| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Love Douglas | PRESIDENT AND CEO, Director | C/O ANNEXON, INC., 1400 SIERRA POINT PKWY, BLDG C, STE 200, BRISBANE | /s/ Jennifer Lew, Attorney-in-Fact | 23 Feb 2026 | 0001818520 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ANNX | Stock Option (Right to Buy) | Award | $0 | +1,250,000 | $0.000000 | 1,250,000 | 19 Feb 2026 | Common Stock | 1,250,000 | $5.10 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | 1/48th of the shares subject to the option vest on each monthly anniversary measured from February 19, 2026 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, subject to Reporting Person's continuous service with the Issuer as of each such vesting date. |