| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMPH | Common Stock | Sale | -$1.88M | -55.3K | -2.49% | $33.97 | 2.17M | May 18, 2022 | Direct | F1, F2 |
| transaction | AMPH | Common Stock | Sale | -$340K | -9.78K | -0.45% | $34.77 | 2.16M | May 18, 2022 | Direct | F1, F3 |
| transaction | AMPH | Common Stock | Sale | -$71.8K | -2.01K | -0.09% | $35.78 | 2.16M | May 18, 2022 | Direct | F1, F4 |
| transaction | AMPH | Common Stock | Sale | -$1.4M | -41.6K | -1.93% | $33.76 | 2.11M | May 19, 2022 | Direct | F1, F5 |
| transaction | AMPH | Common Stock | Sale | -$3.94K | -115 | -0.01% | $34.28 | 2.11M | May 19, 2022 | Direct | F1 |
| holding | AMPH | Common Stock | 1.5M | May 18, 2022 | See footnote | F6 | |||||
| holding | AMPH | Common Stock | 6.83M | May 18, 2022 | See footnote | F7 | |||||
| holding | AMPH | Common Stock | 5K | May 18, 2022 | See footnote | F8 |
| 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 December 13, 2021. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.44 to $34.43, 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 within the ranges set forth in footnotes (2) through (5) to this Form 4. |
| F3 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.45 to $35.44, inclusive. |
| F4 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.45 to $36.15, inclusive. |
| F5 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.27 to $34.24, inclusive. |
| F6 | The securities are held of record by Mary Z. Luo. The reporting persons are husband and wife. |
| F7 | The shares are held of record by Applied Physics & Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners. |
| F8 | The shares are held of record in an account for the benefit of the reporting persons' son. The reporting persons disclaim beneficial ownership of these shares, and the inclusion of these shares in this report should not be deemed an admission of beneficial ownership of any such shares for purposes of Section 16, or for any other purpose. |