0001415889-24-007106.txt : 20240306 0001415889-24-007106.hdr.sgml : 20240306 20240306182928 ACCESSION NUMBER: 0001415889-24-007106 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240304 FILED AS OF DATE: 20240306 DATE AS OF CHANGE: 20240306 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Luo Mary Z. CENTRAL INDEX KEY: 0001611156 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 24727549 MAIL ADDRESS: STREET 1: 11570 6TH STREET CITY: RANCHO CUCAMONGA STATE: CA ZIP: 91730 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Zhang Jack Y. CENTRAL INDEX KEY: 0001611157 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 24727550 MAIL ADDRESS: STREET 1: 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 form4-03062024_110321.xml X0508 4 2024-03-04 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001611157 Zhang Jack Y. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 true true true false CEO & CHIEF SCIENTIFIC OFFICER 0001611156 Luo Mary Z. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 1 1 0 COO, Chief Scientist, Chairman 0 Common Stock 2024-03-04 4 A 0 64310 0 A 2143028 D Common Stock 2024-03-04 4 A 0 27110 0 A 1131526 I See footnote Common Stock 6827679 I See footnote Common Stock 0 I See footnote Employee Stock Option (right to buy) 46.68 2024-03-04 4 A 0 135473 0 A 2034-03-04 Common Stock 135473 135473 D Employee Stock Option (right to buy) 46.68 2024-03-04 4 A 0 57109 0 A 2034-03-04 Common Stock 57109 57109 I See footnote The reported shares are represented by restricted stock units, or RSUs, which vest in four equal annual installments beginning on March 4, 2025. The securities are held of record by Mary Z. Luo. The reporting persons are husband and wife. The shares are held of record by Applied Physics and Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners. Excludes 5,000 shares previously reported as held of record by the reporting persons' son. The reporting persons' do not beneficially own and have no pecuniary interest in these shares. The shares subject to the option vest in four equal annual installments beginning on March 4, 2025. /s/ Eva Wen, by power of attorney for Jack Y. Zhang 2024-03-06 /s/ Eva Wen, by power of attorney for Mary Z. Luo 2024-03-06