Ultra Clean Holdings UCTT Institutional Ownership

NASDAQ UCTT

$45.32 +0.86 (+1.93%)

At close: Oct 23, 2026 · 4:00 PM EDT

Institutions by Trading Activity

433 Institutions

Increased 238 55.0%

Unchanged 34 7.9%

Reduced 161 37.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

46.07Mn

of 45.30Mn outstanding

▲+2.50% QoQ

Shares Outstanding

45.30Mn

Institutional Investors

433

filed 13F for Jun 2026

▲+104 vs prior quarter

Net Shares Added (QoQ)

+1.13Mn

accumulated since last quarter

Value of Holdings

$2.09Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Ultra Clean Holdings, Inc. (NASDAQ:UCTT) had 433 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

Total shares held in Ultra Clean Holdings rose 2.50% versus Q1 2026, while the number of holders rose 89.91% versus Q2 2025.
Of the 433 holders, 238 added to their positions, 161 reduced their stakes and 34 left their positions unchanged in Q2 2026.
In total, institutional investors held 46.07Mn shares of Ultra Clean Holdings at the end of Q2 2026, up 1.13Mn from the prior quarter and up 4.84Mn from a year earlier.
BlackRock, Inc. was the top holder of Ultra Clean Holdings as of June 30, 2026, with 6.92Mn shares.
The largest position increases in UCTT for Q2 2026 were by Invesco Ltd. (+1.46Mn shares), AllianceBernstein L.P. (+736.75K shares), Franklin Templeton Inc (+339.73K shares), Driehaus Capital Management LLC (+246.83K shares) and Nomura Asset Management International Inc. (+211.33K shares).
Holders that trimmed the most shares of Ultra Clean Holdings in Q2 2026 while keeping a position were Frontier Capital Management Co LLC (-1.12Mn shares), SG Americas Securities, LLC (-563.82K shares), D. E. Shaw & Co., Inc. (-563.46K shares), Morgan Stanley (-362.46K shares) and Jane Street Group, LLC (-307.73K shares).
Ultra Clean Holdings' 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (6.92Mn shares), Invesco Ltd. (3.12Mn shares), Vanguard Portfolio Management LLC (2.76Mn shares), Capital World Investors (2.58Mn shares), Vanguard Capital Management LLC (1.91Mn shares), State Street Corp (1.8Mn shares), Boston Partners (1.36Mn shares), Geode Capital Management, LLC (1.32Mn shares), Driehaus Capital Management LLC (1.31Mn shares) and Dimensional Fund Advisors LP (949.35K shares), per Business Quant data.

Form 13F Holdings

433 Institutional Holders

Report period 30 Jun, 2026

Total shares held 46.07Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,919,992	15.28%	▲87,373	+1.28%	$986.72Mn
2	Invesco Ltd.	0000914208	3,124,839	6.90%	▲1,464,890	+88.25%	$445.57Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,757,438	6.09%	▼44,812	-1.60%	$393.18Mn
4	Capital World Investors	0001422849	2,580,132	5.70%	▲2,580,132	0.00%	$367.90Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,909,026	4.21%	▼7,475	-0.39%	$272.21Mn
6	State Street Corp	0000093751	1,802,261	3.98%	▼35,563	-1.94%	$256.98Mn
7	Boston Partners	0001386060	1,360,211	3.00%	▼108,667	-7.40%	$191.89Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,317,631	2.91%	▲176,851	+15.50%	$187.91Mn
9	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	1,309,202	2.89%	▲246,826	+23.23%	$186.68Mn
10	DIMENSIONAL FUND ADVISORS LP	0000354204	949,354	2.10%	▼62,424	-6.17%	$135.33Mn
11	ALLIANCEBERNSTEIN L.P.	0001109448	793,936	1.75%	▲736,754	+1,288.44%	$49.37Mn
12	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	739,967	1.63%	▼100,489	-11.96%	$105.51Mn
13	FRONTIER CAPITAL MANAGEMENT CO LLC	0000351173	667,532	1.47%	▼1,119,919	-62.65%	$95.18Mn
14	ROYCE & ASSOCIATES LP	0000906304	666,496	1.47%	▼93,001	-12.25%	$95.04Mn
15	OBERWEIS ASSET MANAGEMENT INC/	0000937886	647,276	1.43%	▲6,800	+1.06%	$92.30Mn
16	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	0000921739	624,028	1.38%	▲211,329	+51.21%	$88.98Mn
17	D. E. Shaw & Co., Inc.	0001009207	619,802	1.37%	▼563,455	-47.62%	$88.38Mn
18	TWO SIGMA INVESTMENTS, LP	0001179392	609,851	1.35%	▲28,720	+4.94%	$86.96Mn
19	PARADIGM CAPITAL MANAGEMENT INC/NY	0001037792	608,200	1.34%	0	0.00%	$86.72Mn
20	Morgan Stanley	0000895421	549,240	1.21%	▼362,460	-39.76%	$78.32Mn

Showing 1 to 20 of 433 holders