Sionna Therapeutics, Inc. (SION): Shares Outstanding

Annual figures by period end, from SEC filings.

44.72M

As of 2025-12-31

45.16M

As of 2026-06-30

2024-12-31 Shares Outstanding (shares) 2025-12-31

Period ended	Shares Outstanding	Change YoY	Source filing
2025-12-31	44.72M	+847.0%	2026-03-02, Balance as of period end
2024-12-31	4.72M	n/a	2026-03-02, Balance as of period end