ULTRA CLEAN HLDGS INC

Ticker: UCTT CUSIP: 90385V107 Class: Common Stock

Cornerstone Planning Group LLC's Holding History (CIK: 0001822587)

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

Q4 2025

Shares 21 Value ($000) $1 Avg Close $26.60 Range $21.49 - $31.11

Q3 2025

Shares 79 Value ($000) $12 Avg Close $24.59 Range $21.28 - $29.72

Q2 2025

Shares 21 Value ($000) $0 Avg Close $20.53 Range $16.66 - $23.22

Q1 2025

Shares 21 Value ($000) $0 Avg Close $31.93 Range $20.86 - $40.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	21	$1	$26.60	$21.49 - $31.11
Q3 2025	79	$12	$24.59	$21.28 - $29.72
Q2 2025	21	$0	$20.53	$16.66 - $23.22
Q1 2025	21	$0	$31.93	$20.86 - $40.10