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 |
|---|---|---|---|---|---|
| Gsa Capital Partners LLP | 20,923 | $1.30M | 0.08% | +20,923 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 20,960 | $1.30M | 0.00% | +223+1.1% | Added |
| State of Tennessee, Treasury Department | 22,544 | $1.40M | 0.00% | −1,013−4.3% | Reduced |
| Man Group plc | 22,563 | $1.40M | 0.00% | −110,178−83.0% | Reduced |
| Alliancebernstein L.P. | 57,182 | $1.45M | 0.00% | −4,053−6.6% | Reduced |
| Motley Fool Asset Management LLC | 23,400 | $1.46M | 0.06% | +23,400 | New |
| Caxton Associates LLP | 23,977 | $1.49M | 0.03% | +5,922+32.8% | Added |
| Quantinno Capital Management LP | 24,134 | $1.50M | 0.00% | +1,178+5.1% | Added |
| State of Alaska, Department of Revenue | 24,282 | $1.51M | 0.02% | −811−3.2% | Reduced |
| Illinois Municipal Retirement Fund | 24,508 | $1.52M | 0.02% | +2,333+10.5% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 25,191 | $1.57M | 0.00% | +3,803+17.8% | Added |
| Diker Management LLC | 27,000 | $1.68M | 1.50% | +27,000 | New |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 27,300 | $1.70M | 0.37% | +27,300 | New |
| Royal Bank of Canada | 27,786 | $1.73M | 0.00% | +14,818+114.3% | Added |
| Envestnet Asset Management Inc | 27,974 | $1.74M | 0.00% | −14,907−34.8% | Reduced |
| Credit Agricole S A | 28,000 | $1.74M | 0.01% | +28,000 | New |
| New York State Teachers Retirement System | 28,591 | $1.78M | 0.00% | −1,478−4.9% | Reduced |
| Victory Capital Management Inc | 28,679 | $1.78M | 0.00% | −6,521−18.5% | Reduced |
| Vanguard Asset Management, Ltd | 29,719 | $1.85M | 0.00% | +29,719 | New |
| Gabelli Funds LLC | 30,000 | $1.87M | 0.01% | +4,153+16.1% | Added |
| Thrivent Financial for Lutherans | 30,295 | $1.88M | 0.00% | −892−2.9% | Reduced |
| Martingale Asset Management L P | 31,122 | $1.94M | 0.05% | −15,433−33.2% | Reduced |
| Skopos Labs, Inc. | 32,815 | $2.04M | 0.06% | +24,104+276.7% | Added |
| Trexquant Investment LP | 33,540 | $2.09M | 0.02% | −4,392−11.6% | Reduced |
| XTX Topco Ltd | 33,677 | $2.09M | 0.04% | +13,796+69.4% | Added |
| Portolan Capital Management, LLC | 33,700 | $2.10M | 0.11% | +33,700 | New |
| Nicholas Investment Partners, LP | 34,852 | $2.17M | 0.16% | +34,852 | New |
| Susquehanna International Group, LLP | 35,645 | $2.22M | 0.00% | +13,586+61.6% | Added |
| Tudor Investment Corp Et Al | 37,569 | $2.34M | 0.01% | +37,569 | New |
| Creative Planning | 38,319 | $2.38M | 0.00% | +9,185+31.5% | Added |
| Pathstone Holdings, LLC | 38,590 | $2.40M | 0.01% | −45,391−54.0% | Reduced |
| Liontrust Investment Partners LLP | 38,773 | $2.41M | 0.04% | +38,773 | New |
| Legato Capital Management LLC | 38,911 | $2.42M | 0.22% | +27,993+256.4% | Added |
| Great West Life Assurance Co | 39,035 | $2.43M | 0.00% | +2,028+5.5% | Added |
| Acadian Asset Management LLC | 41,192 | $2.55M | 0.00% | +41,192 | New |
| Intech Investment Management LLC | 41,503 | $2.58M | 0.03% | +24,012+137.3% | Added |
| EAM Investors, LLC | 41,803 | $2.60M | 0.30% | +41,803 | New |
| Teton Advisors, LLC | 42,000 | $2.61M | 1.84% | −1,000−2.3% | Reduced |
| Boothbay Fund Management, LLC | 44,584 | $2.77M | 0.07% | +44,584 | New |
| Longaeva Partners L.P. | 45,004 | $2.80M | 0.13% | +45,004 | New |
| Lombard Odier Asset Management (Europe) Ltd | 51,415 | $3.20M | 0.18% | +51,415 | New |
| California State Teachers Retirement System | 51,643 | $3.21M | 0.00% | +10,084+24.3% | Added |
| ExodusPoint Capital Management, LP | 52,062 | $3.24M | 0.03% | +18,132+53.4% | Added |
| Price T Rowe Associates Inc | 52,085 | $3.24M | 0.00% | +8,996+20.9% | Added |
| Arrowstreet Capital, Limited Partnership | 56,429 | $3.51M | 0.00% | +56,429 | New |
| Lisanti Capital Growth, LLC | 59,835 | $3.72M | 0.94% | +59,835 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 60,000 | $3.73M | 0.01% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 65,889 | $4.10M | 0.01% | +29,664+81.9% | Added |
| Atom Investors LP | 66,453 | $4.13M | 0.30% | +66,453 | New |
