Compass Therapeutics, Inc. - CMPX
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Feb 13, 2026 | SCHEDULE 13G/A | Blackstone Annex Master Fund L.P. | 1.4% | 2,447,820 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Spruce Street Aggregator L.P. | 2.1% | 3,678,362 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Blackstone Alternative Asset Management Associates LLC | 3.4% | 6,126,182 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Blackstone Holdings II L.P. | 3.4% | 6,126,182 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Blackstone Holdings I/II GP L.L.C. | 3.4% | 6,126,182 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Blackstone Inc. | 3.4% | 6,126,182 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Blackstone Group Management L.L.C. | 3.4% | 6,126,182 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Stephen A. Schwarzman | 3.4% | 6,126,182 | View |
| Jan 21, 2026 | SCHEDULE 13G | BlackRock, Inc. | 5.2% | 9,271,644 | View |
| Nov 14, 2025 | SCHEDULE 13G | Vivo Opportunity Fund Holdings, L.P. | 5.1% | 8,995,979 | View |
| Nov 14, 2025 | SCHEDULE 13G | Vivo Opportunity, LLC | 5.1% | 8,995,979 | View |
| Nov 14, 2025 | SCHEDULE 13G | Vivo Opportunity Cayman Fund, L.P. | 0.3% | 549,487 | View |
| Nov 14, 2025 | SCHEDULE 13G | Vivo Opportunity Cayman, LLC | 0.3% | 549,487 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL MANAGEMENT, LLC | 9.99% | 17,176,510 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | KEVIN TANG | 9.99% | 17,176,510 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS, LP | 5.98% | 10,274,944 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS INTERNATIONAL, LP | 3.24% | 5,568,566 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS III, INC | 0.58% | 999,750 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS IV, INC | 0.19% | 333,250 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL MANAGEMENT, LLC | 9.99% | 17,176,510 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | KEVIN TANG | 9.99% | 17,176,510 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS, LP | 5.98% | 10,274,944 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS INTERNATIONAL, LP | 3.24% | 5,568,566 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS III, INC | 0.58% | 999,750 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | TANG CAPITAL PARTNERS IV, INC | 0.19% | 333,250 | View |
| Oct 29, 2025 | SCHEDULE 13G | BIOTECHNOLOGY VALUE FUND L P | 2.7% | 4,673,550 | View |
| Oct 29, 2025 | SCHEDULE 13G | BVF I GP LLC | 2.7% | 4,673,550 | View |
| Oct 29, 2025 | SCHEDULE 13G | BIOTECHNOLOGY VALUE FUND II LP | 2.0% | 3,396,894 | View |
| Oct 29, 2025 | SCHEDULE 13G | BVF II GP LLC | 2.0% | 3,396,894 | View |
| Oct 29, 2025 | SCHEDULE 13G | Biotechnology Value Trading Fund OS LP | 0.3% | 542,486 | View |
| Oct 29, 2025 | SCHEDULE 13G | BVF Partners OS Ltd. | 0.3% | 542,486 | View |
| Oct 29, 2025 | SCHEDULE 13G | BVF GP HOLDINGS LLC | 4.7% | 8,070,444 | View |
| Oct 29, 2025 | SCHEDULE 13G | BVF PARTNERS L P/IL | 5.1% | 8,750,000 | View |
| Oct 29, 2025 | SCHEDULE 13G | BVF INC/IL | 5.1% | 8,750,000 | View |
| Oct 29, 2025 | SCHEDULE 13G | LAMPERT MARK N | 5.1% | 8,750,000 | 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.