0001104659-23-099294.txt : 20230908 0001104659-23-099294.hdr.sgml : 20230908 20230908160831 ACCESSION NUMBER: 0001104659-23-099294 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230906 FILED AS OF DATE: 20230908 DATE AS OF CHANGE: 20230908 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: 231245360 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 tm2325705-1_4seq1.xml OWNERSHIP DOCUMENT X0508 4 2023-09-06 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 2023-09-06 4 M 0 10000 19.79 A 115603 D Common Stock 2023-09-06 4 M 0 21250 20.23 A 136853 D Common Stock 2023-09-06 4 M 0 25250 13.03 A 162103 D Common Stock 2023-09-06 4 S 0 60684 51.7453 D 101419 D Common Stock 2023-09-06 4 S 0 59 52.2606 D 101360 D Employee Stock Option (right to buy) 19.79 2023-09-06 4 M 0 10000 0 D 2028-03-15 Common Stock 10000 5053 D Employee Stock Option (right to buy) 20.23 2023-09-06 4 M 0 21250 0 D 2029-03-15 Common Stock 21250 36475 D Employee Stock Option (right to buy) 13.03 2023-09-06 4 M 0 25250 0 D 2030-03-16 Common Stock 25250 69100 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 $51.26 to $52.24, 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 $52.26 to $52.265, inclusive. Shares subject to the option are fully vested and immediately exercisable. Shares subject to the option vest in four equal annual installments beginning on March 16, 2021. /s/ William J. Peters 2023-09-08