Compass Therapeutics, Inc. - CMPX
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Aug 14, 2026 | SCHEDULE 13G/A | Vivo Opportunity Fund Holdings, L.P. | 4.0% | 7,207,573 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Vivo Opportunity, LLC | 4.0% | 7,207,573 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Vivo Opportunity Cayman Fund, L.P. | 0.3% | 549,487 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Vivo Opportunity Cayman, LLC | 0.3% | 549,487 | View |
| Aug 07, 2026 | SCHEDULE 13G | STATE STREET CORPORATION | 5.5% | 9,953,653 | View |
| May 15, 2026 | SCHEDULE 13G/A | BIOTECHNOLOGY VALUE FUND L P | 2.3% | 4,142,020 | View |
| May 15, 2026 | SCHEDULE 13G/A | BVF I GP LLC | 2.3% | 4,142,020 | View |
| May 15, 2026 | SCHEDULE 13G/A | BIOTECHNOLOGY VALUE FUND II LP | 1.7% | 3,028,951 | View |
| May 15, 2026 | SCHEDULE 13G/A | BVF II GP LLC | 1.7% | 3,028,951 | View |
| May 15, 2026 | SCHEDULE 13G/A | Biotechnology Value Trading Fund OS LP | 0.3% | 476,311 | View |
| May 15, 2026 | SCHEDULE 13G/A | BVF Partners OS Ltd. | 0.3% | 476,311 | View |
| May 15, 2026 | SCHEDULE 13G/A | BVF GP HOLDINGS LLC | 4.0% | 7,170,971 | View |
| May 15, 2026 | SCHEDULE 13G/A | BVF PARTNERS L P/IL | 4.3% | 7,764,842 | View |
| May 15, 2026 | SCHEDULE 13G/A | BVF INC/IL | 4.3% | 7,764,842 | View |
| May 15, 2026 | SCHEDULE 13G/A | LAMPERT MARK N | 4.3% | 7,764,842 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.