CMPX Compass Therapeutics, Inc.
Compass Therapeutics, Inc. (CMPX) Institutional Ownership
What the institutions did with CMPX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 18.0M | 10.9% |
| ORBIMED ADVISORS LLC | 15.2M | 9.2% |
| SUVRETTA CAPITAL MANAGEMENT, LLC | 14.1M | 8.5% |
| BlackRock, Inc. | 11.3M | 6.8% |
| STATE STREET CORP | 10.0M | 6.0% |
| ENAVATE SCIENCES GP, LLC | 7.8M | 4.7% |
| Vivo Capital, LLC | 7.8M | 4.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.1M | 3.7% |
| Palo Alto Investors LP | 5.8M | 3.5% |
| MILLENNIUM MANAGEMENT LLC | 4.7M | 2.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 3.8M | 2.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.8M | 2.3% |
| Qube Research & Technologies Ltd | 3.7M | 2.2% |
| Blue Owl Capital Holdings LP | 3.6M | 2.2% |
| CITADEL ADVISORS LLC | 3.6M | 2.2% |
| GOLDMAN SACHS GROUP INC | 3.5M | 2.1% |
| Rock Springs Capital Management LP | 3.5M | 2.1% |
| AQR CAPITAL MANAGEMENT LLC | 3.5M | 2.1% |
| Birchview Capital, LP | 1.7M | 1.0% |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 1.4M | 0.8% |
| Fisher Asset Management, LLC | 1.4M | 0.8% |
| ROYCE & ASSOCIATES LP | 1.3M | 0.8% |
| FMR LLC | 1.2M | 0.7% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.2M | 0.7% |
| ACADIAN ASSET MANAGEMENT LLC | 1.2M | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BVF INC/IL | Sold Out | 7.8M | 0 | -7.8M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | 8.5M | 1.2M | -7.3M |
| Palo Alto Investors LP | Increased | 1.5M | 5.8M | +4.3M |
| RTW INVESTMENTS, LP | Sold Out | 4.2M | 0 | -4.2M |
| MILLENNIUM MANAGEMENT LLC | Increased | 846.2K | 4.7M | +3.9M |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Sold Out | 3.6M | 0 | -3.6M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 200.4K | 3.5M | +3.3M |
| STATE STREET CORP | Increased | 6.7M | 10.0M | +3.3M |
| Logos Global Management LP | Sold Out | 3.2M | 0 | -3.2M |
| CITADEL ADVISORS LLC | Increased | 721.4K | 3.6M | +2.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.1M | 3.8M | +2.7M |
| Sofinnova Investments, Inc. | Sold Out | 2.1M | 0 | -2.1M |
| BRAIDWELL LP | Sold Out | 2.0M | 0 | -2.0M |
| Vivo Capital, LLC | Reduced | 9.5M | 7.8M | -1.8M |
| BlackRock, Inc. | Increased | 9.5M | 11.3M | +1.8M |
| UBS Group AG | Reduced | 2.4M | 712.8K | -1.7M |
| AMERIPRISE FINANCIAL INC | Sold Out | 1.6M | 0 | -1.6M |
| GOLDMAN SACHS GROUP INC | Increased | 2.0M | 3.5M | +1.5M |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | New | 0 | 1.4M | +1.4M |
| GREAT POINT PARTNERS LLC | Sold Out | 1.4M | 0 | -1.4M |
| TANG CAPITAL MANAGEMENT LLC | Increased | 16.8M | 18.0M | +1.2M |
| ACADIAN ASSET MANAGEMENT LLC | New | 0 | 1.2M | +1.2M |
| Qube Research & Technologies Ltd | Increased | 2.6M | 3.7M | +1.1M |
| Balyasny Asset Management L.P. | Sold Out | 1.1M | 0 | -1.1M |
| Atle Fund Management AB | Increased | 41.8K | 1.0M | +1.0M |
| Schonfeld Strategic Advisors LLC | Reduced | 1.1M | 92.2K | -983.8K |
| Blackstone Inc. | Reduced | 1.9M | 899.9K | -957.9K |
| Squarepoint Ops LLC | Increased | 50.2K | 1.0M | +957.3K |
| SILVERARC CAPITAL MANAGEMENT, LLC | Sold Out | 859.0K | 0 | -859.0K |
| NEXTBio Capital Management LP | Sold Out | 848.2K | 0 | -848.2K |
| Y-Intercept (Hong Kong) Ltd | Sold Out | 828.9K | 0 | -828.9K |
| FIRST TRUST ADVISORS LP | New | 0 | 807.0K | +807.0K |
| BARCLAYS PLC | Reduced | 790.0K | 50.4K | -739.6K |
| Nuveen, LLC | Increased | 291.0K | 1.0M | +719.6K |
| Point72 Asset Management, L.P. | New | 0 | 686.6K | +686.6K |
| Blue Owl Capital Holdings LP | Increased | 2.9M | 3.6M | +682.6K |
| FMR LLC | Reduced | 1.8M | 1.2M | -589.5K |
| CM Management, LLC | New | 0 | 550.0K | +550.0K |
| PRUDENTIAL FINANCIAL INC | Reduced | 494.3K | 21.7K | -472.6K |
| DV Trading LLC | Sold Out | 423.6K | 0 | -423.6K |
| Trexquant Investment LP | Sold Out | 421.8K | 0 | -421.8K |
| Artia Global Partners LP | New | 0 | 383.2K | +383.2K |
| MORGAN STANLEY | Increased | 360.4K | 735.2K | +374.8K |
| Jump Financial, LLC | Sold Out | 371.4K | 0 | -371.4K |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | 375.3K | 27.1K | -348.3K |
| Atom Investors LP | Sold Out | 344.9K | 0 | -344.9K |
| MARSHALL WACE, LLP | New | 0 | 334.9K | +334.9K |
| BANK OF AMERICA CORP /DE/ | Reduced | 865.6K | 566.9K | -298.7K |
| NATIXIS | New | 0 | 297.7K | +297.7K |
| TWO SIGMA INVESTMENTS, LP | Increased | 33.1K | 320.3K | +287.2K |
| Seven Fleet Capital Management LP | Reduced | 517.0K | 233.1K | -283.9K |
| ROYCE & ASSOCIATES LP | Reduced | 1.6M | 1.3M | -283.0K |
| Exome Asset Management LLC | New | 0 | 276.2K | +276.2K |
| ALGERT GLOBAL LLC | Increased | 36.8K | 308.1K | +271.3K |
| KVP Capital Advisors, LP | Increased | 500.0K | 771.0K | +271.0K |
| Caption Management, LLC | New | 0 | 263.6K | +263.6K |
| Monashee Investment Management LLC | Sold Out | 258.9K | 0 | -258.9K |
| ACUTA CAPITAL PARTNERS, LLC | Reduced | 849.1K | 595.2K | -253.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3.6M | 3.8M | +249.4K |
| PANAGORA ASSET MANAGEMENT INC | New | 0 | 222.2K | +222.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.