ULTRA CLEAN HLDGS INC

Ticker: UCTT CUSIP: 90385V107 Class: Common Stock

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

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

Q4 2025

Shares 70 Value ($000) $2 Avg Close $26.60 Range $21.49 - $31.11

Q3 2025

Shares 132 Value ($000) $4 Avg Close $24.59 Range $21.28 - $29.72

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	70	$2	$26.60	$21.49 - $31.11
Q3 2025	132	$4	$24.59	$21.28 - $29.72