0001415889-24-007367.txt : 20240308 0001415889-24-007367.hdr.sgml : 20240308 20240308165241 ACCESSION NUMBER: 0001415889-24-007367 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240306 FILED AS OF DATE: 20240308 DATE AS OF CHANGE: 20240308 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: 24735226 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 form4-03082024_090331.xml X0508 4 2024-03-06 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 2024-03-06 4 M 0 8826 11.33 A 129626 D Common Stock 2024-03-06 4 S 0 13404 46.2951 D 116222 D Common Stock 2024-03-06 4 S 0 4681 46.9762 D 111541 D Common Stock 2024-03-06 4 S 0 51 48 D 111490 D Common Stock 2024-03-06 4 F 0 2190 46.31 D 109300 D Employee Stock Option (right to buy) 11.33 2024-03-06 4 M 0 8826 0 D 2026-03-17 Common Stock 8826 0 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2023. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.79 to $46.78, 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 (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.795 to $47.47, inclusive. The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs. Shares subject to the option are fully vested and immediately exercisable. /s/ William J. Peters 2024-03-08