Institutional Ownership
Compass Therapeutics Inc
CUSIP 20454B104COMCMPXQ1 2026
13D / 13G Filings
40
Schedule 13D/13G on record
Beneficial Filers
17
Distinct reporting persons
Largest Stake
20.4%
Max % of class reported
Institutional Holders
193
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
40 filings · latest Feb 13, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 13, 2026 | Blackstone Annex Master Fund L.P. | 13G/A | 3.4% | 6.13M | SEC |
| 2 | Jan 21, 2026 | Blackrock, Inc. | 13G | 5.2% | 9.27M | SEC |
| 3 | Nov 14, 2025 | Tang Capital Management, LLC | 13G/A | 10.0% | 17.18M | SEC |
| 4 | Nov 14, 2025 | Tang Capital Management, LLC | 13G/A | 10.0% | 17.18M | SEC |
| 5 | Nov 14, 2025 | Vivo Opportunity Fund Holdings, L.P. | 13G | 5.1% | 9.00M | SEC |
| 6 | Oct 29, 2025 | Biotechnology Value Fund L P | 13G | 5.1% | 8.75M | SEC |
| 7 | Aug 21, 2025 | Suvretta Capital Management, LLC | 13G/A | 8.2% | 14.10M | SEC |
| 8 | Aug 18, 2025 | Commander Aggregator, LP | 13D/A | 4.5% | — | SEC |
| 9 | Aug 15, 2025 | Orbimed Advisors LLC | 13D/A | 8.9% | — | SEC |
| 10 | Aug 14, 2025 | Tang Capital Management, LLC | 13G/A | 9.8% | 13.50M | SEC |
30 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Compass Therapeutics Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Tang Capital Management LLC | 16.79M | $88.82M |
| 2 | Orbimed Advisors LLC | 15.22M | $80.51M |
| 3 | Suvretta Capital Management, LLC | 14.31M | $75.69M |
| 4 | Vivo Capital, LLC | 9.55M | $50.50M |
| 5 | Blackrock, Inc. | 9.51M | $50.29M |
| 6 | Adage Capital Partners Gp, L.L.C. | 8.49M | $44.89M |
| 7 | Enavate Sciences Gp, LLC | 7.79M | $41.20M |
| 8 | Bvf Inc/Il | 7.76M | $41.08M |
| 9 | State Street Corp | 6.69M | $35.42M |
| 10 | Rtw Investments, LP | 4.19M | $22.15M |