Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership1,793,537 shares
Latest Disclosed Value $ 80,762,846
First Trust Advisors Lp reports 34.12% decrease in ownership of AMKR / Amkor Technology, Inc.

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 1,793,537 shares of Amkor Technology, Inc. (MX:AMKR) valued at $80,762,846 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,722,310 shares of Amkor Technology, Inc.. This represents a change in shares of -34.12% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,793,537 -928,773 -34.12 80,763 -24.86 0.0576
2026-02-13 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 2,722,310 740,701 37.38 107,477 90.98 0.0781
2025-11-12 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,981,609 296,057 17.56 56,277 59.06 0.0418
2025-08-13 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,685,552 398,927 31.01 35,380 52.26 0.0285
2025-05-14 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,286,625 -3,492,165 -73.08 23,237 -81.07 0.0206
2025-02-13 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 4,778,790 350,809 7.92 122,767 -9.40 0.1082
2024-11-13 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 4,427,981 1,187,221 36.63 135,496 4.47 0.1291
2024-08-13 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 3,240,760 3,299 0.10 129,695 24.26 0.1322
2024-05-13 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 3,237,461 811,015 33.42 104,376 29.29 0.1059
2024-02-13 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 2,426,446 -52,925 -2.13 80,728 44.07 0.0881
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 2,479,371 235,103 10.48 56,034 -16.08 0.0664
2023-08-14 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 2,244,268 115,053 5.40 66,767 20.51 0.0759
2023-05-15 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 2,129,215 1,401,109 192.43 55,402 217.33 0.0640
2023-02-09 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 728,106 -129,114 -15.06 17,460 19.45 0.0208
2022-11-14 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 857,220 19,933 2.38 14,616 2.99 0.0190
2022-08-12 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 837,287 145,251 20.99 14,192 -5.58 0.0175
2022-05-13 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 692,036 60,881 9.65 15,031 -3.93 0.0154
2022-02-08 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 631,155 90,557 16.75 15,646 16.00 0.0152
2021-11-15 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 540,598 122,290 29.23 13,488 36.23 0.0145
2021-10-12 2021-06-30 13F/A-1 AMKOR TECHNOLOGY COM 031652100 418,308 -130,363 -23.76 9,901 -23.89 0.0107
2021-08-16 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 418,308 -130,363 9,901 0.0102
2021-05-14 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 548,671 325,779 146.16 13,009 287.06 0.0158
2021-02-02 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 222,892 88,527 65.89 3,361 123.32 0.0045
2020-11-05 2020-09-30 13F AMKOR TECHNOLOGY COM 031652100 134,365 8,351 6.63 1,505 -2.97 0.0024
2020-07-22 2020-06-30 13F AMKOR TECHNOLOGY COM 031652100 126,014 26,781 26.99 1,551 100.65 0.0027
2020-05-06 2020-03-31 13F AMKOR TECHNOLOGY COM 031652100 99,233 -93,923 -48.63 773 -69.22 0.0018
2020-02-03 2019-12-31 13F AMKOR TECHNOLOGY COM 031652100 193,156 -117,027 -37.73 2,511 -11.05 0.0043
2019-11-04 2019-09-30 13F AMKOR TECHNOLOGY COM 031652100 310,183 27,661 9.79 2,823 33.92 0.0053
2019-07-30 2019-06-30 13F AMKOR TECHNOLOGY COM 031652100 282,522 -41,818 -12.89 2,108 -23.90 0.0040
2019-06-19 2019-03-31 13F/A-1 AMKOR TECHNOLOGY COM 031652100 324,340 -39,366 -10.82 2,770 16.09 0.0055
2019-05-09 2019-03-31 13F AMKOR TECHNOLOGY COM 031652100 324,340 -39,366 2,770
2019-02-07 2018-12-31 13F AMKOR TECHNOLOGY COM 031652100 363,706 19,737 5.74 2,386 -6.14 0.0057
2018-10-25 2018-09-30 13F AMKOR TECHNOLOGY COM 031652100 343,969 105,057 43.97 2,542 23.88 0.0047
2018-08-02 2018-06-30 13F AMKOR TECHNOLOGY COM 031652100 238,912 8,488 3.68 2,052 -12.08 0.0043
2018-04-23 2018-03-31 13F AMKOR TECHNOLOGY COM 031652100 230,424 -96,107 -29.43 2,334 -28.88 0.0054
2018-02-08 2017-12-31 13F AMKOR TECHNOLOGY COM 031652100 326,531 115,286 54.57 3,282 47.24 0.0078
2017-10-24 2017-09-30 13F AMKOR TECHNOLOGY COM 031652100 211,245 -71,104 -25.18 2,229 -19.21 0.0057
2017-08-02 2017-06-30 13F AMKOR TECHNOLOGY COM 031652100 282,349 30,608 12.16 2,759 -5.45 0.0074
2017-05-02 2017-03-31 13F AMKOR TECHNOLOGY COM 031652100 251,741 121,395 93.13 2,918 112.22 0.0081
2017-02-06 2016-12-31 13F AMKOR TECHNOLOGY COM 031652100 130,346 -133,047 -50.51 1,375 -46.29 0.0041
2016-11-01 2016-09-30 13F AMKOR TECHNOLOGY COM 031652100 263,393 -23,342 -8.14 2,560 55.25 0.0076
2016-08-04 2016-06-30 13F AMKOR TECHNOLOGY COM 031652100 286,735 286,735 0.00 1,649 0.0052
2015-11-05 2015-09-30 13F AMKOR TECHNOLOGY COM 031652100 0 0 0 0.0000
2015-08-04 2015-06-30 13F AMKOR TECHNOLOGY COM 031652100 0 -50,923 -100.00 0 -100.00
2015-05-04 2015-03-31 13F AMKOR TECHNOLOGY COM 031652100 50,923 -16,425 -24.39 450 -5.86 0.0013
2015-02-13 2014-12-31 13F AMKOR TECHNOLOGY COM 031652100 67,348 -145,727 -68.39 478 -73.33 0.0016
2014-11-12 2014-09-30 13F AMKOR TECHNOLOGY COM 031652100 213,075 2,217 1.05 1,792 -23.97 0.0070
2014-08-11 2014-06-30 13F AMKOR TECHNOLOGY COM 031652100 210,858 -66,862 -24.08 2,357 23.73 0.0098
2014-05-12 2014-03-31 13F AMKOR TECHNOLOGY COM 031652100 277,720 31,716 12.89 1,905 26.33 0.0084
2014-08-08 2013-12-31 13F/A-1 AMKOR TECHNOLOGY COM 031652100 246,004 2,552 1.05 1,508 44.72 0.0073
2014-02-13 2013-12-31 13F AMKOR TECHNOLOGY COM 031652100 246,004 1,508
2013-11-12 2013-09-30 13F AMKOR TECHNOLOGY COM 031652100 243,452 100,216 69.97 1,042 72.80 0.0056
2013-08-12 2013-06-30 13F AMKOR TECHNOLOGY COM 031652100 143,236 143,236 603 0.0039
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.