Jack Y. Zhang - 15 Mar 2022 Form 4 Insider Report for Amphastar Pharmaceuticals, Inc. (AMPH)

Signature
/s/ Eva Wen, by power of attorney for Jack Y. Zhang
Issuer symbol
AMPH
Transactions as of
15 Mar 2022
Net transactions value
-$678,993
Form type
4
Filing time
17 Mar 2022, 17:05:38 UTC
Next filing
18 Mar 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Award $0 +76,914 +3.3% $0.000000 2,397,782 15 Mar 2022 Direct F1
transaction AMPH Common Stock Tax liability $512,728 -14,759 -0.62% $34.74 2,383,023 15 Mar 2022 Direct F2
transaction AMPH Common Stock Award $0 +32,412 +2.2% $0.000000 1,520,783 15 Mar 2022 See footnote F1, F3
transaction AMPH Common Stock Tax liability $166,266 -4,786 -0.31% $34.74 1,515,997 15 Mar 2022 See footnote F2, F3
holding AMPH Common Stock 6,827,679 15 Mar 2022 See footnote F4
holding AMPH Common Stock 5,000 15 Mar 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 +177,461 $0.000000 177,461 15 Mar 2022 Common Stock 177,461 $34.74 Direct F6
transaction AMPH Employee Stock Option (right to buy) Award $0 +74,784 $0.000000 74,784 15 Mar 2022 Common Stock 74,784 $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.