CTMX · CytomX Therapeutics, Inc.

$3.71 +0.03 (+0.82%) At close · Sep 4

Russell 2000 member Rebalance outlook locked

Market Cap

$810.59M

217.90M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 180

Total Value: $805,886,921

Total Shares: 214,903,201

Showing 1–100 of 187 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 180 13F filers · Δ vs Mar 31, 2026

Top Holder

15.2%

−1.0 pts

Top 5

46.0%

+6.9 pts

Top 10

63.2%

+7.1 pts

HHI

589

Broadly held+76

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -1

Institutional value: -13.2%

Shares held: +8.8%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega BlackRock, Inc.	+12,331,542	17,559,822
Mid Kynam Capital Management, LP	+6,690,000	21,703,093
Mega STATE STREET CORP	+6,083,828	11,747,236
Mega BANK OF AMERICA CORP /DE/	+4,879,832	15,082,617
Mega GEODE CAPITAL MANAGEMENT, LLC	+2,612,104	4,678,716

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid Venrock Adviser, LLC	−5,000,000	4,982,124
Mega CITADEL ADVISORS LLC	−2,569,084	3,330,109
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−2,535,342	544,573
Mega MILLENNIUM MANAGEMENT LLC	−1,974,360	1,685,830
Large MARSHALL WACE, LLP	−1,113,825	3,024,351

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large TUDOR INVESTMENT CORP ET AL	1,430,987	$5,366,201
Small DV EQUITIES, LLC	714,000	$2,677,500
Mega Nuveen, LLC	448,041	$1,680,152
Mega RHUMBLINE ADVISERS	222,514	$834,427
Large Focus Partners Wealth	197,878	$742,042

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large Jefferies Financial Group Inc.	3,067,864	$14,418,960
Small Patient Square Capital LP	1,085,790	$5,103,213
Mid EVENTIDE ASSET MANAGEMENT, LLC	900,000	$4,230,000
Large Trexquant Investment LP	898,767	$4,224,204
Large Balyasny Asset Management L.P.	730,844	$3,434,966

Filter: New 47 Increased 70 Reduced 35 Sold out 48 Unchanged 28

Showing 100 of 187

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

FMR LLC

$122,681,012

15.22%

32,714,937

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	26,648,751	$99,932,816	81.5%	Defined
Fidelity Institutional Asset Management Trust Co	2,848,833	$10,683,123	8.7%	Defined
FIAM LLC	3,217,353	$12,065,073	9.8%	Defined

Kynam Capital Management, LP

$81,386,598

10.10%

21,703,093

BlackRock, Inc.

$65,849,329

8.17%

17,559,822

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	298,287	$1,118,576	1.7%	Sole
BlackRock Asset Management Canada Ltd	11,545	$43,293	0.1%	Sole
BlackRock Investment Management, LLC	532,543	$1,997,036	3.0%	Sole
BLACKROCK ADVISORS LLC	619,696	$2,323,860	3.5%	Sole
BlackRock Fund Advisors	8,927,905	$33,479,643	50.8%	Sole
BlackRock Institutional Trust Company, N.A.	6,567,220	$24,627,075	37.4%	Sole
BlackRock Fund Managers Ltd.	39,236	$147,135	0.2%	Sole
BlackRock Investment Management (UK) Ltd.	124,329	$466,233	0.7%	Sole
BlackRock Asset Management Ireland Ltd	374,706	$1,405,147	2.1%	Sole
BlackRock Asset Management Schweiz AG	26,968	$101,130	0.2%	Sole
Aperio Group, LLC	37,387	$140,201	0.2%	Sole

BANK OF AMERICA CORP /DE/

$56,559,813

7.02%

15,082,617

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	9,065,494	$33,995,602	60.1%	Defined
BOFA SECURITIES, INC.	6,017,123	$22,564,211	39.9%	Defined

STATE STREET CORP

$44,052,135

5.47%

11,747,236

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	11,747,236	$44,052,135	100.0%	Defined

PERCEPTIVE ADVISORS LLC

$39,146,943

4.86%

10,439,185

VANGUARD CAPITAL MANAGEMENT LLC

$31,970,463

3.97%

8,525,457

Point72 Asset Management, L.P.

