Ultra Clean HoldingsUCTT
13F holders, Q1 2026 (March 31)331holders +93
111new positions
20sold out
6famous investors
$62.09avg. 13F price*
At the end of Q1 2026, 331 institutions reported holding Ultra Clean Holdings Inc. (UCTT) in their 13F filings, up 93 from Q4 2025. 111 opened new positions and 20 sold out. The largest holders were BlackRock, Inc. ($424.9M), Vanguard Portfolio Management LLC ($174.2M) and Vanguard Capital Management LLC ($119.2M). 6 famous investors held it, including David E. Shaw (0.1% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Lee Ainslie (0.0% of Maverick Capital's portfolio).
- Company
- Ultra Clean Holdings Inc.
- CUSIP
- 90385V107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 111 | $403.8M |
| Exits | 20 | $48.5M |
All 13F filers, Q4 2025 → Q1 2026: 11,594,898 shares bought and 8,953,080 shares sold, net +2,641,818 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 331 holders
| BlackRock, Inc. | 0.01% | Add +1.7% | 6,832,619 | $424.9M |
| Vanguard Portfolio Management LLC | 0.01% | — | 2,802,250 | $174.2M |
| Vanguard Capital Management LLC | 0.00% | — | 1,916,501 | $119.2M |
| State Street Corp. | 0.00% | Reduce -0.8% | 1,837,824 | $114.3M |
| Frontier Capital Management Co. LLC | 1.14% | Reduce -49.1% | 1,787,451 | $111.1M |
| Invesco Ltd. | 0.01% | Reduce -51.2% | 1,659,949 | $103.2M |
| Boston Partners | 0.10% | New | 1,468,878 | $91.4M |
| D. E. Shaw & Co. | 0.06% | Add +24.3% | 1,183,257 | $73.6M |
| Geode Capital Management, LLC | 0.00% | Add +4.7% | 1,140,780 | $70.9M |
| Driehaus Capital Management LLC | 0.49% | Add +134.2% | 1,062,376 | $66.1M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -33.6% | 1,011,778 | $62.9M |
| Morgan Stanley | 0.00% | Add +1.9% | 911,700 | $56.7M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +2.4% | 840,456 | $52.3M |
| Royce & Associates LP | 0.47% | Reduce -30.9% | 759,497 | $47.2M |
| Millennium Management | 0.03% | Add +22.4% | 685,436 | $42.6M |
| Oberweis Asset Management Inc./ | 1.18% | Add +1.9% | 640,476 | $39.8M |
| Paradigm Capital Management Inc. | 1.45% | No change | 608,200 | $37.8M |
| Cooper Creek Partners Management LLC | 1.75% | New | 586,773 | $36.5M |
| Two Sigma Investments, LP | 0.03% | New | 581,131 | $36.1M |
| SG Americas Securities, LLC | 0.04% | Add +348.7% | 565,569 | $35.2M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -9.8% | 503,328 | $31.3M |
| Fuller & Thaler Asset Management, Inc. | 0.10% | Add +3417.8% | 475,073 | $29.5M |
| Northern Trust Corp. | 0.00% | Reduce -1.1% | 458,142 | $28.5M |
| Bank of America Corp. | 0.00% | Add +502.4% | 454,020 | $28.2M |
| Bank of New York Mellon Corp | 0.01% | Reduce -30.1% | 443,653 | $27.6M |
| Pinnacle Associates Ltd. | 0.35% | Reduce -4.4% | 441,659 | $27.5M |
| First Eagle Investment Management, LLC | 0.05% | Add +5.7% | 434,100 | $27.0M |
| Divisar Capital Management LLC | 6.66% | Reduce -55.8% | 420,049 | $26.1M |
| Nomura Asset Management International Inc. | 0.04% | New | 412,699 | $25.7M |
| Russell Investments Group, Ltd. | 0.02% | Add +456.5% | 359,945 | $22.4M |
| UBS Group AG | 0.00% | Add +51.1% | 351,296 | $21.8M |
| ION Fund Management Ltd | 3.32% | New | 349,852 | $21.8M |
| BNP Paribas Financial Markets | 0.01% | Reduce -24.1% | 323,876 | $20.1M |
| Goodman Financial Corp | 3.32% | Reduce -44.3% | 311,104 | $19.3M |
| Jane Street Group, LLC | 0.02% | Add +205.0% | 309,703 | $19.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -34.4% | 336,363 | $18.8M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 292,790 | $18.2M |
| Next Century Growth Investors LLC | 1.26% | New | 280,543 | $17.4M |
| Public Sector Pension Investment Board | 0.05% | Add +76.5% | 277,351 | $17.2M |
| MetLife Investment Management, LLC | 0.08% | Add +922.4% | 267,871 | $16.7M |
| Marshall Wace, LLP | 0.02% | Add +129.0% | 259,852 | $16.2M |
| Ameriprise Financial Inc. | 0.00% | Reduce -5.0% | 252,367 | $15.7M |
| Dana Investment Advisors, Inc. | 0.46% | Reduce -36.0% | 249,436 | $15.5M |
