Amkor Technology, INC Schedule 13G passive stakes

Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.

NASDAQ
Dimensional Fund Advisors LP has disclosed a beneficial ownership of 4.4% of Amkor Technology Inc.'s common stock as of March 31, 2026.
NASDAQ
The Vanguard Group has filed an amended Schedule 13G, reporting 0% beneficial ownership in Amkor Technology Inc. following an internal realignment.