QUINSTREET INC

Ticker: QNST CUSIP: 74874Q100 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q3 2025

Shares 54 Value ($000) $1 Avg Close $15.88 Range $14.27 - $17.13

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	54	$1	$15.88	$14.27 - $17.13