Sionna Therapeutics (SION) Shares Outstanding (2024 - 2026)

Sionna Therapeutics has disclosed Shares Outstanding across 3 years of filings, most recently posting $45.1 million for Q1 2026.

• Shares Outstanding for Q1 2026 came in at $45.1 million, up 2.23% year-over-year; the trailing twelve-month figure through Mar 2026 was $45.1 million (up 2.23% YoY), and the FY2025 annual result was $44.7 million, up 846.98% from the prior year.
• Shares Outstanding came in at $45.1 million for Q1 2026 at Sionna Therapeutics, up from $44.7 million in the prior quarter.
• In the past five years, Shares Outstanding ranged from a high of $45.1 million in Q1 2026 to a low of $3.1 million in Q1 2024.
• The 3-year median for Shares Outstanding is $44.1 million (2025), against an average of $26.5 million.
• Across the five-year window, Shares Outstanding jumped 1321.01% in 2025 and gained 2.23% in 2026, its largest moves.
• Sionna Therapeutics' Shares Outstanding stood at $4.7 million in 2024, then jumped by 846.98% to $44.7 million in 2025, then gained by 0.79% to $45.1 million in 2026.
• The last three Shares Outstanding figures came in at $45.1 million (Q1 2026), $44.7 million (Q4 2025), and $44.5 million (Q3 2025), per Business Quant data.