| 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 | 02 Aug 2021 | Direct | |
| transaction | AMPH | Common Stock | Sale | $193,734 | -9,123 | -9.9% | $21.24 | 83,121 | 02 Aug 2021 | Direct | F1, F2 |
| holding | AMPH | Common Stock | 99,668 | 02 Aug 2021 | See footnote | F3 | |||||
| holding | AMPH | Common Stock | 5,000 | 02 Aug 2021 | See footnote | F4 |
| 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 | -43% | $0.000000 | 7,813 | 02 Aug 2021 | Common Stock | 6,000 | $10.48 | Direct | F5 |
| 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.17 to $21.27, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. |
| F3 | The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee. |
| F4 | The shares are held of record by the reporting person's spouse. |
| F5 | Shares subject to the option are fully vested and immediately exercisable. |