0001415889-24-007089.txt : 20240306 0001415889-24-007089.hdr.sgml : 20240306 20240306175148 ACCESSION NUMBER: 0001415889-24-007089 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240304 FILED AS OF DATE: 20240306 DATE AS OF CHANGE: 20240306 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Zhou Rong CENTRAL INDEX KEY: 0001645326 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 24727341 MAIL ADDRESS: STREET 1: C/O AMPHASTAR PHARMACEUTICALS INC. STREET 2: 11570 SIXTH 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] ORGANIZATION NAME: 03 Life Sciences 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 form4-03062024_100341.xml X0508 4 2024-03-04 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001645326 Zhou Rong C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 false true false false SENIOR EVP, PRODUCTION CENTER 0 Common Srock 2024-03-04 4 A 0 12521 0 A 124941 D Common Stock 99668 I See footnote Common Stock 5000 I See footnote Employee Stock Option (right to buy) 46.68 2024-03-04 4 A 0 26378 0 A 2034-03-04 Common Stock 26378 26378 D The reported shares are represented by restricted stock units, or RSUs, which vest in four equal annual installments beginning on March 4, 2025. The shares are held of record by the Zhou Family Trust for which the reporting person serves as a trustee. The shares are held of record by the reporting person's spouse. The shares subject to the option vest in four equal annual installments beginning on March 4, 2025. /s/ Eva Wen, by power of attorney 2024-03-06