0001104659-23-119090.txt : 20231116 0001104659-23-119090.hdr.sgml : 20231116 20231116160515 ACCESSION NUMBER: 0001104659-23-119090 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231114 FILED AS OF DATE: 20231116 DATE AS OF CHANGE: 20231116 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: PETERS WILLIAM J CENTRAL INDEX KEY: 0001263136 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 231414596 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] 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 tm2330835-3_4seq1.xml OWNERSHIP DOCUMENT X0508 4 2023-11-14 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001263136 PETERS WILLIAM J C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 1 0 0 CFO, EVP & Treasurer 1 Common Stock 2023-11-14 4 M 0 21250 20.23 A 122610 D Common Stock 2023-11-14 4 M 0 38000 13.03 A 160610 D Common Stock 2023-11-14 4 S 0 14220 54.7626 D 146390 D Common Stock 2023-11-14 4 S 0 30162 55.6728 D 116228 D Common Stock 2023-11-14 4 S 0 14868 56.534 D 101360 D Employee Stock Option (right to buy) 20.23 2023-11-14 4 M 0 21250 0 D 2029-03-15 Common Stock 21250 15225 D Employee Stock Option (right to buy) 13.03 2023-11-14 4 M 0 38000 0 D 2030-03-16 Common Stock 38000 31100 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 $54.15 to $55.145, 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), (3) and (4) 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 $55.16 to $56.15, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.17 to $56.81, inclusive. Shares subject to the option are fully vested and immediately exercisable. /s/ William J Peters 2023-11-16