SEC Form 4 · accession 0001628280-26-063420
AMKOR TECHNOLOGY, INC. · AMKR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Daniel JL Liao
Director
Period of report
Sep 22, 2026
Accepted (ET)
Sep 24, 2026 · 4:39 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001047127
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF1 | — | Sep 22, 2026 | A | 15 | A | — | — | Common Stock | 15 | 9,917 | D |
| Restricted Stock UnitsF2 | — | Sep 22, 2026 | A | 4 | A | — | — | Common Stock | 4 | 2,620 | D |
Explanation of responses
- F1Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units ("RSUs") of Amkor Technology, Inc. (the "Issuer") granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.
- F2Represents DEUs accrued upon the payment of a dividend on September 22, 2026 with respect to RSUs of the Issuer granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.