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ARGX · Argenx SE · Shareholders & Ownership

Track ARGX — free
$869.72 +44.11 (+5.34%) At close · Oct 20
Market Cap
$55.35B
Shares
62.89M
Volume · Oct 20 536.69K Avg daily vol (3M) 334.7K

Every disclosed holder of ARGX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns ARGX

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: shares outstanding cannot be set against these holders.

Holder group Shares % Out
Institutional (13F) 28,272,805 —
Insiders (Forms 3, 4, 5) 0 —
13D/G-only blocks 0 —
Registered funds (N-PORT, not summed) 12,133,278 —

% Out is unavailable: a foreign private issuer reports ordinary shares, a different unit from the listed shares.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ARGX

# Holder Shares
1
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
5,231,452
1.1
Fidelity Growth Company Fund
Fund S000007119 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
609,066
1.2
Fidelity OTC Portfolio
Fund S000007191 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
481,926
1.3
Fidelity Contrafund
Fund S000006037 · Registered fund · Jun 30, 2026
Fidelity Contrafund, not summed
210,533
1.4
Fidelity Puritan Fund
Fund S000007153 · Registered fund · May 31, 2026
Fidelity Puritan Trust, not summed
209,689
1.5
Fidelity Advisor Growth Opportunities Fund
Fund S000005111 · Registered fund · May 31, 2026
Fidelity Advisor Series I, not summed
181,699
2
PRICE T ROWE ASSOCIATES INC /MD/
13F CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,678,047
2.1
PRICE T ROWE ASSOCIATES INC /MD/
13G CIK 80255 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
2,675,457
2.2
T. Rowe Price Growth Stock Fund, Inc.
Fund S000002087 · Registered fund · Jun 30, 2026
T. ROWE PRICE GROWTH STOCK FUND, INC., not summed
225,019
2.3
T. Rowe Price Large-Cap Growth Fund
Fund S000002095 · Registered fund · Jun 30, 2026
T. Rowe Price Equity Funds, Inc., not summed
211,419
2.4
T. Rowe Price New Horizons Fund, Inc.
Fund S000002106 · Registered fund · Jun 30, 2026
T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
208,186
2.5
T. Rowe Price Overseas Stock Fund
Fund S000014995 · Registered fund · Jul 31, 2026
T. ROWE PRICE INTERNATIONAL FUNDS, INC., not summed
188,952
3
Jupiter Topco LLC
13F CIK 2146052 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,474,015
3.1
Janus Henderson VIT Enterprise Portfolio
Fund S000010396 · Registered fund · Jun 30, 2026
Janus Aspen Series, not summed
26,010
3.2
Janus Henderson VIT Forty Portfolio
Fund S000010406 · Registered fund · Jun 30, 2026
Janus Aspen Series, not summed
22,062
3.3
Janus Henderson VIT Overseas Portfolio
Fund S000010410 · Registered fund · Jun 30, 2026
Janus Aspen Series, not summed
17,330
3.4
Janus Henderson VIT Global Research Portfolio
Fund S000010402 · Registered fund · Jun 30, 2026
Janus Aspen Series, not summed
6,280
3.5
Janus Henderson VIT Research Portfolio
Fund S000010395 · Registered fund · Jun 30, 2026
Janus Aspen Series, not summed
1,246
4
Capital World Investors
13F CIK 1422849 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,199,770
5
Artisan Partners Limited Partnership
13F CIK 1466153 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,508,778
5.1
Artisan Mid Cap Fund
Fund S000006496 · Registered fund · Jun 30, 2026
Artisan Partners Funds Inc., not summed
169,567
5.2
Artisan Global Opportunities Fund
Fund S000023270 · Registered fund · Jun 30, 2026
Artisan Partners Funds Inc., not summed
76,920
5.3
Artisan International Fund
Fund S000006493 · Registered fund · Jun 30, 2026
Artisan Partners Funds Inc., not summed
57,401
5.4
Artisan Global Discovery Fund
Fund S000058458 · Registered fund · Jun 30, 2026
Artisan Partners Funds Inc., not summed
4,929
5.5
Artisan Global Equity Fund
Fund S000028207 · Registered fund · Jun 30, 2026
Artisan Partners Funds Inc., not summed
1,771
6
EUPAC Fund
Fund S000009618 · Registered fund · Jun 30, 2026
EUPAC Fund, not summed
1,024,240
7
Avoro Capital Advisors LLC
13F CIK 1633313 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,000,000
