0001104659-23-062799.txt : 20230519 0001104659-23-062799.hdr.sgml : 20230519 20230519183625 ACCESSION NUMBER: 0001104659-23-062799 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230518 FILED AS OF DATE: 20230519 DATE AS OF CHANGE: 20230519 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Zhou Rong CENTRAL INDEX KEY: 0001645326 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 23941951 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] 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 tm2315996-6_4seq1.xml OWNERSHIP DOCUMENT X0407 4 2023-05-18 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001645326 Zhou Rong C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 0 1 0 0 EVP, Production Center 0 Common Stock 2023-05-18 4 M 0 10000 14.40 A 97598 D Common Stock 2023-05-18 4 S 0 10000 44.205 D 87598 D Common Stock 99668 I See footnote Common Stock 5000 I See footnote Employee Stock Option (right to buy) 14.40 2023-05-18 4 M 0 10000 0 D 2024-04-14 Common Stock 10000 22891 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.97 to $44.44, inclusive. The reporting person undertakes to provide to 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. 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. Shares subject to the option are fully vested and immediately exercisable. /s/ Eva Wen, by power of attorney 2023-05-19