Ultra Clean Holdings Inc (UCTT)
Technology
Semiconductor Equipment & Materials
83.30 $
+0.1%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Ultra Clean Holdings Inc (UCTT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.2% of the shares are freely tradable; institutional investors hold 102.9%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
102.9%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
2.0%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
98.2%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
10.7%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
45Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 15.24 | 6,832,619 | +1.7 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 6.25 | 2,802,250 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.28 | 1,916,501 | +0.0 | 03/31/2026 |
| State Street Corp | 4.10 | 1,837,824 | -0.8 | 03/31/2026 |
| Frontier Capital Management CO Inc | 3.99 | 1,787,451 | -49.1 | 03/31/2026 |
| Amvescap Plc. | 3.70 | 1,659,949 | -51.2 | 03/31/2026 |
| Boston Partners Global Investors, Inc | 3.28 | 1,468,878 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 2,731,820 | +0.0 | 07/30/2026 |
| American Funds SMALLCAP World A | 5.31 | 2,381,374 | +0.0 | 06/30/2026 |
| Invesco Small Cap Value A | 3.20 | 1,433,961 | +0.0 | 05/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.