API Group Director Cyrus D. Walker RSU Settlement and New Grant

This Form 4 filing reports equity transactions by API Group Corp director Cyrus D. Walker. On May 16, 2026, 4,740 restricted stock units (RSUs) were settled for an equal number of shares of common stock, resulting in Walker acquiring 4,740 shares at $0 per share. Following this transaction, his total common stock holdings increased to 58,470 shares (adjusted for a 3-for-2 stock dividend from June 30, 2025). Additionally, on May 15, 2026, Walker was granted 4,047 new RSUs that vest on May 15, 2027, contingent on continued service. The filing also shows the settlement of 4,740 RSUs that had vested on May 16, 2026. All transactions represent direct ownership and were reported on May 19, 2026.