Form 4 Tracker
Skates Spenser

Director, CEO and President, 10% Owner · 6 filings · Latest: Oct 2, 2026

Amplitude, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
AMPL
Skates SpenserDirector, CEO and President, 10% OwnerOct 2, 2026
Sale
$14.5270,087$1.0M0
AMPL
Skates SpenserDirector, CEO and President, 10% OwnerOct 1, 2026
Sale
$14.453,539$51.1K0
AMPL
Skates SpenserDirector, CEO and President, 10% OwnerSep 30, 2026
Sale
$14.451,374$19.9K0
AMPL
Skates Spenser—Oct 2, 2026
Proposed Sale
$14.5270,087$1.0M—
AMPL
Skates Spenser—Oct 1, 2026
Proposed Sale
$14.453,539$51.1K—
AMPL
Skates Spenser—Sep 30, 2026
Proposed Sale
$14.451,374$19.9K—
AMPL
Skates SpenserDirector, CEO and President, 10% OwnerSep 10, 2026
Sale
$12.30185,000$2.3M0
AMPL
Skates Spenser—Sep 10, 2026
Proposed Sale
$12.30185,000$2.3M—
AMPL
ANNE LEE SKATES—Dec 24, 2025
Proposed Sale
$11.6175,000$870.8K—
AMPL
ANNE LEE SKATES—Nov 11, 2025
Proposed Sale
$10.73400,000$4.3M—