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United Microelectronic
UMC

Overview Fund Activity

234 hedge funds and large institutions have $1.16B invested in United Microelectronic in 2025 Q2 according to their latest regulatory filings, with 46 funds opening new positions, 83 increasing their positions, 73 reducing their positions, and 35 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
234
Holders Change
+3
Holders Change %
+1.3%
% of All Funds
3.14%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
46
Increased
83
Reduced
73
Closed
35
Calls
$1.6M
Puts
$8.51M
Net Calls
-$6.91M
Net Calls Change
-$8.38M

Top Buyers

1
Morgan Stanley
Morgan Stanley
New York
$167M
2
MRCP
Maple Rock Capital Partners
Ontario, Canada
$24M
3
Rafferty Asset Management
Rafferty Asset Management
New York
$64.3M
4
Barclays
Barclays
United Kingdom
$40.2M
5
BlackRock
BlackRock
New York
$186M

Top Sellers

1
Millennium Management
Millennium Management
New York
$450K
2
Citigroup
Citigroup
New York
$28.5M
3
Citadel Advisors
Citadel Advisors
Florida
$4.54M
4
Nomura Holdings
Nomura Holdings
Japan
$0
5
Bank of America
Bank of America
North Carolina
$53.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
LSV Asset Management
26
LSV Asset Management
Illinois
$4.33M -$92.6K -12,100 -2%
Baird Financial Group
27
Baird Financial Group
Wisconsin
$4.02M -$121K -15,770 -3%
D.E. Shaw & Co
28
D.E. Shaw & Co
New York
$3.66M -$1.59M -208,459 -30%
Balyasny Asset Management
29
Balyasny Asset Management
Illinois
$3.55M +$558K +72,999 +19%
QCG
30
Quadrant Capital Group
Ohio
$3.04M +$1.85M +241,396 +155%
OSAM
31
O'Shaughnessy Asset Management
Connecticut
$2.95M +$590K +77,183 +25%
Two Sigma Investments
32
Two Sigma Investments
New York
$2.9M -$6.93M -905,816 -71%
VPIM
33
Vanguard Personalized Indexing Management
California
$2.8M +$675K +88,237 +32%
Susquehanna International Group
34
Susquehanna International Group
Pennsylvania
$2.75M -$2.31M -301,660 -46%
GC
35
Guggenheim Capital
Illinois
$2.68M -$149K -19,459 -5%
QCM
36
Quantinno Capital Management
New York
$2.65M +$723K +94,518 +37%
EI
37
Ethic Inc
New York
$2.64M -$192 -25 -0%
LNWWM
38
Laird Norton Wetherby Wealth Management
California
$2.5M +$2.5M +326,804 New
Corient Private Wealth
39
Corient Private Wealth
Florida
$2.45M +$1.12M +145,757 +84%
Arrowstreet Capital
40
Arrowstreet Capital
Massachusetts
$2.43M +$2.43M +317,271 New
Acadian Asset Management
41
Acadian Asset Management
Massachusetts
$2.41M +$1.17M +152,601 +94%
US Bancorp
42
US Bancorp
Minnesota
$2.04M +$37.4K +4,887 +2%
Cerity Partners
43
Cerity Partners
New York
$1.86M -$623K -81,345 -25%
AAM
44
Advisors Asset Management
Colorado
$1.8M +$168K +22,001 +10%
S
45
SignatureFD
Georgia
$1.78M +$106K +13,870 +6%
Fidelity Investments
46
Fidelity Investments
Massachusetts
$1.69M -$2.53M -331,103 -60%
VT
47
Vise Technologies
New York
$1.47M +$1.47M +192,714 New
WFI
48
West Family Investments
California
$1.44M +$390K +50,925 +37%
Mariner
49
Mariner
Kansas
$1.43M +$651K +85,154 +84%
BP
50
Ballentine Partners
Massachusetts
$1.4M +$195K +25,431 +16%
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