Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership73,899 shares
Latest Disclosed Value $ 3,304,917
Hsbc Holdings Plc reports 65.61% decrease in ownership of AMKR / Amkor Technology, Inc.

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 73,899 shares of Amkor Technology, Inc. (MX:AMKR) valued at $3,304,917 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 214,876 shares of Amkor Technology, Inc.. This represents a change in shares of -65.61% 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)
2026-04-30 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 73,899 -140,977 -65.61 3,305 -61.55 0.0002
2026-03-20 2025-12-31 13F/A-1 AMKOR TECHNOLOGY COM 031652100 214,876 200,369 1,381.19 8,593 1,990.51 0.0005
2026-03-06 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 214,876 200,369 1,381.19 8,593 1,990.51 0.0004
2025-11-13 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 14,507 -2,704 -15.71 412 13.85 0.0002
2025-08-13 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 17,211 -16 -0.09 361 16.08 0.0002
2025-05-14 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 17,227 -16,948 -49.59 311 -64.62 0.0002
2025-02-14 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 34,175 -113,192 -76.81 879 -80.56 0.0005
2024-11-14 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 147,367 80,347 119.89 4,522 67.26 0.0026
2024-08-12 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 67,020 55,856 500.32 2,704 652.92 0.0017
2024-05-15 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 11,164 3,326 42.43 360 38.08 0.0002
2024-02-12 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 7,838 7,838 261 0.0002
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 0 -8,365 -100.00 0 -100.00
2023-08-11 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 8,365 -1,660 -16.56 249 -4.62 0.0003
2023-05-15 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 10,025 -26,875 -72.83 261 -70.69 0.0003
2023-02-14 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 36,900 -91,664 -71.30 887 -59.55 0.0010
2022-11-14 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 128,564 33,265 34.91 2,193 34.62 0.0036
2022-08-11 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 95,299 76,133 397.23 1,629 287.86 0.0023
2022-05-16 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 19,166 1,271 7.10 420 -5.41 0.0005
2022-02-11 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 17,895 3,575 24.97 444 22.65 0.0004
2021-11-12 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 14,320 5,311 58.95 362 68.37 0.0004
2021-08-13 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 9,009 -27,920 -75.60 215 -75.37 0.0002
2021-05-14 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 36,929 -16,976 -31.49 873 7.51 0.0010
2021-02-25 2020-12-31 13F/A-1 AMKOR TECHNOLOGY COM 031652100 53,905 -1,251 -2.27 812 29.92 0.0011
2021-02-12 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 53,905 -1,251 812 192.7986
2020-11-12 2020-09-30 13F AMKOR TECHNOLOGY COM 031652100 55,156 -171,602 -75.68 625 -77.61 0.0010
2020-08-14 2020-06-30 13F AMKOR TECHNOLOGY COM 031652100 226,758 -69,895 -23.56 2,791 17.86 0.0053
2020-05-15 2020-03-31 13F AMKOR TECHNOLOGY COM 031652100 296,653 4,225 1.44 2,368 -37.82 0.0055
2020-02-14 2019-12-31 13F AMKOR TECHNOLOGY COM 031652100 292,428 -52,118 -15.13 3,808 21.43 0.0066
2019-11-14 2019-09-30 13F AMKOR TECHNOLOGY COM 031652100 344,546 161,182 87.90 3,136 129.24 0.0059
2019-08-13 2019-06-30 13F AMKOR TECHNOLOGY COM 031652100 183,364 4,668 2.61 1,368 -10.35 0.0026
2019-05-15 2019-03-31 13F AMKOR TECHNOLOGY COM 031652100 178,696 -7,287 -3.92 1,526 25.08 0.0028
2019-02-13 2018-12-31 13F AMKOR TECHNOLOGY COM 031652100 185,983 92,579 99.12 1,220 76.81 0.0023
2018-11-13 2018-09-30 13F AMKOR TECHNOLOGY COM 031652100 93,404 65 0.07 690 -13.97 0.0011
2018-08-10 2018-06-30 13F AMKOR TECHNOLOGY COM 031652100 93,339 15,334 19.66 802 1.52 0.0014
2018-05-11 2018-03-31 13F AMKOR TECHNOLOGY COM 031652100 78,005 57 0.07 790 0.89 0.0012
2018-02-14 2017-12-31 13F AMKOR TECHNOLOGY COM 031652100 77,948 15,568 24.96 783 19.00 0.0011
2017-11-14 2017-09-30 13F AMKOR TECHNOLOGY COM 031652100 62,380 1,676 2.76 658 10.96 0.0011
2017-08-14 2017-06-30 13F AMKOR TECHNOLOGY COM 031652100 60,704 2,019 3.44 593 -12.79 0.0011
2017-05-15 2017-03-31 13F AMKOR TECHNOLOGY COM 031652100 58,685 -16,399 -21.84 680 -14.14 0.0014
2017-02-09 2016-12-31 13F AMKOR TECHNOLOGY COM 031652100 75,084 -19,621 -20.72 792 -14.01 0.0018
2016-11-14 2016-09-30 13F AMKOR TECHNOLOGY COM 031652100 94,705 -2,358 -2.43 921 65.05 0.0023
2016-08-12 2016-06-30 13F AMKOR TECHNOLOGY COM 031652100 97,063 8,551 9.66 558 7.10 0.0015
2016-05-13 2016-03-31 13F AMKOR TECHNOLOGY COM 031652100 88,512 -3,416 -3.72 521 -6.80 0.0015
2016-02-12 2015-12-31 13F AMKOR TECHNOLOGY COM 031652100 91,928 -3,736 -3.91 559 30.30 0.0013
2015-11-12 2015-09-30 13F AMKOR TECHNOLOGY COM 031652100 95,664 31,774 49.73 429 12.30 0.0011
2015-08-13 2015-06-30 13F AMKOR TECHNOLOGY COM 031652100 63,890 -1,591 -2.43 382 -34.02 0.0008
2015-05-14 2015-03-31 13F AMKOR TECHNOLOGY COM 031652100 65,481 33,948 107.66 579 168.06 0.0011
2014-05-14 2014-03-31 13F AMKOR TECHNOLOGY COM 031652100 31,533 -8,467 -21.17 216 26.32 0.0005
2013-11-14 2013-09-30 13F AMKOR TECHNOLOGY COM 031652100 40,000 40,000 171 0.0005
2013-10-11 2012-06-30 13F/A-1 AMKOR TECHNOLOGY COM 031652100 0 -25,000 -100.00 0 -100.00
2013-10-11 2012-03-31 13F/A-1 AMKOR TECHNOLOGY COM 031652100 25,000 25,000 154 0.0007
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.