0001104659-23-034573.txt : 20230320 0001104659-23-034573.hdr.sgml : 20230320 20230320200227 ACCESSION NUMBER: 0001104659-23-034573 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230316 FILED AS OF DATE: 20230320 DATE AS OF CHANGE: 20230320 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Luo Mary Z. CENTRAL INDEX KEY: 0001611156 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 23747586 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 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 23747587 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] 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 tm239871-5_4seq1.xml OWNERSHIP DOCUMENT X0407 4 2023-03-16 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001611157 Zhang Jack Y. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA, CA 91730 1 1 1 0 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 2023-03-16 4 G 0 57365 0.00 D 0 I See footnote Common Stock 2023-03-16 4 G 0 57365 0.00 D 0 I See footnote Common Stock 2023-03-16 4 F 0 25241 37.60 D 2094486 D Common Stock 2023-03-16 4 F 0 9998 37.60 D 1462654 I See footnote Common Stock 2023-03-17 4 F 0 15768 36.29 D 2078718 D Common Stock 2023-03-17 4 F 0 7052 36.29 D 1455602 I See footnote Common Stock 6827679 I See footnote Common Stock 5000 I See footnote The shares are held of record by The Jack Y. Zhang 2020 GRAT dated February 7, 2020, Jack Y. Zhang trustee (the "Zhang GRAT"). On February 7, 2020, Dr. Zhang contributed 353,797 shares of directly held Issuer common stock to the Zhang GRAT for the benefit of himself and his three adult children (the "Distributees"). Pursuant to the terms of the Zhang GRAT, upon termination of the Zhang GRAT, 57,365 of the shares were distributed to Distributees. The remaining 296,431 shares representing annuity payments under the Zhang GRAT were previously distributed to Dr. Zhang and continue to be reported in this Form 4 as directly owned by Dr. Zhang. The shares are held of record by The Mary Z. Luo 2020 GRAT dated February 7, 2020, Mary Z. Luo trustee (the "Luo GRAT"). On February 7, 2020, Dr. Luo contributed 353,797 shares of directly held Issuer common stock to the Luo GRAT for the benefit of herself and her three adult children (the "Distributees"). Pursuant to the terms of the Luo GRAT, upon termination of the Luo GRAT, 57,365 of the shares were distributed to Distributees. The remaining 296,431 shares representing annuity payments under the Luo GRAT were previously distributed to Dr. Luo and continue to be reported in this Form 4 as directly owned by Dr. Luo. The reported shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs. Excludes 57,365 shares previously reported as held directly by Dr. Zhang as described in footnote (1) above. Excludes 57,365 shares previously reported as held directly by Dr. Luo as described in footnote (2) above. The securities are held of record by Dr. Luo. The reporting persons are husband and wife. The shares are held of record by Applied Physics & Chemistry Laboratories, Inc., of which the reporting persons and The Bill Luobei Zhang 2004 Irrevocable Trust are the sole owners. The shares are held of record in an account for the benefit of the reporting persons' son. The reporting persons disclaim beneficial ownership of these shares, and the inclusion of these shares in this report should not be deemed an admission of beneficial ownership of any such shares for purposes of Section 16, or for any other purpose. /s/ Eva Wen, by power of attorney for Jack Y. Zhang 2023-03-20 /s/ Eva Wen, by power of attorney for Mary Z. Luo 2023-03-20