Sionna Therapeutics (SION) Shares Outstanding (Diluted Average) (2024 - 2026)
Quarterly results put Shares Outstanding (Diluted Average) at $44.9 million for Q1 2026, up 68.9% from a year ago — trailing twelve months through Mar 2026 was $44.9 million (up 68.9% YoY), and the annual figure for FY2025 was $40.0 million, up 935.6%.
Sionna Therapeutics has reported Shares Outstanding (Diluted Average) over the past 3 years, most recently at $44.9 million for Q1 2026.
- Shares Outstanding (Diluted Average) reached $44.9 million in Q1 2026 per SION's latest filing, up from $40.0 million in the prior quarter.
- Across five years, Shares Outstanding (Diluted Average) topped out at $44.9 million in Q1 2026 and bottomed at $3.1 million in Q1 2024.
- Median Shares Outstanding (Diluted Average) over the past 3 years was $26.6 million (2025), compared with a mean of $22.8 million.
- The largest annual shift saw Shares Outstanding (Diluted Average) soared 1136.38% in 2025 before it skyrocketed 68.9% in 2026.
- Over 3 years, Shares Outstanding (Diluted Average) stood at $3.9 million in 2024, then soared by 935.6% to $40.0 million in 2025, then grew by 12.41% to $44.9 million in 2026.
- Business Quant data shows Shares Outstanding (Diluted Average) for SION at $44.9 million in Q1 2026, $40.0 million in Q4 2025, and $44.3 million in Q3 2025.
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares (Diluted Avg.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Quantum Biopharma | 1,384,976.65 Bn | 1,384,976.64 Bn | - | 3.06 Mn |
| 2 | Alterity Therapeutics | 777,208.84 Bn | 777,208.81 Bn | - | - |
| 3 | Legend Biotech | 2,801.00 Bn | 2,800.10 Bn | 242.10 Mn | 810.00 |
| 4 | Nanobiotix | 2,226.01 Bn | 2,225.95 Bn | - | - |
| 5 | Akari Therapeutics | 605.66 Bn | 605.66 Bn | - | 118.76 Bn |
| 6 | Vertex Pharmaceuticals | 110.17 Bn | 102.92 Bn | 2.59 Bn | 256.30 Mn |
| 7 | Regeneron Pharmaceuticals | 66.86 Bn | 58.11 Bn | 3.31 Bn | 107.70 Mn |
| 8 | Evaxion A | 65.12 Bn | 65.10 Bn | - | - |
| 9 | Alnylam Pharmaceuticals | 39.94 Bn | 36.94 Bn | 959.66 Mn | 138.23 Mn |
| 10 | Sionna Therapeutics | 1.87 Bn | 1.87 Bn | - | 44.92 Mn |
Historic Data
Download Data| Date | Value |
|---|---|
| Mar 31, 2026 | 44.92 Mn |
| Dec 31, 2025 | 39.96 Mn |
| Sep 30, 2025 | 44.26 Mn |
| Jun 30, 2025 | 35.40 Mn |
| Mar 31, 2025 | 26.60 Mn |
| Dec 31, 2024 | 3.86 Mn |
| Sep 30, 2024 | 3.58 Mn |
| Jun 30, 2024 | 3.16 Mn |
| Mar 31, 2024 | 3.08 Mn |