Blackwell Partners LLC - Series A Sells Sionna Therapeutics Common Stock

Blackwell Partners LLC - Series A has filed a Form 144 with the SEC, indicating the intent to sell 104,476 shares of Sionna Therapeutics, Inc. common stock. The shares were acquired on September 18, 2020, through a private transaction. The approximate sale date is set for October 28, 2025, with an aggregate market value of $413,278.20. Additionally, Blackwell Partners LLC - Series A recently sold 107,941 shares of Sionna Therapeutics common stock on October 24, 2025, for a total of $4,263,669.50. The filing also includes details about the broker involved, BTIG, LLC, and the relationship of Blackwell Partners LLC - Series A to Sionna Therapeutics, which includes being a director and a 10% stockholder.