Compass Therapeutics, Inc.
CMPX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001738021
In the last 90 days, Compass Therapeutics, Inc. insiders filed 1 open-market purchase and 0 sales; 215 institutions reported holding it in 13F filings for Q2 2026, worth $363.4M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Compass Therapeutics, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 125
- +23 vs. Q2 2025
- Shares held
- 151.1M
- +42.8M (+39.6%) vs. Q2 2025
- Total value
- $528.7M
- +$247.3M (+87.9%) vs. Q2 2025
- New holders
- 33
- 43 more added
- Sold out
- 10
- 31 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CMPX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 215 | $363.4M |
| Q1 2026 | 201 | $921.3M |
| Q4 2025 | 173 | $881.5M |
| Q3 2025 | 125 | $528.7M |
| Q2 2025 | 103 | $281.5M |
| Q1 2025 | 108 | $206.1M |
| Q4 2024 | 92 | $147.0M |
| Q3 2024 | 79 | $169.6M |
| Q2 2024 | 82 | $93.4M |
| Q1 2024 | 78 | $187.2M |
| Q4 2023 | 77 | $134.3M |
| Q3 2023 | 76 | $176.7M |
| Q2 2023 | 73 | $287.7M |
| Q1 2023 | 73 | $266.5M |
| Q4 2022 | 55 | $401.4M |
| Q3 2022 | 38 | $145.6M |
| Q2 2022 | 34 | $163.9M |
| Q1 2022 | 34 | $85.4M |
| Q4 2021 | 37 | $201.6M |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Compass Therapeutics, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Monashee Investment Management LLC | 1,250,000 | $4.38M | 2.18% | +1,085,000+657.6% | Added |
| Royal Bank of Canada | 1,700,927 | $5.95M | 0.00% | +1,549,785+1,025.4% | Added |
| JPMorgan Chase & Co | 1,999,278 | $7.00M | 0.00% | −126,439−5.9% | Reduced |
| Sofinnova Investments, Inc. | 2,028,886 | $7.10M | 0.44% | +2,028,886 | New |
| Logos Global Management LP | 2,050,000 | $7.17M | 0.71% | +2,050,000 | New |
| RTW Investments, LP | 2,500,000 | $8.75M | 0.11% | +2,500,000 | New |
| Blue Owl Capital Holdings LP | 2,591,525 | $9.07M | 2.82% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 2,826,362 | $9.89M | 0.02% | +2,826,362 | New |
| Silverarc Capital Management, LLC | 2,833,988 | $9.92M | 1.44% | +1,584,207+126.8% | Added |
| Geode Capital Management, LLC | 2,944,469 | $10.3M | 0.00% | +625,337+27.0% | Added |
| State Street Corp | 3,106,513 | $10.9M | 0.00% | +1,135,145+57.6% | Added |
| Millennium Management LLC | 3,237,572 | $11.3M | 0.01% | +2,386,367+280.4% | Added |
| FMR LLC | 4,137,562 | $14.5M | 0.00% | +2,907+0.1% | Added |
| Rock Springs Capital Management LP | 4,474,702 | $15.7M | 0.92% | −488,253−9.8% | Reduced |
| BVF Inc | 4,750,000 | $16.6M | 0.67% | +4,750,000 | New |
| MPM Oncology Impact Management LP | 5,075,970 | $17.8M | 2.91% | −546,535−9.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 5,186,500 | $18.2M | 0.03% | +761,632+17.2% | Added |
| Vanguard Group Inc | 7,062,799 | $24.7M | 0.00% | +2,212,794+45.6% | Added |
| BlackRock, Inc. | 7,370,747 | $25.8M | 0.00% | +957,614+14.9% | Added |
| Enavate Sciences GP, LLC | 7,788,150 | $27.3M | 8.32% | 00.0% | Unchanged |
| Vivo Capital, LLC | 9,545,466 | $33.4M | 2.69% | +3,502,000+57.9% | Added |
| Blackstone Group Inc. | 9,840,108 | $34.4M | 0.15% | −185,043−1.8% | Reduced |
| Suvretta Capital Management, LLC | 14,101,159 | $49.4M | 1.50% | +6,951,666+97.2% | Added |
| OrbiMed Advisors LLC | 15,219,994 | $53.3M | 1.28% | 00.0% | Unchanged |
| Tang Capital Management LLC | 16,811,963 | $58.8M | 2.27% | +3,315,755+24.6% | Added |
| HRT Financial LP | 0 | $0 | 0.00% | −60,778−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −27,607−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −23,600−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −17,730−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −16,097−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −15,840−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −4,894−100.0% | Sold out |
| VSM Wealth Advisory, LLC | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Briaud Financial Planning, Inc | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −236−100.0% | Sold out |
| CIBC World Markets Corp | – | – | – | – | Not filed |