Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership1,889,405 shares
Latest Disclosed Value $ 85,079,908
Invesco Ltd. reports 69.36% increase in ownership of AMKR / Amkor Technology, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 1,889,405 shares of Amkor Technology, Inc. (MX:AMKR) valued at $85,079,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 1,115,588 shares of Amkor Technology, Inc.. This represents a change in shares of 69.36% 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)
2026-05-12 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,889,405 773,817 69.36 85,080 93.17 0.0016
2026-02-19 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,115,588 -114,343 -9.30 44,043 26.09 0.0068
2025-11-13 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,229,931 703,617 133.69 34,930 216.19 0.0055
2025-08-13 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 526,314 -838,405 -61.43 11,047 -55.18 0.0019
2025-05-12 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,364,719 911,886 201.37 24,647 111.86 0.0047
2025-02-13 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 452,833 -599,554 -56.97 11,633 -63.88 0.0022
2024-11-12 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,052,387 -382,964 -26.68 32,203 -43.94 0.0062
2024-08-13 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,435,351 200,090 16.20 57,443 44.24 0.0121
2024-05-14 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,235,261 127,640 11.52 39,825 8.07 0.0086
2024-02-13 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,107,621 -210,537 -15.97 36,851 23.70 0.0088
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,318,158 144,280 12.29 29,790 -14.70 0.0080
2023-08-11 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,173,878 58,059 5.20 34,923 20.28 0.0092
2023-05-12 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,115,819 -625 -0.06 29,034 8.45 0.0081
2023-02-13 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,116,444 26,750 2.45 26,772 44.10 0.0078
2022-11-14 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,089,694 -132,131 -10.81 18,579 -10.29 0.0060
2022-08-15 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,221,825 -46,074 -3.63 20,709 -24.80 0.0063
2022-05-16 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,267,899 -245,737 -16.23 27,539 -26.61 0.0070
2022-02-14 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,513,636 146,019 10.68 37,523 9.97 0.0090
2021-11-15 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,367,617 61,076 4.67 34,122 10.33 0.0086
2021-08-17 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,306,541 65,105 5.24 30,926 5.07 0.0076
2021-05-17 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,241,436 297,526 31.52 29,434 106.77 0.0079
2021-02-16 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 943,910 50,904 5.70 14,235 42.31 0.0041
2020-11-16 2020-09-30 13F AMKOR TECHNOLOGY COM 031652100 893,006 -64,505 -6.74 10,003 -15.13 0.0034
2020-08-14 2020-06-30 13F AMKOR TECHNOLOGY COM 031652100 957,511 -68,843 -6.71 11,786 47.40 0.0042
2020-05-15 2020-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,026,354 66,501 6.93 7,996 -35.92 0.0034
2020-02-14 2019-12-31 13F AMKOR TECHNOLOGY COM 031652100 959,853 17,512 1.86 12,478 45.52 0.0039
2019-11-14 2019-09-30 13F AMKOR TECHNOLOGY COM 031652100 942,341 -115,179 -10.89 8,575 8.70 0.0022
2019-08-14 2019-06-30 13F/A-1 AMKOR TECHNOLOGY COM 031652100 1,057,520 115,334 12.24 7,889 -1.95 0.0020
2019-08-14 2019-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,057,520 115,334 7,889
2019-05-15 2019-03-31 13F AMKOR TECHNOLOGY COM 031652100 942,186 -105,632 -10.08 8,046 17.05 0.0027
2019-02-14 2018-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,047,818 -141,803 -11.92 6,874 -21.81 0.0026
2018-11-14 2018-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,189,621 -172,762 -12.68 8,791 -24.88 0.0028
2018-08-14 2018-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,362,383 1,063,131 355.26 11,703 286.11 0.0039
2018-05-15 2018-03-31 13F AMKOR TECHNOLOGY COM 031652100 299,252 224,604 300.88 3,031 304.13 0.0011
2018-02-14 2017-12-31 13F AMKOR TECHNOLOGY COM 031652100 74,648 -83,309 -52.74 750 -55.01 0.0003
2017-11-14 2017-09-30 13F AMKOR TECHNOLOGY COM 031652100 157,957 -587,279 -78.80 1,667 -77.10 0.0006
2017-08-14 2017-06-30 13F AMKOR TECHNOLOGY COM 031652100 745,236 -230,043 -23.59 7,281 -35.58 0.0023
2017-05-15 2017-03-31 13F AMKOR TECHNOLOGY COM 031652100 975,279 256,625 35.71 11,303 49.08 0.0037
2017-02-14 2016-12-31 13F AMKOR TECHNOLOGY COM 031652100 718,654 322,465 81.39 7,582 96.88 0.0025
2016-11-14 2016-09-30 13F AMKOR TECHNOLOGY COM 031652100 396,189 66,112 20.03 3,851 102.90 0.0013
2016-08-15 2016-06-30 13F AMKOR TECHNOLOGY COM 031652100 330,077 -105,207 -24.17 1,898 -25.98 0.0007
2016-05-16 2016-03-31 13F AMKOR TECHNOLOGY COM 031652100 435,284 8,369 1.96 2,564 -1.23 0.0010
2016-02-16 2015-12-31 13F AMKOR TECHNOLOGY COM 031652100 426,915 -40,650 -8.69 2,596 23.68 0.0010
2015-11-16 2015-09-30 13F AMKOR TECHNOLOGY COM 031652100 467,565 -72,221 -13.38 2,099 -34.98 0.0009
2015-08-14 2015-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 539,786 207,376 62.39 3,228 9.91 0.0013
2015-05-15 2015-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 332,410 58,701 21.45 2,937 51.16 0.0011
2015-02-13 2014-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 273,709 -57,093 -17.26 1,943 -30.16 0.0008
2014-11-14 2014-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 330,802 -213,440 -39.22 2,782 -54.28 0.0011
2014-08-14 2014-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 544,242 363,753 201.54 6,085 391.12 0.0024
2014-05-15 2014-03-31 13F AMKOR TECHNOLOGY COMMON 031652100 180,489 -414,975 -69.69 1,239 -66.05 0.0005
2014-02-13 2013-12-31 13F AMKOR TECHNOLOGY COMMON 031652100 595,464 176,860 42.25 3,650 103.68 0.0014
2013-11-13 2013-09-30 13F AMKOR TECHNOLOGY COMMON 031652100 418,604 140,023 50.26 1,792 52.90 0.0008
2013-08-14 2013-06-30 13F AMKOR TECHNOLOGY COMMON 031652100 278,581 278,581 1,172 0.0005
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.