-
Signature
-
/s/ Eva Wen, by power of attorney for Jack Y. Zhang
-
Issuer symbol
-
AMPH
-
Transactions as of
-
06 Mar 2023
-
Transactions value $
-
$0
-
Form type
-
4
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Filing time
-
08 Mar 2023, 15:05:27 UTC
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
AMPH |
Common Stock |
Award |
$0 |
+81.4K |
+3.87% |
$0.00 |
2.19M |
06 Mar 2023 |
Direct |
F1 |
| transaction |
AMPH |
Common Stock |
Award |
$0 |
+34.3K |
+2.29% |
$0.00 |
1.53M |
06 Mar 2023 |
See footnote |
F1, F2 |
| holding |
AMPH |
Common Stock |
|
|
|
|
|
6.83M |
06 Mar 2023 |
See footnote |
F3 |
| holding |
AMPH |
Common Stock |
|
|
|
|
|
5K |
06 Mar 2023 |
See footnote |
F4 |
Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
| 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) |
Award |
$0 |
+171K |
|
$0.00 |
171K |
06 Mar 2023 |
Common Stock |
171K |
$35.13 |
Direct |
F5 |
| transaction |
AMPH |
Employee Stock Option (right to buy) |
Award |
$0 |
+72.3K |
|
$0.00 |
72.3K |
06 Mar 2023 |
Common Stock |
72.3K |
$35.13 |
See footnote |
F2, F5 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Explanation of Responses: