0001104659-18-072627.txt : 20181212 0001104659-18-072627.hdr.sgml : 20181212 20181212203922 ACCESSION NUMBER: 0001104659-18-072627 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20181211 FILED AS OF DATE: 20181212 DATE AS OF CHANGE: 20181212 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Koo Richard CENTRAL INDEX KEY: 0001611219 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36509 FILM NUMBER: 181232024 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 a4.xml 4 X0306 4 2018-12-11 0 0001297184 Amphastar Pharmaceuticals, Inc. AMPH 0001611219 Koo Richard C/O AMPHASTAR PHARMACEUTICALS, INC. 11570 6TH STREET RANCHO CUCAMONGA CA 91730 1 0 0 0 Common Stock 2018-12-11 4 M 0 29278 14.66 A 271206 D Common Stock 2018-12-11 4 S 0 29278 21.3155 D 241928 D Common Stock 10000 I See footnote Stock Option (right to buy) 14.66 2018-12-11 4 M 0 29278 0 D 2018-12-20 Common Stock 29278 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.06 to $21.66, 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. The reported shares are held directly by Richard Y. Koo, a sole proprietorship, for which the Reporting Person is the sole owner. Shares subject to the option are fully vested and immediately exercisable. /s/ Eva Wen, by power of attorney 2018-12-12