CMPX · Compass Therapeutics, Inc. · Holdings

$0.99 +0.01 (+0.98%) At close · Oct 9

Russell 2000 member Rebalance outlook locked

Market Cap

$178.83M

180.09M

Volume · Oct 9 3.67M Avg daily vol (3M) 4.14M

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 →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 214

Total Value: $363,748,377

Total Shares: 166,095,788

Showing 1–100 of 219 holdings by value · page 1 of 3

Institutional Ownership Trend

20 quarters

Holder Concentration

Across 215 13F filers

Top Holder

10.8%

of institutional value

Top 5

41.3%

of institutional value

Top 10

60.7%

of institutional value

HHI

482

Broadly held

Showing 100 of 219

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

TANG CAPITAL MANAGEMENT LLC

$39,399,812

10.83%

17,990,782

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

Manager	Shares	Value (USD)	% of position	Discretion
TANG KEVIN	17,990,782	$39,399,812	100.0%	Other

ORBIMED ADVISORS LLC

$33,331,786

9.16%

15,219,994

SUVRETTA CAPITAL MANAGEMENT, LLC

$30,881,538

8.49%

14,101,159

BlackRock, Inc.

$24,707,097

6.79%

11,281,781

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	81,376	$178,213	0.7%	Sole
BlackRock Asset Management Canada Ltd	100	$219	0.0%	Sole
BlackRock Investment Management, LLC	369,487	$809,176	3.3%	Sole
BLACKROCK ADVISORS LLC	266,607	$583,869	2.4%	Sole
BlackRock Fund Advisors	5,445,410	$11,925,447	48.3%	Sole
BlackRock Institutional Trust Company, N.A.	4,789,632	$10,489,294	42.5%	Sole
BlackRock Asset Management Ireland Ltd	95,233	$208,560	0.8%	Sole
Aperio Group, LLC	233,936	$512,319	2.1%	Sole

STATE STREET CORP

$21,798,500

5.99%

9,953,653

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	9,953,653	$21,798,500	100.0%	Defined

ENAVATE SCIENCES GP, LLC

$17,056,048

4.69%

7,788,150

Vivo Capital, LLC

$16,987,961

4.67%

7,757,060

VANGUARD CAPITAL MANAGEMENT LLC

$13,400,132

3.68%

6,118,782

Palo Alto Investors LP

$12,771,670

3.51%

5,831,813

MILLENNIUM MANAGEMENT LLC

$10,322,010

2.84%

4,713,247

GEODE CAPITAL MANAGEMENT, LLC

$8,355,263

2.30%

3,815,189

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	543,199	$1,189,605	14.2%	Defined
Held directly	3,271,990	$7,165,658	85.8%	Defined

VANGUARD PORTFOLIO MANAGEMENT LLC

$8,258,560

2.27%

3,771,032

Qube Research & Technologies Ltd

$8,075,600

2.22%

3,687,489

Blue Owl Capital Holdings LP

$7,936,726

2.18%

3,624,076

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

Manager	Shares	Value (USD)	% of position	Discretion
Blue Owl Healthcare Opportunities Advisors LLC	3,624,076	$7,936,726	100.0%	Defined

CITADEL ADVISORS LLC

$7,819,776

2.15%

3,570,674

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	3,489,674	$7,642,386	97.7%	Defined
Held directly	81,000	$177,390	2.3%	Defined

GOLDMAN SACHS GROUP INC

$7,732,888

2.13%

3,531,000

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	2,685,743	$5,881,777	76.1%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	821,447	$1,798,968	23.3%	Defined
Goldman Sachs Trust Company, N.A. joint	23,810	$52,143	0.7%	Defined

Rock Springs Capital Management LP

$7,719,594

2.12%

3,524,929

AQR CAPITAL MANAGEMENT LLC

$7,685,007

2.11%

3,509,137

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

Manager	Shares	Value (USD)	% of position	Discretion
Petros Family Wealth, LLC	637	$1,395	0.0%	Other
RF&L WEALTH MANAGEMENT, LLC	8	$17	0.0%	Other
Compound Planning, Inc.	14	$30	0.0%	Other
Arax Advisory Partners	4,912	$10,757	0.1%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	4,594	$10,060	0.1%	Other
Stokes Family Office, LLC	514	$1,125	0.0%	Other
Held directly	3,498,458	$7,661,623	99.7%	Defined

Birchview Capital, LP

$3,668,250

1.01%

1,675,000

KINGDON CAPITAL MANAGEMENT, L.L.C.

$3,066,000

0.84%

1,400,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1 joint	1,400,000	$3,066,000	100.0%	Defined

Fisher Asset Management, LLC

$3,048,239

0.84%

1,391,890

ROYCE & ASSOCIATES LP

$2,927,548

0.80%

1,336,780

FMR LLC

$2,654,709

0.73%

1,212,196

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	1,212,196	$2,654,709	100.0%	Defined

ADAGE CAPITAL PARTNERS GP, L.L.C.

