Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionMeeder Asset Management Inc
Latest Disclosed Ownership30,139 shares
Latest Disclosed Value $ 1,357,160
Meeder Asset Management Inc reports 62.47% increase in ownership of AMKR / Amkor Technology, Inc.

On May 7, 2026 - Meeder Asset Management Inc filed a 13F-HR form disclosing ownership of 30,139 shares of Amkor Technology, Inc. (MX:AMKR) valued at $1,357,160 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 18,550 shares of Amkor Technology, Inc.. This represents a change in shares of 62.47% 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)
2026-05-07 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 30,139 11,589 62.47 1,357 85.38 0.0378
2026-02-11 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 18,550 -33,283 -64.21 732 -50.27 0.0395
2025-10-24 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 51,833 0 0.00 1,472 35.42 0.0839
2025-08-07 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 51,833 37,273 256.00 1,088 314.89 0.0668
2025-05-07 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 14,560 116 0.80 263 -29.38 0.0177
2025-02-12 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 14,444 1,041 7.77 371 -9.51 0.0257
2024-11-07 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 13,403 4,399 48.86 410 13.89 0.0274
2024-08-08 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 9,004 0 0.00 360 24.14 0.0253
2024-05-07 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 9,004 0 0.00 290 -3.01 0.0183
2024-01-25 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 9,004 8,897 8,314.95 300 14,850.00 0.0233
2023-11-13 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 107 0 0.00 2 -33.33 0.0002
2023-08-11 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 107 -690 -86.57 3 -85.00 0.0002
2023-05-15 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 797 -14,664 -94.85 21 -94.59 0.0017
2023-02-14 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 15,461 -49,710 -76.28 371 -66.70 0.0324
2022-11-14 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 65,171 -18,508 -22.12 1,111 -21.65 0.0641
2022-08-08 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 83,679 57,080 214.59 1,418 145.75 0.0823
2022-05-10 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 26,599 26,599 577 0.0213
2022-05-10 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 52,309 1,136
2022-02-11 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 0 -9,826 -100.00 0 -100.00
2021-11-08 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 9,826 2,197 28.80 244 34.81 0.0128
2021-08-09 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 7,629 -6,590 -46.35 181 -46.13 0.0084
2021-04-28 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 14,219 14,219 336 0.0172
2021-02-09 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 0 -28,812 -100.00 0 -100.00
2020-11-02 2020-09-30 13F AMKOR TECHNOLOGY COM 031652100 28,812 -7,786 -21.27 322 -28.76 0.0208
2020-08-11 2020-06-30 13F AMKOR TECHNOLOGY COM 031652100 36,598 983 2.76 452 62.59 0.0294
2020-05-15 2020-03-31 13F Amkor Technology Common Stock 031652100 35,615 -2,403 -6.32 278 -43.72 0.0216
2020-02-13 2019-12-31 13F Amkor Technology Common Stock 031652100 38,018 -17,121 -31.05 494 -1.59 0.0302
2019-10-17 2019-09-30 13F Amkor Technology Common Stock 031652100 55,139 -187 -0.34 502 21.55 0.0334
2019-08-05 2019-06-30 13F Amkor Technology Common Stock 031652100 55,326 20,331 58.10 413 38.13 0.0288
2019-04-16 2019-03-31 13F Amkor Technology Common Stock 031652100 34,995 -9,945 -22.13 299 1.36 0.0236
2019-01-17 2018-12-31 13F Amkor Technology Common Stock 031652100 44,940 -21,539 -32.40 295 -39.80 0.0263
2018-11-02 2018-09-30 13F Amkor Technology Common Stock 031652100 66,479 25,539 62.38 490 -99.86 0.0368
2018-07-24 2018-06-30 13F Amkor Technologies Common Stock 031652100 40,940 23,811 139.01 351,674 200,856.57 0.0303
2018-05-03 2018-03-31 13F Amkor Technologies Common Stock 031652100 17,129 -382 -2.18 175 -0.57 0.0162
2018-02-02 2017-12-31 13F Amkor Technologies Common Stock 031652100 17,511 -8,071 -31.55 176 -34.57 0.0150
2017-10-20 2017-09-30 13F Amkor Technology Common Stock 031652100 25,582 1,947 8.24 269 16.45 0.0293
2017-07-13 2017-06-30 13F Amkor Technology Common Stock 031652100 23,635 -9,170 -27.95 231 -39.21 0.0220
2017-05-12 2017-03-31 13F Amkor Technology Common Stock 031652100 32,805 -17,992 -35.42 380 -29.10 0.0340
2017-01-11 2016-12-31 13F Amkor Technology Common Stock 031652100 50,797 -5,791 -10.23 536 -2.55 0.0513
2016-10-19 2016-09-30 13F Amkor Technology Common Stock 031652100 56,588 56,588 550 0.0467
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.