WILLIAM J. PETERS - 15 Mar 2023 Form 4 Insider Report for Amphastar Pharmaceuticals, Inc. (AMPH)

Signature
/s/ William J. Peters
Issuer symbol
AMPH
Transactions as of
15 Mar 2023
Net transactions value
-$518,225
Form type
4
Filing time
17 Mar 2023, 19:03:06 UTC
Previous filing
08 Mar 2023
Next filing
20 Mar 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMPH Common Stock Options Exercise $99,986 +6,688 +5.4% $14.95 131,227 15 Mar 2023 Direct
transaction AMPH Common Stock Sale $465,472 -12,776 -9.7% $36.43 118,451 15 Mar 2023 Direct F1, F2
transaction AMPH Common Stock Tax liability $152,739 -4,146 -3.5% $36.84 114,305 15 Mar 2023 Direct 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 -6,688 -100% $0.000000* 0 15 Mar 2023 Common Stock 6,688 $14.95 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 May 18, 2022.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.12 to $36.78, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
F3 The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.
F4 Shares subject to the option are fully vested and immediately exercisable.