Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2025-12-16 00:00:00 ET · period of report 2025-12-12 · accession 0001628280-25-057398 · 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 | 2025-12-16 | 2025-12-12 | AMKR | McCourt MaryFrances | Dir | S - Sale+OE | $46.02 | -20.0K | 55.9K | -26% | -$920.4K |
| D | 2025-12-16 | 2025-12-12 | AMKR | McCourt MaryFrances | Dir | M - OptEx | $19.39 | +20.0K | 75.9K | +36% | +$387.8K |
| D | 2025-12-16 | 2025-12-12 | AMKR | McCourt MaryFrances | Dir | M - OptEx | $0.00 | -20.0K | 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 | 2025-12-12 | S | D | 20,000 | $46.02 | 55,918 | D | — | — | (F1) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.98 to $46.09. The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4. |
| 2 | Common | Common Stock | 2025-12-12 | M | A | 20,000 | $19.39 | 75,918 | D | — | — | |
| 3 | Derivative | Director Stock Option (Right-to-Buy) | 2025-12-12 | M | D | 20,000 | $0.00 | 0 | D | $19.39 · 2022-05-17 to 2031-05-18 | 20,000 Common Stock | (F2) This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 18, 2021 and vested in full on May 17, 2022. |