 PM

28

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:25 PM

14

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:25 PM

12

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:30 PM

36

1283.50

CEUX

GENMAB A/S

16-Apr-2025

4:13:30 PM

9

1283.50

CEUX

GENMAB A/S

16-Apr-2025

4:13:44 PM

93

1283.00

XCSE

GENMAB A/S

16-Apr-2025

4:13:44 PM

13

1283.00

TQEX

GENMAB A/S

16-Apr-2025

4:13:44 PM

4

1283.00

TQEX

GENMAB A/S

16-Apr-2025

4:13:45 PM

46

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:45 PM

35

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:45 PM

10

1283.50

XCSE

201

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:13:45 PM

3

1283.50

XCSE

GENMAB A/S

16-Apr-2025

4:13:59 PM

3

1282.50

AQEU

GENMAB A/S

16-Apr-2025

4:14:25 PM

26

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:14:25 PM

36

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:14:25 PM

25

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:15:21 PM

31

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:15:21 PM

35

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:15:21 PM

3

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:15:21 PM

17

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:15:21 PM

34

1284.50

AQEU

GENMAB A/S

16-Apr-2025

4:15:21 PM

20

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:15:21 PM

13

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:15:35 PM

42

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:16:10 PM

87

1285.00

XCSE

GENMAB A/S

16-Apr-2025

4:16:10 PM

5

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

4

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

3

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

2

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

7

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

3

1284.00

TQEX

GENMAB A/S

16-Apr-2025

4:16:10 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:16:10 PM

25

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:16:10 PM

50

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:16:10 PM

9

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:16:10 PM

42

1284.00

CEUX

GENMAB A/S

16-Apr-2025

4:16:12 PM

46

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:16:12 PM

15

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:16:17 PM

18

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:16:20 PM

92

1284.00

XCSE

GENMAB A/S

16-Apr-2025

4:16:20 PM

36

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:17:06 PM

89

1284.50

XCSE

GENMAB A/S

16-Apr-2025

4:17:19 PM

77

1284.50

CEUX

GENMAB A/S

16-Apr-2025

4:17:24 PM

34

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:17:24 PM

12

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:17:24 PM

20

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:17:24 PM

6

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:17:39 PM

36

1285.00

CEUX

GENMAB A/S

16-Apr-2025

4:18:05 PM

43

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:05 PM

45

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:05 PM

6

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:05 PM

2

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:05 PM

3

1285.50

XCSE

202

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:18:05 PM

2

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:05 PM

2

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:05 PM

2

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:05 PM

2

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:05 PM

5

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:05 PM

26

1285.50

AQEU

GENMAB A/S

16-Apr-2025

4:18:05 PM

13

1285.50

AQEU

GENMAB A/S

16-Apr-2025

4:18:05 PM

88

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:18:05 PM

4

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:18:05 PM

5

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:18:35 PM

7

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:35 PM

9

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:35 PM

90

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:35 PM

4

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:35 PM

8

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:35 PM

2

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:35 PM

13

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:18:37 PM

35

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:37 PM

46

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:37 PM

36

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:18:38 PM

46

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:18:38 PM

23

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:38 PM

67

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:38 PM

23

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:38 PM

4

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:39 PM

31

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:39 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:39 PM

18

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:18:49 PM

16

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:18:57 PM

17

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:19:04 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:19:04 PM

36

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:19:25 PM

87

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:19:25 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:19:25 PM

41

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:19:29 PM

17

1285.50

AQEU

GENMAB A/S

16-Apr-2025

4:19:59 PM

9

1285.50

AQEU

GENMAB A/S

16-Apr-2025

4:20:27 PM

93

1286.50

XCSE

GENMAB A/S

16-Apr-2025

4:21:00 PM

75

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:21:00 PM

13

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:21:23 PM

18

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:21:23 PM

38

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:21:29 PM

26

1287.00

TQEX

203

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:21:35 PM

87

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:21:35 PM

31

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:21:45 PM

12

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:21:45 PM

79

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:22:05 PM

22

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:22:05 PM

18

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:22:05 PM

83

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:22:52 PM

25

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:22:52 PM

5

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:22:55 PM

80

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:23:08 PM

11

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:23:25 PM

88

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:23:25 PM

25

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:23:25 PM

54

1287.50

AQEU

GENMAB A/S

16-Apr-2025

4:24:15 PM

86

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:24:15 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:24:15 PM

