Milhous Alison Tjosvold 4

What Happened
Alison Tjosvold, a director of VivoSim Labs, Inc. (VIVS), was granted 15,000 restricted stock units (RSUs) on January 27, 2026. The units were reported at a $0 acquisition price (i.e., no cash paid). This was an award/grant (not a purchase or sale) and represents a promise to issue common stock upon vesting rather than an immediate transfer of tradable shares.

Key Details

• Transaction date: 2026-01-27
• Transaction type: Award/Grant (code A) — 15,000 RSUs at $0.00 (total reported value $0)
• Filing date (Form 4): 2026-01-29; filing not reported as late
• Shares owned after transaction: Not specified in the provided filing
• Footnote F1: RSUs vest on the earlier of January 27, 2027 or the date of the next annual meeting of stockholders; vesting may accelerate upon a change of control
• Footnote F2: All share counts reflect a 1-for-12 reverse stock split effective March 20, 2025
• Remarks: Exhibit 24 — Power of Attorney included

Context
RSUs are compensation awards that convert into shares only after vesting; they do not represent immediately tradable stock and carry no immediate cash value while unvested. The vesting condition (earlier of a set date or next annual meeting) and change-of-control acceleration are standard for director awards. The reverse split note means reported share amounts already reflect prior share consolidation.