• OrbiMed Advisors reported selling 115,844 Sionna Therapeutics common shares on June 30, 2026 at USD 45.5.
• Stake fell to 2,555,877 shares held indirectly following the sale.

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. Sionna Therapeutics 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: 0000947871-26-000683), on July 02, 2026, and is solely responsible for the information contained therein.