Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2026-04-09 17:03:14 ET · period of report 2026-04-07 · accession 0001628280-26-024516 · 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 | 2026-04-09 17:03 | 2026-04-07 | AMKR | Morse Robert Randolph | Dir | M - OptEx | $5.66 | +20.0K | 137.4K | +17% | +$113.2K |
| D | 2026-04-09 17:03 | 2026-04-07 | AMKR | Morse Robert Randolph | Dir | F - Tax | $0.00 | -2,378 | 135.0K | -2% | $0 |
| D | 2026-04-09 17:03 | 2026-04-07 | AMKR | Morse Robert Randolph | 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 | 2026-04-07 | M | A | 20,000 | $5.66 | 137,355 | D | — | — | |
| 2 | Common | Common Stock | 2026-04-07 | F | D | 2,378 | $0.00 | 134,977 | D | — | — | (F1) Exempt purchase under Section 16b-3. Transaction executed as net exercise executed with Amkor Technology, Inc. (the "Issuer"), in which no shares were purchased or sold in the open market. |
| 3 | Derivative | Director Stock Option (Right-to-Buy) | 2026-04-07 | M | D | 20,000 | $0.00 | 0 | D | $5.66 · 2017-05-04 to 2026-05-04 | 20,000 Common Stock | (F2) This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 4, 2016 and vested in full on May 2, 2017. (F2) This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 4, 2016 and vested in full on May 2, 2017. |