0001104659-22-062177.txt : 20220517 0001104659-22-062177.hdr.sgml : 20220517 20220517194652 ACCESSION NUMBER: 0001104659-22-062177 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220516 FILED AS OF DATE: 20220517 DATE AS OF CHANGE: 20220517 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ZASLOFF MICHAEL A CENTRAL INDEX KEY: 0001033511 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 22936592 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 tm2215857-1_4seq1.xml OWNERSHIP DOCUMENT X0306 4 2022-05-16 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001033511 ZASLOFF MICHAEL A C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 0 0 0 Common Stock 2022-05-16 4 M 0 10291 17.11 A 57497 D Common Stock 2022-05-16 4 S 0 10291 35.6136 D 47206 D Stock Option (right to buy) 17.11 2022-05-16 4 M 0 10291 0 D 2022-06-08 Common Stock 10291 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.591 to $35.80, inclusive. The reporting person undertakes to provide 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 2022-05-17