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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
2026
Q2 		$312K Buy
+3,613
New +$258K ﹤0.01% 769
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

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Magnetar Financial's AMKR Position: Q2 2026 in Review

Magnetar Financial opened a new position in Amkor Technology (AMKR) in Q2 2026: 3,613 shares worth $312K. The stake represents ﹤0.01% of the portfolio and ranks #769 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in AMKR as recently as Q1 2025.

Magnetar Financial first reported a position in AMKR in Q2 2015 and has held it in 14 quarters since. The position peaked at $682K in Q1 2019. 646 funds tracked by Wall St. Rank hold AMKR as of Q2 2026.

  • Magnetar Financial held 3,613 shares of Amkor Technology worth $312K as of Q2 2026.
  • Amkor Technology was a new Magnetar Financial position in Q2 2026.
  • Amkor Technology made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #769 holding.
  • Magnetar Financial first reported a position in Amkor Technology in Q2 2015 and has held it in 14 quarters since.
  • Magnetar Financial's Amkor Technology position peaked at $682K in Q1 2019.
  • 646 funds tracked by Wall St. Rank held Amkor Technology as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.