List of insiders holdings for Prime Medicine 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 | Liu David R. 10% Owner | 2025-07-01 16:03:52 | 20,240,945 0 | 20,240,945 | Form 4 |
| 2 | ARCH Venture Partners XII LLC ARCH Venture Partners XII L.P. ARCH Venture Fund XII L.P. 10% Owner | 2025-08-11 21:48:39 | 18,587,036 0 | 18,587,036 | Form 13D |
| 3 | ARCH Venture Partners X LLC ARCH Venture Partners X L.P. ARCH Venture Partners X Overage L.P. ARCH Venture Fund X L.P. ARCH Venture Fund X Overage L.P. CRANDELL KEITH Burow Kristina GILLIS STEVEN 10% Owner | 2025-08-01 19:18:42 | 0 18,486,894 | 18,486,894 | Form 4 |
| 4 | GV 2019 GP L.L.C. GV 2019 GP L.P. GV 2019 L.P. GV 2021 GP L.L.C. GV 2021 GP L.P. GV 2021 L.P. Alphabet Inc. 10% Owner | 2024-02-29 16:15:19 | 15,062,498 0 | 15,062,498 | Form 13G |
| 5 | FMR LLC See Remark 1 | 2024-11-12 10:34:15 | 7,726,649 0 | 7,726,649 | Form 13G |
| 6 | GV 2021 GP L.L.C. GV 2021 GP L.P. GV 2021 L.P. Alphabet Inc. 10% Owner | 2025-08-05 16:07:52 | 0 3,262,440 | 3,262,440 | Form 4 |
| 7 | GV 2023 GP L.L.C. GV 2023 GP L.P. GV 2023 L.P. Alphabet Inc. Member of 10% Group | 2024-02-29 16:21:24 | 0 3,200,000 | 3,200,000 | Form 3 |
| 8 | Reine Allan Chief Executive Officer | 2025-08-05 20:42:40 | 850,000 0 | 850,000 | Form 4 |
| 9 | Marrazzo Jeffrey D Director | 2025-08-05 20:43:19 | 387,000 0 | 387,000 | Form 4 |
| 10 | LEE ANN L. Chief Technical Officer | 2025-08-05 20:44:42 | 361,990 0 | 361,990 | Form 4 |
| 11 | Gottesdiener Keith Michael See Remarks | 2025-05-12 16:50:03 | 300,000 0 | 300,000 | Form 4 |
| 12 | Duffield Jeremy Chief Scientific Officer | 2025-03-03 20:15:39 | 275,000 0 | 275,000 | Form 4 |
| 13 | Alenson Carman See Remarks | 2025-08-05 20:42:30 | 203,333 0 | 203,333 | Form 4 |
| 14 | Chung Wendy Director | 2025-08-05 20:43:00 | 106,578 0 | 106,578 | Form 4 |
| 15 | Foster-Cheek Kaye I Director | 2025-08-05 20:43:06 | 106,578 0 | 106,578 | Form 4 |
| 16 | Kelly Michael Aaron Director | 2025-08-05 20:43:12 | 106,578 0 | 106,578 | Form 4 |
| 17 | Goldwasser Meredith SVP, Strategy & Corporate Ops. | 2025-03-03 20:16:55 | 90,500 0 | 90,500 | Form 4 |
| 18 | Cahill Thomas Director | 2025-08-05 20:42:47 | 84,062 0 | 84,062 | Form 4 |
| 19 | NELSEN ROBERT Director 10% Owner | 2025-08-05 20:43:27 | 84,062 0 | 84,062 | Form 4 |
| 20 | Schenkein David P Director | 2025-08-05 20:43:37 | 84,062 0 | 84,062 | Form 4 |
| 21 | Brudnick Richard Chief Business Officer | 2025-05-22 16:22:45 | 20,000 0 | 20,000 | Form 4 |