0001969223-23-000093.txt : 20230512 0001969223-23-000093.hdr.sgml : 20230512 20230512112255 ACCESSION NUMBER: 0001969223-23-000093 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230512 DATE AS OF CHANGE: 20230512 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 23914022 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: COMPANY DATA: COMPANY CONFORMED NAME: PRINS RICHARD K CENTRAL INDEX KEY: 0001047579 FILING VALUES: FORM TYPE: 144 144 1 primary_doc.xml 144 0001047579 XXXXXXXX LIVE 0001297184 AMPHASTAR PHARMACEUTICALS INC 001-36509 11570 SIXTH STREET RANCHO CUCAMONGA CA 91730 909-980-9484 Richard Prins Director Common stock UBS Financial Services Inc

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

10000 410680 48190000 05/12/2023 NASDAQ Common stock 05/12/2023 Option Exercise Issuer N 10000 05/12/2023 Cash Y 05/12/2023 /s/ UBS Financial Services Inc, as attorney-in-fact for Richard Prins