0001104659-18-039450.txt : 20180611 0001104659-18-039450.hdr.sgml : 20180611 20180611201149 ACCESSION NUMBER: 0001104659-18-039450 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180607 FILED AS OF DATE: 20180611 DATE AS OF CHANGE: 20180611 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PRINS RICHARD K CENTRAL INDEX KEY: 0001047579 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 18893299 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 a4.xml 4 X0306 4 2018-06-07 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001047579 PRINS RICHARD K C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 0 0 0 Common Stock 2018-06-07 4 A 0 6590 0 A 35434 D Stock Option (right to buy) 16.69 2018-06-07 4 A 0 16679 0 A 2026-06-07 Common Stock 16679 16679 D The reported shares are represented by restricted stock units, or RSUs, which vest in two equal annual installments beginning on June 7, 2019. Shares subject to the option vest in two equal annual installments beginning on June 7, 2019. /s/ Eva Wen, by power of attorney 2018-06-11