| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMKR | Common Stock | Options Exercise | $44.4K | +5K | +33.68% | $8.88 | 19.8K | Aug 19, 2021 | Direct | |
| transaction | AMKR | Common Stock | Sale | -$120K | -5K | -25.2% | $23.98 | 14.8K | Aug 19, 2021 | Direct | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMKR | Employee Stock Option (Right-to-Buy) | Options Exercise | $0 | -5K | -52.63% | $0.00 | 4.5K | Aug 19, 2021 | Common Stock | 5K | $8.88 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2021. |
| F2 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $23.84 to $24.11.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 (2) to this Form 4. |
| F3 | This stock option (the "Option") to acquire 75,000 shares of the Issuer's common stock (the "Option Shares") was granted on September 12, 2016 (the "Grant Date") and vested over four years as follows: (i) with respect to 25% of the Option Shares, on the first anniversary of the Grant Date; and (ii) with respect to the remainder of the Option Shares, in equal quarterly installments thereafter, such that 100% of the Option became vested on the fourth anniversary of the Grant Date. |