Ultra Clean Holdings, Inc.
UCTT- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001275014
In the last 90 days, Ultra Clean Holdings, Inc. insiders filed 0 open-market purchases and 1 sale; 438 institutions reported holding it in 13F filings for Q2 2026, worth $6.50B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Ultra Clean Holdings, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 331
- +97 vs. Q4 2025
- Shares held
- 45.0M
- +7.70M (+20.6%) vs. Q4 2025
- Total value
- $2.80B
- +$1.85B (+195.5%) vs. Q4 2025
- New holders
- 118
- 93 more added
- Sold out
- 21
- 84 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting UCTT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 438 | $6.50B |
| Q1 2026 | 331 | $2.80B |
| Q4 2025 | 238 | $1.08B |
| Q3 2025 | 242 | $1.15B |
| Q2 2025 | 231 | $950.2M |
| Q1 2025 | 228 | $893.9M |
| Q4 2024 | 233 | $1.49B |
| Q3 2024 | 250 | $1.61B |
| Q2 2024 | 217 | $2.01B |
| Q1 2024 | 204 | $1.88B |
| Q4 2023 | 195 | $1.38B |
| Q3 2023 | 205 | $1.19B |
| Q2 2023 | 200 | $1.54B |
| Q1 2023 | 204 | $1.33B |
| Q4 2022 | 221 | $1.33B |
| Q3 2022 | 213 | $1.01B |
| Q2 2022 | 235 | $1.15B |
| Q1 2022 | 264 | $1.60B |
| Q4 2021 | 275 | $2.16B |
| Q3 2021 | 239 | $1.59B |
| Q2 2021 | 263 | $2.05B |
| Q1 2021 | 240 | $2.05B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Ultra Clean Holdings, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,832,619 | $424.9M | 0.01% | +113,167+1.7% | Added |
| Vanguard Portfolio Management LLC | 2,802,250 | $174.2M | 0.01% | +2,802,250 | New |
| Vanguard Capital Management LLC | 1,916,501 | $119.2M | 0.00% | +1,916,501 | New |
| State Street Corp | 1,837,824 | $114.3M | 0.00% | −14,658−0.8% | Reduced |
| Frontier Capital Management Co LLC | 1,787,451 | $111.1M | 1.14% | −1,722,388−49.1% | Reduced |
| Invesco Ltd. | 1,659,949 | $103.2M | 0.01% | −1,739,885−51.2% | Reduced |
| Boston Partners | 1,468,878 | $91.4M | 0.10% | +1,468,878 | New |
| D. E. Shaw & Co., Inc. | 1,183,257 | $73.6M | 0.06% | +231,103+24.3% | Added |
| Geode Capital Management, LLC | 1,140,780 | $70.9M | 0.00% | +51,351+4.7% | Added |
| Driehaus Capital Management LLC | 1,062,376 | $66.1M | 0.49% | +608,746+134.2% | Added |
| Dimensional Fund Advisors LP | 1,011,778 | $62.9M | 0.01% | −513,079−33.6% | Reduced |
| Morgan Stanley | 911,700 | $56.7M | 0.00% | +17,277+1.9% | Added |
| Charles Schwab Investment Management Inc | 840,456 | $52.3M | 0.01% | +19,368+2.4% | Added |
| Royce & Associates LP | 759,497 | $47.2M | 0.47% | −339,196−30.9% | Reduced |
| Millennium Management LLC | 685,436 | $42.6M | 0.03% | +125,481+22.4% | Added |
| Oberweis Asset Management Inc | 640,476 | $39.8M | 1.18% | +11,976+1.9% | Added |
| Paradigm Capital Management Inc | 608,200 | $37.8M | 1.45% | 00.0% | Unchanged |
| Cooper Creek Partners Management LLC | 586,773 | $36.5M | 1.75% | +586,773 | New |
| Two Sigma Investments, LP | 581,131 | $36.1M | 0.03% | +581,131 | New |
| SG Americas Securities, LLC | 565,569 | $35.2M | 0.04% | +439,526+348.7% | Added |
| Goldman Sachs Group Inc | 503,328 | $31.3M | 0.00% | −54,848−9.8% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 475,073 | $29.5M | 0.10% | +461,568+3,417.8% | Added |
