Ultra Clean Holdings UCTT Institutional Ownership

NASDAQ UCTT

$72.69 -5.95 (-7.57%)

At close: Oct 2, 2026 · 4:00 PM EDT

Institutions by Trading Activity

434 Institutions

Increased 239 55.1%

Unchanged 34 7.8%

Reduced 161 37.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

103.80%

▲+4.58 pp QoQ

Shares Held by Institutions

46.81Mn

of 45.10Mn outstanding

▲+7.64% QoQ

Shares Outstanding

45.10Mn

-1.71Mn held outside 13F filers

Institutional Investors

434

filed 13F for Jun 2026

▲+105 vs prior quarter

Net Shares Added (QoQ)

+3.32Mn

accumulated since last quarter

Value of Holdings

$3.68Bn

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

Quarter ending 30 Jun, 2026

Ultra Clean Holdings, Inc. (NASDAQ:UCTT) has 434 institutional investors with active 13F positions as of June 2026.

These investors collectively held 103.8% of Ultra Clean Holdings's outstanding shares in June 2026, up from 99.2% in March 2026.
They increased total shares held in Ultra Clean Holdings by 7.64% from the prior quarter, while the number of investors in UCTT increased 89.52% year over year.
Of these 434 funds, 239 grew their exposure to Ultra Clean Holdings, 161 cut back, and 34 maintained positions.
In total, institutional investors held 46.81Mn shares in Ultra Clean Holdings as of June 2026, up by 3.32Mn shares quarter on quarter, and up 5.58Mn shares year over year.
BlackRock, Inc. holds the largest position in UCTT at 6.92Mn shares as of June 30, 2026, or 15.34% of shares outstanding.
The biggest buyers of Ultra Clean Holdings for the quarter ending June 2026 included Capital World Investors (2.58Mn), Invesco Ltd. (1.46Mn), Sixth Street Partners Management Company, L.P. (739.97K), ALLIANCEBERNSTEIN L.P. (736.75K), Franklin Templeton Inc (339.73K).
The largest sellers of Ultra Clean Holdings for the quarter ending June 2026 were FRONTIER CAPITAL MANAGEMENT CO LLC (1.12Mn), SG Americas Securities, LLC (563.82K), D. E. Shaw & Co., Inc. (563.46K), Morgan Stanley (362.46K), JANE STREET GROUP, LLC (307.73K).
Business Quant data shows the 10 biggest positions in Ultra Clean Holdings as of June 2026 are held by BlackRock, Inc. (6.92Mn), Invesco Ltd. (3.12Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.76Mn), Capital World Investors (2.58Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.91Mn), State Street Corp (1.8Mn), Boston Partners (1.36Mn), GEODE CAPITAL MANAGEMENT, LLC (1.32Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (1.31Mn), DIMENSIONAL FUND ADVISORS LP (949.35K).

Form 13F Holdings

434 Institutional Holders

Report period 30 Jun, 2026

Total shares held 46.81Mn

Of outstanding 103.80%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,919,992	15.34%	▲87,373	+1.28%	$986.72Mn
2	Invesco Ltd.	0000914208	3,124,839	6.93%	▲1,464,890	+88.25%	$445.57Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,757,438	6.11%	▼44,812	-1.60%	$393.18Mn
4	Capital World Investors	0001422849	2,580,132	5.72%	▲2,580,132	0.00%	$367.90Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,909,026	4.23%	▼7,475	-0.39%	$272.21Mn
6	State Street Corp	0000093751	1,802,261	4.00%	▼35,563	-1.94%	$256.98Mn
7	Boston Partners	0001386060	1,360,211	3.02%	▼108,667	-7.40%	$191.89Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,317,631	2.92%	▲176,851	+15.50%	$187.91Mn
9	DRIEHAUS CAPITAL MANAGEMENT LLC	0000938206	1,309,202	2.90%	▲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	1.76%	▲736,754	+1,288.44%	$49.37Mn
12	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	739,967	1.64%	▼100,489	-11.96%	$105.51Mn
12	Sixth Street Partners Management Company, L.P.	0001812095	739,967	1.64%	▲739,967	0.00%	$105.51Mn
13	FRONTIER CAPITAL MANAGEMENT CO LLC	0000351173	667,532	1.48%	▼1,119,919	-62.65%	$95.18Mn
14	ROYCE & ASSOCIATES LP	0000906304	666,496	1.48%	▼93,001	-12.25%	$95.04Mn
15	OBERWEIS ASSET MANAGEMENT INC/	0000937886	647,276	1.44%	▲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	1.35%	0	0.00%	$86.72Mn

Showing 1 to 20 of 434 holders