0001973141-23-000272.txt : 20231101 0001973141-23-000272.hdr.sgml : 20231101 20231101160801 ACCESSION NUMBER: 0001973141-23-000272 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231101 DATE AS OF CHANGE: 20231101 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: 231368267 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: Petersen Floyd F. CENTRAL INDEX KEY: 0001611286 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 11570 6TH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 144 1 primary_doc.xml 144 0001611286 XXXXXXXX LIVE 0001297184 Amphastar Pharmaceuticals, Inc. 001-36509 11570 SIXTH STREET RANCHO CUCAMONGA CA 91730 909-980-9484 Petersen Floyd F. Director Common UBS Financial Services, Inc.

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

500 22605.00 48855602 11/01/2023 NASDAQ Common 06/08/2021 RSU Issuer N 351 06/08/2021 N/A Common 05/18/2022 ESOP Issuer N 149 05/18/2022 N/A N Floyd Petersen

11570 SIXTH STREET RANCHO CUCAMONGA CA 91730

Common 10/02/2023 500 22889.55 11/01/2023 06/13/2023 /s/ UBS Financial Services Inc, as attorney-in-fact for Floyd Petersen