| Northern Trust Corp | 458,142 | $28.5M | 0.00% | −5,118−1.1% | Reduced |
| Bank of America Corp | 454,020 | $28.2M | 0.00% | +378,648+502.4% | Added |
| Bank of New York Mellon Corp | 443,653 | $27.6M | 0.01% | −191,319−30.1% | Reduced |
| Pinnacle Associates Ltd | 441,659 | $27.5M | 0.35% | −20,467−4.4% | Reduced |
| First Eagle Investment Management, LLC | 434,100 | $27.0M | 0.05% | +23,531+5.7% | Added |
| Divisar Capital Management LLC | 420,049 | $26.1M | 6.66% | −529,279−55.8% | Reduced |
| Nomura Asset Management International Inc. | 412,699 | $25.7M | 0.04% | +412,699 | New |
| Russell Investments Group, Ltd. | 359,945 | $22.4M | 0.02% | +295,264+456.5% | Added |
| UBS Group AG | 351,296 | $21.8M | 0.00% | +118,851+51.1% | Added |
| ION Fund Management Ltd | 349,852 | $21.8M | 3.32% | +349,852 | New |
| BNP Paribas Arbitrage, SA | 323,876 | $20.1M | 0.01% | −102,685−24.1% | Reduced |
| Goodman Financial Corp | 311,104 | $19.3M | 3.32% | −246,915−44.2% | Reduced |
| Jane Street Group, LLC | 309,703 | $19.3M | 0.02% | +208,149+205.0% | Added |
| JPMorgan Chase & Co | 336,363 | $18.8M | 0.00% | −176,127−34.4% | Reduced |
| Vanguard Fiduciary Trust Co | 292,790 | $18.2M | 0.00% | +292,790 | New |
| Next Century Growth Investors LLC | 280,543 | $17.4M | 1.26% | +280,543 | New |
| Public Sector Pension Investment Board | 277,351 | $17.2M | 0.05% | +120,174+76.5% | Added |
| MetLife Investment Management | 267,871 | $16.7M | 0.08% | +241,671+922.4% | Added |
| Marshall Wace, LLP | 259,852 | $16.2M | 0.02% | +146,376+129.0% | Added |
| Ameriprise Financial Inc | 252,367 | $15.7M | 0.00% | −13,165−5.0% | Reduced |
| Dana Investment Advisors, Inc. | 249,436 | $15.5M | 0.46% | −140,080−36.0% | Reduced |
| Loomis Sayles & Co L P | 231,058 | $14.4M | 0.02% | +231,058 | New |
| Citigroup Inc | 227,504 | $14.1M | 0.01% | +158,550+229.9% | Added |
| Prudential Financial Inc | 221,486 | $13.8M | 0.02% | +145,968+193.3% | Added |
| Principal Financial Group Inc | 220,650 | $13.7M | 0.01% | +4,338+2.0% | Added |
| G2 Investment Partners Management LLC | 180,941 | $11.3M | 2.77% | +180,941 | New |
| AQR Capital Management LLC | 178,782 | $11.1M | 0.01% | −39,881−18.2% | Reduced |
| Federated Hermes, Inc. | 172,106 | $10.7M | 0.02% | +172,106 | New |
| Wells Fargo & Company | 171,602 | $10.7M | 0.00% | +90,201+110.8% | Added |
| SG Capital Management LLC | 165,185 | $10.3M | 0.85% | +165,185 | New |
| Redwood Grove Capital, LLC | 162,358 | $10.1M | 3.26% | +162,358 | New |
| Allspring Global Investments Holdings, LLC | 158,256 | $10.0M | 0.02% | +142,906+931.0% | Added |
| Assenagon Asset Management S.A. | 141,434 | $8.79M | 0.01% | +52,214+58.5% | Added |
| Citadel Advisors LLC | 139,223 | $8.66M | 0.01% | +107,904+344.5% | Added |
| Toronto Dominion Bank | 129,863 | $8.07M | 0.02% | +111,736+616.4% | Added |
| Rhumbline Advisers | 127,703 | $7.94M | 0.01% | +1,246+1.0% | Added |
| Silvercrest Asset Management Group LLC | 125,924 | $7.83M | 0.06% | +125,924 | New |
| First Sabrepoint Capital Management LP | 125,000 | $7.77M | 3.18% | +125,000 | New |
