| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Thompson Elizabeth H.Z. | Director | C/O IGM BIOSCIENCES, INC., 325 E. MIDDLEFIELD ROAD, MOUNTAIN VIEW | /s/ Misbah Tahir, by power of attorney | 02 Jul 2025 | 0001861477 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IGMS | Common Stock | Award | $0 | +694 | +11% | $0.000000 | 7,196 | 30 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | These securities are fully vested restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The amount reflects partial payment of a quarterly retainer in common stock pursuant to the Issuer's Outside Director Compensation Policy. |