• Regenxbio director Kenneth T. Mills resigned on October 14, 2026, effective October 21, 2026.
• The board appointed independent director George Migausky as chairman in connection with Mills' departure.
• Daniel Tassé stepped down as lead independent director because the new chairman is independent.

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. Regenxbio 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: 0001193125-26-423376), on October 16, 2026, and is solely responsible for the information contained therein.