| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Manji Husseini | Director | C/O ALTO NEUROSCIENCE, INC., 650 CASTRO STREET, SUITE 450, MOUNTAIN VIEW | /s/ Erin R. McQuade, Attorney-in-Fact | 2025-05-15 | 0002009654 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ANRO | Stock Option (right to buy) | Award | $0 | +15.3K | $0.00 | 15.3K | May 13, 2025 | Common Stock | 15.3K | $2.37 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | The shares underlying the option shall vest on the earlier of the one-year anniversary of the date of grant and the date of Issuer's next Annual Meeting following the date of grant, subject to the Reporting Person's continuous service through such vesting date. |
| F2 | The derivative securities were granted to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy, and were not sold to the reporting person. As such, the reporting person did not pay any consideration for the derivative securities. |