AMPLITUDE INC

Ticker: AMPL CUSIP: 03213A104 Class: Common Stock

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

Note: Option positions (PUT/CALL) are excluded.

Q2 2025

Shares 418,090 Value ($000) $5,184 Avg Close $10.82 Range $7.55 - $13.34

Q1 2025

Shares 26,897 Value ($000) $274 Avg Close $11.81 Range $10.05 - $14.88

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	418,090	$5,184	$10.82	$7.55 - $13.34
Q1 2025	26,897	$274	$11.81	$10.05 - $14.88