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Magnetar Financial’s Amkor Technology AMKR Stock Holding History

Magnetar Financial’s Portfolio AMKR Stock Details AMKR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-10,922
Closed -$197K – 884
2025
Q1 		$197K Buy
+10,922
New +$247K ﹤0.01% 672
2024
Q3 		– Sell
-5,311
Closed -$213K – 521
2024
Q2 		$213K Buy
+5,311
New +$176K ﹤0.01% 451
2019
Q2 		– Sell
-79,915
Closed -$682K – 442
2019
Q1 		$682K Buy
79,915
+57,094
+250% +$472K 0.02% 209
2018
Q4 		$150K Buy
22,821
+3,391
+17% +$22.4K ﹤0.01% 254
2018
Q3 		$144K Buy
19,430
+1,409
+8% +$12K ﹤0.01% 483
2018
Q2 		$155K Buy
18,021
+7,736
+75% +$70.6K ﹤0.01% 468
2018
Q1 		$104K Sell
10,285
-5,566
-35% -$57.9K ﹤0.01% 544
2017
Q4 		$159K Buy
15,851
+1,589
+11% +$17K ﹤0.01% 654
2017
Q3 		$150K Buy
+14,262
New +$137K ﹤0.01% 674
2016
Q2 		– Sell
-59,693
Closed -$352K – 364
2016
Q1 		$352K Sell
59,693
-3,594
-6% -$19.5K 0.01% 272
2015
Q4 		$385K Sell
63,287
-39,784
-39% -$241K ﹤0.01% 241
2015
Q3 		$463K Buy
103,071
+32,282
+46% +$159K 0.01% 224
2015
Q2 		$423K Buy
+70,789
New +$510K 0.01% 328

Other funds holding AMKR

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
SIM
SW Investment Management Telluride, Colorado $451M AUM 79.06% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

Magnetar Financial's AMKR Position: Q2 2025 in Review

Magnetar Financial sold out of Amkor Technology (AMKR) in Q2 2025, closing a stake of 10,922 shares — an estimated $197K sold.

Magnetar Financial first reported a position in AMKR in Q2 2015 and held it in 13 quarters. The position peaked at $682K in Q1 2019. 348 funds tracked by Wall St. Rank hold AMKR as of Q2 2025.

  • Magnetar Financial reported no remaining Amkor Technology position as of Q2 2025 after selling out during the quarter.
  • Magnetar Financial sold 10,922 Amkor Technology shares in Q2 2025, an estimated $197K.
  • Magnetar Financial first reported a position in Amkor Technology in Q2 2015 and held it in 13 quarters.
  • Magnetar Financial's Amkor Technology position peaked at $682K in Q1 2019.
  • 348 funds tracked by Wall St. Rank held Amkor Technology as of Q2 2025.

Based on Magnetar Financial's 13F filing for Q2 2025, filed 12 Aug 2025.