AMPLITUDE INC

Ticker: AMPL CUSIP: 03213A104 Class: Common Stock

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q2 2025

Shares 210,000 Value ($000) $2,604 Avg Close $10.82 Range $7.55 - $13.34

Q1 2025

Shares 135,000 Value ($000) $1,376 Avg Close $11.81 Range $10.05 - $14.88

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	210,000	$2,604	$10.82	$7.55 - $13.34
Q1 2025	135,000	$1,376	$11.81	$10.05 - $14.88