• Avantor director Simon Dingemans reported a purchase of 25,000 common shares at USD 8.14, held indirectly by spouse.
• Directly held common shares totaled 6,225 following the filing.

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. Avantor 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: 0001628280-26-030826), on May 05, 2026, and is solely responsible for the information contained therein.