UCTT
Ultra Clean Holdings, Inc. · Technology · Semiconductors
Momentum inputs (comparable managers):
holder breadth -18.2% ·
share flow -5.0% ·
net new positions -20.0%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| 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 | — | — |
| Q3 2025 | 16 | +1 | 18.11M | $493.41M | +1 | — |
| Q2 2025 | 12 | 0 | 15.83M | $357.31M | — | — |
| Q1 2025 | 9 | -2 | 3.81M | $81.54M | — | −2 |
| Q4 2024 | 11 | -2 | 4.01M | $144.10M | — | −2 |
| Q3 2024 | 12 | +3 | 2.20M | $88.03M | +5 | −2 |
| Q2 2024 | 9 | — | 2.17M | $106.44M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.77M | -2.9% | $37.87M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.08M | +3.6% | $23.10M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 3 | D. E. Shaw & Co. ✦ | 555.72K | +107.7% | $11.90M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 4 | AQR Capital Management ✦ | 198.79K | +16.9% | $4.26M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 5 | T. Rowe Price ✦ | 75.21K | +3.8% | $1.61M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 6 | Renaissance Technologies ✦ | 59.80K | -63.2% | $1.28M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 38.69K | +214.6% | $828,267 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Millennium Management ✦ | 18.02K | -88.9% | $385,851 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | Marshall Wace ✦ | 14.36K | -41.2% | $307,511 | 0.0% | ▼ Trim | 3 | 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
| Fisher Asset Management | $8.11M | was 0.0% |
| Two Sigma Investments | $1.74M | was 0.0% |
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.