ULTRA CLEAN HLDGS INC

Ticker: UCTT CUSIP: 90385V107 Class: Common Stock

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025

Shares 8,914 Value ($000) $226 Avg Close $26.60 Range $21.49 - $31.11

Q3 2025

Shares 9,270 Value ($000) $253 Avg Close $24.59 Range $21.28 - $29.72

Q3 2023

Shares 80,820 Value ($000) $2,398 Avg Close $33.70 Range $28.04 - $40.80

Q2 2023

Shares 74,654 Value ($000) $2,871 Avg Close $32.18 Range $26.59 - $39.15

Q1 2023

Shares 74,569 Value ($000) $2,473 Avg Close $33.07 Range $29.01 - $38.84

Q4 2022

Shares 91,760 Value ($000) $3,042 Avg Close $31.89 Range $23.32 - $39.10

Q3 2022

Shares 92,489 Value ($000) $2,381 Avg Close $30.61 Range $25.19 - $36.23

Q2 2022

Shares 88,422 Value ($000) $2,632 Avg Close $32.45 Range $27.74 - $43.13

Q1 2022

Shares 41,001 Value ($000) $1,737 Avg Close $47.86 Range $37.72 - $60.49

Q4 2021

Shares 41,850 Value ($000) $2,400 Avg Close $52.01 Range $40.97 - $60.84

Q3 2021

Shares 45,664 Value ($000) $1,945 Avg Close $47.15 Range $39.00 - $56.24

Q2 2021

Shares 70,905 Value ($000) $3,806 Avg Close $53.53 Range $44.18 - $65.33

Q1 2021

Shares 60,833 Value ($000) $3,293 Avg Close $46.05 Range $31.59 - $59.42

Q4 2020

Shares 65,078 Value ($000) $2,024 Avg Close $27.90 Range $21.08 - $37.02

Q3 2020

Shares 92,842 Value ($000) $1,995 Avg Close $24.28 Range $19.08 - $31.10

Q2 2020

Shares 82,065 Value ($000) $1,858 Avg Close $19.01 Range $12.37 - $24.86

Q1 2020

Shares 74,610 Value ($000) $1,029 Avg Close $21.23 Range $11.79 - $30.00

Q4 2019

Shares 49,985 Value ($000) $1,173 Avg Close $20.22 Range $13.94 - $24.24

Q2 2019

Shares 35,396 Value ($000) $493 Avg Close $12.74 Range $10.50 - $14.82

Q1 2019

Shares 43,883 Value ($000) $454 Avg Close $10.73 Range $8.10 - $13.12

Q3 2018

Shares 119,195 Value ($000) $1,496 Avg Close $14.54 Range $12.28 - $17.35

Q2 2018

Shares 4 Value ($000) $0 Avg Close $17.54 Range $15.36 - $19.59

Q1 2018

Shares 34 Value ($000) $1 Avg Close $21.09 Range $16.29 - $27.20

Q4 2017

Shares 146 Value ($000) $3 Avg Close $25.63 Range $18.86 - $34.59

Q3 2017

Shares 11,570 Value ($000) $354 Avg Close $23.64 Range $18.41 - $30.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,914	$226	$26.60	$21.49 - $31.11
Q3 2025	9,270	$253	$24.59	$21.28 - $29.72
Q3 2023	80,820	$2,398	$33.70	$28.04 - $40.80
Q2 2023	74,654	$2,871	$32.18	$26.59 - $39.15
Q1 2023	74,569	$2,473	$33.07	$29.01 - $38.84
Q4 2022	91,760	$3,042	$31.89	$23.32 - $39.10
Q3 2022	92,489	$2,381	$30.61	$25.19 - $36.23
Q2 2022	88,422	$2,632	$32.45	$27.74 - $43.13
Q1 2022	41,001	$1,737	$47.86	$37.72 - $60.49
Q4 2021	41,850	$2,400	$52.01	$40.97 - $60.84
Q3 2021	45,664	$1,945	$47.15	$39.00 - $56.24
Q2 2021	70,905	$3,806	$53.53	$44.18 - $65.33
Q1 2021	60,833	$3,293	$46.05	$31.59 - $59.42
Q4 2020	65,078	$2,024	$27.90	$21.08 - $37.02
Q3 2020	92,842	$1,995	$24.28	$19.08 - $31.10
Q2 2020	82,065	$1,858	$19.01	$12.37 - $24.86
Q1 2020	74,610	$1,029	$21.23	$11.79 - $30.00
Q4 2019	49,985	$1,173	$20.22	$13.94 - $24.24
Q2 2019	35,396	$493	$12.74	$10.50 - $14.82
Q1 2019	43,883	$454	$10.73	$8.10 - $13.12
Q3 2018	119,195	$1,496	$14.54	$12.28 - $17.35
Q2 2018	4	$0	$17.54	$15.36 - $19.59
Q1 2018	34	$1	$21.09	$16.29 - $27.20
Q4 2017	146	$3	$25.63	$18.86 - $34.59
Q3 2017	11,570	$354	$23.64	$18.41 - $30.92