Curtis Liu Amplitude, Inc. (AMPL) insider trading activity

Curtis Liu is Chief Technology Officer of Amplitude, Inc.. Currently has a direct ownership of 827,345 shares of AMPL, which is worth approximately $10.5 Million. The most recent transaction as insider was on May 15, 2025, when has been sold 25,533 shares (Class A Common Stock) at a price of $12.14 per share, resulting in proceeds of $309,970. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 827K

Infinity% 3M change

Infinity% 12M change

Total Value Held $10.5 Million

Curtis Liu Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
May 15 2025	SELL Payment of exercise price or tax liability	$309,970 $12.14 p/Share	25,533 Reduced 2.99%	827,345 Class A Common Stock
Apr 25 2025	BUY Grant, award, or other acquisition	-	852,878 Added 50.0%	852,878 Class A Common Stock
Feb 01 2024	SELL Conversion of derivative security	-	23,866 Reduced 100.0%	0 Class A Common Stock
Feb 01 2024	BUY Exercise of conversion of derivative security	$99,998 $4.19 p/Share	23,866 Added 50.0%	23,866 Class A Common Stock
Feb 01 2023	SELL Conversion of derivative security	-	23,866 Reduced 100.0%	0 Class A Common Stock
Feb 01 2023	BUY Exercise of conversion of derivative security	$99,998 $4.19 p/Share	23,866 Added 50.0%	23,866 Class A Common Stock
Feb 17 2022	SELL Conversion of derivative security	-	23,866 Reduced 100.0%	0 Class A Common Stock
Feb 17 2022	BUY Exercise of conversion of derivative security	$99,999 $4.19 p/Share	23,866 Added 50.0%	23,866 Class A Common Stock

Curtis Liu

Chief Technology Officer

San Francisco, CA

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