Form 4 Filing for Amplitude, Inc.

Tzuo Tien, a director at Amplitude, Inc., acquired 818 shares of Class A Common Stock on October 5, 2026, with a transaction price of $0.00 per share. This acquisition was part of the Issuer's Non-Employee Director Compensation Program, where restricted stock units (RSUs) were granted in lieu of retainer fees. Each RSU represents a right to receive one share of Class A Common Stock, with the issuance deferred. Following this transaction, Tien Tzuo now owns 102,419 shares. The filing also notes that the transaction code was 'A' for acquisition, and the ownership nature is direct.