Form 4 Filing for Amplitude, Inc. by Spenser Skates

This SEC filing details transactions made by Spenser Skates, CEO and President of Amplitude, Inc. On September 30, 2026, 1374 shares of Class A Common Stock were acquired at $0.00 and subsequently disposed of at a weighted average price of $14.453. Concurrently, 1374 shares of Class B Common Stock were disposed of. On October 1, 2026, 3539 shares of Class A Common Stock were acquired at $0.00 and then disposed of at a weighted average price of $14.45. Additionally, 3539 shares of Class B Common Stock were disposed of. These transactions were executed under a 10b5-1 trading plan adopted by Mr. Skates' spouse. The Class B Common Stock is convertible into Class A Common Stock under specific conditions, including transfer, death, or cessation of employment/directorship.