Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionLPL Financial LLC
Latest Disclosed Ownership848,249 shares
Latest Disclosed Value $ 38,196,661
LPL Financial LLC reports 1,106.87% increase in ownership of AMKR / Amkor Technology, Inc.

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 848,249 shares of Amkor Technology, Inc. (MX:AMKR) valued at $38,196,661 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 70,285 shares of Amkor Technology, Inc.. This represents a change in shares of 1,106.87% 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)
2026-05-06 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 848,249 777,964 1,106.87 38,197 1,276.93 0.0101
2026-02-11 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 70,285 -11,341 -13.89 2,775 19.67 0.0008
2025-11-12 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 81,626 -8,616 -9.55 2,318 22.39 0.0007
2025-08-12 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 90,242 47,304 110.17 1,894 144.39 0.0006
2025-05-07 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 42,938 -21,816 -33.69 775 -53.40 0.0003
2025-02-11 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 64,754 -10,444 -13.89 1,664 -27.73 0.0007
2024-11-08 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 75,198 -21,846 -22.51 2,301 -40.74 0.0010
2024-08-07 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 97,044 7,579 8.47 3,884 34.64 0.0019
2024-05-10 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 89,465 7,611 9.30 2,884 5.91 0.0015
2024-02-14 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 81,854 17,056 26.32 2,723 86.00 0.0016
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 64,798 26,644 69.83 1,464 28.99 0.0010
2023-07-31 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 38,154 4,755 14.24 1,135 30.61 0.0008
2023-05-10 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 33,399 544 1.66 869 10.42 0.0007
2023-02-07 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 32,855 -445 -1.34 788 38.56 0.0007
2022-11-14 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 33,300 -13,600 -29.00 568 -28.55 0.0005
2022-08-12 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 46,900 9,502 25.41 795 -2.09 0.0008
2022-05-16 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 37,398 12,236 48.63 812 30.13 0.0007
2022-02-14 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 25,162 4,747 23.25 624 22.59 0.0005
2021-11-15 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 20,415 1,145 5.94 509 11.62 0.0005
2021-08-13 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 19,270 -5,614 -22.56 456 -22.71 0.0005
2021-05-14 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 24,884 14,678 143.82 590 283.12 0.0007
2021-02-12 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 10,206 10,206 154 0.0002
2019-08-09 2019-06-30 13F AMKOR TECHNOLOGY COM 031652100 0 -17,872 -100.00 0 -100.00
2019-05-08 2019-03-31 13F AMKOR TECHNOLOGY COM 031652100 17,872 0 0.00 153 30.77 0.0003
2019-02-07 2018-12-31 13F AMKOR TECHNOLOGY COM 031652100 17,872 -1,030 -5.45 117 -16.43 0.0003
2018-11-14 2018-09-30 13F AMKOR TECHNOLOGY COM 031652100 18,902 18,902 140 0.0003
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.