SEC Form 4 · accession 0001628280-26-046958
AMKOR TECHNOLOGY, INC. · AMKR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Megan Faust
Officer — CFO
Period of report
Jun 30, 2026
Accepted (ET)
Jul 2, 2026 · 4:36 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001047127
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jun 30, 2026 | M | 8,692 | $0.00 | A | 140,830 | D | |
| Common Stock | Jun 30, 2026 | F | 3,725 | $86.23 | D | 137,105 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF2 | $0.00 | Jun 30, 2026 | M | 8,692 | D | — | — | Common Stock | 8,692 | 0 | D |
Explanation of responses
- F1The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person.
- F2On the Grant Date, the Reporting Person was granted 43,459 RSUs, which vested in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% was vested on June 30, 2026.