Ultra Clean Holdings, Inc.

UCTTNASDAQ

$74.02+1.33 (+1.83%)as of Oct 5, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Ultra Clean Holdings, Inc. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+152.0%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	15.28%	$987M	0.01%	Not reported
Invesco Ltd.	6.90%	$446M	0.04%	Not reported
Vanguard Portfolio Management LLC	6.09%	$393M	0.02%	Not reported
Capital World Investors	5.70%	$368M	0.04%	New Not reported
Vanguard Capital Management LLC	4.21%	$272M	0.01%	Not reported
State Street Corp	3.98%	$257M	0.01%	Not reported
Geode Capital Management, LLC	2.91%	$188M	0.01%	Not reported
Driehaus Capital Management LLC	2.89%	$187M	1.08%	Add 23.23%
Dimensional Fund Advisors LP	2.10%	$135M	0.02%	Not reported
Alliancebernstein L.P.	1.75%	$49.4M	0.02%	Not reported
Charles Schwab Investment Management Inc	1.63%	$106M	0.01%	Not reported
First Eagle Investment Management, LLC	1.54%	$99.2M	0.08%	Add 60.30%
Frontier Capital Management Co LLC	1.47%	$95.2M	0.89%	Reduce 62.65%
Royce & Associates LP	1.47%	$95M	0.77%	Not reported
Oberweis Asset Management Inc/	1.43%	$92.3M	1.91%	Add 1.06%
Nomura Asset Management International Inc.	1.38%	$89M	0.13%	Add 51.21%
D. E. Shaw & Co., Inc.	1.37%	$88.4M	0.04%	Not reported
Two Sigma Investments, LP	1.35%	$87M	0.06%	Not reported
Paradigm Capital Management Inc	1.34%	$86.7M	2.36%	Not reported
Assenagon Asset Management S.A.	1.23%	$79.3M	0.05%	Not reported
Morgan Stanley	1.21%	$78.3M	0.00%	Not reported
Fuller & Thaler Asset Management, Inc.	1.09%	$70.2M	0.19%	Not reported
Northern Trust Corp	1.09%	$70.1M	0.01%	Not reported
Bank of America Corp	0.94%	$60.6M	0.00%	Not reported
Pinnacle Associates Ltd	0.88%	$57M	0.62%	Reduce 9.45%
Millennium Management LLC	0.86%	$55.4M	0.02%	Not reported
BNP Paribas Financial Markets	0.82%	$53.3M	0.02%	Not reported
Wells Fargo & Company	0.77%	$49.7M	0.01%	Not reported
Goldman Sachs Group Inc	0.76%	$49.3M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.70%	$45.5M	0.01%	Not reported
Russell Investments Group, Ltd.	0.67%	$43.2M	0.04%	Not reported
ION Fund Management Ltd	0.66%	$42.5M	2.70%	Reduce 14.82%
UBS Group AG	0.65%	$41.9M	0.01%	Not reported
T. Rowe Price Investment Management, Inc.	0.63%	$40.4M	0.03%	New Not reported
Bank of New York Mellon Corp	0.60%	$38.5M	0.01%	Not reported
Goodman Financial Corp	0.49%	$31.8M	4.92%	Reduce 28.27%
Next Century Growth Investors LLC	0.49%	$31.4M	1.66%	Reduce 21.54%
Prudential Financial Inc	0.48%	$31.3M	0.03%	Not reported
Principal Financial Group Inc	0.48%	$31.2M	0.02%	Not reported
Nuveen, LLC	0.48%	$31.1M	0.01%	Not reported
Wealth High Governance Asset Management Ltda.	0.48%	$31M	3.30%	New Not reported
Public Sector Pension Investment Board	0.47%	$30.3M	0.08%	Reduce 23.47%
AQR Capital Management LLC	0.46%	$30M	0.01%	Not reported
JPMorgan Chase & Co	0.46%	$27.5M	0.00%	Not reported
Loomis Sayles & Co L P	0.45%	$29M	0.04%	Reduce 11.91%
Healthcare of Ontario Pension Plan Trust Fund	0.43%	$27.6M	0.04%	Add 222.28%
Munro Partners	0.41%	$26.2M	0.58%	New Not reported
Federated Hermes, Inc.	0.37%	$23.8M	0.03%	Not reported
Divisar Capital Management LLC	0.34%	$22.2M	5.11%	Reduce 62.94%
Marshall Wace, LLP	0.32%	$20.6M	0.02%	Not reported

50 of 405 holders

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