-
Signature
-
/s/ Eva Wen, by power of attorney
-
Stock symbol
-
AMPH
-
Transactions as of
-
Apr 13, 2023
-
Transactions value $
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-$245,224
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Form type
-
4
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Date filed
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4/14/2023, 05:50 PM
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
AMPH |
Common Stock |
Options Exercise |
$233K |
+11.5K |
+16.61% |
$20.23 |
80.7K |
Apr 13, 2023 |
Direct |
|
| transaction |
AMPH |
Common Stock |
Sale |
-$205K |
-5K |
-6.2% |
$41.00 |
75.7K |
Apr 13, 2023 |
Direct |
F1 |
| transaction |
AMPH |
Common Stock |
Sale |
-$273K |
-6.49K |
-8.58% |
$42.00 |
69.2K |
Apr 13, 2023 |
Direct |
F1 |
| holding |
AMPH |
Common Stock |
|
|
|
|
|
2.46K |
Apr 13, 2023 |
See footnote |
F2 |
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) |
Options Exercise |
$0 |
-11.5K |
-67.65% |
$0.00 |
5.5K |
Apr 13, 2023 |
Common Stock |
11.5K |
$20.23 |
Direct |
F3 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
Explanation of Responses: