Cogent Biosciences, Inc. (COGT) ownership: Entities affiliated with FMR LLC 16% · institutions 117% · index and ETF funds 7% (13F 2026-06-30). Insider activity, 90 days: Routine (2 sales, 0 open-market buys). 1 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| FMR (Fidelity) | 25681174.00 | $993.86M | 14.8% | 2026-06-30 |
| BlackRock | 17352646.00 | $671.55M | 10.0% | 2026-06-30 |
| Vanguard | 16941583.00 | $655.64M | 9.8% | 2026-06-30 |
| State Street | 6964919.00 | $269.54M | 4.0% | 2026-06-30 |
| Jupiter Topco LLC | 6624848.00 | $256.42M | 3.8% | 2026-06-30 |
| Janus Henderson | 5965125.00 | $229.63M | 3.4% | 2026-06-30 |
| Fairmount Funds Management LLC | 5503418.00 | $212.98M | 3.2% | 2026-06-30 |
| Deerfield Management Company, L.P. | 5006104.00 | $193.74M | 2.9% | 2026-06-30 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-08-27 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-06-09 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.