TETRAULT LYNN A. 4

What Happened Lynn A. Tetrault, a director of Alumis, was awarded equity on June 30, 2026: 3,553 restricted stock units (RSUs) and a derivative award covering 15,528 shares (total 19,081 shares). Both awards were granted at $0.00 (no cash paid) and are reported as acquisitions on Form 4.

Key Details

• Transaction date: 2026-06-30; Form 4 filed 2026-07-02.
• Grants: 3,553 RSUs (reported as shares) and 15,528 derivative shares (option-style award); combined 19,081 shares; grant price $0.00.
• Vesting: Both awards vest on the first anniversary of the grant and will be fully vested by the Issuer’s 2027 annual meeting, subject to the Reporting Person’s continuous service; they also vest in full upon a Change in Control (see footnotes F1 & F2).
• Shares owned after transaction: not disclosed in the provided filing.
• Filing timeliness: Form filed July 2, 2026 (listed filing date — no late-filing indicator provided).

Context

• The 3,553 RSUs represent shares issuable upon settlement once vested; no immediate sale of shares is indicated.
• The 15,528-derivative award is an option-style grant whose underlying shares vest under the same schedule.
• These awards are compensation-related grants to a director and do not by themselves indicate buying or selling sentiment in the open market.