Ultra Clean Holdings
UCTT
232 hedge funds and large institutions have $950M invested in Ultra Clean Holdings in 2025 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 90 increasing their positions, 67 reducing their positions, and 38 closing their positions.
34% more repeat investments, than reductions
Existing positions increased: 90 | Existing positions reduced: 67
13% more first-time investments, than exits
New positions opened: 43 | Existing positions closed: 38
1% more funds holding
Funds holding: 229 → 232 (+3)
6% more capital inflows, than outflows
Capital inflows: $102M | Capital outflows: $96.5M
0.68% more ownership
Funds ownership: 92.55% → 93.24% (+0.68%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
27% less call options, than puts
Call options by funds: $2.39M | Put options by funds: $3.26M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Frontier Capital Management
Boston,
Massachusetts
|
+$16.6M |
| 2 |
DCM
Divisar Capital Management
San Francisco,
California
|
+$7.86M |
| 3 |
D.E. Shaw & Co
New York
|
+$6.33M |
| 4 |
Morgan Stanley
New York
|
+$4.81M |
| 5 |
Invesco
Atlanta,
Georgia
|
+$4.76M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Boston Partners
Boston,
Massachusetts
|
-$21.4M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$16.6M |
| 3 |
Liontrust Investment Partners
London,
United Kingdom
|
-$6.75M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
-$4.46M |
| 5 |
Nuveen
Charlotte,
North Carolina
|
-$4.39M |
UCTT Hedge Fund Activity: Q2 2025 in Review
232 of the 7,627 institutional investors tracked by Wall St. Rank reported a position in Ultra Clean Holdings (UCTT) for Q2 2025, worth a combined $950M — up 6.3% from $894M a quarter earlier.
Buyers outnumbered sellers: 43 funds opened new UCTT positions and 38 closed out — a net gain of 5 holders — while 90 added to existing stakes and 67 trimmed.
The largest buyer was Frontier Capital Management, adding an estimated $16.6M. The largest seller was Boston Partners, exiting entirely with an estimated $21.4M sold.
- 232 institutional investors held Ultra Clean Holdings (UCTT) as of Q2 2025, up from 229 in Q1 2025.
- Funds reported $950M of Ultra Clean Holdings stock for Q2 2025, up 6.3% quarter-over-quarter.
- 43 funds opened new Ultra Clean Holdings positions in Q2 2025 and 38 closed out, a net change of +5 holders.
- The largest Ultra Clean Holdings buyer in Q2 2025 was Frontier Capital Management, an estimated $16.6M added.
- The largest Ultra Clean Holdings seller in Q2 2025 was Boston Partners, an estimated $21.4M sold.
Based on aggregated 13F filings for Q2 2025.