Spenser Skates sold $71K of AMPL stock

Spenser Skates, CEO and President, 10% of Amplitude, Inc. (AMPL), sold 4,913 shares of AMPL stock worth $71K, per an SEC Form 4 filed Oct 2, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Sep 30, 2026, 2 days before it was made public.

AMPL has moved +25.2% since the trade date, from $13.85 to $17.34 (Nov 13, 2026 close).