Esousa Group Holdings LLC Acquires 9.9% Stake in VivoSim Labs, Inc. (VIVS)

On April 6, 2026, Esousa Group Holdings LLC and its managing member, Michael Wachs, filed a Schedule 13G reporting a new 9.9% stake in VivoSim Labs, Inc. (VIVS). The reporting persons acquired 286,557 shares of common stock as of the event date on April 1, 2026. In addition to the reported common stock, the filers hold 2,345,022 Pre-Funded Warrants and 3,947,369 common warrants. However, these warrants are currently unexercisable due to a 9.9% Beneficial Ownership Limitation, which prevents the reporting persons from owning more than 9.9% of the issuer's outstanding common stock. This calculation is based on 2,607,962 shares of common stock outstanding as of December 31, 2025. The filing indicates a passive investment intent, as the securities were not acquired to influence the control of the issuer. Michael Wachs shares voting and dispositive power over the holdings via Esousa Group Holdings LLC.