Insider Transaction (Form 4)

CEO Abel Avellan acquired 184,375 shares of Class A Common Stock on March 24, 2026, through the vesting of performance-based stock units granted in December 2025, with the remaining shares vesting equally over the next two years contingent on continued employment. Following this transaction, Avellan beneficially owns approximately 78.6 million shares across Class A and Class C Common Stock, plus AST Common Units redeemable for additional Class A shares on a one-to-one basis. The acquisition represents standard executive compensation equity vesting tied to performance metrics certified by the compensation committee.