0001104659-22-032022.txt : 20220309 0001104659-22-032022.hdr.sgml : 20220309 20220309160612 ACCESSION NUMBER: 0001104659-22-032022 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220307 FILED AS OF DATE: 20220309 DATE AS OF CHANGE: 20220309 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PETERS WILLIAM J CENTRAL INDEX KEY: 0001263136 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 22725431 MAIL ADDRESS: STREET 1: C/O AMPHASTAR PHARMACEUTICALS, INC. STREET 2: 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 tm227973-4_4seq1.xml OWNERSHIP DOCUMENT X0306 4 2022-03-07 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001263136 PETERS WILLIAM J C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 0 1 0 0 CFO, EVP & Treasurer Common Stock 2022-03-07 4 M 0 13026 13.35 A 119068 D Common Stock 2022-03-07 4 S 0 13026 29.35 D 106042 D Employee Stock Option (right to buy) 13.35 2022-03-07 4 M 0 13026 0 D 2027-03-16 Common Stock 13026 59522 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 7, 2021. Shares subject to the option are fully vested and immediately exercisable. /s/ William J. Peters 2022-03-09