16

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:24:15 PM

2

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:24:15 PM

93

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:24:15 PM

42

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:24:15 PM

19

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:24:15 PM

33

1287.50

AQEU

GENMAB A/S

16-Apr-2025

4:24:58 PM

38

1288.00

AQEU

GENMAB A/S

16-Apr-2025

4:25:04 PM

33

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:04 PM

27

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:05 PM

35

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:05 PM

26

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:05 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:06 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:06 PM

20

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:06 PM

18

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:06 PM

15

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:08 PM

10

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:08 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:55 PM

89

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:25:55 PM

93

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:19 PM

43

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:19 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:19 PM

17

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:19 PM

16

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:19 PM

23

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:20 PM

26

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:20 PM

18

1287.50

XCSE

204

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:26:20 PM

46

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:20 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:23 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:26:55 PM

46

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

21

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

35

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

7

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

25

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

46

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

16

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

8

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:55 PM

34

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:26:56 PM

8

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:56 PM

17

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:56 PM

15

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:56 PM

46

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:26:56 PM

22

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:27:15 PM

91

1286.50

XCSE

GENMAB A/S

16-Apr-2025

4:27:15 PM

8

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:27:15 PM

17

1286.50

AQEU

GENMAB A/S

16-Apr-2025

4:27:15 PM

9

1286.50

AQEU

GENMAB A/S

16-Apr-2025

4:27:36 PM

31

1286.50

XCSE

GENMAB A/S

16-Apr-2025

4:27:36 PM

24

1286.50

XCSE

GENMAB A/S

16-Apr-2025

4:27:36 PM

9

1286.00

TQEX

GENMAB A/S

16-Apr-2025

4:27:36 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:27:36 PM

52

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:27:42 PM

14

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:27:42 PM

18

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:27:55 PM

15

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:28:29 PM

24

1286.00

TQEX

GENMAB A/S

16-Apr-2025

4:28:52 PM

46

1286.50

XCSE

GENMAB A/S

16-Apr-2025

4:28:55 PM

5

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:28:55 PM

36

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:28:55 PM

86

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:28:56 PM

26

1285.50

AQEU

GENMAB A/S

16-Apr-2025

4:29:10 PM

30

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:29:49 PM

86

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:29:49 PM

8

1285.50

AQEU

GENMAB A/S

16-Apr-2025

4:30:15 PM

12

1285.00

TQEX

GENMAB A/S

16-Apr-2025

4:31:04 PM

88

1285.50

XCSE

GENMAB A/S

16-Apr-2025

4:31:04 PM

35

1286.00

XCSE

205

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:31:04 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:04 PM

45

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:04 PM

7

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:04 PM

35

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:04 PM

30

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:04 PM

89

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:31:04 PM

30

1285.50

CEUX

GENMAB A/S

16-Apr-2025

4:31:04 PM

36

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:31:04 PM

9

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:31:04 PM

9

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:31:05 PM

23

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:05 PM

46

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:25 PM

21

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:31:25 PM

7

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:32:02 PM

46

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:32:02 PM

40

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:32:02 PM

3

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:32:02 PM

45

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:32:15 PM

30

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:32:46 PM

40

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:32:46 PM

51

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:32:46 PM

52

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:32:46 PM

32

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:33:15 PM

48

1287.50

TQEX

GENMAB A/S

16-Apr-2025

4:33:15 PM

13

1287.50

TQEX

GENMAB A/S

16-Apr-2025

4:33:15 PM

34

1287.50

AQEU

GENMAB A/S

16-Apr-2025

4:33:16 PM

10

1287.50

AQEU

GENMAB A/S

16-Apr-2025

4:33:24 PM

39

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:33:24 PM

35

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:33:24 PM

13

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:33:24 PM

28

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:33:24 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:24 PM

