Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionEnsign Peak Advisors, Inc
Latest Disclosed Ownership7,880 shares
Latest Disclosed Value $ 354,836
Ensign Peak Advisors, Inc ownership in AMKR / Amkor Technology, Inc.

On May 13, 2026 - Ensign Peak Advisors, Inc filed a 13F-HR form disclosing ownership of 7,880 shares of Amkor Technology, Inc. (MX:AMKR) valued at $354,836 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 7,880 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.

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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 7,880 0 0.00 355 13.83 0.0007
2026-02-12 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 7,880 -5,400 -40.66 311 -17.51 0.0005
2025-11-13 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 13,280 -3,950 -22.93 377 4.43 0.0006
2025-08-12 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 17,230 -12,700 -42.43 362 -33.15 0.0006
2025-05-14 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 29,930 0 0.00 541 -29.69 0.0010
2025-02-14 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 29,930 0 0.00 769 -16.07 0.0014
2024-11-14 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 29,930 0 0.00 916 -23.56 0.0016
2024-08-13 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 29,930 0 0.00 1,198 24.17 0.0022
2024-05-14 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 29,930 -1,510 -4.80 965 -7.84 0.0018
2024-02-14 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 31,440 3,850 13.95 1,046 67.90 0.0021
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 27,590 0 0.00 624 -24.02 0.0013
2023-08-14 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 27,590 0 0.00 821 14.37 0.0017
2023-05-15 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 27,590 5,800 26.62 718 37.36 0.0016
2023-02-13 2022-12-31 13F Amkor Technology COM 031652100 21,790 -7,700 -26.11 523 3.78 0.0012
2022-11-14 2022-09-30 13F Amkor Technology COM 031652100 29,490 0 0.00 503 0.60 0.0012
2022-08-12 2022-06-30 13F Amkor Technology COM 031652100 29,490 0 0.00 500 -22.00 0.0012
2022-05-16 2022-03-31 13F Amkor Technology COM 031652100 29,490 0 0.00 641 -12.31 0.0013
2022-02-11 2021-12-31 13F Amkor Technology COM 031652100 29,490 -34,010 -53.56 731 -53.85 0.0014
2021-11-12 2021-09-30 13F Amkor Technology COM 031652100 63,500 0 0.00 1,584 5.39 0.0033
2021-08-13 2021-06-30 13F Amkor Technology COM 031652100 63,500 33,300 110.26 1,503 109.92 0.0030
2021-05-12 2021-03-31 13F Amkor Technology COM 031652100 30,200 30,200 716 0.0015
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.