Blackwell Partners LLC - Series A Plans to Sell Common Shares of Sionna Therapeutics, Inc.

Blackwell Partners LLC - Series A, a 10% stockholder and director of Sionna Therapeutics, Inc., has filed a Form 144 with the SEC indicating its intent to sell 107,941 common shares of Sionna Therapeutics. The shares were acquired on September 18, 2020, through a private transaction. The approximate sale date is set for October 24, 2025, with an aggregate market value of $4,232,366.61. The sale will be facilitated by BTIG, LLC. The filing also confirms that there have been no sales of securities by Blackwell Partners LLC - Series A in the past three months.