Cogent Biosciences, Inc. has 24 Schedule 13D or 13G filings on record since 2025-07-11. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Fairmount Funds Management LLC | 8.6% | 15,356,918 | SCHEDULE 13D/A, 2026-03-31 | 2026-03-31 |
| BlackRock, Inc. | 8% | 13,593,063 | SCHEDULE 13G/A, 2026-07-27 | 2026-06-30 |
| Vanguard Capital Management | 5.08% | 8,691,589 | SCHEDULE 13G, 2026-07-31 | 2026-06-30 |
| TCG Crossover GP I, LLC | 4.8% | 6,798,162 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
| Kynam Capital Management, LP | 4.33% | 6,165,223 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Venrock Healthcare Capital Partners II, L.P. | 4.2% | 4,755,411 | SCHEDULE 13G/A, 2025-08-14 | 2025-06-30 |
| Point72 Asset Management, L.P. | 4% | 5,753,833 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
| Deerfield Mgmt, L.P. | 2.88% | 5,006,104 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| Paradigm BioCapital Advisors LP | 2.3% | 3,156,398 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
| Commodore Capital LP | 1.8% | 2,802,905 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-11 | Deerfield Mgmt, L.P. | 6.49% | SCHEDULE 13G |
| 2025-07-14 | Fairmount Funds Management LLC | 9.9% | SCHEDULE 13D/A |
| 2025-08-14 | Paradigm BioCapital Advisors LP | 9.1% | SCHEDULE 13G/A |
| 2025-08-14 | Venrock Healthcare Capital Partners II, L.P. | 4.2% | SCHEDULE 13G/A |
| 2025-08-14 | Commodore Capital LP | 4.6% | SCHEDULE 13G/A |
| 2025-08-14 | Commodore Capital LP | 5.5% | SCHEDULE 13G |
| 2025-11-14 | Point72 Asset Management, L.P. | 4% | SCHEDULE 13G/A |
| 2025-11-14 | Paradigm BioCapital Advisors LP | 2.3% | SCHEDULE 13G/A |
| 2025-11-14 | TCG Crossover GP I, LLC | 4.8% | SCHEDULE 13G/A |
| 2025-11-14 | Commodore Capital LP | 7.2% | SCHEDULE 13G/A |
| 2025-11-14 | Kynam Capital Management, LP | 5.54% | SCHEDULE 13G/A |
| 2025-11-17 | Fairmount Funds Management LLC | 9.9% | SCHEDULE 13D/A |
| 2026-01-21 | BlackRock, Inc. | 6.5% | SCHEDULE 13G/A |
| 2026-01-21 | BlackRock, Inc. | 6.5% | SCHEDULE 13G/A |
| 2026-01-22 | Fairmount Funds Management LLC | 9.9% | SCHEDULE 13D/A |
| 2026-01-30 | The Vanguard Group | 7.5% | SCHEDULE 13G/A |
| 2026-02-17 | Commodore Capital LP | 1.8% | SCHEDULE 13G/A |
| 2026-02-17 | Kynam Capital Management, LP | 4.33% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-03-31 | Fairmount Funds Management LLC | 8.6% | SCHEDULE 13D/A |
| 2026-05-14 | Deerfield Mgmt, L.P. | 5.29% | SCHEDULE 13G/A |
| 2026-07-27 | BlackRock, Inc. | 8% | SCHEDULE 13G/A |
| 2026-07-31 | Vanguard Capital Management | 5.08% | SCHEDULE 13G |
| 2026-08-13 | Deerfield Mgmt, L.P. | 2.88% | SCHEDULE 13G/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.