$2,598,435

0.71%

1,186,500

ACADIAN ASSET MANAGEMENT LLC

$2,543,095

0.70%

1,161,231

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

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	1,161,231	$2,543,095	100.0%	Defined

NORTHERN TRUST CORP

$2,498,599

0.69%

1,140,914

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	1,101,308	$2,411,863	96.5%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	19,029	$41,673	1.7%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	20,577	$45,063	1.8%	Other

Atle Fund Management AB

$2,296,418

0.63%

1,048,593

Nuveen, LLC

$2,213,130

0.61%

1,010,562

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	6,886	$15,080	0.7%	Defined
TIAA CREF INVESTMENT MANAGEMENT LLC joint	719,590	$1,575,902	71.2%	Defined
TEACHERS ADVISORS, LLC joint	284,086	$622,148	28.1%	Defined

Squarepoint Ops LLC

$2,206,440

0.61%

1,007,507

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	1,007,507	$2,206,440	100.0%	Defined

VANGUARD FIDUCIARY TRUST CO

$2,192,054

0.60%

1,000,938

Blackstone Inc.

$1,970,859

0.54%

899,936

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

Manager	Shares	Value (USD)	% of position	Discretion
Blackstone Alternative Asset Management L.P.	899,936	$1,970,859	100.0%	Other

FIRST TRUST ADVISORS LP

$1,767,338

0.49%

807,004

JPMORGAN CHASE & CO

$1,728,782

0.48%

789,399

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.	92,424	$202,408	11.7%	Defined
J.P. Morgan Investment Management Inc.	696,934	$1,526,285	88.3%	Defined
J.P. Morgan Securities LLC	41	$89	0.0%	Defined

KVP Capital Advisors, LP

$1,688,490

0.46%

771,000

MORGAN STANLEY

$1,610,053

0.44%

735,186

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	2,341	$5,126	0.3%	Defined
MORGAN STANLEY & CO. LLC	173,310	$379,548	23.6%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	497,005	$1,088,440	67.6%	Defined
MORGAN STANLEY SMITH BARNEY LLC	17,788	$38,955	2.4%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	44,742	$97,984	6.1%	Defined

CITIGROUP INC

$1,563,455

0.43%

713,907

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	713,907	$1,563,455	100.0%	Defined

UBS Group AG

$1,560,950

0.43%

712,763

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	712,763	$1,560,950	100.0%	Defined

Burkehill Global Management, LP

$1,533,000

0.42%

700,000

Point72 Asset Management, L.P.

$1,503,603

0.41%

686,577

ACUTA CAPITAL PARTNERS, LLC

$1,303,516

0.36%

595,213

BANK OF AMERICA CORP /DE/

$1,241,551

0.34%

566,919

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	453,922	$994,089	80.1%	Defined
BOFA SECURITIES, INC.	93,914	$205,671	16.6%	Defined
BofA Securities Europe SA	19,083	$41,791	3.4%	Defined

CM Management, LLC

$1,204,500

0.33%

550,000

DIMENSIONAL FUND ADVISORS LP

$1,185,178

0.33%

541,178

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.	13,608	$29,801	2.5%	Defined
DFA Australia Ltd.	18,003	$39,426	3.3%	Defined
Dimensional Ireland Ltd	32,356	$70,859	6.0%	Defined
Held directly	477,211	$1,045,092	88.2%	Sole

Connor, Clark & Lunn Investment Management Ltd.

$1,147,071

0.32%

523,777

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

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	523,777	$1,147,071	100.0%	Sole

Artia Global Partners LP

$839,208

0.23%

383,200

WELLINGTON MANAGEMENT GROUP LLP

$829,323

0.23%

378,687

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	113,774	$249,165	30.0%	Defined
Wellington Trust Company, NA joint	247,821	$542,727	65.4%	Defined
Wellington Management Australia Pty Ltd	17,092	$37,431	4.5%	Defined

ArrowMark Colorado Holdings LLC

$798,784

0.22%

364,742

Bank of New York Mellon Corp

$768,759

0.21%

351,032

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

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	110,903	$242,877	31.6%	Defined
The Bank of New York Mellon	240,127	$525,878	68.4%	Defined
Held directly	2	$4	0.0%	Defined

MARSHALL WACE, LLP

$733,362

0.20%

334,869

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	334,869	$733,362	100.0%	Other

TWO SIGMA INVESTMENTS, LP

$701,483

0.19%

320,312

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$675,166

0.19%

308,295

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	308,295	$675,166	100.0%	Other

