Jack Y. Zhang - Mar 4, 2024 Form 4 Insider Report for Amphastar Pharmaceuticals, Inc. (AMPH)

Role
CEO & CHIEF SCIENTIFIC OFFICER, Director, 10%+ Owner
Signature
/s/ Eva Wen, by power of attorney for Jack Y. Zhang
Stock symbol
AMPH
Transactions as of
Mar 4, 2024
Transactions value $
$0
Form type
4
Date filed
3/6/2024, 06:29 PM
Previous filing
Mar 20, 2023
Next filing
Mar 8, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Award $0 +64.3K +3.09% $0.00 2.14M Mar 4, 2024 Direct F1
transaction AMPH Common Stock Award $0 +27.1K +2.45% $0.00 1.13M Mar 4, 2024 See footnote F1, F2
holding AMPH Common Stock 6.83M Mar 4, 2024 See footnote F3
holding AMPH Common Stock 0 Mar 4, 2024 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 +135K $0.00 135K Mar 4, 2024 Common Stock 135K $46.68 Direct F5
transaction AMPH Employee Stock Option (right to buy) Award $0 +57.1K $0.00 57.1K Mar 4, 2024 Common Stock 57.1K $46.68 See footnote F2, F5
* 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 securities are held of record by Mary Z. Luo. The reporting persons are husband and wife.
F3 The shares are held of record by Applied Physics and Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners.
F4 Excludes 5,000 shares previously reported as held of record by the reporting persons' son. The reporting persons' do not beneficially own and have no pecuniary interest in these shares.
F5 The shares subject to the option vest in four equal annual installments beginning on March 4, 2025.