0001415889-24-018417.txt : 20240628 0001415889-24-018417.hdr.sgml : 20240628 20240628162652 ACCESSION NUMBER: 0001415889-24-018417 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240627 FILED AS OF DATE: 20240628 DATE AS OF CHANGE: 20240628 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PETERS WILLIAM J CENTRAL INDEX KEY: 0001263136 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 241086107 MAIL ADDRESS: STREET 1: C/O AMPHASTAR PHARMACEUTICALS, INC. STREET 2: 11570 6TH 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 form4-06282024_080649.xml X0508 4 2024-06-27 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001263136 PETERS WILLIAM J C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 true true false false CFO, EVP & TREASURER 1 Common Stock 2024-06-27 4 S 0 2961 40.8467 D 94738 D Common Stock 2024-06-27 4 S 0 635 41.2946 D 94103 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2024. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.20 to $41.12, 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 within the ranges set forth in footnotes (2) and (4) to this Form 4. Includes 431 shares acquired under the Issuer's 2014 Employee Stock Purchase Plan on May 31, 2024. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.22 to $41.36, inclusive. /s/ William J. Peters 2024-06-28