Form 4 Tracker
Liu Curtis

Director, Chief Technology Officer, 10% Owner · 8 filings · Latest: Jun 1, 2026

Amplitude, Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
AMPL
Liu CurtisDirector, Chief Technology Officer, 10% OwnerJun 1, 2026
Sale
$8.0322,786$182.9K1,004,194
AMPL
Liu CurtisJun 1, 2026
Proposed Sale
$7.8222,786$178.2K
AMPL
Liu CurtisDirector, Chief Technology Officer, 10% OwnerJun 1, 2026
Sale
$8.0322,201$178.2K1,004,779
AMPL
CURTIS LIUJun 1, 2026
Proposed Sale
$7.8222,201$173.6K
AMPL
Liu CurtisDirector, Chief Technology Officer, 10% OwnerMay 4, 2026
Sale
$8.1217,586$142.9K1,067,259
AMPL
Liu CurtisDirector, Chief Technology Officer, 10% OwnerMar 6, 2026
Sale
$8.0133,201$265.8K603,756
AMPL
Liu CurtisDirector, Chief Technology Officer, 10% OwnerMar 5, 2026
Sale
$8.0030,061$240.5K636,957
AMPL
CURTIS LIUMar 5, 2026
Proposed Sale
$7.7280,848$624.1K