United Microelectronic
239 hedge funds and large institutions have $1.16B invested in United Microelectronic in 2025 Q2 according to their latest regulatory filings, with 47 funds opening new positions, 85 increasing their positions, 72 reducing their positions, and 36 closing their positions.
31% more first-time investments, than exits
New positions opened: 47 | Existing positions closed: 36
18% more repeat investments, than reductions
Existing positions increased: 85 | Existing positions reduced: 72
2% more funds holding
Funds holding: 234 → 239 (+5)
5% more capital invested
Capital invested by funds: $1.11B → $1.16B (+$52.6M)
0.15% less ownership
Funds ownership: 6.17% → 6.02% (-0.15%)
81% less call options, than puts
Call options by funds: $1.6M | Put options by funds: $8.51M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
+$28.3M |
| 2 |
MRCP
Maple Rock Capital Partners
Toronto,
Ontario, Canada
|
+$23.3M |
| 3 |
Rafferty Asset Management
New York
|
+$21M |
| 4 |
Barclays
London,
United Kingdom
|
+$11.8M |
| 5 |
BlackRock
New York
|
+$11.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$58.1M |
| 2 |
Citigroup
New York
|
-$17.1M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$14.9M |
| 4 |
Nomura Holdings
Tokyo,
Japan
|
-$11M |
| 5 |
LP
LMR Partners
London,
United Kingdom
|
-$7.15M |
UMC Hedge Fund Activity: Q2 2025 in Review
239 of the 7,613 institutional investors tracked by Wall St. Rank reported a position in United Microelectronic (UMC) for Q2 2025, worth a combined $1.16B — up 4.8% from $1.11B a quarter earlier.
Buyers outnumbered sellers: 47 funds opened new UMC positions and 36 closed out — a net gain of 11 holders — while 85 added to existing stakes and 72 trimmed.
The largest buyer was Morgan Stanley, adding an estimated $28.3M. The largest seller was Millennium Management, cutting an estimated $58.1M.
- 239 institutional investors held United Microelectronic (UMC) as of Q2 2025, up from 234 in Q1 2025.
- Funds reported $1.16B of United Microelectronic stock for Q2 2025, up 4.8% quarter-over-quarter.
- 47 funds opened new United Microelectronic positions in Q2 2025 and 36 closed out, a net change of +11 holders.
- The largest United Microelectronic buyer in Q2 2025 was Morgan Stanley, an estimated $28.3M added.
- The largest United Microelectronic seller in Q2 2025 was Millennium Management, an estimated $58.1M sold.
Based on aggregated 13F filings for Q2 2025.