Sionna Therapeutics, Inc. 8-K

What Happened
Sionna Therapeutics, Inc. (SION) filed a Form 8-K on May 12, 2026 to announce its financial results and business highlights for the three months ended March 31, 2026. The company furnished a press release dated May 12, 2026 as Exhibit 99.1 to the 8-K, which contains the full text of the quarterly results and related business updates.

Key Details

• Filing date: May 12, 2026 (Form 8-K, Item 2.02: Results of Operations and Financial Condition).
• Period covered: three months ended March 31, 2026 (Q1 2026 quarterly results).
• Press release: full text furnished as Exhibit 99.1 to the 8-K.
• Exhibit note: the filing also included the interactive cover page XBRL file (Inline XBRL).

Why It Matters
This 8-K signals that Sionna has publicly released its latest quarterly earnings, revenue and business highlights — key information investors use to evaluate near-term performance and clinical or commercial progress. The 8-K itself furnishes the press release but does not restate figures; retail investors should read Exhibit 99.1 (the May 12 press release) for specific revenue, expense, net loss/profit, guidance changes, or material operational updates before making investment decisions.