Pacific Ridge Capital Partners, LLC

Position in UCTT — Ultra Clean Holdings, Inc.

CIK 1591546 LAKE OSWEGO, OR

Position in UCTT

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$570,314

-$345,112 QoQ

Shares Held

9,172

-74.6% QoQ

Ownership

0.020%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 80% Shared 0% None 20%

Technology · as of Mar 31, 2026

Pacific Ridge Capital Partners, LLC holds $15,656,453 across 5 Semiconductor Equipment & Materials names. UCTT ranks #5 (3.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	INTT	Intest Corp	502,299	$6,856,381
2	ASYS	Amtech Systems Inc	405,371	$4,734,733
3	PLAB	Photronics Inc	51,641	$2,086,812
4	COHU	Cohu Inc	45,990	$1,408,213
5	UCTT	Ultra Clean Holdings, Inc. This page	9,172	$570,314

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$570,314	9,172	-74.6%	Shares	Sole	2026-05-11
2025-12-31	$915,426	36,140	+4.6%	Shares	Sole	2026-02-04
2025-09-30	$941,215	34,540	0.0%	Shares	Sole	2025-11-12
2025-06-30	$779,567	34,540	+73.7%	Shares	Sole	2025-08-11
2025-03-31	$425,630	19,880	-0.8%	Shares	Sole	2025-05-09
2024-12-31	$720,653	20,046	0.0%	Shares	Sole	2025-02-12
2024-09-30	$800,436	20,046	-39.8%	Shares	Sole	2024-11-13
2024-06-30	$1,630,622	33,278	-7.7%	Shares	Sole	2024-08-15
2024-03-31	$1,657,055	36,070	-20.7%	Shares	Sole	2024-05-09
2023-12-31	$1,552,755	45,482	+13.7%	Shares	Sole	2024-02-12
2023-09-30	$1,186,592	39,993	-0.4%	Shares	Sole	2023-11-13
2023-06-30	$1,544,668	40,163	+0.2%	Shares	Sole	2023-08-10
2023-03-31	$1,329,384	40,090	-0.7%	Shares	Sole	2023-05-12
2022-12-31	$1,338,265	40,370	-0.0%	Shares	Sole	2023-02-13
2022-09-30	$1,039,785	40,380	0.0%	Shares	Sole	2022-11-10
2022-06-30	$1,202,112	40,380	+0.2%	Shares	Sole	2022-08-10
2022-03-31	$1,707,469	40,280	+42.9%	Shares	Sole	2022-05-11
2021-12-31	$1,616,404	28,180	0.0%	Shares	Sole	2022-02-10
2021-09-30	$1,200,468	28,180	+22.4%	Shares	Sole	2021-11-12
2021-06-30	$1,236,634	23,020	-12.8%	Shares	Sole	2021-08-13
2021-03-31	$1,531,675	26,390	-83.7%	Shares	Sole	2021-05-11
2020-12-31	$5,049,913	162,116	-57.8%	Shares	Sole	2021-02-10
2020-09-30	$8,247,507	384,320	-23.0%	Shares	Sole	2020-11-10
2020-06-30	$11,298,910	499,289	+6.5%	Shares	Sole	2020-08-11
2020-03-31	$6,469,288	468,789	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.