List of insiders holdings for IGM 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 | Chen Daniel ShinYu Chief Medical Officer | 2021-07-06 19:45:18 | 454,858 0 | 454,858 | Form 4 |
| 2 | Schwarzer Fred CEO AND PRESIDENT | 2024-09-17 20:52:40 | 250,124 196,718 | 446,842 | Form 4 |
| 3 | Keyt Bruce CHIEF SCIENTIFIC OFFICER | 2024-09-17 20:50:57 | 242,948 4,039 | 246,987 | Form 4 |
| 4 | Tahir Misbah CHIEF FINANCIAL OFFICER | 2025-07-25 19:06:03 | 170,061 0 | 170,061 | Form 4 |
| 5 | Takimoto Chris H CHIEF MEDICAL OFFICER | 2024-09-17 20:55:55 | 154,331 0 | 154,331 | Form 4 |
| 6 | LOBERG MICHAEL D Director | 2023-10-03 19:51:34 | 1,138 81,790 | 82,928 | Form 4 |
| 7 | Decker Lisa Lynn CHIEF BUSINESS OFFICER | 2025-07-25 19:01:59 | 68,169 0 | 68,169 | Form 4 |
| 8 | Gauthier George Chief Commercial Officer | 2023-12-01 19:02:49 | 39,642 0 | 39,642 | Form 4 |
| 9 | Weber Steven PRINCIPAL ACCOUNTING OFFICER | 2025-06-20 20:24:15 | 26,530 0 | 26,530 | Form 4 |
| 10 | BAKER BROS. ADVISORS LP 667 L.P. Baker Brothers Life Sciences LP BAKER FELIX BAKER JULIAN Baker Bros. Advisors (GP) LLC Former 10% owner and director Director | 2025-08-18 17:52:19 | 0 0 | 0 | Form 13D |
| 11 | Neu Kelvin Director | 2019-09-17 17:33:59 | 0 0 | 0 | Form 3 |
| 12 | Redmile Group LLC Green Jeremy Director 10% Owner | 2025-08-15 17:01:03 | 0 0 | 0 | Form 13D |
| 13 | Hambleton Julie Director | 2025-08-14 20:52:50 | 0 0 | 0 | Form 4 |
| 14 | Lee Michael Stewart Director | 2025-08-14 19:35:42 | 0 0 | 0 | Form 4 |
| 15 | Topsoe Holding A/S 10% Owner | 2025-08-18 16:31:41 | 0 0 | 0 | Form 13D |
| 16 | Topsoe Jakob Haldor Director 10% Owner | 2025-08-14 17:27:24 | 0 0 | 0 | Form 4 |
| 17 | Topsoe Christina Teng Director 10% Owner | 2025-08-14 17:26:25 | 0 0 | 0 | Form 4 |
| 18 | Thompson Elizabeth H.Z. Director | 2025-08-14 17:25:30 | 0 0 | 0 | Form 4 |
| 19 | Strohl William Director | 2025-08-14 17:24:41 | 0 0 | 0 | Form 4 |
| 20 | Harler Mary Beth Chief Executive Officer | 2025-08-14 17:23:40 | 0 0 | 0 | Form 4 |
| 21 | BEHRENS M KATHLEEN Director | 2025-08-14 17:17:32 | 0 0 | 0 | Form 4 |