11570 SIXTH STREET, RANCHO CUCAMONGA, CA
Reports Financial Results for the Three Months Ended June 30, 2026
Board Appointment - Anthony Pierce Joins Amphastar Pharmaceuticals Board
Other Events
Stockholder Vote Results; Election of Directors and Auditor Ratification
Reports Financial Results for the Three Months Ended March 31, 2026
Annual Report to Security Holders
Changes in Board, Management or Compensation
Q2
Q1
FY 2025
Q3
FY 2024
Registration Statement for Securities to be Offered to Employees
Effectiveness Notice
Registration Statement for Securities Offered under a Shelf Registration
Additional Proxy Materials
Definitive Proxy Statement
PRE 14A
Statement of Changes in Beneficial Ownership
Notice of Proposed Sale of Securities
Schedule 13G - Ownership Report
Correspondence
Submission Upload
Confidential Treatment Order