Who owns Ultra Clean Holdings, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of UCTT from SEC Form 13F filings across 438 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 438 institutions disclosed 46.1M shares of Ultra Clean Holdings, Inc. worth $6.50B — about 102.3% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
438
13F holders
$6.50B
value, 2026 filers
102.3%
of shares outstanding (46.1M sh)
148
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of UCTT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.9M | $986.7M | 0.0% | 15.3% | +1.3% |
| 2 | Invesco Ltd. | 3.1M | $445.6M | 0.0% | 6.9% | +88.2% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $393.2M | 0.0% | 6.1% | -1.6% |
| 4 | Capital World InvestorsNEW | 2.6M | $367.9M | 0.0% | 5.7% | new |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $272.2M | 0.0% | 4.2% | -0.4% |
| 6 | STATE STREET CORP | 1.8M | $257.0M | 0.0% | 4% | -1.9% |
| 7 | Boston Partners | 1.4M | $191.9M | 0.2% | 3% | -7.4% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $187.9M | 0.0% | 2.9% | +15.5% |
| 9 | Driehaus Capital Management LLC | 1.3M | $186.7M | 1.1% | 2.9% | +23.2% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 949,354 | $135.3M | 0.0% | 2.1% | -6.2% |
| 11 | ALLIANCEBERNSTEIN L.P. | 793,936 | $49.4M | 0.0% | 1.8% | +1288.4% |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 739,967 | $105.5M | 0.0% | 1.6% | -12.0% |
| 13 | FRONTIER CAPITAL MANAGEMENT CO LLC | 667,532 | $95.2M | 0.9% | 1.5% | -62.7% |
| 14 | ROYCE & ASSOCIATES LP | 666,496 | $95.0M | 0.8% | 1.5% | -12.2% |
| 15 | OBERWEIS ASSET MANAGEMENT INC/ | 647,276 | $92.3M | 1.9% | 1.4% | +1.1% |
| 16 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 624,028 | $89.0M | 0.1% | 1.4% | +51.2% |
| 17 | D. E. Shaw & Co., Inc. | 619,802 | $88.4M | 0.0% | 1.4% | -47.6% |
| 18 | TWO SIGMA INVESTMENTS, LP | 609,851 | $87.0M | 0.1% | 1.4% | +4.9% |
| 19 | PARADIGM CAPITAL MANAGEMENT INC/NY | 608,200 | $86.7M | 2.4% | 1.3% | 0.0% |
| 20 | MORGAN STANLEY | 549,240 | $78.3M | 0.0% | 1.2% | -39.8% |
| 21 | FULLER & THALER ASSET MANAGEMENT, INC. | 492,608 | $70.2M | 0.2% | 1.1% | +3.7% |
| 22 | NORTHERN TRUST CORP | 491,504 | $70.1M | 0.0% | 1.1% | +7.3% |
| 23 | BANK OF AMERICA CORP /DE/ | 425,191 | $60.6M | 0.0% | 0.9% | -6.3% |
| 24 | PINNACLE ASSOCIATES LTD | 399,934 | $57.0M | 0.6% | 0.9% | -9.4% |
| 25 | MILLENNIUM MANAGEMENT LLC | 388,205 | $55.4M | 0.0% | 0.9% | -43.4% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.