Institutional Ownership
Sionna Therapeutics Inc
CUSIP 829401108COMSIONQ1 2026
Shares Short
5.26M
As of Jul 15, 2026
Days to Cover
11.51
Short shares ÷ avg daily volume
Change vs Prior
-4.8%
vs previous settlement
Avg Daily Volume
456.8K
FINRA reported ADV
Short Interest History
17 settlements on record · FINRA consolidated
Higher short interest is bearish: increases show red, decreases green.
| Settlement | Shares Short | Prior | Change | Avg Daily Vol | Days to Cover |
|---|---|---|---|---|---|
| Jul 15, 2026 | 5.26M | 5.52M | -4.8% | 456.8K | 11.51 |
| Jun 30, 2026 | 5.52M | 5.00M | +10.5% | 544.4K | 10.14 |
| Jun 15, 2026 | 5.00M | 4.64M | +7.7% | 360.2K | 13.87 |
| May 29, 2026 | 4.64M | 4.74M | -2.1% | 319.2K | 14.53 |
| May 15, 2026 | 4.74M | 4.23M | +12.1% | 421.4K | 11.25 |
| Apr 30, 2026 | 4.23M | 3.80M | +11.3% | 455.4K | 9.29 |
| Apr 15, 2026 | 3.80M | 3.76M | +1.1% | 446.3K | 8.51 |
| Mar 31, 2026 | 3.76M | 3.54M | +6.0% | 332.8K | 11.29 |
| Mar 13, 2026 | 3.54M | 3.35M | +5.8% | 287.3K | 12.34 |
| Feb 27, 2026 | 3.35M | 3.06M | +9.3% | 143.4K | 23.36 |
| Feb 13, 2026 | 3.06M | 3.14M | -2.5% | 407.2K | 7.53 |
| Jan 30, 2026 | 3.14M | 3.05M | +2.9% | 231.9K | 13.55 |