United Microelectronic
239 hedge funds and large institutions have $1B invested in United Microelectronic in 2025 Q3 according to their latest regulatory filings, with 41 funds opening new positions, 80 increasing their positions, 88 reducing their positions, and 38 closing their positions.
8% more first-time investments, than exits
New positions opened: 41 | Existing positions closed: 38
0% more funds holding
Funds holding: 238 → 239 (+1)
0.74% less ownership
Funds ownership: 6.02% → 5.28% (-0.74%)
9% less repeat investments, than reductions
Existing positions increased: 80 | Existing positions reduced: 88
13% less capital invested
Capital invested by funds: $1.16B → $1B (-$154M)
69% less call options, than puts
Call options by funds: $3.83M | Put options by funds: $12.2M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Two Sigma Investments
New York
|
+$22.4M |
| 2 |
Marshall Wace
London,
United Kingdom
|
+$19.9M |
| 3 |
Two Sigma Advisers
New York
|
+$11.3M |
| 4 |
Man Group
London,
United Kingdom
|
+$3.29M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
+$2.44M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$93.1M |
| 2 |
MRCP
Maple Rock Capital Partners
Toronto,
Ontario, Canada
|
-$24M |
| 3 |
Rafferty Asset Management
New York
|
-$15.5M |
| 4 |
KC
Kadensa Capital
Central,
Hong Kong
|
-$10.2M |
| 5 |
Citigroup
New York
|
-$10.2M |
UMC Hedge Fund Activity: Q3 2025 in Review
239 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in United Microelectronic (UMC) for Q3 2025, worth a combined $1B — down 13% from $1.16B a quarter earlier.
Buyers outnumbered sellers: 41 funds opened new UMC positions and 38 closed out — a net gain of 3 holders — while 80 added to existing stakes and 88 trimmed.
The largest buyer was Two Sigma Investments, adding an estimated $22.4M. The largest seller was UBS Group, cutting an estimated $93.1M.
- 239 institutional investors held United Microelectronic (UMC) as of Q3 2025, up from 238 in Q2 2025.
- Funds reported $1B of United Microelectronic stock for Q3 2025, down 13% quarter-over-quarter.
- 41 funds opened new United Microelectronic positions in Q3 2025 and 38 closed out, a net change of +3 holders.
- The largest United Microelectronic buyer in Q3 2025 was Two Sigma Investments, an estimated $22.4M added.
- The largest United Microelectronic seller in Q3 2025 was UBS Group, an estimated $93.1M sold.
Based on aggregated 13F filings for Q3 2025.