Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2026-08-11 16:36:10 ET · period of report 2026-08-07 · accession 0001628280-26-055750 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-11 16:36 | 2026-08-07 | AMKR | ALEXANDER DOUGLAS A | Dir | M - OptEx | $8.51 | +5,000 | 34.1K | +17% | +$42.5K |
| DT | 2026-08-11 16:36 | 2026-08-07 | AMKR | ALEXANDER DOUGLAS A | Dir | S - Sale+OE | $55.81 | -5,000 | 29.1K | -15% | -$279.1K |
| DT | 2026-08-11 16:36 | 2026-08-07 | AMKR | ALEXANDER DOUGLAS A | Dir | M - OptEx | $0.00 | -5,000 | 14.7K | -25% | $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 | 2026-08-07 | M | A | 5,000 | $8.51 | 34,109 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-07 | S | D | 5,000 | $55.81 | 29,109 | D | — | — | (F1) The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 8, 2026. |
| 3 | Derivative | Director Stock Option (Right-to-Buy) | 2026-08-07 | M | D | 5,000 | $0.00 | 14,657 | D | $8.51 · 2019-05-01 to 2028-05-01 | 5,000 Common Stock | (F2) This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 1, 2018, vested in full on May 1, 2019. |