0001104659-22-079289.txt : 20220712 0001104659-22-079289.hdr.sgml : 20220712 20220712193850 ACCESSION NUMBER: 0001104659-22-079289 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220711 FILED AS OF DATE: 20220712 DATE AS OF CHANGE: 20220712 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Gerst Diane G. CENTRAL INDEX KEY: 0001611283 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 221079964 MAIL ADDRESS: STREET 1: 11570 6TH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Amphastar Pharmaceuticals, Inc. CENTRAL INDEX KEY: 0001297184 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 330702205 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 11570 SIXTH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 BUSINESS PHONE: 909-980-9484 MAIL ADDRESS: STREET 1: 11570 SIXTH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 4 1 tm2220904-1_4seq1.xml OWNERSHIP DOCUMENT X0306 4 2022-07-11 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001611283 Gerst Diane G. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 0 0 0 Common Stock 2022-07-11 4 M 0 1521 20.08 A 14363 D Common Stock 2022-07-11 4 S 0 1521 36.2557 D 12842 D Stock Option (right to buy) 20.08 2022-07-11 4 M 0 1521 0 D 2028-06-08 Common Stock 1521 2856 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2022. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.81 to $36.435, 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. Shares subject to the option are fully vested and immediately exercisable. /s/ Eva Wen, by power of attorney 2022-07-12