Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2026-07-02 16:36:39 ET · period of report 2026-06-30 · accession 0001628280-26-046958 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-07-02 16:36 | 2026-06-30 | AMKR | Faust Megan | CFO | M - OptEx | $0.00 | +8,692 | 140.8K | +7% | $0 |
| D | 2026-07-02 16:36 | 2026-06-30 | AMKR | Faust Megan | CFO | F - Tax | $86.23 | -3,725 | 137.1K | -3% | -$321.2K |
| D | 2026-07-02 16:36 | 2026-06-30 | AMKR | Faust Megan | CFO | M - OptEx | $0.00 | -8,692 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-30 | M | A | 8,692 | $0.00 | 140,830 | D | — | — | |
| 2 | Common | Common Stock | 2026-06-30 | F | D | 3,725 | $86.23 | 137,105 | D | — | — | (F1) The 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. |
| 3 | Derivative | Restricted Stock Units | 2026-06-30 | M | D | 8,692 | $0.00 | 0 | D | $0.00 · — to — | 8,692 Common Stock | (F2) On 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. (F2) On 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. |