Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionPanagora Asset Management Inc
Latest Disclosed Ownership8,144 shares
Latest Disclosed Value $ 366,724
Panagora Asset Management Inc ownership in AMKR / Amkor Technology, Inc.

On May 14, 2026 - Panagora Asset Management Inc filed a 13F-HR form disclosing ownership of 8,144 shares of Amkor Technology, Inc. (MX:AMKR) valued at $366,724 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 8,144 shares of Amkor Technology, Inc.. This represents a change in shares of 0.00% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 8,144 0 0.00 367 14.02 0.0014
2026-02-13 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 8,144 0 0.00 322 38.96 0.0011
2025-11-13 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 8,144 8,144 231 0.0009
2025-02-13 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 0 -294,705 -100.00 0 -100.00
2024-11-13 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 294,705 294,705 9,018 0.0431
2023-08-11 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 0 -112,047 -100.00 0 -100.00
2023-05-12 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 112,047 -495,939 -81.57 2,915 -80.01 0.0184
2023-02-13 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 607,986 -5,460 -0.89 14,580 39.39 0.0956
2022-11-14 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 613,446 4,914 0.81 10,459 1.40 0.0725
2022-08-15 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 608,532 92,484 17.92 10,315 -7.98 0.0676
2022-05-12 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 516,048 19,605 3.95 11,209 -8.92 0.0610
2022-02-10 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 496,443 -36,839 -6.91 12,307 -7.50 0.0652
2021-11-10 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 533,282 -2,596 -0.48 13,305 4.90 0.0711
2021-08-11 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 535,878 -18,651 -3.36 12,684 -3.53 0.0680
2021-05-12 2021-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 554,529 118,153 27.08 13,148 99.79 0.0738
2021-02-10 2020-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 436,376 -283,509 -39.38 6,581 -18.38 0.0389
2020-11-13 2020-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 719,885 49,655 7.41 8,063 -2.27 0.0505
2020-08-12 2020-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 670,230 73,879 12.39 8,250 77.57 0.0526
2020-05-14 2020-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 596,351 -423,018 -41.50 4,646 -64.94 0.0329
2020-02-12 2019-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 1,019,369 374,037 57.96 13,252 125.64 0.0602
2019-11-12 2019-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 645,332 148,422 29.87 5,873 58.43 0.0271
2019-08-09 2019-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 496,910 193,186 63.61 3,707 42.91 0.0166
2019-05-15 2019-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 303,724 228,493 303.72 2,594 425.10 0.0115
2019-02-14 2018-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 75,231 -16,969 -18.40 494 -27.46 0.0023
2018-11-13 2018-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 92,200 -17,937 -16.29 681 -28.01 0.0026
2018-08-14 2018-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 110,137 -59,208 -34.96 946 -44.84 0.0038
2018-05-15 2018-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 169,345 68,683 68.23 1,715 69.47 0.0068
2018-02-14 2017-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 100,662 90,105 853.51 1,012 811.71 0.0038
2017-11-14 2017-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 10,557 -1,921 -15.40 111 -9.02 0.0004
2017-08-14 2017-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 12,478 1,921 18.20 122 0.00 0.0005
2017-05-15 2017-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 10,557 -11,005 -51.04 122 -46.26 0.0005
2017-02-14 2016-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 21,562 -5,155 -19.29 227 -12.69 0.0010
2016-11-14 2016-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 26,717 -18,388 -40.77 260 0.39 0.0012
2016-08-15 2016-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 45,105 -110,687 -71.05 259 -71.76 0.0013
2016-05-16 2016-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 155,792 -48,356 -23.69 917 -26.11 0.0046
2016-02-12 2015-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 204,148 -210,292 -50.74 1,241 -33.32 0.0061
2015-11-13 2015-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 414,440 -83,644 -16.79 1,861 -37.51 0.0098
2015-08-14 2015-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 498,084 109,505 28.18 2,978 -13.25 0.0149
2015-05-15 2015-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 388,579 171,984 79.40 3,433 123.21 0.0174
2015-02-13 2014-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 216,595 40,152 22.76 1,538 3.64 0.0079
2014-11-12 2014-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 176,443 -155,482 -46.84 1,484 -60.01 0.0072
2014-08-14 2014-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 331,925 9,234 2.86 3,711 67.62 0.0180
2014-05-15 2014-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 322,691 103,694 47.35 2,214 64.98 0.0105
2014-02-21 2013-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 218,997 197,697 928.15 1,342 1,374.73 0.0062
2013-11-14 2013-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 21,300 15,136 245.55 91 250.00 0.0004
2013-08-14 2013-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 6,164 6,164 26 0.0001
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.