ALGERT GLOBAL LLC

$674,760

0.19%

308,110

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$663,874

0.18%

303,139

NATIXIS

$651,995

0.18%

297,715

Exome Asset Management LLC

$604,801

0.17%

276,165

Caption Management, LLC

$577,233

0.16%

263,577

Seven Fleet Capital Management LP

$510,414

0.14%

233,066

DV EQUITIES, LLC

$510,414

0.14%

233,066

PANAGORA ASSET MANAGEMENT INC

$486,572

0.13%

222,179

XTX Topco Ltd

$476,292

0.13%

217,485

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	217,485	$476,292	100.0%	Defined

Orion Porfolio Solutions, LLC

$468,359

0.13%

213,863

D. E. Shaw & Co., Inc.

$447,825

0.12%

204,487

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

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	64,663	$141,611	31.6%	Defined
D. E. Shaw Investment Management, L.L.C. joint	139,824	$306,214	68.4%	Defined

Rafferty Asset Management, LLC

$416,375

0.11%

190,126

Creative Planning

$400,421

0.11%

182,841

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

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	471	$1,031	0.3%	Defined
Held directly	182,370	$399,390	99.7%	Sole

ALPS ADVISORS INC

$400,281

0.11%

182,777

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

$389,411

0.11%

177,814

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	794	$1,738	0.4%	Defined
UBS Asset Management Switzerland AG	177,020	$387,673	99.6%	Defined

Mariner, LLC

$378,477

0.10%

172,821

Swiss National Bank

$376,023

0.10%

171,700

HRT FINANCIAL LP

$372,523

0.10%

170,102

JANE STREET GROUP, LLC

$372,300

0.10%

170,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	170,000	$372,300	100.0%	Defined

ALLIANCEBERNSTEIN L.P.

$354,517

0.10%

161,880

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

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	161,880	$354,517	100.0%	Defined

Virtus Investment Advisers, LLC

$352,986

0.10%

161,181

CANADA PENSION PLAN INVESTMENT BOARD

$352,371

0.10%

160,900

RHUMBLINE ADVISERS

$346,992

0.10%

158,444

DEUTSCHE BANK AG\

$294,226

0.08%

134,350

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

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	14,554	$31,873	10.8%	Defined
DWS Investments UK Ltd	119,796	$262,353	89.2%	Defined

IEQ CAPITAL, LLC

$269,256

0.07%

122,948

ADAR1 Capital Management, LLC

$267,469

0.07%

122,132

WELLS FARGO & COMPANY/MN

$240,446

0.07%

109,793

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	109,793	$240,446	100.0%	Defined

Quadrature Capital Ltd

$237,067

0.07%

108,250

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

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	108,250	$237,067	100.0%	Other

MERCER GLOBAL ADVISORS INC /ADV

$233,388

0.06%

106,570

LOS ANGELES CAPITAL MANAGEMENT LLC

$230,197

0.06%

105,113

PRICE T ROWE ASSOCIATES INC /MD/

$228,309

0.06%

104,251

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	104,251	$228,309	100.0%	Defined

PROFUND ADVISORS LLC

$208,507

0.06%

95,209

Schonfeld Strategic Advisors LLC

$201,977

0.06%

92,227

TUDOR INVESTMENT CORP ET AL

$197,196

0.05%

90,044

Jain Global LLC

$193,381

0.05%

88,302

SmartHarvest Portfolios, LLC

$189,452

0.05%

86,508

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$183,011

0.05%

83,567

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$180,584

0.05%

82,459

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	60,373	$132,216	73.2%	Defined
Global X Management (AUS) Ltd joint	22,086	$48,368	26.8%	Defined

GROUP ONE TRADING LLC

$178,609

0.05%

81,557

Cerity Partners LLC

$177,329

0.05%

80,973

Sound Capital Solutions LLC

$175,550

0.05%

80,160

Optimize Financial Inc

$175,550

0.05%

80,160

SG Americas Securities, LLC

$167,217

0.05%

76,355

Legal & General Group Plc

$164,474

0.05%

75,103

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	11,671	$25,559	15.5%	Defined
Legal & General Investment Management Ltd joint	63,432	$138,915	84.5%	Defined

VANGUARD ASSET MANAGEMENT, Ltd

$163,568

0.04%

74,689

CITADEL ADVISORS LLC

$161,622

0.04%

73,800

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	73,800	$161,622	100.0%	Defined

MetLife Investment Management, LLC

$156,411

0.04%

71,421

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

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	71,421	$156,411	100.0%	Defined

GSA CAPITAL PARTNERS LLP

$153,692

0.04%

70,179

Invesco Ltd.

$152,900

0.04%

69,818

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	17,443	$38,199	25.0%	Defined
Invesco Trust Co joint	52,375	$114,701	75.0%	Defined

Key facts CIK 1738021 CUSIP 20454B104 13F (30d) 3 filings 3 filers Visit website Investor relations