RHUMBLINE ADVISERS

CIK

1115418

City

BOSTON

State / Country

Stock

UCTT — Ultra Clean Holdings, Inc.

Top Portfolio Positions

3,469 positions · $113,790,378,372 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	42,003,171	$7,325,353,022	6.44%
AAPL	Apple Inc. Technology	25,818,857	$6,552,567,718	5.76%
MSFT	Microsoft Corp Technology	12,999,925	$4,812,182,237	4.23%
AMZN	Amazon Com Inc Consumer Cyclical	16,587,340	$3,454,645,301	3.04%
GOOGL	Alphabet Inc. Communication Services	10,138,654	$2,915,471,344	2.56%
AVGO	Broadcom Inc. Technology	8,207,022	$2,540,155,379	2.23%
META	Meta Platforms, Inc. Communication Services	3,836,760	$2,195,125,498	1.93%
TSLA	Tesla, Inc. Consumer Cyclical	4,844,884	$1,801,085,627	1.58%
BRK-B	Berkshire Hathaway Inc Financial Services	2,848,515	$1,365,008,388	1.20%
JPM	Jpmorgan Chase & Co Financial Services	4,613,123	$1,356,996,261	1.19%

25 quarters · across all stocks

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
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 13F history on record for this holder in this stock.