What does CUSIP 90385V107 represent in this 13F holders report?

CUSIP 90385V107 is the security identifier for UCTT - Ultra Clean Holdings, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held UCTT - Ultra Clean Holdings, Inc. - Common Stock in Q1 2021?

233 institutional investors reported UCTT - Ultra Clean Holdings, Inc. - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

Ultra Clean Holdings, Inc. - Common Stock (UCTT)

CUSIP: 90385V107

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / Common Stock
Shares outstanding: 45,405,420
Total 13F shares: 35,311,728
Share change: +621,905
Total reported value: $2,048,428,315
Put/Call ratio: 141%
Price per share: $58.04
Number of holders: 233
Value change: +$66,461,284
Number of buys: 113
Number of sells: 130

Quarterly Holders Quick Answers

What is CUSIP 90385V107?
CUSIP 90385V107 identifies UCTT - Ultra Clean Holdings, Inc. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP 90385V107:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of UCTT - Ultra Clean Holdings, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock Finance, Inc.	13F	Company	15%	6,917,582	$215,481,000	—	31 Dec 2020	13F
Swedbank	13F	Company	7.3%	3,300,000	$103,983,000	—	31 Dec 2020	13F
VANGUARD GROUP INC	13F	Company	6.6%	2,988,372	$93,087,000	—	31 Dec 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	4.8%	2,157,392	$67,204,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	2.8%	1,286,172	$40,064,000	—	31 Dec 2020	13F
PARADIGM CAPITAL MANAGEMENT INC/NY	13F	Company	2.8%	1,260,400	$39,261,000	—	31 Dec 2020	13F
ROYCE & ASSOCIATES LP	13F	Company	2%	899,761	$28,028,000	—	31 Dec 2020	13F
DRIEHAUS CAPITAL MANAGEMENT LLC	13F	Company	1.9%	866,247	$26,984,000	—	31 Dec 2020	13F
Boston Partners	13F	Company	1.9%	856,715	$26,686,000	—	31 Dec 2020	13F
Divisar Capital Management LLC	13F	Company	1.7%	751,942	$23,423,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.4%	630,218	$19,631,000	—	31 Dec 2020	13F
Invesco Ltd.	13F	Company	1.3%	612,436	$19,077,000	—	31 Dec 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	1.3%	610,969	$19,036,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	1.2%	528,841	$16,473,000	—	31 Dec 2020	13F
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	1.1%	521,078	$16,232,000	—	31 Dec 2020	13F
LSV ASSET MANAGEMENT	13F	Company	0.97%	439,889	$13,702,000	—	31 Dec 2020	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.95%	431,923	$13,456,000	—	31 Dec 2020	13F
Smith, Graham & Co., Investment Advisors, LP	13F	Company	0.93%	422,797	$13,170,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	0.9%	410,045	$12,773,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.81%	369,628	$11,514,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.76%	346,343	$10,789,000	—	31 Dec 2020	13F
ROTHSCHILD & CO ASSET MANAGEMENT US INC.	13F	Company	0.68%	306,543	$9,549,000	—	31 Dec 2020	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.64%	288,761	$8,994,000	—	31 Dec 2020	13F
JPMORGAN CHASE & CO	13F	Company	0.63%	287,998	$8,972,000	—	31 Dec 2020	13F
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F	Company	0.61%	278,387	$8,672,000	—	31 Dec 2020	13F
FULLER & THALER ASSET MANAGEMENT, INC.	13F	Company	0.59%	268,596	$8,367,000	—	31 Dec 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.58%	263,565	$8,210,000	—	31 Dec 2020	13F
PINNACLE ASSOCIATES LTD	13F	Company	0.54%	246,649	$7,683,000	—	31 Dec 2020	13F
BANK OF MONTREAL /CAN/	13F	Company	0.4%	181,868	$6,838,000	—	31 Dec 2020	13F
Allianz Asset Management GmbH	13F	Company	0.48%	218,868	$6,818,000	—	31 Dec 2020	13F
THB ASSET MANAGEMENT	13F	Company	0.47%	212,491	$6,619,000	—	31 Dec 2020	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.46%	208,400	$6,492,000	—	31 Dec 2020	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	0.43%	193,637	$6,032,000	—	31 Dec 2020	13F
G2 Investment Partners Management LLC	13F	Company	0.42%	191,000	$5,950,000	—	31 Dec 2020	13F
AWM Investment Company, Inc.	13F	Company	0.41%	185,391	$5,775,000	—	31 Dec 2020	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.38%	172,080	$5,360,000	—	31 Dec 2020	13F
Pacific Ridge Capital Partners, LLC	13F	Company	0.36%	162,116	$5,050,000	—	31 Dec 2020	13F
MORGAN STANLEY	13F	Company	0.31%	139,457	$4,344,000	—	31 Dec 2020	13F
CITADEL ADVISORS LLC	13F	Company	0.31%	139,374	$4,342,000	—	31 Dec 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.31%	138,528	$4,315,000	—	31 Dec 2020	13F
Teton Advisors, Inc.	13F	Company	0.3%	135,890	$4,233,000	—	31 Dec 2020	13F
Cubist Systematic Strategies, LLC	13F	Company	0.28%	128,325	$3,997,000	—	31 Dec 2020	13F
Hillsdale Investment Management Inc.	13F	Company	0.28%	125,200	$3,900,000	—	31 Dec 2020	13F
LOS ANGELES CAPITAL MANAGEMENT LLC	13F	Company	0.27%	123,308	$3,841,000	—	31 Dec 2020	13F
Legal & General Group Plc	13F	Company	0.25%	114,294	$3,560,000	—	31 Dec 2020	13F
RHUMBLINE ADVISERS	13F	Company	0.24%	110,496	$3,442,000	—	31 Dec 2020	13F
Global IMC LLC	13F	Company	0.24%	107,543	$3,350,000	—	31 Dec 2020	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.23%	104,506	$3,255,000	—	31 Dec 2020	13F
MACKAY SHIELDS LLC	13F	Company	0.23%	104,500	$3,255,000	—	31 Dec 2020	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.23%	103,996	$3,239,000	—	31 Dec 2020	13F

Institutional Holders of Ultra Clean Holdings, Inc. - Common Stock (UCTT) as of Q1 2021

As of 31 Mar 2021, Ultra Clean Holdings, Inc. - Common Stock (UCTT) was held by 233 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 35,311,728 shares. The largest 10 holders included BlackRock Inc., VANGUARD GROUP INC, Swedbank AB, DIMENSIONAL FUND ADVISORS LP, DRIEHAUS CAPITAL MANAGEMENT LLC, STATE STREET CORP, PARADIGM CAPITAL MANAGEMENT INC/NY, Boston Partners, ROYCE & ASSOCIATES LP, and Invesco Ltd.. This page lists 233 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

219

Q1 2021 holders

233

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.