17

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:25 PM

46

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:33:25 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:26 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:26 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:29 PM

5

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:33:29 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:30 PM

17

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:36 PM

14

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:33:36 PM

43

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:33:53 PM

81

1288.00

CEUX

206

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:34:07 PM

12

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:34:22 PM

90

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:34:22 PM

35

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:34:22 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:34:22 PM

44

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:34:23 PM

7

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:34:29 PM

2

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:34:32 PM

35

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:34:32 PM

35

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:34:32 PM

35

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:34:55 PM

47

1286.50

TQEX

GENMAB A/S

16-Apr-2025

4:35:35 PM

13

1286.50

TQEX

GENMAB A/S

16-Apr-2025

4:35:35 PM

43

1286.50

AQEU

GENMAB A/S

16-Apr-2025

4:35:48 PM

35

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:35:48 PM

52

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:35:48 PM

9

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:35:48 PM

36

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:35:49 PM

21

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:36:15 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:15 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:15 PM

58

1286.50

TQEX

GENMAB A/S

16-Apr-2025

4:36:15 PM

26

1286.50

AQEU

GENMAB A/S

16-Apr-2025

4:36:16 PM

32

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:16 PM

7

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:16 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:16 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:16 PM

36

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:36:18 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:18 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:18 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:22 PM

25

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:22 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:22 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

19

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

19

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

33

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

17

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

16

1287.00

XCSE

207

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:36:23 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:23 PM

22

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

19

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

15

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

21

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

15

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:24 PM

3

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:25 PM

14

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:25 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:25 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:26 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:26 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:28 PM

16

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:28 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:28 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:28 PM

37

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:28 PM

46

1287.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:45 PM

79

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:36:45 PM

3

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:36:45 PM

9

1286.00

CEUX

GENMAB A/S

16-Apr-2025

4:36:46 PM

87

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:36:46 PM

34

1286.00

TQEX

GENMAB A/S

16-Apr-2025

4:36:47 PM

42

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:36:47 PM

22

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:36:47 PM

9

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:36:47 PM

8

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:36:47 PM

9

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:37:05 PM

73

1286.00

XCSE

GENMAB A/S

16-Apr-2025

4:37:05 PM

36

1286.50

CEUX

GENMAB A/S

16-Apr-2025

4:37:16 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:37:17 PM

4

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:37:20 PM

69

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:37:20 PM

1

1287.50

XCSE

GENMAB A/S

16-Apr-2025

4:37:20 PM

87

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:37:56 PM

59

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:37:56 PM

29

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:37:56 PM

80

1289.00

CEUX

208

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:38:04 PM

36

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:38:05 PM

36

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:38:09 PM

91

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:38:09 PM

15

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:38:35 PM

3

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:38:35 PM

37

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:38:38 PM

9

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:38:38 PM

24

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:38:38 PM

26

1288.00

TQEX

GENMAB A/S

16-Apr-2025

4:38:38 PM

36

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:39:13 PM

36

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:39:17 PM

35

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:39:17 PM

6

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:39:17 PM

23

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:39:17 PM

14

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:39:23 PM

16

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:39:45 PM

58

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:40:08 PM

7

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:40:08 PM

6

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:40:08 PM

6

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:41:25 PM

24

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:41:25 PM

66

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:41:26 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:41:26 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:41:27 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:41:59 PM

48

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:43:05 PM

92

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:43:05 PM

34

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:43:05 PM

28

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:43:05 PM

86

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:43:05 PM

51

1290.50

AQEU

GENMAB A/S

16-Apr-2025

4:43:25 PM

20

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:43:25 PM

17

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:43:25 PM

46

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:43:43 PM

16

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:43:43 PM

4

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:43:43 PM

4

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:43:43 PM

2

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:43:46 PM

18

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:43:46 PM

25

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:43:46 PM

12

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:43:47 PM

7

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:43:49 PM

36

1290.50

CEUX

209

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:44:09 PM

89

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:44:49 PM

92

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:44:49 PM

25

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:44:49 PM

30

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:44:49 PM

40

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:44:49 PM

35

1291.50

CEUX

GENMAB A/S

16-Apr-2025

4:45:07 PM

88

1291.00

CEUX

GENMAB A/S

16-Apr-2025

4:45:19 PM

39

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:45:19 PM

54

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:45:19 PM

12

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:45:19 PM

27

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:45:19 PM

4

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:45:19 PM

52

1290.50

AQEU

GENMAB A/S

16-Apr-2025

4:45:19 PM

4

1290.50

AQEU

GENMAB A/S

16-Apr-2025

4:45:45 PM

79

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:45:45 PM

2

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:05 PM

6

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:09 PM

3

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:09 PM

3

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:09 PM

13

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:09 PM

5

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:09 PM

7

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:09 PM

7

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:09 PM

3

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:09 PM

4

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:09 PM

8

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:09 PM

4

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:09 PM

25

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:12 PM

90

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:46:12 PM

6

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:12 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:46:12 PM

46

1290.00

AQEU

GENMAB A/S

16-Apr-2025

4:46:35 PM

8

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:46:37 PM

35

1289.50

AQEU

GENMAB A/S

16-Apr-2025

4:47:05 PM

28

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:47:05 PM

61

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:47:11 PM

13

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:47:11 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:47:13 PM

18

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:47:13 PM

46

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:47:13 PM

23

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:47:13 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:47:13 PM

8

1290.50

CEUX

210

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:47:13 PM

18

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:47:13 PM

25

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:47:14 PM

13

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:47:14 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:47:25 PM

77

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:47:55 PM

89

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:47:55 PM

15

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:47:55 PM

10

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:48:04 PM

22

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:48:04 PM

4

1290.00

TQEX

GENMAB A/S

16-Apr-2025

4:48:04 PM

40

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:48:10 PM

4

1290.00

TQEX

GENMAB A/S

16-Apr-2025

4:48:35 PM

13

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:48:35 PM

79

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:48:39 PM

14

1290.50

TQEX

GENMAB A/S

16-Apr-2025

4:48:39 PM

86

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:48:39 PM

45

1290.50

AQEU

GENMAB A/S

16-Apr-2025

4:48:41 PM

3

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:41 PM

7

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:48:41 PM

86

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:48:48 PM

35

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:48 PM

26

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:48 PM

46

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:48 PM

36

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:48:53 PM

7

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:53 PM

35

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:54 PM

18

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:54 PM

22

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:54 PM

46

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:58 PM

17

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:48:58 PM

46

1290.50

XCSE

GENMAB A/S

16-Apr-2025

4:49:00 PM

15

1290.00

TQEX

GENMAB A/S

16-Apr-2025

4:49:00 PM

15

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:49:15 PM

87

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:49:15 PM

25

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:49:15 PM

3

1289.50

TQEX

GENMAB A/S

16-Apr-2025

4:49:15 PM

39

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:49:15 PM

49

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:49:20 PM

29

1289.50

AQEU

GENMAB A/S

16-Apr-2025

4:49:55 PM

9

1288.50

TQEX

GENMAB A/S

16-Apr-2025

4:49:55 PM

47

1288.50

TQEX

GENMAB A/S

16-Apr-2025

4:49:55 PM

72

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:49:55 PM

21

1288.50

CEUX

211

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:49:58 PM

18

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:50:00 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:05 PM

43

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:05 PM

2

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:05 PM

12

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:50:09 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:09 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:09 PM

36

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:50:09 PM

12

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:50:18 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:18 PM

20

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:18 PM

37

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:50:18 PM

29

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:19 PM

59

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:19 PM

32

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:19 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:19 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

3

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

23

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

51

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:34 PM

30

1287.00

TQEX

GENMAB A/S

16-Apr-2025

4:50:34 PM

44

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

36

1287.50

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

14

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

12

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

6

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

19

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

14

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

6

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:34 PM

6

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:35 PM

25

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:35 PM

8

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:35 PM

36

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:55 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:55 PM

23

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:55 PM

7

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:55 PM

46

1288.00

XCSE

212

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:50:55 PM

45

1287.00

CEUX

GENMAB A/S

16-Apr-2025

4:50:56 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

17

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:56 PM

29

1287.50

TQEX

GENMAB A/S

16-Apr-2025

4:50:56 PM

1

1287.50

TQEX

GENMAB A/S

16-Apr-2025

4:50:57 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:58 PM

2

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:58 PM

46

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:50:58 PM

15

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:00 PM

19

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:00 PM

9

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:51:02 PM

23

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:51:14 PM

1

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:14 PM

3

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:14 PM

46

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:14 PM

19

1289.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:14 PM

21

1288.50

TQEX

GENMAB A/S

16-Apr-2025

4:51:14 PM

7

1288.50

TQEX

GENMAB A/S

16-Apr-2025

4:51:35 PM

89

1288.00

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

26

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

7

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

26

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

16

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

48

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

13

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

15

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:51:35 PM

88

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:51:35 PM

36

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:51:49 PM

13

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:51:49 PM

25

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:51:54 PM

9

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:52:04 PM

17

1290.50

CEUX

GENMAB A/S

16-Apr-2025

4:52:04 PM

49

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:06 PM

26

1290.00

TQEX

213

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:52:06 PM

40

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:06 PM

30

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:06 PM

26

1290.00

AQEU

GENMAB A/S

16-Apr-2025

4:52:08 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:12 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:13 PM

35

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:52:13 PM

3

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:52:13 PM

46

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:52:13 PM

33

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:52:13 PM

1

1290.00

XCSE

GENMAB A/S

16-Apr-2025

4:52:15 PM

3

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:26 PM

40

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:52:26 PM

51

1289.50

XCSE

GENMAB A/S

16-Apr-2025

4:52:26 PM

36

1290.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:26 PM

43

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:52:35 PM

76

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:35 PM

11

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:52:35 PM

27

1289.00

AQEU

GENMAB A/S

16-Apr-2025

4:52:39 PM

26

1289.00

TQEX

GENMAB A/S

16-Apr-2025

4:53:44 PM

8

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:44 PM

36

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:44 PM

43

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:54 PM

9

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:54 PM

52

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:53:54 PM

8

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:53:54 PM

8

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:53:54 PM

25

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:53:54 PM

35

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:53:54 PM

4

1288.00

CEUX

GENMAB A/S

16-Apr-2025

4:53:55 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:55 PM

46

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:55 PM

19

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:55 PM

17

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:55 PM

18

1288.50

XCSE

GENMAB A/S

16-Apr-2025

4:53:56 PM

9

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:54:14 PM

3

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:54:14 PM

30

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:54:14 PM

49

1288.50

CEUX

GENMAB A/S

16-Apr-2025

4:54:14 PM

5

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:54:14 PM

17

1289.00

CEUX

GENMAB A/S

16-Apr-2025

4:54:14 PM

69

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:54:14 PM

14

1288.50

AQEU

GENMAB A/S

16-Apr-2025

4:54:27 PM

19

1289.50

CEUX

214

​

​


Exhibit 99.1(a)

APPENDIX Share buy-back programme - Specification for April 14 – April 18, 2025

Graphic

​

​

GENMAB A/S

16-Apr-2025

4:54:27 PM

12

1289.50

CEUX

GENMAB A/S

16-Apr-2025

4:54:33 PM

59

1291.00

XCSE

GENMAB A/S

16-Apr-2025

4:54:41 PM

12

1291.00

XCSE

GENMAB A/S

16-Apr-2025

4:54:42 PM

14

1292.00

XCSE

GENMAB A/S

16-Apr-2025

4:54:42 PM

13

1292.00

CEUX

GENMAB A/S

16-Apr-2025

4:54:42 PM

69

1291.50

CEUX

GENMAB A/S

16-Apr-2025

4:54:42 PM

24

1291.50

CEUX

GENMAB A/S

16-Apr-2025

4:54:43 PM

46

1292.00

XCSE

GENMAB A/S

16-Apr-2025

4:54:43 PM

2

1292.00

XCSE

​

215

​

​