LeonaBio files initial beneficial ownership statement for David J. Portman

• LeonaBio Form 3 showed David J. Portman filing as a 10% owner on Aug. 24, 2026.
• Report disclosed an indirect warrant position for 5,502,402 common shares, exercisable Oct. 26, 2026 at USD 0.001.
• Filing date was Sept. 3, 2026.

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. LeonaBio 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: 0002126186-26-000001), on September 03, 2026, and is solely responsible for the information contained therein.