Rong Zhou - Mar 4, 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
Mar 4, 2024
Transactions value $
$0
Form type
4
Date filed
3/6/2024, 05:51 PM
Previous filing
Dec 5, 2023
Next filing
Mar 8, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Srock Award $0 +12.5K +11.14% $0.00 125K Mar 4, 2024 Direct F1
holding AMPH Common Stock 99.7K Mar 4, 2024 See footnote F2
holding AMPH Common Stock 5K Mar 4, 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) Award $0 +26.4K $0.00 26.4K Mar 4, 2024 Common Stock 26.4K $46.68 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reported shares are represented by restricted stock units, or RSUs, which vest in four equal annual installments beginning on March 4, 2025.
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 The shares subject to the option vest in four equal annual installments beginning on March 4, 2025.