Massachusetts Financial Services
AMKR icon

Massachusetts Financial Services’s Amkor Technology AMKR Stock Holding History

Massachusetts Financial Services’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 		$31.1M Sell
361,075
-5,718
-2% -$408K 0.01% 584
2026
Q1 		$16.5M Sell
366,793
-15,548
-4% -$745K 0.01% 673
2025
Q4 		$15.1M Sell
382,341
-2,330
-0.6% -$82.9K ﹤0.01% 678
2025
Q3 		$10.9M Buy
384,671
+67,578
+21% +$1.63M ﹤0.01% 684
2025
Q2 		$6.66M Buy
317,093
+70,406
+29% +$1.3M ﹤0.01% 698
2025
Q1 		$4.46M Buy
246,687
+63,615
+35% +$1.44M ﹤0.01% 701
2024
Q4 		$4.7M Buy
183,072
+22,081
+14% +$607K ﹤0.01% 699
2024
Q3 		$4.93M Buy
160,991
+8,598
+6% +$293K ﹤0.01% 673
2024
Q2 		$6.1M Buy
152,393
+14,012
+10% +$464K ﹤0.01% 668
2024
Q1 		$4.46M Buy
138,381
+2,932
+2% +$93K ﹤0.01% 676
2023
Q4 		$4.51M Buy
135,449
+2,173
+2% +$57.1K ﹤0.01% 667
2023
Q3 		$3.01M Buy
133,276
+849
+0.6% +$22.4K ﹤0.01% 688
2023
Q2 		$3.94M Buy
132,427
+6,417
+5% +$156K ﹤0.01% 658
2023
Q1 		$3.28M Sell
126,010
-2,437
-2% -$66.6K ﹤0.01% 672
2022
Q4 		$3.08M Sell
128,447
-129,702
-50% -$3.01M ﹤0.01% 688
2022
Q3 		$4.4M Buy
258,149
+22,345
+9% +$430K ﹤0.01% 660
2022
Q2 		$4M Buy
235,804
+59,780
+34% +$1.14M ﹤0.01% 670
2022
Q1 		$3.82M Buy
176,024
+3,168
+2% +$71.7K ﹤0.01% 695
2021
Q4 		$4.29M Sell
172,856
-3,360
-2% -$78.2K ﹤0.01% 707
2021
Q3 		$4.4M Sell
176,216
-48,813
-22% -$1.25M ﹤0.01% 718
2021
Q2 		$5.33M Sell
225,029
-2,318
-1% -$51.6K ﹤0.01% 707
2021
Q1 		$5.39M Sell
227,347
-43,966
-16% -$900K ﹤0.01% 689
2020
Q4 		$4.09M Sell
271,313
-2,709
-1% -$36.9K ﹤0.01% 683
2020
Q3 		$3.07M Sell
274,022
-10,739
-4% -$133K ﹤0.01% 683
2020
Q2 		$3.5M Sell
284,761
-59,722
-17% -$617K ﹤0.01% 650
2020
Q1 		$2.68M Buy
344,483
+52,574
+18% +$571K ﹤0.01% 656
2019
Q4 		$3.79M Buy
291,909
+19,584
+7% +$234K ﹤0.01% 660
2019
Q3 		$2.48M Buy
272,325
+30,388
+13% +$261K ﹤0.01% 702
2019
Q2 		$1.8M Buy
241,937
+129,023
+114% +$1.01M ﹤0.01% 744
2019
Q1 		$964K Buy
112,914
+4,177
+4% +$34.6K ﹤0.01% 780
2018
Q4 		$713K Buy
108,737
+8,463
+8% +$55.8K ﹤0.01% 796
2018
Q3 		$741K Sell
100,274
-233
-0.2% -$1.98K ﹤0.01% 804
2018
Q2 		$864K Buy
100,507
+13,765
+16% +$126K ﹤0.01% 786
2018
Q1 		$879K Buy
86,742
+1,336
+2% +$13.9K ﹤0.01% 775
2017
Q4 		$858K Buy
85,406
+11,984
+16% +$128K ﹤0.01% 784
2017
Q3 		$775K Sell
73,422
-1,094
-1% -$10.5K ﹤0.01% 779
2017
Q2 		$728K Buy
74,516
+11,954
+19% +$135K ﹤0.01% 792
2017
Q1 		$725K Buy
62,562
+743
+1% +$7.67K ﹤0.01% 785
2016
Q4 		$652K Buy
+61,819
New +$659K ﹤0.01% 801
2015
Q2 		– Sell
-22,227
Closed -$196K – 881
2015
Q1 		$196K Sell
22,227
-1,603
-7% -$13K ﹤0.01% 872
2014
Q4 		$169K Buy
+23,830
New +$165K ﹤0.01% 875

Other funds holding AMKR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
TG
TCW Group Los Angeles, California $14.9B AUM 46.29% 1-Year Est. Return
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return
SG Americas Securities
SG Americas Securities New York $179B AUM 65.34% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return

Massachusetts Financial Services's AMKR Position: Q2 2026 in Review

Massachusetts Financial Services reduced its Amkor Technology (AMKR) stake by 1.6% in Q2 2026, selling an estimated $408K and leaving 361,075 shares worth $31.1M. The position accounts for 0.01% of the portfolio, ranked #584.

Massachusetts Financial Services first reported a position in AMKR in Q4 2014 and has held it in 41 quarters since. 305 funds tracked by Wall St. Rank hold AMKR as of Q2 2026.

  • Massachusetts Financial Services held 361,075 shares of Amkor Technology worth $31.1M as of Q2 2026.
  • Massachusetts Financial Services sold 5,718 Amkor Technology shares in Q2 2026, an estimated $408K.
  • Amkor Technology made up 0.01% of Massachusetts Financial Services's portfolio in Q2 2026, its #584 holding.
  • Massachusetts Financial Services first reported a position in Amkor Technology in Q4 2014 and has held it in 41 quarters since.
  • 305 funds tracked by Wall St. Rank held Amkor Technology as of Q2 2026.

Based on Massachusetts Financial Services's 13F filing for Q2 2026, filed 3 Aug 2026.