| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMPH | Common Stock | Tax liability | $78,124 | -2,283 | -2.8% | $34.22 | 80,030 | 16 Mar 2022 | Direct | F1 |
| transaction | AMPH | Common Stock | Tax liability | $83,638 | -2,447 | -3.1% | $34.18 | 77,583 | 17 Mar 2022 | Direct | F1 |
| holding | AMPH | Common Stock | 99,668 | 16 Mar 2022 | See footnote | F2 | |||||
| holding | AMPH | Common Stock | 5,000 | 16 Mar 2022 | See footnote | F3 |
| Id | Content |
|---|---|
| F1 | The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs. |
| 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. |