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 | Topsoe Holding A/S 10% Owner | 2023-07-19 16:13:59 | 10,543,303 0 | 10,543,303 | Form 13D |
| 2 | Topsoe Jakob Haldor Director 10% Owner | 2025-07-02 18:55:28 | 91,712 10,400,564 | 10,492,276 | Form 4 |
| 3 | Topsoe Christina Teng Director 10% Owner | 2025-07-02 18:54:25 | 54,235 10,410,364 | 10,464,599 | Form 4 |
| 4 | BAKER BROS. ADVISORS LP 667 L.P. Baker Brothers Life Sciences LP BAKER FELIX BAKER JULIAN Baker Bros. Advisors (GP) LLC Director 10% Owner | 2025-07-02 17:26:33 | 0 3,763,362 | 3,763,362 | Form 4 |
| 5 | Redmile Group LLC Green Jeremy Director 10% Owner | 2025-07-02 16:01:29 | 0 2,964,843 | 2,964,843 | Form 4 |
| 6 | Chen Daniel ShinYu Chief Medical Officer | 2021-07-06 19:45:18 | 454,858 0 | 454,858 | Form 4 |
| 7 | Schwarzer Fred CEO AND PRESIDENT | 2024-09-17 20:52:40 | 250,124 196,718 | 446,842 | Form 4 |
| 8 | BEHRENS M KATHLEEN Director | 2025-07-02 18:51:03 | 22,222 390,313 | 412,535 | Form 4 |
| 9 | Harler Mary Beth Chief Executive Officer | 2025-06-20 20:20:38 | 338,181 0 | 338,181 | Form 4 |
| 10 | Keyt Bruce CHIEF SCIENTIFIC OFFICER | 2024-09-17 20:50:57 | 242,948 4,039 | 246,987 | Form 4 |
| 11 | Tahir Misbah CHIEF FINANCIAL OFFICER | 2025-06-20 20:23:02 | 178,802 0 | 178,802 | Form 4 |
| 12 | Takimoto Chris H CHIEF MEDICAL OFFICER | 2024-09-17 20:55:55 | 154,331 0 | 154,331 | Form 4 |
| 13 | Strohl William Director | 2024-08-12 20:30:55 | 125,000 0 | 125,000 | Form 4 |
| 14 | LOBERG MICHAEL D Director | 2023-10-03 19:51:34 | 1,138 81,790 | 82,928 | Form 4 |
| 15 | Decker Lisa Lynn CHIEF BUSINESS OFFICER | 2025-06-20 20:19:14 | 72,578 0 | 72,578 | Form 4 |
| 16 | Gauthier George Chief Commercial Officer | 2023-12-01 19:02:49 | 39,642 0 | 39,642 | Form 4 |
| 17 | Weber Steven PRINCIPAL ACCOUNTING OFFICER | 2025-06-20 20:24:15 | 26,530 0 | 26,530 | Form 4 |
| 18 | Lee Michael Stewart Director | 2025-07-02 16:02:07 | 12,712 0 | 12,712 | Form 4 |
| 19 | Thompson Elizabeth H.Z. Director | 2025-07-02 18:52:32 | 7,196 0 | 7,196 | Form 4 |
| 20 | Hambleton Julie Director | 2024-07-29 17:45:15 | 2,000 0 | 2,000 | Form 4 |
| 21 | Neu Kelvin Director | 2019-09-17 17:33:59 | 0 0 | 0 | Form 3 |