ALUMIS INC. — Director's Dealing 2025

Aug 1, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALUMIS INC. (ALMS)
CIK: 0001847367
Period of Report: 2025-07-30

Reporting Person: Yao Zhengbin (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-07-30	Stock Option (Right to Buy)	$4.10	A	49800	Acquired	2035-07-29	Common Stock (49800)	Direct

Footnotes

F1: The shares underlying this option vest on the first anniversary of the date of grant, provided that the shares will in any case be fully vested on the date of the Issuer's 2026 annual stockholder meeting, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2024 Equity Incentive Plan (the "Plan")) through such vesting date and will vest in full upon a Change in Control (as defined in the Plan), subject to the Reporting Person's Continuous Service (as defined in the Plan) through such date.