Rong Zhou - Mar 16, 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
Mar 16, 2023
Transactions value $
-$154,828
Form type
4
Date filed
3/20/2023, 08:04 PM
Previous filing
Mar 17, 2023
Next filing
May 19, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Tax liability -$85.8K -2.28K -2.49% $37.60 89.5K Mar 16, 2023 Direct F1
transaction AMPH Common Stock Tax liability -$69K -1.9K -2.12% $36.29 87.6K Mar 17, 2023 Direct F1
holding AMPH Common Stock 99.7K Mar 16, 2023 See footnote F2
holding AMPH Common Stock 5K Mar 16, 2023 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 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.