Wellington Management Group
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Wellington Management Group’s Amkor Technology AMKR Stock Holding History

Wellington Management Group’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
Q1 		$13.9M Sell
309,134
-129,952
-30% -$6.23M ﹤0.01% 1152
2025
Q4 		$17.3M Sell
439,086
-220,720
-33% -$7.85M ﹤0.01% 1087
2025
Q3 		$18.7M Buy
659,806
+375,924
+132% +$9.05M ﹤0.01% 1053
2025
Q2 		$5.96M Sell
283,882
-193,110
-40% -$3.56M ﹤0.01% 1347
2025
Q1 		$8.61M Sell
476,992
-1,052,356
-69% -$23.8M ﹤0.01% 1233
2024
Q4 		$39.3M Buy
1,529,348
+395,242
+35% +$10.9M 0.01% 769
2024
Q3 		$34.7M Buy
1,134,106
+951,764
+522% +$32.4M 0.01% 805
2024
Q2 		$7.3M Sell
182,342
-9,546
-5% -$316K ﹤0.01% 1237
2024
Q1 		$6.19M Sell
191,888
-8,945
-4% -$284K ﹤0.01% 1278
2023
Q4 		$6.68M Buy
200,833
+11,452
+6% +$301K ﹤0.01% 1223
2023
Q3 		$4.28M Buy
+189,381
New +$4.99M ﹤0.01% 1313
2022
Q4 		– Sell
-38,444
Closed -$655K – 1986
2022
Q3 		$655K Buy
38,444
+11,653
+43% +$224K ﹤0.01% 1726
2022
Q2 		$454K Hold
26,791
– – ﹤0.01% 1852
2022
Q1 		$582K Buy
+26,791
New +$606K ﹤0.01% 1875
2020
Q4 		– Sell
-47,119
Closed -$528K – 1910
2020
Q3 		$528K Buy
47,119
+18,794
+66% +$233K ﹤0.01% 1689
2020
Q2 		$349K Sell
28,325
-11,420
-29% -$118K ﹤0.01% 1716
2020
Q1 		$310K Buy
39,745
+5,751
+17% +$62.5K ﹤0.01% 1797
2019
Q4 		$442K Buy
33,994
+7,962
+31% +$95K ﹤0.01% 1876
2019
Q3 		$237K Buy
+26,032
New +$223K ﹤0.01% 1974
2018
Q4 		– Sell
-119,566
Closed -$883K – 2039
2018
Q3 		$883K Sell
119,566
-348,129
-74% -$2.96M ﹤0.01% 1908
2018
Q2 		$4.02M Sell
467,695
-12,085
-3% -$110K ﹤0.01% 1554
2018
Q1 		$4.86M Buy
479,780
+126,985
+36% +$1.32M ﹤0.01% 1492
2017
Q4 		$3.55M Sell
352,795
-62,639
-15% -$670K ﹤0.01% 1578
2017
Q3 		$4.38M Sell
415,434
-139,262
-25% -$1.33M ﹤0.01% 1512
2017
Q2 		$5.42M Sell
554,696
-587,794
-51% -$6.66M ﹤0.01% 1401
2017
Q1 		$13.2M Buy
1,142,490
+303,441
+36% +$3.13M ﹤0.01% 1160
2016
Q4 		$8.85M Buy
839,049
+653,639
+353% +$6.96M ﹤0.01% 1230
2016
Q3 		$1.8M Buy
185,410
+18,897
+11% +$151K ﹤0.01% 1672
2016
Q2 		$958K Buy
166,513
+81,739
+96% +$477K ﹤0.01% 1786
2016
Q1 		$499K Buy
+84,774
New +$460K ﹤0.01% 1956
2015
Q4 		– Sell
-142,613
Closed -$640K – 2163
2015
Q3 		$640K Sell
142,613
-142,540
-50% -$701K ﹤0.01% 1918
2015
Q2 		$1.71M Sell
285,153
-15,865
-5% -$114K ﹤0.01% 1716
2015
Q1 		$2.66M Buy
301,018
+90,690
+43% +$737K ﹤0.01% 1618
2014
Q4 		$1.49M Buy
210,328
+58,495
+39% +$405K ﹤0.01% 1763
2014
Q3 		$1.28M Buy
151,833
+63,192
+71% +$624K ﹤0.01% 1774
2014
Q2 		$991K Hold
88,641
– – ﹤0.01% 1812
2014
Q1 		$608K Buy
88,641
+26,900
+44% +$157K ﹤0.01% 1937
2013
Q4 		$379K Buy
61,741
+2,744
+5% +$14.6K ﹤0.01% 2040
2013
Q3 		$253K Hold
58,997
– – ﹤0.01% 2102
2013
Q2 		$248K Buy
+58,997
New +$249K ﹤0.01% 2061

Other funds holding AMKR

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
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $24.3B AUM 34.41% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Wellington Management Group's AMKR Position: Q1 2026 in Review

Wellington Management Group reduced its Amkor Technology (AMKR) stake by 30% in Q1 2026, selling an estimated $6.23M and leaving 309,134 shares worth $13.9M. The position accounts for ﹤0.01% of the portfolio, ranked #1152.

Wellington Management Group first reported a position in AMKR in Q2 2013 and has held it in 40 quarters since. The position peaked at $39.3M in Q4 2024. 527 funds tracked by Wall St. Rank hold AMKR as of Q1 2026.

  • Wellington Management Group held 309,134 shares of Amkor Technology worth $13.9M as of Q1 2026.
  • Wellington Management Group sold 129,952 Amkor Technology shares in Q1 2026, an estimated $6.23M.
  • Amkor Technology made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #1152 holding.
  • Wellington Management Group first reported a position in Amkor Technology in Q2 2013 and has held it in 40 quarters since.
  • Wellington Management Group's Amkor Technology position peaked at $39.3M in Q4 2024.
  • 527 funds tracked by Wall St. Rank held Amkor Technology as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.