• Amphastar Pharmaceuticals Senior EVP, Production Center Zhou Rong sold 3,187 common shares on Sep. 2, 2026 at USD 23.63.
• Direct holdings fell to 169,203 common shares following the sale.
• Indirect holdings totaled 104,668 common shares, including 99,668 held in a family trust and 5,000 held by a spouse.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Amphastar Pharmaceuticals Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001645326-26-000012), on September 03, 2026, and is solely responsible for the information contained therein.