Jack Y. Zhang - Mar 4, 2025 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, 2025
Transactions value $
-$225,904
Form type
4
Date filed
3/6/2025, 04:16 PM
Previous filing
Nov 12, 2024
Next filing
Mar 10, 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Tax liability -$159K -5.75K -0.23% $27.62 2.5M Mar 4, 2025 Direct F1
transaction AMPH Common Stock Tax liability -$67K -2.43K -0.22% $27.62 1.1M Mar 4, 2025 See footnote F1, F2
holding AMPH Common Stock 6.83M Mar 4, 2025 See footnote F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
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.