Updated
Ultra CleanUCTT · Technology
$41.13+10.56%
Market cap$1.9B
IndustrySemiconductor Equipment & Materials
Ultra Clean (UCTT) Superinvestor holders
17 of the superinvestors we track hold Ultra Clean (UCTT) in their latest 13F filings, $587M in total.
Summary
The largest holder is Mark Donovan (Boston Partners), with $192M, 0.2% of the portfolio.
In their latest quarter: 4 opened a new position, 5 added, 8 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| Mark Donovan Boston Partners |
Trimmed | 1,360,211 | $192M | 0.2% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Trimmed | 619,802 | $88M | 0.1% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Added | 609,851 | $87M | 0.1% | Q2 2026 |
| Chuck Royce Royce Investment Partners |
Trimmed | 625,436 | $51M | 0.5% | Q3 2026 |
| Jean-Marie Eveillard First Eagle Investment Management |
Trimmed | 347,930 | $50M | 0.1% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Added | 210,149 | $30M | 0.0% | Q2 2026 |
| Aziz Hamzaogullari Loomis Sayles & Co |
Trimmed | 203,538 | $29M | 0.0% | Q2 2026 |
| Paul Marshall Marshall Wace |
Trimmed | 144,176 | $21M | 0.0% | Q2 2026 |
| Jim Simons Renaissance Technologies |
New position | 91,900 | $13M | 0.0% | Q2 2026 |
| Alan Howard Brevan Howard |
Added | 68,707 | $10M | 0.1% | Q2 2026 |
| Steve Cohen Point72 Asset Management |
New position | 62,439 | $9M | 0.0% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Added | 44,249 | $6M | 0.0% | Q2 2026 |
| Lee Ainslie Maverick Capital |
Trimmed | 5,035 | $717,941 | 0.0% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Added | 3,706 | $528,439 | 0.0% | Q2 2026 |
| Brandon Haley Holocene Advisors |
New position | 2,911 | $415,079 | 0.0% | Q2 2026 |
| Louis Bacon Moore Capital Management |
New position | 1,485 | $211,746 | 0.0% | Q2 2026 |
| Acadian Acadian Asset Management |
Trimmed | 2,026 | $164,000 | 0.0% | Q3 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 17 |
| Q1 2026 | 16 |
| Q4 2025 | 11 |
| Q3 2025 | 11 |
| Q2 2025 | 10 |
| Q1 2025 | 10 |
| Q4 2024 | 15 |
| Q3 2024 | 17 |
Questions about Ultra Clean
Which superinvestors own Ultra Clean?
17 of the superinvestors we track hold Ultra Clean (UCTT) in their latest 13F filings, $587M in total. Mark Donovan, David Shaw, Two Sigma, Chuck Royce, Jean-Marie Eveillard, Cliff Asness.
Who is the largest superinvestor holder of UCTT?
The largest holder is Mark Donovan (Boston Partners), with $192M, 0.2% of the portfolio.
From Ultra Clean's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.