Rong Zhou - Feb 25, 2022 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
Feb 25, 2022
Transactions value $
-$304,577
Form type
4
Date filed
3/1/2022, 03:07 PM
Previous filing
Feb 9, 2022
Next filing
Mar 17, 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Options Exercise $76.5K +7K +9.14% $10.93 83.6K Feb 25, 2022 Direct
transaction AMPH Common Stock Sale -$381K -13.2K -15.85% $28.77 70.3K Feb 25, 2022 Direct F1
holding AMPH Common Stock 99.7K Feb 25, 2022 See footnote F2
holding AMPH Common Stock 5K Feb 25, 2022 See footnote F3

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 -7K -100% $0.00* 0 Feb 25, 2022 Common Stock 7K $10.93 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2021.
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.
F4 Shares subject to the option are fully vested and immediately exercisable.

Remarks:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).