$29,291,373

3.63%

7,811,033

WELLINGTON MANAGEMENT GROUP LLP

$19,383,601

2.41%

5,168,961

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	3,197,570	$11,990,887	61.9%	Defined
Wellington Management Singapore Pte. Ltd.	175,225	$657,093	3.4%	Defined
Wellington Management International Ltd	81,479	$305,546	1.6%	Defined
Wellington Trust Company, NA joint	1,694,957	$6,356,088	32.8%	Defined
Wellington Management Australia Pty Ltd	19,730	$73,987	0.4%	Defined

Venrock Adviser, LLC

$18,682,965

2.32%

4,982,124

BAKER BROS. ADVISORS LP

$18,659,347

2.32%

4,975,826

GEODE CAPITAL MANAGEMENT, LLC

$17,545,185

2.18%

4,678,716

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	664,244	$2,490,915	14.2%	Defined
Held directly	4,014,472	$15,054,270	85.8%	Defined

Elmind Capital, LP

$17,062,500

2.12%

4,550,000

Nextech Invest, Ltd.

$16,687,245

2.07%

4,449,932

TWO SIGMA INVESTMENTS, LP

$15,497,411

1.92%

4,132,643

Eversept Partners, LP

$13,344,363

1.66%

3,558,497

UBS Group AG

$13,006,346

1.61%

3,468,359

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	9,000	$33,750	0.3%	Defined
UBS AG	3,459,359	$12,972,596	99.7%	Defined

Siren, L.L.C.

$12,966,416

1.61%

3,457,711

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invus Group, LLC	3,457,711	$12,966,416	100.0%	Defined

ADAR1 Capital Management, LLC

$12,619,192

1.57%

3,365,118

CITADEL ADVISORS LLC

$11,664,408

1.45%

3,110,509

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	339	$1,271	0.0%	Defined
Held directly	3,110,170	$11,663,137	100.0%	Defined

MARSHALL WACE, LLP

$11,341,315

1.41%

3,024,351

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	3,024,351	$11,341,315	100.0%	Other

Woodline Partners LP

$7,650,787

0.95%

2,040,210

GOLDMAN SACHS GROUP INC

$7,513,693

0.93%

2,003,652

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	1,380,229	$5,175,858	68.9%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	605,705	$2,271,393	30.2%	Defined
Goldman Sachs Trust Company, N.A. joint	17,718	$66,442	0.9%	Other

DIMENSIONAL FUND ADVISORS LP

$6,976,087

0.87%

1,860,290

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	16,168	$60,630	0.9%	Defined
DFA Australia Ltd.	31,775	$119,156	1.7%	Defined
Dimensional Ireland Ltd	78,095	$292,856	4.2%	Defined
Held directly	1,734,252	$6,503,445	93.2%	Sole

Qube Research & Technologies Ltd

$6,842,115

0.85%

1,824,564

VANGUARD PORTFOLIO MANAGEMENT LLC

$6,566,876

0.81%

1,751,167

MILLENNIUM MANAGEMENT LLC

$6,321,862

0.78%

1,685,830

NORTHERN TRUST CORP

$6,281,935

0.78%

1,675,183

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	1,581,230	$5,929,612	94.4%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	66,017	$247,563	3.9%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	27,936	$104,760	1.7%	Other

TUDOR INVESTMENT CORP ET AL

$5,177,576

0.64%

1,380,687

VANGUARD FIDUCIARY TRUST CO

$4,752,862

0.59%

1,267,430

Seven Fleet Capital Management LP

$4,070,242

0.51%

1,085,398

SPHERA FUNDS MANAGEMENT LTD.