| Bank of Montreal | 67,217 | $4.18M | 0.00% | +67,217 | New |
| 4D Advisors, LLC | 75,000 | $4.66M | 2.96% | −60,000−44.4% | Reduced |
| SEI Investments Co | 77,983 | $4.85M | 0.00% | +69,069+774.8% | Added |
| Bridge City Capital, LLC | 81,226 | $5.05M | 1.40% | +109+0.1% | Added |
| Fifth Third Bancorp | 84,470 | $5.25M | 0.01% | +84,257+39,557.3% | Added |
| Walleye Capital LLC | 87,453 | $5.44M | 0.03% | +65,206+293.1% | Added |
| Swiss National Bank | 89,800 | $5.58M | 0.00% | +400+0.4% | Added |
| Calamos Advisors LLC | 89,869 | $5.59M | 0.02% | +89,869 | New |
| Nuveen, LLC | 93,871 | $5.84M | 0.00% | +3,682+4.1% | Added |
| Cramer Rosenthal McGlynn LLC | 94,265 | $5.86M | 0.43% | +94,265 | New |
| Deutsche Bank AG | 97,466 | $6.06M | 0.00% | +5,871+6.4% | Added |
| Raymond James Financial Inc | 98,389 | $6.12M | 0.00% | +35,383+56.2% | Added |
| Divisadero Street Capital Management, LP | 100,000 | $6.22M | 0.29% | +100,000 | New |
| Castleark Management LLC | 100,130 | $6.23M | 0.21% | +100,130 | New |
| Legal & General Group Plc | 103,810 | $6.45M | 0.00% | −10,893−9.5% | Reduced |
| Winton Group Ltd | 104,240 | $6.48M | 0.23% | +16,730+19.1% | Added |
| UBS Asset Management Americas Inc | 104,585 | $6.50M | 0.00% | +15,148+16.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 106,209 | $6.60M | 0.01% | +84,272+384.2% | Added |
| Grace & White Inc | 109,950 | $6.84M | 1.21% | −4,500−3.9% | Reduced |
| Barclays PLC | 112,679 | $7.01M | 0.00% | +43,024+61.8% | Added |
| Tyro Capital Management LLC | 119,133 | $7.41M | 1.88% | +119,133 | New |
| American Century Companies Inc | 123,171 | $7.66M | 0.00% | +3,935+3.3% | Added |
| First Sabrepoint Capital Management LP | 125,000 | $7.77M | 3.18% | +125,000 | New |
| Silvercrest Asset Management Group LLC | 125,924 | $7.83M | 0.06% | +125,924 | New |
| Rhumbline Advisers | 127,703 | $7.94M | 0.01% | +1,246+1.0% | Added |
| Toronto Dominion Bank | 129,863 | $8.07M | 0.02% | +111,736+616.4% | Added |
| Citadel Advisors LLC | 139,223 | $8.66M | 0.01% | +107,904+344.5% | Added |
| Assenagon Asset Management S.A. | 141,434 | $8.79M | 0.01% | +52,214+58.5% | Added |
| Allspring Global Investments Holdings, LLC | 158,256 | $10.0M | 0.02% | +142,906+931.0% | Added |
| Redwood Grove Capital, LLC | 162,358 | $10.1M | 3.26% | +162,358 | New |
| SG Capital Management LLC | 165,185 | $10.3M | 0.85% | +165,185 | New |
| Wells Fargo & Company | 171,602 | $10.7M | 0.00% | +90,201+110.8% | Added |
| Federated Hermes, Inc. | 172,106 | $10.7M | 0.02% | +172,106 | New |
| AQR Capital Management LLC | 178,782 | $11.1M | 0.01% | −39,881−18.2% | Reduced |
| G2 Investment Partners Management LLC | 180,941 | $11.3M | 2.77% | +180,941 | New |
| Principal Financial Group Inc | 220,650 | $13.7M | 0.01% | +4,338+2.0% | Added |
| Prudential Financial Inc | 221,486 | $13.8M | 0.02% | +145,968+193.3% | Added |
| Citigroup Inc | 227,504 | $14.1M | 0.01% | +158,550+229.9% | Added |
| Loomis Sayles & Co L P | 231,058 | $14.4M | 0.02% | +231,058 | New |
| Dana Investment Advisors, Inc. | 249,436 | $15.5M | 0.46% | −140,080−36.0% | Reduced |
| Ameriprise Financial Inc | 252,367 | $15.7M | 0.00% | −13,165−5.0% | Reduced |
| Marshall Wace, LLP | 259,852 | $16.2M | 0.02% | +146,376+129.0% | Added |
| MetLife Investment Management | 267,871 | $16.7M | 0.08% | +241,671+922.4% | Added |
| Public Sector Pension Investment Board | 277,351 | $17.2M | 0.05% | +120,174+76.5% | Added |
| Next Century Growth Investors LLC | 280,543 | $17.4M | 1.26% | +280,543 | New |
| Vanguard Fiduciary Trust Co | 292,790 | $18.2M | 0.00% | +292,790 | New |
| JPMorgan Chase & Co | 336,363 | $18.8M | 0.00% | −176,127−34.4% | Reduced |
| Jane Street Group, LLC | 309,703 | $19.3M | 0.02% | +208,149+205.0% | Added |
| Goodman Financial Corp | 311,104 | $19.3M | 3.32% | −246,915−44.2% | Reduced |
| BNP Paribas Arbitrage, SA | 323,876 | $20.1M | 0.01% | −102,685−24.1% | Reduced |
| ION Fund Management Ltd | 349,852 | $21.8M | 3.32% | +349,852 | New |