0000899243-16-016861.txt : 20160329 0000899243-16-016861.hdr.sgml : 20160329 20160329193135 ACCESSION NUMBER: 0000899243-16-016861 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20160326 FILED AS OF DATE: 20160329 DATE AS OF CHANGE: 20160329 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 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: 161536723 MAIL ADDRESS: STREET 1: 11570 6TH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2016-03-26 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001611283 Gerst Diane G. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 0 1 0 0 EVP, QA & Regulatory Affairs Common Stock 2016-03-26 4 F 0 614 11.96 D 32244 D The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of deferred stock units, or DSUs. /s/ Ken Stupak, by power of attorney 2016-03-29