$3,296,250

0.41%

879,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sphera Global Healthcare Management LP joint	879,000	$3,296,250	100.0%	Defined

Ally Bridge Group (NY) LLC

$2,906,250

0.36%

775,000

DV EQUITIES, LLC

$2,677,500

0.33%

714,000

GILDER GAGNON HOWE & CO LLC

$2,641,586

0.33%

704,423

Caption Management, LLC

$2,625,000

0.33%

700,000

Bank of New York Mellon Corp

$2,567,019

0.32%

684,539

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	194,113	$727,923	28.4%	Defined
The Bank of New York Mellon	301,424	$1,130,340	44.0%	Defined
Newton Investment Management North America, LLC	189,001	$708,753	27.6%	Defined
Held directly	1	$3	0.0%	Defined

DEUTSCHE BANK AG\

$2,486,391

0.31%

663,038

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investment GmbH	485,042	$1,818,907	73.2%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC	1,882	$7,057	0.3%	Defined
DWS Investments UK Ltd	176,114	$660,427	26.6%	Defined

FIRST TRUST ADVISORS LP

$2,248,860

0.28%

599,696

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$2,062,031

0.26%

549,875

Ensign Peak Advisors, Inc

$1,893,956

0.24%

505,055

RAYMOND JAMES FINANCIAL INC

$1,815,832

0.23%

484,222

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	56,800	$213,000	11.7%	Defined
Raymond James Financial Services Advisors, Inc.	3,750	$14,062	0.8%	Defined
ClariVest Asset Management LLC joint	423,672	$1,588,770	87.5%	Defined

SCHULHOFF & CO INC

$1,790,812

0.22%

477,550

Exome Asset Management LLC

$1,725,251

0.21%

460,067

Nuveen, LLC

$1,680,152

0.21%

448,041

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	70,172	$263,144	15.7%	Defined
TEACHERS ADVISORS, LLC joint	377,869	$1,417,008	84.3%	Defined

DAFNA Capital Management LLC

$1,644,026

0.20%

438,407

Caption Management, LLC

$1,575,000

0.20%

420,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,395,000

0.17%

372,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	372,000	$1,395,000	100.0%	Other

Assenagon Asset Management S.A.

$1,365,648

0.17%

364,173

Jump Financial, LLC

$1,302,750

0.16%

347,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Leap GP LLC joint	347,400	$1,302,750	100.0%	Defined

Swiss National Bank

$1,220,250

0.15%

325,400

Caption Management, LLC

$1,125,000

0.14%

300,000

CITIGROUP INC

$1,079,496

0.13%

287,866

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	287,866	$1,079,496	100.0%	Defined

LMR Partners LLP

$1,024,548

0.13%

273,213

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wabon Partners, L.P.	273,213	$1,024,548	100.0%	Sole

Tidal Investments LLC

$925,113

0.11%

246,697

Tema ETFs LLC

$858,701

0.11%

228,987

RHUMBLINE ADVISERS

$834,427

0.10%

222,514

Rafferty Asset Management, LLC

$830,163

0.10%

221,377

Invesco Ltd.

$825,767

0.10%

220,205

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	25,709	$96,408	11.7%	Defined
Invesco Trust Co joint	70,985	$266,193	32.2%	Defined
Invesco Capital Management LLC	123,511	$463,166	56.1%	Defined

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$824,171

0.10%

219,779

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Asset Management Switzerland AG	219,779	$824,171	100.0%	Defined

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$781,788

0.10%

208,477

Stonepine Capital Management, LLC

$768,750

0.10%

205,000

Focus Partners Wealth

$742,042

0.09%

197,878

MORGAN STANLEY

$715,495

0.09%

190,799

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	75	$281	0.0%	Defined
MORGAN STANLEY & CO. LLC	86,456	$324,210	45.3%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	75,247	$282,176	39.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	20,253	$75,948	10.6%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	8,768	$32,880	4.6%	Defined

Verdad Advisers, LP

$661,526

0.08%

176,407

LPL Financial LLC

$643,998

0.08%

171,733

HighVista Strategies LLC

$636,866

0.08%

169,831

WELLS FARGO & COMPANY/MN

$611,935

0.08%

163,183

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	156,338	$586,267	95.8%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	3,595	$13,481	2.2%	Defined
WELLS FARGO CLEARING SERVICES, LLC	3,250	$12,187	2.0%	Defined

AWM Investment Company, Inc.

