Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2026-02-26 00:00:00 ET · period of report 2026-02-24 · accession 0001628280-26-012300 · 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 | 2026-02-26 | 2026-02-24 | AMKR | Rutten Guillaume Marie Jean | Dir | M - OptEx | $0.00 | +10.7K | 563.9K | +2% | $0 |
| D | 2026-02-26 | 2026-02-24 | AMKR | Rutten Guillaume Marie Jean | Dir | S - Sale+OE | $48.80 | -20.0K | 543.9K | -4% | -$976.0K |
| D | 2026-02-26 | 2026-02-24 | AMKR | Rutten Guillaume Marie Jean | Dir | M - OptEx | $0.00 | -10.7K | 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 | 2026-02-24 | M | A | 10,748 | $0.00 | 563,866 | D | — | — | |
| 2 | Common | Common Stock | 2026-02-24 | S | D | 20,000 | $48.80 | 543,866 | D | — | — | (F1) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.80 to $48.86. 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. |
| 3 | Derivative | Restricted Stock Units | 2026-02-24 | M | D | 10,748 | $0.00 | 0 | D | $0.00 · — to — | 10,748 Common Stock | (F2) Represents shares of the Issuer's common stock underlying time-vested restricted stock units ("RSUs") on February 24, 2022 (the "Grant Date") pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as a service provider of the Issuer and vested in four equal annual installments beginning on the first anniversary of the Grant Date. |