0001104659-24-003050.txt : 20240110 0001104659-24-003050.hdr.sgml : 20240110 20240110182718 ACCESSION NUMBER: 0001104659-24-003050 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240108 FILED AS OF DATE: 20240110 DATE AS OF CHANGE: 20240110 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: 24527562 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: 24527563 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 tm241836-2_4seq1.xml OWNERSHIP DOCUMENT X0508 4 2024-01-08 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001611156 Luo Mary Z. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 1 1 0 COO,Chief Scientist & Chairman 0001611157 Zhang Jack Y. C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 1 1 0 CEO & Chief Scientific Officer 1 Common Stock 2024-01-08 4 S 0 18858 56.9818 D 1436744 D Common Stock 2024-01-08 4 S 0 41282 58.2451 D 1395462 D Common Stock 2024-01-08 4 S 0 37865 59.2405 D 1357597 D Common Stock 2024-01-08 4 S 0 27563 59.9943 D 1330034 D Common Stock 2024-01-08 4 S 0 4261 61.1927 D 1325773 D Common Stock 2024-01-08 4 S 0 1663 61.8064 D 1324110 D Common Stock 2024-01-08 4 S 0 2152 63.2662 D 1321958 D Common Stock 2024-01-09 4 S 0 50678 56.7039 D 1271280 D Common Stock 2024-01-09 4 S 0 31764 57.7028 D 1239516 D Common Stock 2024-01-09 4 S 0 3714 58.3521 D 1235802 D Common Stock 2078718 I See footnote Common Stock 6827679 I See footnote Common Stock 5000 I See footnote The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2023. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.57 to $57.555, 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) through (11) 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 $57.60 to $58.59, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.61 to $59.60, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.61 to $60.595, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.625 to $61.595, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.65 to $62.42, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.08 to $63.395, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.15 to $57.14, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.15 to $58.14, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.15 to $58.64, inclusive. The securities are held of record by Jack Y. Zhang. 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 by 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 Mary Z. Luo 2024-01-10 /s/ Eva Wen, by power of attorney for Jack Y. Zhang 2024-01-10