$562,500

0.07%

150,000

PRICE T ROWE ASSOCIATES INC /MD/

$555,401

0.07%

148,107

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	148,107	$555,401	100.0%	Defined

CANADA PENSION PLAN INVESTMENT BOARD

$530,625

0.07%

141,500

CITADEL ADVISORS LLC

$491,250

0.06%

131,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	131,000	$491,250	100.0%	Defined

Walleye Capital LLC

$474,472

0.06%

126,526

BARCLAYS PLC

$474,055

0.06%

126,415

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	85,651	$321,191	67.8%	Defined
BARCLAYS CAPITAL INC.	37,134	$139,252	29.4%	Defined
Barclays Investment Solutions Ltd	3,630	$13,612	2.9%	Defined

NLB Skladi, upravljanje premozenja, d.o.o.

$468,750

0.06%

125,000

Legal & General Group Plc

$462,423

0.06%

123,313

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	17,272	$64,770	14.0%	Defined
Legal & General Investment Management Ltd joint	106,041	$397,653	86.0%	Defined

VANGUARD ASSET MANAGEMENT, Ltd

$460,848

0.06%

122,893

Velan Capital Investment Management LP

$450,000

0.06%

120,000

Squarepoint Ops LLC

$420,570

0.05%

112,152

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	112,152	$420,570	100.0%	Defined

PROFUND ADVISORS LLC

$417,667

0.05%

111,378

JPMORGAN CHASE & CO

$410,297

0.05%

109,413

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	77,095	$289,105	70.5%	Defined
J.P. Morgan Securities LLC	20,100	$75,375	18.4%	Defined
J.P. Morgan Securities plc	12,218	$45,817	11.2%	Defined

Virtus Investment Advisers, LLC

$407,636

0.05%

108,703

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$402,502

0.05%

107,334

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	81,618	$306,067	76.0%	Defined
Global X Management (AUS) Ltd joint	25,716	$96,435	24.0%	Defined

ALPS ADVISORS INC

$401,625

0.05%

107,100

MetLife Investment Management, LLC

$392,381

0.05%

104,635

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	104,635	$392,381	100.0%	Defined

ALLIANCEBERNSTEIN L.P.

$391,162

0.05%

104,310

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	104,310	$391,162	100.0%	Defined

Aspire Growth Partners LLC

$383,452

0.05%

102,254

Robertson Stephens Wealth Management, LLC

$360,000

0.04%

96,000

LANDSCAPE CAPITAL MANAGEMENT, L.L.C.

$353,399

0.04%

94,240

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Landscape High Leverage Fund, LP	17,731	$66,491	18.8%	Defined
LANDSCAPE OFFSHORE HL FUND LTD.	48,915	$183,431	51.9%	Defined
Held directly	27,594	$103,477	29.3%	Sole

ALGERT GLOBAL LLC

$340,875

0.04%

90,900

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$340,023

0.04%

90,673

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	90,673	$340,023	100.0%	Other

CITADEL ADVISORS LLC

$332,250

0.04%

88,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	88,600	$332,250	100.0%	Defined

Miller Financial Services LLC

$318,750

0.04%

85,000

Engineers Gate Manager LP

$311,737

0.04%

83,130

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$307,125

0.04%

81,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	81,900	$307,125	100.0%	Other

Zurcher Kantonalbank (Zurich Cantonalbank)

$299,310

0.04%

79,816

Vanguard Global Advisers, LLC

$268,563

0.03%

71,617

China Universal Asset Management Co., Ltd.

$242,426

0.03%

64,647

State of Wyoming

$206,201

0.03%

54,987

AMERICAN CENTURY COMPANIES INC

$205,871

0.03%

54,899

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	54,899	$205,871	100.0%	Defined

Key facts CIK 1501989 CUSIP 23284F105 13F (30d) 154 filings 154 filers Visit website Investor relations