UCTT
Ultra Clean Holdings, Inc. · Technology · Semiconductors
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +3.9% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 248.52K | $20.01M | n/a | n/a |
| Q2 2026 | 115 | +14 | 32.54M | $4.57B | +19 | −7 |
| Q1 2026 | 106 | +16 | 29.22M | $1.81B | +22 | −6 |
| Q4 2025 | 90 | 0 | 29.71M | $752.71M | n/a | n/a |
| Q3 2025 | 16 | +1 | 18.11M | $493.41M | +1 | n/a |
| Q2 2025 | 12 | 0 | 15.83M | $357.31M | n/a | n/a |
| Q1 2025 | 9 | -2 | 3.81M | $81.54M | n/a | −2 |
| Q4 2024 | 11 | -2 | 4.01M | $144.10M | n/a | −2 |
| Q3 2024 | 12 | +3 | 2.20M | $88.03M | +5 | −2 |
| Q2 2024 | 9 | n/a | 2.17M | $106.44M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 6.78M | n/a | $153.13M | 0.0% | n/c | 1 | SEC ↗ ×15 |
| 2 | The Vanguard Group ✦ (passive) | 4.63M | n/a | $104.50M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 1.74M | -1.8% | $39.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.12M | +4.1% | $25.35M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 5 | D. E. Shaw & Co. ✦ | 864.26K | +55.5% | $19.51M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 6 | Renaissance Technologies ✦ | 257.20K | +330.1% | $5.81M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 202.25K | +1.7% | $4.56M | 0.0% | ▲ Add | 5 | SEC ↗ ×4 |
| 8 | Millennium Management ✦ | 81.99K | +354.9% | $1.85M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 81.24K | +110.0% | $1.83M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 10 | T. Rowe Price ✦ | 38.30K | -49.1% | $865,000 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 11 | Marshall Wace ✦ | 19.73K | +37.4% | $445,260 | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 12 | Fidelity (FMR) ✦ | 10.70K | n/a | $241,436 | 0.0% | n/c | 1 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 327 holders, 44.65M shares, $2.68B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.