MARTINGALE ASSET MANAGEMENT L P

Position in UCTT — Ultra Clean Holdings, Inc.

CIK 936944 BOSTON, MA

Position in UCTT

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$1,672,438

-$262,727 QoQ

Shares Held

11,729

-62.3% QoQ

Ownership

0.026%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

#171

of 435 holders

Holding Since

Mar 2020

10 quarters on record

Voting authority Sole 13% Shared 0% None 87%

Technology · as of Jun 30, 2026

MARTINGALE ASSET MANAGEMENT L P holds $46,364,524 across 8 Semiconductor Equipment & Materials names. UCTT ranks #5 (3.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AMAT	Applied Materials Inc /De	28,918	$20,907,714
2	LRCX	Lam Research Corp	41,095	$17,807,696
3	PLAB	Photronics Inc	55,930	$1,819,402
4	KLIC	Kulicke & Soffa Industries Inc	13,387	$1,790,645
5	UCTT	Ultra Clean Holdings, Inc. This page	11,729	$1,672,438
6	ACLS	Axcelis Technologies Inc	5,813	$1,101,272
7	ICHR	Ichor Holdings, Ltd.	6,672	$749,132
8	KLAC	Kla Corp	1,711	$516,225

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,672,438	11,729	-62.3%	Shares	Sole	2026-08-13
2026-03-31	$1,935,165	31,122	-33.2%	Shares	Sole	2026-05-13
2025-12-31	$1,179,238	46,555	+391.2%	Shares	Sole	2026-02-13
2024-06-30	$464,373	9,477	+74.2%	Shares	Sole	2024-08-12
2024-03-31	$249,867	5,439	-60.2%	Shares	Sole	2024-05-14
2023-12-31	$466,113	13,653	-46.8%	Shares	Sole	2024-02-12
2023-09-30	$761,361	25,661	+25.8%	Shares	Sole	2023-11-14
2023-06-30	$784,276	20,392	-12.2%	Shares	Sole	2023-08-11
2020-06-30	$525,717	23,231	-66.5%	Shares	Sole	2020-08-10
2020-03-31	$955,594	69,246	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.