$QSI

Quantum-Si Inc.'s Chief Product Officer, John S. Vieceli, was granted new equity awards, including options to purchase 468,508 shares of Class A common stock and 391,681 restricted stock units (RSUs). These awards, effective March 12, 2026, will vest in equal quarterly installments starting June 20, 2026, contingent on his continued service. Following these grants, Vieceli directly holds 1,192,654 shares of Class A common stock, with the awards classified as compensation-related and not open-market transactions.