UCTT Institutional Ownership
Who owns Ultra Clean Holdings, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 439 funds reported holding UCTT at Jun 30, 2026, together owning 97.5% of the company.
- ▲236 buying vs 194 selling
- ▲Held by funds +3.6 pts
- ▲Funds holding +107
- ●Superinvestors: 2 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 439 | 332 | +32.2% |
| In funds' top 10 | 10 | 4 | +150.0% |
| 13F shares | 46.8M | 45M | +3.9% |
| Held by funds | 97.5% | 93.9% | +3.6 pts |
| New positions | 142 | 111 | +27.9% |
| Increased | 94 | 92 | +2.2% |
| Reduced | 162 | 85 | +90.6% |
| Sold out | 32 | 22 | +45.5% |
| Calls (shares) | 54K | 59K | −8.4% |
| Puts (shares) | 52K | 14K | +278.8% |
| Put/call ratio | 0.97 | 0.23 | +313.5% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in UCTT
All superinvestors →
Who owns UCTT
share of fund held shares- Index and passive funds43.9%
- Active managers and hedge funds44.8%
- Banks and brokers9.6%
- Pensions, insurers and other1.7%
The top 10 holders own 51.4% of all UCTT shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
116 funds changed their position- Assenagon Asset Management S.A.Trimmed−318K sh
- Pinnacle Associates LtdTrimmed−71K sh
- Bridge City Capital, LLCAdded+47K sh
- VMS Asset Management LimitedNew+45K sh
- Concurrent Investment Advisors, LLCTrimmed−39K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 14.43% | 6.9M | $987M | +87K |
| 2 | Invesco Ltd. | 6.52% | 3.1M | $446M | +1.5M |
| 3 | Vanguard Portfolio Management LLC | 5.75% | 2.8M | $393M | −45K |
| 4 | Capital World Investors | 5.38% | 2.6M | $368M | +2.6M |
| 5 | Vanguard Capital Management LLC | 3.98% | 1.9M | $272M | −7,475 |
| 6 | State Street Corp | 3.76% | 1.8M | $257M | −36K |
| 7 | Boston Partners | 2.84% | 1.4M | $192M | −109K |
| 8 | Geode Capital Management, LLC | 2.75% | 1.3M | $188M | +177K |
| 9 | Driehaus Capital Management LLC | 2.73% | 1.3M | $187M | +247K |
| 10 | Dimensional Fund Advisors LP | 1.98% | 949K | $135M | −62K |
- Capital World Investors+2.6M sh+$368M
- Invesco Ltd.+1.5M sh+$209M
- Assenagon Asset Management S.A.+415K sh+$59.2M
- Franklin Resources Inc+340K sh+$48.4M
- Alliancebernstein L.P.+737K sh+$45.8M
- T. Rowe Price Investment Management, Inc.+284K sh+$40.4M
- First Eagle Investment Management, LLC+262K sh+$37.3M
- Driehaus Capital Management LLC+247K sh+$35.2M
- Frontier Capital Management Co LLC−1.1M sh−$160M
- SG Americas Securities, LLC−564K sh−$80.4M
- D. E. Shaw & Co., Inc.−563K sh−$80.3M
- Morgan Stanley−362K sh−$51.7M
- Jane Street Group, LLC−308K sh−$43.9M
- Millennium Management LLC−297K sh−$42.4M
- Divisar Capital Management LLC−264K sh−$37.7M
- Cooper Creek Partners Management LLC−587K sh−$36.5M
UCTT institutional ownership FAQ
Who owns the most UCTT stock?
In Q2 2026 13F filings the largest holder of UCTT was BlackRock, Inc., followed by Invesco Ltd. and Vanguard Portfolio Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of UCTT is owned by institutions?
Funds that file 13F reports held 97.5% of UCTT's shares at Jun 30, 2026, compared with 93.9% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying UCTT?
In Q2 2026, 236 funds bought UCTT (142 of them new positions) and 194 sold (32 sold out completely). Among well known investors, 2 added and 2 cut. Our fund sentiment for UCTT is bullish.
What is UCTT's institutional put/call ratio?
Funds reported $7.4M of UCTT puts against $7.6M of calls, a put/call ratio of 0.97 (0.23 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this UCTT ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.