Liu Curtis 4

What Happened

Curtis Liu, a reported 10% owner of Amplitude, had 26,672 shares of Class A common stock withheld by the issuer to satisfy tax withholding on RSUs that vested on February 15, 2026. The withholding was recorded at $6.34 per share for a total value of $169,100. The Form 4 transaction is coded "F" (tax withholding) and the filing notes this withholding does not represent a sale by the reporting person.

Key Details

• Transaction date: February 15, 2026 (Form 4 filed February 17, 2026 — appears timely within the two-business-day window).
• Shares withheld: 26,672 at $6.34 per share; total $169,100.
• Transaction code: F (shares withheld to satisfy tax withholding obligations).
• Footnote F1: Withheld shares were retained by the issuer solely to satisfy tax withholding related to RSU vesting and do not represent a sale by the reporting person.
• Footnote F2: Filing notes inclusion of 568,585 RSUs (related to the reporting person's holdings).
• Shares owned after transaction: not specified in the provided filing details.

Context

This was a cashless tax-withholding event tied to RSU vesting — a routine administrative action that reduces the net shares issued to the insider rather than an open-market sale. As a 10% owner, Liu's transaction reflects ownership-management tax mechanics rather than a directional trade signal.