| American Century Companies Inc | 123,171 | $7.66M | 0.00% | +3,935+3.3% | Added |
| Tyro Capital Management LLC | 119,133 | $7.41M | 1.88% | +119,133 | New |
| Barclays PLC | 112,679 | $7.01M | 0.00% | +43,024+61.8% | Added |
| Grace & White Inc | 109,950 | $6.84M | 1.21% | −4,500−3.9% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 106,209 | $6.60M | 0.01% | +84,272+384.2% | Added |
| UBS Asset Management Americas Inc | 104,585 | $6.50M | 0.00% | +15,148+16.9% | Added |
| Winton Group Ltd | 104,240 | $6.48M | 0.23% | +16,730+19.1% | Added |
| Legal & General Group Plc | 103,810 | $6.45M | 0.00% | −10,893−9.5% | Reduced |
| Castleark Management LLC | 100,130 | $6.23M | 0.21% | +100,130 | New |
| Divisadero Street Capital Management, LP | 100,000 | $6.22M | 0.29% | +100,000 | New |
| Raymond James Financial Inc | 98,389 | $6.12M | 0.00% | +35,383+56.2% | Added |
| Deutsche Bank AG | 97,466 | $6.06M | 0.00% | +5,871+6.4% | Added |
| Cramer Rosenthal McGlynn LLC | 94,265 | $5.86M | 0.43% | +94,265 | New |
| Nuveen, LLC | 93,871 | $5.84M | 0.00% | +3,682+4.1% | Added |
| Calamos Advisors LLC | 89,869 | $5.59M | 0.02% | +89,869 | New |
| Swiss National Bank | 89,800 | $5.58M | 0.00% | +400+0.4% | Added |
| Walleye Capital LLC | 87,453 | $5.44M | 0.03% | +65,206+293.1% | Added |
| Fifth Third Bancorp | 84,470 | $5.25M | 0.01% | +84,257+39,557.3% | Added |
| Bridge City Capital, LLC | 81,226 | $5.05M | 1.40% | +109+0.1% | Added |
| SEI Investments Co | 77,983 | $4.85M | 0.00% | +69,069+774.8% | Added |
| 4D Advisors, LLC | 75,000 | $4.66M | 2.96% | −60,000−44.4% | Reduced |
| Bank of Montreal | 67,217 | $4.18M | 0.00% | +67,217 | New |
| Atom Investors LP | 66,453 | $4.13M | 0.30% | +66,453 | New |
| New York State Common Retirement Fund | 65,889 | $4.10M | 0.01% | +29,664+81.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 60,000 | $3.73M | 0.01% | 00.0% | Unchanged |
| Lisanti Capital Growth, LLC | 59,835 | $3.72M | 0.94% | +59,835 | New |
| Arrowstreet Capital, Limited Partnership | 56,429 | $3.51M | 0.00% | +56,429 | New |
| Price T Rowe Associates Inc | 52,085 | $3.24M | 0.00% | +8,996+20.9% | Added |
| ExodusPoint Capital Management, LP | 52,062 | $3.24M | 0.03% | +18,132+53.4% | Added |
| California State Teachers Retirement System | 51,643 | $3.21M | 0.00% | +10,084+24.3% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 51,415 | $3.20M | 0.18% | +51,415 | New |
| Longaeva Partners L.P. | 45,004 | $2.80M | 0.13% | +45,004 | New |
| Boothbay Fund Management, LLC | 44,584 | $2.77M | 0.07% | +44,584 | New |
| Teton Advisors, LLC | 42,000 | $2.61M | 1.84% | −1,000−2.3% | Reduced |
| EAM Investors, LLC | 41,803 | $2.60M | 0.30% | +41,803 | New |
| Intech Investment Management LLC | 41,503 | $2.58M | 0.03% | +24,012+137.3% | Added |
| Acadian Asset Management LLC | 41,192 | $2.55M | 0.00% | +41,192 | New |
| Great West Life Assurance Co | 39,035 | $2.43M | 0.00% | +2,028+5.5% | Added |
| Legato Capital Management LLC | 38,911 | $2.42M | 0.22% | +27,993+256.4% | Added |
| Liontrust Investment Partners LLP | 38,773 | $2.41M | 0.04% | +38,773 | New |