8
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
930,548
9
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
777,237
9.1
iShares Biotechnology ETF
Fund S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
368,177
9.2
BlackRock Health Sciences Opportunities Portfolio
Fund S000001877 · Registered fund · May 29, 2026
BlackRock Funds, not summed
88,995
9.3
iShares Health Innovation Active ETF
Fund S000069260 · Registered fund · Jul 31, 2026
BlackRock ETF Trust, not summed
250
9.4
iShares Neuroscience and Healthcare ETF
Fund S000076483 · Registered fund · Jul 31, 2026
iShares Trust, not summed
248
10
New Economy Fund
Fund S000009598 · Registered fund · May 31, 2026
New Economy Fund, not summed
713,694
11
RTW INVESTMENTS, LP
13F CIK 1493215 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
709,446
12
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
643,123
12.1
Vitality Portfolio
Fund S000074797 · Registered fund · Mar 31, 2026
MORGAN STANLEY INSTITUTIONAL FUND INC, not summed
235
12.2
E*TRADE No Fee International Index Fund
Fund S000090719 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
163
13
Janus Henderson Forty Fund
Fund S000025893 · Registered fund · Jun 30, 2026
Janus Investment Fund, not summed
518,956
14
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
443,990
14.1
Invesco American Franchise Fund
Fund S000027822 · Registered fund · May 31, 2026
AIM Counselor Series Trust (Invesco Counselor Series Trust), not summed
245,620
14.2
Invesco Main Street Fund
Fund S000064632 · Registered fund · Jul 31, 2026
AIM Equity Funds (Invesco Equity Funds), not summed
78,114
14.3
Invesco Health Care Fund
Fund S000000235 · Registered fund · Jul 31, 2026
AIM Investment Funds (Invesco Investment Funds), not summed
45,770
14.4
Invesco Discovery Large Cap Fund
Fund S000064617 · Registered fund · May 31, 2026
AIM Counselor Series Trust (Invesco Counselor Series Trust), not summed
35,198
14.5
Invesco International Growth Fund
Fund S000064628 · Registered fund · Jul 31, 2026
AIM International Mutual Funds (Invesco International Mutual Funds), not summed
30,462
15
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
400,234
16
ALLIANCEBERNSTEIN L.P.
13F CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
395,661
16.1
AB LARGE CAP GROWTH FUND INC
Fund S000010251 · Registered fund · Jun 30, 2026
AB LARGE CAP GROWTH FUND INC, not summed
67,260
16.2
AB Growth Fund
Fund S000010509 · Registered fund · Jun 30, 2026
AB PORTFOLIOS, not summed
6,970
16.3
AB Large Cap Growth Portfolio
Fund S000010432 · Registered fund · Jun 30, 2026
AB VARIABLE PRODUCTS SERIES FUND, INC., not summed
3,790
17
Janus Henderson Enterprise Fund
Fund S000010490 · Registered fund · Jun 30, 2026
Janus Investment Fund, not summed
309,064
18
Bellevue Group AG
13F CIK 1674546 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
301,000
19
SANDS CAPITAL MANAGEMENT, LLC
13F CIK 1020066 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
298,599
19.1
Sands Capital Global Growth Fund
Fund S000028356 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
13,452
20
BESSEMER GROUP INC
13F CIK 1054074 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
267,779
20.1
Old Westbury Large Cap Strategies Fund
Fund S000001858 · Registered fund · Jul 31, 2026
Old Westbury Funds Inc, not summed
150,330
20.2
Old Westbury Total Equity Fund
Fund S000090405 · Registered fund · Jul 31, 2026
Old Westbury Funds Inc, not summed
4,357
21
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
13F CIK 1644956 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
264,617
21.1
William Blair International Leaders Fund
Fund S000037763 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
28,390
21.2
William Blair International Growth Fund
Fund S000008604 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
9,470
21.3
William Blair Institutional International Growth Fund
Fund S000008605 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
6,352
21.4
William Blair Global Leaders Fund
