AMPLITUDE INC

Ticker: AMPL CUSIP: 03213A104 Class: Common Stock

SBI Securities Co., Ltd.'s Holding History (CIK: 0001851815)

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

Q4 2025

Shares 593 Value ($000) $7 Avg Close $10.52 Range $9.31 - $12.05

Q3 2025

Shares 386 Value ($000) $4 Avg Close $11.86 Range $10.59 - $14.49

Q2 2025

Shares 373 Value ($000) $5 Avg Close $10.82 Range $7.55 - $13.34

Q1 2025

Shares 387 Value ($000) $4 Avg Close $11.81 Range $10.05 - $14.88

Q4 2024

Shares 242 Value ($000) $3 Avg Close $10.01 Range $8.36 - $12.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	593	$7	$10.52	$9.31 - $12.05
Q3 2025	386	$4	$11.86	$10.59 - $14.49
Q2 2025	373	$5	$10.82	$7.55 - $13.34
Q1 2025	387	$4	$11.81	$10.05 - $14.88
Q4 2024	242	$3	$10.01	$8.36 - $12.12