Updated Jul 16, 2026 · Last SEC filing 2026-07-06
Cogent Biosciences, Inc. (COGT) has filed 8 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-06. 2 Form 8-K material event filings were reported by COGT in the last 90 days. InsiderAlpha tracks every COGT SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Pharmaceutical Preparations (SIC 2834) |
|---|---|
| SEC CIK | 0001622229 |
| Form 4 filings (90d) | 8 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Latest Form 4 filing | 2026-07-06 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Robbins Andrew R | President and CEO | G — Bona-fide gift | 160.0K | $0.00 | — | SEC | |
| Robbins Andrew R | President and CEO | G — Bona-fide gift | 160.0K | $0.00 | — | SEC | |
| Fairmount Funds Management LLC | Director | J — Other acquisition / disposition | 7.00M | — | — | SEC | |
| Fairmount Funds Management LLC | Director | S — Open-market sale | 7.00M | $34.66 | $242.62M | SEC | |
| Fairmount Funds Management LLC | Director | S — Open-market sale | 3.50M | $36.40 | $127.40M | SEC | |
| Green John L. | Chief Financial Officer | S — Open-market sale | 77.0K | $38.68 | $2.98M | SEC | |
| Sachs Jessica | Chief Medical Officer | S — Open-market sale | 82.6K | $38.70 | $3.20M | SEC | |
| Robinson John Edward | Chief Scientific Officer | S — Open-market sale | 90.0K | $38.74 | $3.49M | SEC | |
| Kearns Evan | Chief Legal Officer | S — Open-market sale | 65.0K | $38.70 | $2.52M | SEC | |
| Pinnow Cole | Chief Commercial Officer | F — Tax withholding / forfeiture | 94.8K | $39.45 | $3.74M | SEC | |
| Kearns Evan | Chief Legal Officer | A — Grant or award | 40.0K | $0.00 | — | SEC | |
| Kearns Evan | Chief Legal Officer | A — Grant or award | 260.0K | $0.00 | — | SEC | |
| Kearns Evan | Chief Legal Officer | F — Tax withholding / forfeiture | 125.6K | $39.45 | $4.95M | SEC | |
| Sachs Jessica | Chief Medical Officer | A — Grant or award | 50.0K | $0.00 | — | SEC | |
| Sachs Jessica | Chief Medical Officer | F — Tax withholding / forfeiture | 154.7K | $39.45 | $6.10M | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Cogent Biosciences, Inc. (COGT). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Robbins Andrew R | 2 | — |
| Ferrante Karen Jean | 2 | — |
| CAIN CHRISTOPHER W. | 1 | — |
| Ros Matthew | 1 | — |
| Harwin Peter Evan | 1 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in COGT insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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