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Amkor Technology
AMKR

Overview Fund Activity

342 hedge funds and large institutions have $2.37B invested in Amkor Technology in 2025 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 138 increasing their positions, 118 reducing their positions, and 50 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
342
Holders Change
-1
Holders Change %
-0.29%
% of All Funds
4.59%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
54
Increased
138
Reduced
118
Closed
50
Calls
$21.5M
Puts
$230M
Net Calls
-$209M
Net Calls Change
-$97.3M

Top Buyers

1
BlackRock
BlackRock
New York
+$78.5M
2
EARNEST Partners
EARNEST Partners
Georgia
+$43.9M
3
GAM
Gotham Asset Management
New York
+$24.9M
4
AQR Capital Management
AQR Capital Management
Connecticut
+$20.7M
5
Millennium Management
Millennium Management
New York
+$19.6M

Top Sellers

1
AllianceBernstein
AllianceBernstein
Tennessee
-$62.1M
2
Vanguard Group
Vanguard Group
Pennsylvania
-$19.6M
3
Invesco
Invesco
Georgia
-$17.6M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$11.2M
5
HF
HRT Financial
New York
-$10.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
Group One Trading
126
Group One Trading
Illinois
$1.03M -$3.42M -162,820 -77%
MFS
127
Mirabella Financial Services
United Kingdom
$1.01M +$1.01M +48,223 New
State Board of Administration of Florida Retirement System
128
State Board of Administration of Florida Retirement System
Florida
$999K -$62.6K -2,980 -6%
KBC Group
129
KBC Group
Belgium
$969K -$533K -25,392 -35%
VRS
130
Virginia Retirement Systems
Virginia
$968K -$111K -5,300 -10%
PFSRSONJ
131
Police & Firemen's Retirement System of New Jersey
New Jersey
$912K +$50.5K +2,407 +6%
State of Tennessee, Department of Treasury
132
State of Tennessee, Department of Treasury
Tennessee
$905K – – –
IFU
133
iSAM Funds (UK)
United Kingdom
$863K +$863K +41,095 New
Wealth Enhancement Advisory Services
134
Wealth Enhancement Advisory Services
Minnesota
$860K +$394K +17,713 +84%
SDIC
135
South Dakota Investment Council
South Dakota
$852K +$223K +10,603 +35%
New York State Teachers Retirement System (NYSTRS)
136
New York State Teachers Retirement System (NYSTRS)
New York
$836K – – –
YCM
137
Yousif Capital Management
Michigan
$795K -$13.3K -632 -2%
VPIM
138
Vanguard Personalized Indexing Management
California
$781K +$209K +9,935 +36%
New York State Common Retirement Fund
139
New York State Common Retirement Fund
New York
$772K – – –
Comerica Bank
140
Comerica Bank
Texas
$766K -$1.66K -79 -0.2%
ASRS
141
Arizona State Retirement System
Arizona
$757K +$88.8K +4,230 +13%
TRSOTSOK
142
Teachers Retirement System of the State of Kentucky
Kentucky
$720K – – –
HDIM
143
Hanson & Doremus Investment Management
Vermont
$696K -$18.6K -885 -3%
Creative Planning
144
Creative Planning
Kansas
$693K -$5.08K -242 -0.7%
EI
145
Ethic Inc
New York
$690K +$239K +11,304 +53%
LSERS
146
Louisiana State Employees Retirement System
Louisiana
$672K +$4.2K +200 +0.6%
QCG
147
Quadrant Capital Group
Ohio
$661K +$642K +30,605 +3,482%
Zurich Cantonal Bank
148
Zurich Cantonal Bank
Switzerland
$639K – – –
BC
149
Bridgefront Capital
Texas
$639K +$639K +30,435 New
COPPSERS
150
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$613K +$43.7K +2,080 +8%
4 5
6
7 8