Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionEnvestnet Asset Management Inc
Latest Disclosed Ownership741,052 shares
Latest Disclosed Value $ 33,369,553
Envestnet Asset Management Inc reports 2.87% increase in ownership of AMKR / Amkor Technology, Inc.

On May 4, 2026 - Envestnet Asset Management Inc filed a 13F-HR form disclosing ownership of 741,052 shares of Amkor Technology, Inc. (MX:AMKR) valued at $33,369,553 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 720,384 shares of Amkor Technology, Inc.. This represents a change in shares of 2.87% 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)
2026-05-04 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 741,052 20,668 2.87 33,370 17.33 0.0089
2026-02-10 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 720,384 -49,419 -6.42 28,441 30.09 0.0084
2025-11-05 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 769,803 -10,046 -1.29 21,862 33.56 0.0063
2025-08-01 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 779,849 167,748 27.41 16,369 48.08 0.0048
2025-04-29 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 612,101 40,653 7.11 11,055 -24.70 0.0036
2025-02-13 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 571,448 44,689 8.48 14,680 -8.92 0.0047
2024-11-07 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 526,759 95,526 22.15 16,119 -6.60 0.0052
2024-08-08 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 431,233 51,711 13.63 17,258 41.05 0.0060
2024-05-13 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 379,522 31,538 9.06 12,236 5.68 0.0046
2024-02-13 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 347,984 -947 -0.27 11,577 46.82 0.0048
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 348,931 112,615 47.65 7,886 12.16 0.0036
2023-08-04 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 236,316 -337,673 -58.83 7,030 23.64 0.0031
2023-05-11 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 573,989 368,908 179.88 5,686 15.64 0.0027
2023-02-07 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 205,081 41,297 25.21 4,918 76.05 0.0025
2022-11-10 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 163,784 -10,241 -5.88 2,793 -5.32 0.0016
2022-08-03 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 174,025 19,781 12.82 2,950 -11.94 0.0016
2022-05-04 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 154,244 26,458 20.70 3,350 5.74 0.0017
2022-02-04 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 127,786 40,550 46.48 3,168 45.52 0.0016
2021-10-07 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 87,236 12,752 17.12 2,177 23.48 0.0012
2021-08-04 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 74,484 26,981 56.80 1,763 56.57 0.0010
2021-05-04 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 47,503 36,398 327.76 1,126 574.25 0.0007
2021-02-02 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 11,105 11,105 167 0.0001
2017-11-13 2017-09-30 13F AMKOR TECHNOLOGY COM 031652100 0 -373 -100.00 0 -100.00
2017-08-14 2017-06-30 13F AMKOR TECHNOLOGY COM 031652100 373 65 21.10 4 0.00 0.0000
2017-05-09 2017-03-31 13F AMKOR TECHNOLOGY COM 031652100 308 308 4 0.0000
2015-02-12 2014-12-31 13F Amkor Technology COM 031652100 0 -4,217 -100.00 0 -100.00
2014-11-13 2014-09-30 13F Amkor Technology COM 031652100 4,217 -139 -3.19 35 -28.57 0.0004
2014-08-14 2014-06-30 13F * AMKOR TECHNOLOGY COM 031652100 4,356 4,356 49 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.