Amkor Technology, Inc.
MX ˙ BMV ˙ US0316521006
SecurityMX:AMKR / Amkor Technology, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership32,856 shares
Latest Disclosed Value $ 1,479,490
Fifth Third Bancorp reports 2,046.05% increase in ownership of AMKR / Amkor Technology, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 32,856 shares of Amkor Technology, Inc. (MX:AMKR) valued at $1,479,490 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,531 shares of Amkor Technology, Inc.. This represents a change in shares of 2,046.05% 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)
2026-05-01 2026-03-31 13F AMKOR TECHNOLOGY COM 031652100 32,856 31,325 2,046.05 1,479 2,365.00 0.0027
2026-02-02 2025-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,531 -64 -4.01 60 33.33 0.0002
2025-11-07 2025-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,595 -18,468 -92.05 45 -89.31 0.0001
2025-07-15 2025-06-30 13F AMKOR TECHNOLOGY COM 031652100 20,063 18,846 1,548.56 421 1,904.76 0.0015
2025-04-15 2025-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,217 71 6.20 22 -27.59 0.0001
2025-01-21 2024-12-31 13F AMKOR TECHNOLOGY COM 031652100 1,146 80 7.50 29 -9.37 0.0001
2024-10-17 2024-09-30 13F AMKOR TECHNOLOGY COM 031652100 1,066 27 2.60 33 -21.95 0.0001
2024-07-22 2024-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,039 95 10.06 42 36.67 0.0002
2024-04-23 2024-03-31 13F AMKOR TECHNOLOGY COM 031652100 944 70 8.01 30 3.45 0.0001
2024-01-19 2023-12-31 13F AMKOR TECHNOLOGY COM 031652100 874 347 65.84 29 163.64 0.0001
2023-10-31 2023-09-30 13F AMKOR TECHNOLOGY COM 031652100 527 -18 -3.30 12 -31.25 0.0001
2023-07-26 2023-06-30 13F AMKOR TECHNOLOGY COM 031652100 545 -30 -5.22 16 14.29 0.0001
2023-04-24 2023-03-31 13F AMKOR TECHNOLOGY COM 031652100 575 156 37.23 15 40.00 0.0001
2023-01-25 2022-12-31 13F AMKOR TECHNOLOGY COM 031652100 419 167 66.27 10 150.00 0.0000
2022-10-25 2022-09-30 13F AMKOR TECHNOLOGY COM 031652100 252 -37 -12.80 4 -20.00 0.0000
2022-08-04 2022-06-30 13F AMKOR TECHNOLOGY COM 031652100 289 -155 -34.91 5 -50.00 0.0000
2022-04-19 2022-03-31 13F AMKOR TECHNOLOGY COM 031652100 444 247 125.38 10 100.00 0.0000
2022-02-01 2021-12-31 13F AMKOR TECHNOLOGY COM 031652100 197 -2 -1.01 5 0.00 0.0000
2021-10-15 2021-09-30 13F AMKOR TECHNOLOGY COM 031652100 199 -847 -80.98 5 -80.00 0.0000
2021-08-06 2021-06-30 13F AMKOR TECHNOLOGY COM 031652100 1,046 0 0.00 25 0.00 0.0001
2021-05-07 2021-03-31 13F AMKOR TECHNOLOGY COM 031652100 1,046 985 1,614.75 25 2,400.00 0.0001
2021-02-16 2020-12-31 13F AMKOR TECHNOLOGY COM 031652100 61 61 1 0.0000
2015-02-13 2014-12-31 13F AMKOR TECHNOLOGY COM 031652100 0 -28,081 -100.00 0 -100.00
2014-11-17 2014-09-30 13F AMKOR TECHNOLOGY COM 031652100 28,081 -13 -0.05 236 -24.84 0.0022
2014-08-14 2014-06-30 13F AMKOR TECHNOLOGY COM 031652100 28,094 28,094 314 0.0028
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.