COGT: Cogent Biosciences, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-13 | Fell below 5% | Deerfield Mgmt, L.P. | 2.88% | SEC | |
| 2026-07-31 | New 13G stake | Vanguard Capital Management | 5.08% | SEC | |
| 2026-07-27 | 13G amendment | BlackRock, Inc. | 8.00% | SEC |
Institutional ownership (Q2 2026)
323 institutions reported holding $7.22B of Cogent Biosciences, Inc. on Form 13F (306 the quarter before). 61 opened a new position and 45 sold out. Shares held by institutions: +5%.
| Largest holders | Shares | Value |
|---|---|---|
| FMR LLC | 25,681,174 | $993.86M |
| BlackRock, Inc. | 17,352,646 | $671.55M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 8,072,411 | $312.40M |
| VANGUARD CAPITAL MANAGEMENT LLC | 7,412,330 | $286.86M |
| STATE STREET CORP | 6,964,919 | $269.54M |
| Jupiter Topco LLC | 6,624,848 | $256.42M |
| Fairmount Funds Management LLC | 5,503,418 | $212.98M |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 5,006,104 | $193.74M |
| TCG Crossover Management, LLC | 4,854,436 | $187.87M |
| GEODE CAPITAL MANAGEMENT, LLC | 4,508,998 | $174.53M |
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