Rong Zhou - May 18, 2023 Form 4 Insider Report for Amphastar Pharmaceuticals, Inc. (AMPH)

Role
EVP, Production Center
Signature
/s/ Eva Wen, by power of attorney
Stock symbol
AMPH
Transactions as of
May 18, 2023
Transactions value $
-$298,050
Form type
4
Date filed
5/19/2023, 06:36 PM
Previous filing
Mar 20, 2023
Next filing
Jun 14, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Options Exercise $144K +10K +11.42% $14.40 97.6K May 18, 2023 Direct
transaction AMPH Common Stock Sale -$442K -10K -10.25% $44.21 87.6K May 18, 2023 Direct F1
holding AMPH Common Stock 99.7K May 18, 2023 See footnote F2
holding AMPH Common Stock 5K May 18, 2023 See footnote F3

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 -10K -30.4% $0.00 22.9K May 18, 2023 Common Stock 10K $14.40 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.97 to $44.44, 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.
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.
F4 Shares subject to the option are fully vested and immediately exercisable.