Fund S000019315 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
385
22
SEI INVESTMENTS CO
13F CIK 350894 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
255,073
22.1
SIIT WORLD EQUITY EX-US FUND
Fund S000006765 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
10,296
22.2
SIIT SCREENED WORLD EQUITY EX-US FUND
Fund S000019597 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
299
23
Clearbridge Investments, LLC
13F CIK 1348883 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
253,776
24
JENNISON ASSOCIATES LLC
13F CIK 53417 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
226,200
25
FRANKLIN RESOURCES INC
13F CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
224,930
25.1
Franklin Biotechnology Discovery Fund
Fund S000006882 · Registered fund · Jul 31, 2026
Franklin Strategic Series, not summed
48,962
25.2
Franklin International Growth Fund
Fund S000022425 · Registered fund · Jul 31, 2026
Franklin Global Trust, not summed
28,500
25.3
Franklin Alternative Strategies Fund
Fund S000042023 · Registered fund · May 29, 2026
Franklin Alternative Strategies Funds, not summed
2,051
25.4
Franklin Allocation VIP Fund
Fund S000017299 · Registered fund · Jun 30, 2026
Franklin Templeton Variable Insurance Products Trust, not summed
480
25.5
Putnam VT Sustainable Future Fund
Fund S000003881 · Registered fund · Jun 30, 2026
Putnam Variable Trust, not summed
295
26
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
212,416
27
Pictet Asset Management Holding SA
13F CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
198,282
28
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
185,638
29
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
181,464
29.1
Columbia Cornerstone Growth Fund
Fund S000012081 · Registered fund · Jul 31, 2026
COLUMBIA FUNDS SERIES TRUST I, not summed
37,238
29.2
Variable Portfolio - Partners International Growth Fund
Fund S000028707 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
25,793
29.3
Columbia Variable Portfolio - Cornerstone Growth Fund
Fund S000019840 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
15,636
29.4
Columbia Large Cap Growth Opportunity Fund
Fund S000010797 · Registered fund · May 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
11,312
29.5
Columbia Variable Portfolio - Select Mid Cap Growth Fund
Fund S000019846 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
10,924
30
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
177,846
30.1
Goldman Sachs Mid Cap Growth Fund
Fund S000009321 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
7,361
30.2
Goldman Sachs Large Cap Equity Fund
Fund S000009315 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
4,937
30.3
Goldman Sachs Variable Insurance Trust Strategic Growth Fund
Fund S000009356 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
3,290
30.4
Goldman Sachs MarketBeta International Equity ETF
Fund S000066532 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
2,890
30.5
Goldman Sachs ActiveBeta World Equity ETF
Fund S000075069 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
2,169
31
Legal & General Group Plc
13F CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
177,164
32
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
173,193
33
Allspring Global Investments Holdings, LLC
13F CIK 1890906 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
170,829
33.1
Allspring Growth Fund
Fund S000007267 · Registered fund · Jul 31, 2026
ALLSPRING FUNDS TRUST, not summed
38,846
33.2
Allspring Large Cap Growth Fund
Fund S000007269 · Registered fund · Jul 31, 2026
ALLSPRING FUNDS TRUST, not summed
22,746
33.3
Allspring Premier Large Company Growth Fund
Fund S000029061 · Registered fund · Jul 31, 2026
ALLSPRING FUNDS TRUST, not summed
15,626
33.4
Allspring Mid Cap Growth Fund
Fund S000007346 · Registered fund · Jun 30, 2026
ALLSPRING FUNDS TRUST, not summed
7,595
33.5
Allspring Innovation Fund
Fund S000007340 · Registered fund · Jun 30, 2026
ALLSPRING FUNDS TRUST, not summed
6,667
34
Janus Henderson Global Life Sciences Fund
