Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in UCTT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.9M | $986.7M | +1.3% | 15.437% | 0.01% |
| 2 | Invesco Ltd. | 3.1M | $445.6M | +88.3% | 6.971% | 0.04% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $393.2M | -1.6% | 6.151% | 0.02% |
| 4 | Capital World Investors | 2.6M | $367.9M | β | 5.756% | 0.04% |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2.2M | $313.1M | -0.4% | 4.899% | 0.02% |
| 6 | TORONTO DOMINION BANK | 2.1M | $302.0M | -0.5% | 4.725% | 0.35% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $272.2M | -0.4% | 4.258% | 0.01% |
| 8 | STATE STREET CORP | 1.8M | $257.0M | -1.9% | 4.020% | 0.00% |
| 9 | Boston Partners | 1.4M | $191.9M | -7.4% | 3.034% | 0.17% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $187.9M | +15.5% | 2.939% | 0.01% |
| 11 | DRIEHAUS CAPITAL MANAGEMENT LLC | 1.3M | $186.7M | +23.2% | 2.920% | 1.08% |
| 12 | UBS Group AG | 1.0M | $142.8M | -5.4% | 2.235% | 0.02% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 949K | $135.3M | -6.2% | 2.118% | 0.02% |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 740K | $105.5M | -12.0% | 1.651% | 0.01% |
| 15 | FRONTIER CAPITAL MANAGEMENT CO LLC | 668K | $95.2M | -62.6% | 1.489% | 0.89% |
| 16 | ROYCE & ASSOCIATES LP | 666K | $95.0M | -12.3% | 1.487% | 0.77% |
| 17 | OBERWEIS ASSET MANAGEMENT INC/ | 647K | $92.3M | +1.1% | 1.444% | 1.91% |
| 18 | D. E. Shaw & Co., Inc. | 647K | $92.2M | -45.4% | 1.442% | 0.04% |
| 19 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 624K | $89.0M | +51.2% | 1.392% | 0.13% |
| 20 | TWO SIGMA INVESTMENTS, LP | 610K | $87.0M | +4.9% | 1.360% | 0.06% |
| 21 | PARADIGM CAPITAL MANAGEMENT INC/NY | 608K | $86.7M | 0.0% | 1.357% | 2.36% |
| 22 | MORGAN STANLEY | 549K | $78.3M | -39.8% | 1.225% | 0.00% |
| 23 | FULLER & THALER ASSET MANAGEMENT, INC. | 493K | $70.2M | +3.7% | 1.099% | 0.19% |
| 24 | NORTHERN TRUST CORP | 492K | $70.1M | +7.3% | 1.096% | 0.01% |
| 25 | BANK OF AMERICA CORP /DE/ | 425K | $60.6M | -6.3% | 0.949% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in UCTT β a direct measure of their conviction.
Filings activity in UCTT during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 439 | +33% | 114.99% | +1.88 pp | $7.17B | +137% |
| Q1 2026 | 330 | +41% | 113.11% | +18.49 pp | $3.02B | +183% |
| Q4 2025 | 234 | 0.4% | 94.62% | +0.58 pp | $1.07B | 6.3% |
| Q3 2025 | 235 | +4.9% | 94.04% | 0.08 pp | $1.14B | +22% |
| Q2 2025 | 224 | +0.4% | 94.12% | +0.42 pp | $932M | +6.8% |
| Q1 2025 | 223 | 1.8% | 93.70% | +1.52 pp | $873M | 39% |
| Q4 2024 | 227 | 7.0% | 92.18% | +1.48 pp | $1.43B | 8.6% |
| Q3 2024 | 244 | β | 90.70% | β | $1.57B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying UCTT stock.
Based on Q2 2026 13F filings, institutional ownership of Ultra Clean Holdings, Inc. stands at 115.0%, held across 439 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of UCTT, with approximately 6,919,992 shares worth $0.99B as of Q2 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of UCTT, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for UCTT is 82 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
137 institutions opened new positions in UCTT during Q2 2026, while 32 fully exited. 263 added to existing positions and 26 trimmed.
UCTT institutional ownership rose by 1.88 percentage points quarter-over-quarter, with a net change of +109 holders.
The top 10 institutions account for 51.8% of all reported 13F value in UCTT, and the top 25 account for 72.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Ultra Clean Holdings, Inc. (UCTT) Institutional Ownership