Jack Y. Zhang - Mar 15, 2022 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 15, 2022
Transactions value $
-$678,993
Form type
4
Date filed
3/17/2022, 05:05 PM
Next filing
Mar 18, 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Award $0 +76.9K +3.31% $0.00 2.4M Mar 15, 2022 Direct F1
transaction AMPH Common Stock Tax liability -$513K -14.8K -0.62% $34.74 2.38M Mar 15, 2022 Direct F2
transaction AMPH Common Stock Award $0 +32.4K +2.18% $0.00 1.52M Mar 15, 2022 See footnote F1, F3
transaction AMPH Common Stock Tax liability -$166K -4.79K -0.31% $34.74 1.52M Mar 15, 2022 See footnote F2, F3
holding AMPH Common Stock 6.83M Mar 15, 2022 See footnote F4
holding AMPH Common Stock 5K Mar 15, 2022 See footnote F5

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 +177K $0.00 177K Mar 15, 2022 Common Stock 177K $34.74 Direct F6
transaction AMPH Employee Stock Option (right to buy) Award $0 +74.8K $0.00 74.8K Mar 15, 2022 Common Stock 74.8K $34.74 See footnote F3, F6
* 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 15, 2023.
F2 The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of RSUs.
F3 The securities are held of record by Mary Z. Luo. The reporting persons are husband and wife.
F4 The shares are held of record by Applied Physics & Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners.
F5 The shares are held of record in an account for the benefit of the reporting persons' son. The reporting persons disclaim beneficial ownership of these shares, and the inclusion of these shares in this report should not be deemed an admission of beneficial ownership of any such shares for purposes of Section 16, or for any other purpose.
F6 The shares subject to the option vest in four equal annual installments beginning on March 15, 2023.