| Loomis Sayles & Co. L P | 0.02% | New | 231,058 | $14.4M |
| Citigroup Inc. | 0.01% | Add +229.9% | 227,504 | $14.1M |
| Prudential Financial Inc. | 0.02% | Add +193.3% | 221,486 | $13.8M |
| Principal Financial Group Inc. | 0.01% | Add +2.0% | 220,650 | $13.7M |
| G2 Investment Partners Management LLC | 2.77% | New | 180,941 | $11.3M |
| AQR Capital Management | 0.01% | Reduce -18.2% | 178,782 | $11.1M |
| Federated Hermes, Inc. | 0.02% | New | 172,106 | $10.7M |
| Wells Fargo & Company | 0.00% | Add +110.8% | 171,602 | $10.7M |
| SG Capital Management LLC | 0.85% | New | 165,185 | $10.3M |
| Redwood Grove Capital, LLC | 3.26% | New | 162,358 | $10.1M |
| Allspring Global Investments Holdings, LLC | 0.02% | Add +931.0% | 158,256 | $10.0M |
| Assenagon Asset Management S.A. | 0.01% | Add +58.5% | 141,434 | $8.8M |
| Citadel Advisors | 0.01% | Add +344.5% | 139,223 | $8.7M |
| Toronto Dominion Bank | 0.02% | Add +616.4% | 129,863 | $8.1M |
| Rhumbline Advisers | 0.01% | Add +1.0% | 127,703 | $7.9M |
| Silvercrest Asset Management Group LLC | 0.06% | New | 125,924 | $7.8M |
| First Sabrepoint Capital Management LP | 3.18% | New | 125,000 | $7.8M |
| American Century Companies Inc. | 0.00% | Add +3.3% | 123,171 | $7.7M |
| Tyro Capital Management LLC | 1.88% | New | 119,133 | $7.4M |
| Barclays PLC | 0.00% | Add +61.8% | 112,679 | $7.0M |
| Grace & White Inc. | 1.22% | Reduce -3.9% | 109,950 | $6.8M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +384.1% | 106,209 | $6.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +16.9% | 104,585 | $6.5M |
| WINTON GROUP Ltd | 0.23% | Add +19.1% | 104,240 | $6.5M |
| Legal & General Group Plc | 0.00% | Reduce -9.5% | 103,810 | $6.5M |
| Castleark Management LLC | 0.21% | New | 100,130 | $6.2M |
| Divisadero Street Capital Management, LP | 0.29% | New | 100,000 | $6.2M |
| Raymond James Financial Inc. | 0.00% | Add +56.2% | 98,389 | $6.1M |
| Deutsche Bank AG | 0.00% | Add +6.4% | 97,466 | $6.1M |
| Cramer Rosenthal McGlynn LLC | 0.43% | New | 94,265 | $5.9M |
| Nuveen, LLC | 0.00% | Add +4.1% | 93,871 | $5.8M |
| Calamos Advisors LLC | 0.03% | New | 89,869 | $5.6M |
| Swiss National Bank | 0.00% | Add +0.5% | 89,800 | $5.6M |
| Walleye Capital LLC | 0.04% | Add +293.1% | 87,453 | $5.4M |
| Fifth Third Bancorp | 0.01% | Add +39557.3% | 84,470 | $5.3M |
| Bridge City Capital, LLC | 1.40% | Add +0.1% | 81,226 | $5.1M |
| Sei Investments Co. | 0.00% | Add +774.8% | 77,983 | $4.8M |
| 4D Advisors, LLC | 2.96% | Reduce -44.4% | 75,000 | $4.7M |
| Bank of Montreal | 0.00% | New | 67,217 | $4.2M |
| Atom Investors LP | 0.30% | New | 66,453 | $4.1M |
| New York State Common Retirement Fund | 0.01% | Add +81.9% | 65,889 | $4.1M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | No change | 60,000 | $3.7M |
| Lisanti Capital Growth, LLC | 0.94% | New | 59,835 | $3.7M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 56,429 | $3.5M |
| T. Rowe Price Associates Inc. | 0.00% | Add +20.9% | 52,085 | $3.2M |
| ExodusPoint Capital Management, LP | 0.03% | Add +53.4% | 52,062 | $3.2M |
| California State Teachers Retirement System | 0.00% | Add +24.3% | 51,643 | $3.2M |
| Lombard Odier Asset Management (Europe) Ltd | 0.26% | New | 51,415 | $3.2M |
| Longaeva Partners L.P. | 0.13% | New | 45,004 | $2.8M |
| Boothbay Fund Management, LLC | 0.07% | New | 44,584 | $2.8M |
| Teton Advisors, LLC | 1.84% | Reduce -2.3% | 42,000 | $2.6M |
| Informed Momentum Co LLC | 0.30% | New | 41,803 | $2.6M |
| Intech Investment Management LLC | 0.03% | Add +137.3% | 41,503 | $2.6M |
| Acadian Asset Management LLC | 0.00% | New | 41,192 | $2.6M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +5.5% | 39,035 | $2.4M |
| Legato Capital Management LLC | 0.22% | Add +256.4% | 38,911 | $2.4M |
| Liontrust Investment Partners LLP | 0.04% | New | 38,773 | $2.4M |
"% of holder's portfolio" is UCTT's weight in each manager's 13F, not the share of Ultra Clean Holdings Inc. the manager owns.