Institutional Ownership
Amkor Technology Inc
CUSIP 031652100COMAMKRQ1 2026
13D / 13G Filings
17
Schedule 13D/13G on record
Beneficial Filers
5
Distinct reporting persons
Largest Stake
33.7%
Max % of class reported
Institutional Holders
514
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
17 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | James J. Kim | 13D/A | 30.5% | — | SEC |
| 2 | May 16, 2025 | James J. Kim | 13D/A | 33.7% | — | SEC |
| 3 | Oct 4, 2024 | Kim James J | 13D/A | — | — | SEC |
| 4 | Jul 8, 2024 | Blackrock Inc. | 13G/A | 4.9% | 12.14M | SEC |
| 5 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 6.0% | 14.76M | SEC |
| 6 | Feb 9, 2024 | Dimensional Fund Advisors LP | 13G/A | 6.0% | 14.86M | SEC |
| 7 | Jan 29, 2024 | Blackrock Inc. | 13G/A | 6.1% | 14.92M | SEC |
| 8 | Sep 11, 2023 | Kim James J | 13D/A | 16.4% | 40.31M | SEC |
| 9 | Feb 10, 2023 | Dimensional Fund Advisors LP | 13G/A | 6.4% | 15.71M | SEC |
| 10 | Feb 9, 2023 | Vanguard Group Inc | 13G | 5.4% | 13.13M | SEC |
7 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Amkor Technology Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 12.97M | $583.98M |
| 2 | Dimensional Fund Advisors LP | 10.99M | $494.88M |
| 3 | Jpmorgan Chase & Co | 5.41M | $223.02M |
| 4 | State Street Corp | 3.63M | $163.39M |
| 5 | Earnest Partners LLC | 3.43M | $154.54M |
| 6 | Aqr Capital Management LLC | 3.24M | $141.42M |
| 7 | Point72 Asset Management, L.P. | 2.99M | $134.79M |
| 8 | Geode Capital Management, LLC | 2.73M | $122.98M |
| 9 | American Century Companies Inc | 2.71M | $122.18M |
| 10 | Principal Financial Group Inc | 2.62M | $118.11M |