| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMPH | Common Stock | Options Exercise | $62,880 | +6,000 | +7% | $10.48 | 92,244 | 26 Jul 2021 | Direct | |
| transaction | AMPH | Common Stock | Sale | $125,220 | -6,000 | -6.5% | $20.87 | 86,244 | 26 Jul 2021 | Direct | F1 |
| holding | AMPH | Common Stock | 99,668 | 26 Jul 2021 | See footnote | F2 | |||||
| holding | AMPH | Common Stock | 5,000 | 26 Jul 2021 | See footnote | F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMPH | Employee Stock Option (right to buy) | Options Exercise | $0 | -6,000 | -30% | $0.000000 | 13,813 | 26 Jul 2021 | Common Stock | 6,000 | $10.48 | Direct | F4 |
| 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 June 16, 2021. |
| F2 | The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee. |
| F3 | The shares are held of record by the reporting person's spouse. |
| F4 | Shares subject to the option are fully vested and immediately exercisable. |