05:18 PM EDT, 10/17/2025 (MT Newswires) -- Michael Cloonan, Director, President & CEO, on Oct. 15 and Oct. 16, sold 25,200 shares in Sionna Therapeutics ( SION ) for $788,153. Following the Form 4 filing with the SEC, Cloonan has control over a total of 547,343 shares of the company, with 547,343 shares held directly.

SEC Filing:

https://www.sec.gov/Archives/edgar/data/2036042/000170433625000006/xslF345X05/edgardoc.xml