Fund S000010494 · Registered fund · Jun 30, 2026
Janus Investment Fund, not summed
164,585
35
BNP PARIBAS ARBITRAGE, SA
13F CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
157,958
36
1832 Asset Management L.P.
13F CIK 944388 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
157,940
37
Janus Henderson Contrarian Fund
Fund S000010475 · Registered fund · Jun 30, 2026
Janus Investment Fund, not summed
144,283
38
DEUTSCHE BANK AG\
13F CIK 948046 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
137,335
38.1
DWS Health and Wellness Fund
Fund S000006103 · Registered fund · May 31, 2026
DEUTSCHE DWS SECURITIES TRUST, not summed
2,823
39
BAMCO INC /NY/
13F CIK 1017918 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
136,654
39.1
BARON OPPORTUNITY FUND
Fund S000000585 · Registered fund · Jun 30, 2026
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND), not summed
46,869
39.2
Baron Global Opportunity Fund
Fund S000036767 · Registered fund · Jun 30, 2026
BARON SELECT FUNDS, not summed
38,884
39.3
BARON FIFTH AVENUE GROWTH FUND
Fund S000000586 · Registered fund · Jun 30, 2026
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND), not summed
19,676
39.4
Baron International Growth Fund
Fund S000024707 · Registered fund · Jun 30, 2026
BARON SELECT FUNDS, not summed
12,315
39.5
Baron Health Care Fund
Fund S000061847 · Registered fund · Jun 30, 2026
BARON SELECT FUNDS, not summed
5,200
40
BARCLAYS PLC
13F CIK 312069 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
134,427
41
LAZARD ASSET MANAGEMENT LLC
13F CIK 1207017 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
131,996
42
Checkpoint Capital L.P.
13F CIK 1977548 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
131,283
43
Bridge Builder Small/Mid Cap Growth Fund
Fund S000048336 · Registered fund · Jun 30, 2026
Bridge Builder Trust, not summed
129,194
44
EVENTIDE ASSET MANAGEMENT, LLC
13F CIK 1442891 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
125,668
44.1
Eventide Gilead Fund
Fund S000022598 · Registered fund · Jun 30, 2026
MUTUAL FUND SERIES TRUST, not summed
75,482
44.2
Eventide Healthcare & Life Sciences Fund
Fund S000039514 · Registered fund · Jun 30, 2026
MUTUAL FUND SERIES TRUST, not summed
49,193
44.3
Eventide International ETF
Fund S000096521 · Registered fund · Jul 31, 2026
Strategy Shares, not summed
152
45
AGF MANAGEMENT LTD
13F CIK 1003518 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
125,481
46
BNP PARIBAS ASSET MANAGEMENT Holding S.A.
13F CIK 1520354 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
121,786
47
LORD, ABBETT & CO. LLC
13F CIK 728100 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
108,253
47.1
Lord Abbett Growth Leaders Fund
Fund S000032915 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
66,050
47.2
Lord Abbett Growth Opportunities Fund
Fund S000006999 · Registered fund · May 31, 2026
LORD ABBETT RESEARCH FUND INC, not summed
14,814
47.3
Lord Abbett International Equity Fund
Fund S000007140 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
3,921
47.4
Lord Abbett Focused Growth Fund
Fund S000064461 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
1,621
47.5
Growth Opportunities Portfolio
Fund S000007301 · Registered fund · Jun 30, 2026
LORD ABBETT SERIES FUND INC, not summed
1,059
48
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
101,440
48.1
First Trust NYSE Arca Biotechnology Index Fund
Fund S000012478 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
94,913
48.2
First Trust Nasdaq BuyWrite Income ETF
Fund S000040305 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
4,802
49
Capital Group Global Growth Equity ETF
Fund S000074250 · Registered fund · May 31, 2026
Capital Group Global Growth Equity ETF, not summed
98,382
50
PGGM Investments
13F CIK 1472190 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
96,511

98 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 712 holders

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Key facts CIK 1697862 CUSIP 04016X101 13F (30d) 60 filings 58 filers Visit website Investor relations