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 |
|---|---|---|---|---|---|
| UBS Group AG | 351,296 | $21.8M | 0.00% | +118,851+51.1% | Added |
| Russell Investments Group, Ltd. | 359,945 | $22.4M | 0.02% | +295,264+456.5% | Added |
| Nomura Asset Management International Inc. | 412,699 | $25.7M | 0.04% | +412,699 | New |
| Divisar Capital Management LLC | 420,049 | $26.1M | 6.66% | −529,279−55.8% | Reduced |
| First Eagle Investment Management, LLC | 434,100 | $27.0M | 0.05% | +23,531+5.7% | Added |
| Pinnacle Associates Ltd | 441,659 | $27.5M | 0.35% | −20,467−4.4% | Reduced |
| Bank of New York Mellon Corp | 443,653 | $27.6M | 0.01% | −191,319−30.1% | Reduced |
| Bank of America Corp | 454,020 | $28.2M | 0.00% | +378,648+502.4% | Added |
| Northern Trust Corp | 458,142 | $28.5M | 0.00% | −5,118−1.1% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 475,073 | $29.5M | 0.10% | +461,568+3,417.8% | Added |
| Goldman Sachs Group Inc | 503,328 | $31.3M | 0.00% | −54,848−9.8% | Reduced |
| SG Americas Securities, LLC | 565,569 | $35.2M | 0.04% | +439,526+348.7% | Added |
| Two Sigma Investments, LP | 581,131 | $36.1M | 0.03% | +581,131 | New |
| Cooper Creek Partners Management LLC | 586,773 | $36.5M | 1.75% | +586,773 | New |
| Paradigm Capital Management Inc | 608,200 | $37.8M | 1.45% | 00.0% | Unchanged |
| Oberweis Asset Management Inc | 640,476 | $39.8M | 1.18% | +11,976+1.9% | Added |
| Millennium Management LLC | 685,436 | $42.6M | 0.03% | +125,481+22.4% | Added |
| Royce & Associates LP | 759,497 | $47.2M | 0.47% | −339,196−30.9% | Reduced |
| Charles Schwab Investment Management Inc | 840,456 | $52.3M | 0.01% | +19,368+2.4% | Added |
| Morgan Stanley | 911,700 | $56.7M | 0.00% | +17,277+1.9% | Added |
| Dimensional Fund Advisors LP | 1,011,778 | $62.9M | 0.01% | −513,079−33.6% | Reduced |
| Driehaus Capital Management LLC | 1,062,376 | $66.1M | 0.49% | +608,746+134.2% | Added |
| Geode Capital Management, LLC | 1,140,780 | $70.9M | 0.00% | +51,351+4.7% | Added |
| D. E. Shaw & Co., Inc. | 1,183,257 | $73.6M | 0.06% | +231,103+24.3% | Added |
| Boston Partners | 1,468,878 | $91.4M | 0.10% | +1,468,878 | New |
| Invesco Ltd. | 1,659,949 | $103.2M | 0.01% | −1,739,885−51.2% | Reduced |
| Frontier Capital Management Co LLC | 1,787,451 | $111.1M | 1.14% | −1,722,388−49.1% | Reduced |
| State Street Corp | 1,837,824 | $114.3M | 0.00% | −14,658−0.8% | Reduced |
| Vanguard Capital Management LLC | 1,916,501 | $119.2M | 0.00% | +1,916,501 | New |
| Vanguard Portfolio Management LLC | 2,802,250 | $174.2M | 0.01% | +2,802,250 | New |
| BlackRock, Inc. | 6,832,619 | $424.9M | 0.01% | +113,167+1.7% | Added |
| Shapiro Capital Management LLC | 0 | $0 | 0.00% | −1,278,492−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −184,783−100.0% | Sold out |
| Wedge Capital Management L L P | 0 | $0 | 0.00% | −111,441−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −106,400−100.0% | Sold out |
| Penn Capital Management Co Inc | 0 | $0 | 0.00% | −69,813−100.0% | Sold out |
| Optimize Financial Inc | 0 | $0 | 0.00% | −57,359−100.0% | Sold out |
| Romano Brothers and Company | 0 | $0 | 0.00% | −29,250−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −26,429−100.0% | Sold out |
| Amundi | 0 | $0 | 0.00% | −15,343−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −14,266−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −12,768−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −9,137−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −8,400−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −4,104−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −629−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | −72−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Financial Network Wealth Advisors LLC | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |