Jack Y. Zhang - Mar 15, 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 15, 2024
Transactions value $
-$14,431,386
Form type
4
Date filed
3/19/2024, 06:55 PM
Previous filing
Mar 8, 2024
Next filing
Jun 11, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Options Exercise $9M +722K +33.8% $12.46* 2.86M Mar 15, 2024 Direct
transaction AMPH Common Stock Tax liability -$17.6M -409K -14.3% $43.05 2.45M Mar 15, 2024 Direct F1
transaction AMPH Common Stock Tax liability -$679K -15.8K -0.64% $43.05 2.43M Mar 17, 2024 Direct F2
transaction AMPH Common Stock Options Exercise $3.87M +311K +27.55% $12.46* 1.44M Mar 15, 2024 See footnote F3
transaction AMPH Common Stock Tax liability -$8.72M -203K -14.08% $43.05 1.24M Mar 15, 2024 See footnote F3, F4
transaction AMPH Common Stock Tax liability -$304K -7.05K -0.57% $43.05 1.23M Mar 17, 2024 See footnote F2, F3
holding AMPH Common Stock 6.83M Mar 15, 2024 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) Options Exercise $0 -722K -100% $0.00* 0 Mar 15, 2024 Common Stock 722K $12.46 Direct F6
transaction AMPH Employee Stock Option (right to buy) Options Exercise $0 -311K -100% $0.00* 0 Mar 15, 2024 Common Stock 311K $12.46 See footnote F3, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Consists of 399,187 shares withheld to pay the exercise price and withholding taxes incurred in connection with the exercise of 622,046 options and 9,534 shares withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
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 Consists of 198,640 shares withheld to pay the exercise price and withholding taxes incurred in connection with the option exercise and 4,018 shares withheld to satisfy the reporting person's tax liability in connection with the vesting of RSUs.
F5 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.
F6 Shares subject to the option are fully vested and immediately exercisable.