RHUMBLINE ADVISERS

Position in UCTT — Ultra Clean Holdings, Inc.

CIK 1115418 BOSTON, MA

Position in UCTT

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$15,749,350

+$7,808,778 QoQ

Shares Held

110,452

-13.5% QoQ

Ownership

0.244%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#61

of 438 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 54% Shared 0% None 46%

Technology · as of Jun 30, 2026

RHUMBLINE ADVISERS holds $3,288,249,694 across 28 Semiconductor Equipment & Materials names. UCTT ranks #13 (0.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AMAT	Applied Materials Inc /De	1,419,788	$1,026,506,724
2	LRCX	Lam Research Corp	2,271,281	$984,214,195
3	KLAC	Kla Corp	2,451,630	$739,681,287
4	TER	Teradyne, Inc	301,374	$145,816,796
5	ENTG	Entegris Inc	439,154	$78,986,238
6	Q	Qnity Electronics, Inc.	375,842	$61,378,757
7	ONTO	Onto Innovation Inc.	133,651	$50,580,220
8	AMKR	Amkor Technology, Inc.	315,669	$27,220,137

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$15,749,350	110,452	-13.5%	Shares	Sole	2026-08-12
2026-03-31	$7,940,572	127,703	+1.0%	Shares	Sole	2026-05-12
2025-12-31	$3,203,155	126,457	-5.7%	Shares	Sole	2026-02-13
2025-09-30	$3,655,260	134,138	-3.1%	Shares	Sole	2025-11-06
2025-06-30	$3,123,823	138,406	+9.8%	Shares	Sole	2025-08-12
2025-03-31	$2,699,758	126,098	-1.3%	Shares	Sole	2025-05-29
2024-12-31	$4,591,282	127,713	+0.9%	Shares	Sole	2025-05-29
2024-09-30	$5,054,419	126,582	-4.0%	Shares	Sole	2024-11-12
2024-06-30	$6,459,327	131,823	-7.1%	Shares	Sole	2024-08-01
2024-03-31	$6,520,677	141,939	+0.2%	Shares	Sole	2024-05-09
2023-12-31	$4,835,111	141,626	+2.3%	Shares	Sole	2024-02-08
2023-09-30	$4,109,562	138,509	-0.8%	Shares	Sole	2023-11-09
2023-06-30	$5,370,439	139,637	-1.0%	Shares	Sole	2023-08-08
2023-03-31	$4,675,029	140,984	+4.7%	Shares	Sole	2023-05-11
2022-12-31	$4,461,890	134,597	+4.4%	Shares	Sole	2023-02-14
2022-09-30	$3,320,359	128,946	+4.1%	Shares	Sole	2022-11-10
2022-06-30	$3,688,890	123,913	+13.3%	Shares	Sole	2022-08-11
2022-03-31	$4,636,999	109,389	+8.3%	Shares	Sole	2022-05-12
2021-12-31	$5,793,876	101,009	-0.7%	Shares	Sole	2022-02-10
2021-09-30	$4,332,249	101,696	-12.9%	Shares	Sole	2021-11-12
2021-06-30	$6,272,400	116,761	+3.2%	Shares	Sole	2021-08-05
2021-03-31	$6,565,600	113,122	+2.4%	Shares	Sole	2021-05-06
2020-12-31	$3,441,950	110,496	+2.2%	Shares	Sole	2021-02-10
2020-09-30	$2,320,362	108,125	-8.1%	Shares	Sole	2020-11-12
2020-06-30	$2,663,302	117,689	-17.5%	Shares	Sole	2020-08-13
2020-03-31	$1,969,743	142,735	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.