Rong Zhou - Dec 12, 2024 Form 4 Insider Report for Amphastar Pharmaceuticals, Inc. (AMPH)

Role
SENIOR EVP, PRODUCTION CENTER
Signature
/s/ Eva Wen, by power of attorney
Stock symbol
AMPH
Transactions as of
Dec 12, 2024
Transactions value $
-$502,865
Form type
4
Date filed
12/16/2024, 05:22 PM
Previous filing
Nov 13, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Options Exercise $79.3K +7K +5.91% $11.33 125K Dec 12, 2024 Direct F1
transaction AMPH Common Stock Sale -$311K -7K -5.58% $44.43 118K Dec 12, 2024 Direct
transaction AMPH Common Stock Options Exercise $90.6K +8K +6.75% $11.33 126K Dec 13, 2024 Direct
transaction AMPH Common Stock Sale -$362K -8K -6.33% $45.23 118K Dec 13, 2024 Direct
holding AMPH Common Stock 99.7K Dec 12, 2024 See footnote F2
holding AMPH Common Stock 5K Dec 12, 2024 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 -7K -28.24% $0.00 17.8K Dec 12, 2024 Common Stock 7K $11.33 Direct F4
transaction AMPH Employee Stock Option (right to buy) Options Exercise $0 -8K -44.98% $0.00 9.79K Dec 13, 2024 Common Stock 8K $11.33 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 81 shares acquired under the Issuer's 2014 Employee Stock Purchase Plan on November 30, 2024.
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.