Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2025-11-18 00:00:00 ET · period of report 2025-11-14 · accession 0001628280-25-052924 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-11-18 | 2025-11-14 | AMKR | Engel Kevin | EVP | M - OptEx | $0.00 | +669 | 11.4K | +6% | $0 |
| DM | 2025-11-18 | 2025-11-14 | AMKR | Engel Kevin | EVP | F - Tax | $31.68 | -669 | 11.3K | -6% | -$21.2K |
| DM | 2025-11-18 | 2025-11-14 | AMKR | Engel Kevin | EVP | M - OptEx | $0.00 | -669 | 910 | -42% | $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 | 2025-11-14 | M | A | 369 | $0.00 | 11,690 | D | — | — | |
| 2 | Common | Common Stock | 2025-11-14 | F | D | 223 | $31.68 | 11,321 | D | — | — | |
| 3 | Common | Common Stock | 2025-11-14 | F | D | 47 | $31.68 | 11,321 | D | — | — | |
| 4 | Common | Common Stock | 2025-11-14 | F | D | 369 | $31.68 | 11,321 | D | — | — | |
| 5 | Common | Common Stock | 2025-11-14 | M | A | 223 | $0.00 | 11,544 | D | — | — | |
| 6 | Common | Common Stock | 2025-11-14 | M | A | 30 | $0.00 | 11,351 | D | — | — | |
| 7 | Common | Common Stock | 2025-11-14 | F | D | 30 | $31.68 | 11,321 | D | — | — | |
| 8 | Common | Common Stock | 2025-11-14 | M | A | 47 | $0.00 | 11,368 | D | — | — | |
| 9 | Derivative | Restricted Stock Units | 2025-11-14 | M | D | 47 | $0.00 | 2,736 | D | $0.00 · — to — | 47 Common Stock | (F2) The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. |
| 10 | Derivative | Restricted Stock Units | 2025-11-14 | M | D | 223 | $0.00 | 12,942 | D | $0.00 · — to — | 223 Common Stock | (F3) The reported transaction involved the withholding of 223 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. |
| 11 | Derivative | Restricted Stock Units | 2025-11-14 | M | D | 369 | $0.00 | 32,225 | D | $0.00 · — to — | 369 Common Stock | (F4) The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. |
| 12 | Derivative | Restricted Stock Units | 2025-11-14 | M | D | 30 | $0.00 | 910 | D | $0.00 · — to — | 30 Common Stock | (F1) The reported transaction involved the withholding of 30 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status. |