List of insiders holdings for Cogent Biosciences Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | FMR LLC See Remark 1 | 2025-02-12 09:28:12 | 16,569,256 0 | 16,569,256 | Form 13G |
| 2 | Fairmount Funds Management LLC Director | 2025-11-17 16:36:40 | 15,877,418 0 | 15,877,418 | Form 13D |
| 3 | Venrock Healthcare Capital Partners III L.P. Venrock Healthcare Capital Partners II L.P. VHCP Co-Investment Holdings II LLC VHCP Co-Investment Holdings III LLC VHCP Management II LLC VHCP Management III LLC Koh Bong Y Shah Nimish P 10% Owner | 2025-08-14 18:04:04 | 4,755,411 0 | 4,755,411 | Form 13G |
| 4 | CAMPANA DARIO 10% Owner | 2020-10-08 17:43:40 | 0 3,095,114 | 3,095,114 | Form 4 |
| 5 | FIL Ltd See Remark 1 | 2018-04-05 12:28:39 | 1,138,274 0 | 1,138,274 | Form 4 |
| 6 | Atlas Venture Fund IX L.P. Atlas Venture Associates IX L.P. Atlas Venture Associates IX LLC 10% Owner | 2022-01-25 11:32:52 | 916,196 0 | 916,196 | Form 13G |
| 7 | Robbins Andrew R President and CEO | 2025-12-19 16:01:10 | 902,503 0 | 902,503 | Form 4 |
| 8 | Stamoulis Christiana President & C.F.O. | 2018-03-28 20:56:08 | 727,498 0 | 727,498 | Form 3 |
| 9 | Robinson John Edward Chief Scientific Officer | 2025-12-19 16:01:12 | 295,002 0 | 295,002 | Form 4 |
| 10 | Pinnow Cole Chief Commercial Officer | 2025-12-19 16:01:08 | 281,650 0 | 281,650 | Form 4 |
| 11 | Sachs Jessica Chief Medical Officer | 2025-12-19 16:01:04 | 281,580 0 | 281,580 | Form 4 |
| 12 | Green John L. Chief Financial Officer | 2025-12-19 16:01:03 | 273,834 0 | 273,834 | Form 4 |
| 13 | Kearns Evan Chief Legal Officer | 2025-12-19 16:01:06 | 229,398 0 | 229,398 | Form 4 |
| 14 | WILSON CHARLES Chief Executive Officer | 2019-04-11 16:41:17 | 174,400 0 | 174,400 | Form 4 |
| 15 | Osborne Matthew Scott Chief Financial Officer | 2020-02-13 16:55:34 | 160,400 0 | 160,400 | Form 4 |
| 16 | Ettenberg Seth Chief Scientific Officer | 2020-02-13 16:53:05 | 153,600 0 | 153,600 | Form 4 |
| 17 | HODGE GEOFFREY Chief Technical Officer | 2020-02-13 16:54:36 | 112,400 0 | 112,400 | Form 4 |
| 18 | VASCONCELLES MICHAEL Chief Medical Officer | 2019-04-11 16:39:28 | 61,900 0 | 61,900 | Form 4 |
| 19 | Booth Bruce Director | 2020-07-06 16:52:47 | 61,338 0 | 61,338 | Form 4 |
| 20 | Shegog Todd Director | 2025-06-05 16:21:25 | 44,700 0 | 44,700 | Form 4 |
| 21 | CAIN CHRISTOPHER W. Director | 2025-06-05 16:24:15 | 44,700 0 | 44,700 | Form 4 |
| 22 | Ros Matthew Director | 2025-06-05 16:21:56 | 44,700 0 | 44,700 | Form 4 |
| 23 | Harwin Peter Evan Director | 2025-06-05 16:19:21 | 44,700 0 | 44,700 | Form 4 |
| 24 | Morris Arlene Director | 2025-06-05 16:17:57 | 44,700 0 | 44,700 | Form 4 |
| 25 | Aldag Jorn Director | 2020-07-06 16:15:14 | 40,090 0 | 40,090 | Form 4 |
| 26 | Ratcliffe Liam Director | 2019-06-18 16:27:45 | 7,881 0 | 7,881 | Form 4 |
| 27 | PEREZ ROBERT J Director | 2019-06-18 16:25:37 | 7,131 0 | 7,131 | Form 4 |
| 28 | Ferrante Karen Jean Director | 2025-10-03 16:16:22 | 1,642 0 | 1,642 | Form 4 |