Sionna Therapeutics, Inc. (SION)
NASDAQ: SION · Real-Time Price · USD
6.06
-0.11 (-1.78%)
At close: Aug 27, 2026, 4:00 PM EDT
6.03
-0.03 (-0.50%)
After-hours: Aug 27, 2026, 7:48 PM EDT
Sionna Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 27, 2026 | 6.14 | 6.25 | 5.97 | 6.06 | 6.06 | -1.78% | 770,707 |
| Aug 26, 2026 | 6.20 | 6.29 | 6.02 | 6.17 | 6.17 | -1.28% | 910,472 |
| Aug 25, 2026 | 5.60 | 6.30 | 5.58 | 6.25 | 6.25 | 11.81% | 1,965,833 |
| Aug 24, 2026 | 5.29 | 5.61 | 5.21 | 5.59 | 5.59 | 5.67% | 1,767,277 |
| Aug 21, 2026 | 5.54 | 5.72 | 5.27 | 5.29 | 5.29 | -4.17% | 1,909,721 |
| Aug 20, 2026 | 6.27 | 6.27 | 5.51 | 5.52 | 5.52 | -11.68% | 1,722,986 |
| Aug 19, 2026 | 6.09 | 6.28 | 5.88 | 6.25 | 6.25 | 5.22% | 1,851,554 |
| Aug 18, 2026 | 5.75 | 5.98 | 5.60 | 5.94 | 5.94 | 0.51% | 2,050,206 |
| Aug 17, 2026 | 6.47 | 6.80 | 5.82 | 5.91 | 5.91 | -8.51% | 2,892,144 |
| Aug 14, 2026 | 6.24 | 6.66 | 6.15 | 6.46 | 6.46 | -1.22% | 2,842,260 |
| Aug 13, 2026 | 6.29 | 6.75 | 6.05 | 6.54 | 6.54 | 4.64% | 5,394,649 |
| Aug 12, 2026 | 4.99 | 6.40 | 4.98 | 6.25 | 6.25 | 22.55% | 9,255,637 |
| Aug 11, 2026 | 4.51 | 5.49 | 4.49 | 5.10 | 5.10 | 13.33% | 14,736,303 |
| Aug 10, 2026 | 4.85 | 5.00 | 4.01 | 4.50 | 4.50 | -91.18% | 37,731,840 |
| Aug 7, 2026 | 50.86 | 54.97 | 49.30 | 51.04 | 51.04 | 2.88% | 747,527 |
| Aug 6, 2026 | 47.11 | 50.80 | 47.08 | 49.61 | 49.61 | 4.80% | 778,470 |
| Aug 5, 2026 | 50.20 | 51.91 | 46.92 | 47.34 | 47.34 | -5.21% | 757,882 |
| Aug 4, 2026 | 50.16 | 51.73 | 48.52 | 49.94 | 49.94 | 1.38% | 913,121 |
| Aug 3, 2026 | 46.86 | 49.49 | 45.57 | 49.26 | 49.26 | 4.52% | 509,031 |
| Jul 31, 2026 | 46.68 | 47.62 | 44.27 | 47.13 | 47.13 | 0.75% | 392,310 |
| Jul 30, 2026 | 44.69 | 47.28 | 44.64 | 46.78 | 46.78 | 4.40% | 353,250 |
| Jul 29, 2026 | 46.81 | 46.84 | 44.63 | 44.81 | 44.81 | -3.74% | 369,411 |
| Jul 28, 2026 | 45.41 | 46.69 | 44.11 | 46.55 | 46.55 | 2.58% | 320,288 |
| Jul 27, 2026 | 46.03 | 47.89 | 45.11 | 45.38 | 45.38 | -0.70% | 403,811 |
| Jul 24, 2026 | 44.31 | 46.40 | 43.41 | 45.70 | 45.70 | 3.72% | 654,939 |
| Jul 23, 2026 | 44.39 | 46.45 | 43.84 | 44.06 | 44.06 | -2.15% | 811,060 |
| Jul 22, 2026 | 46.92 | 47.71 | 44.23 | 45.03 | 45.03 | -4.62% | 562,855 |
| Jul 21, 2026 | 45.24 | 48.00 | 45.24 | 47.21 | 47.21 | 3.33% | 598,140 |
| Jul 20, 2026 | 50.20 | 51.57 | 44.78 | 45.69 | 45.69 | -7.53% | 816,701 |
| Jul 17, 2026 | 44.72 | 51.00 | 43.12 | 49.41 | 49.41 | 9.10% | 1,139,315 |
| Jul 16, 2026 | 44.17 | 48.22 | 43.47 | 45.29 | 45.29 | 2.05% | 1,096,320 |
| Jul 15, 2026 | 42.33 | 45.37 | 41.69 | 44.38 | 44.38 | 4.20% | 522,135 |
| Jul 14, 2026 | 44.24 | 45.01 | 42.39 | 42.59 | 42.59 | -3.09% | 275,951 |
| Jul 13, 2026 | 45.40 | 45.49 | 42.73 | 43.95 | 43.95 | -2.96% | 415,293 |
| Jul 10, 2026 | 44.90 | 45.41 | 42.24 | 45.29 | 45.29 | 0.78% | 370,997 |
| Jul 9, 2026 | 44.00 | 45.91 | 43.65 | 44.94 | 44.94 | 2.14% | 755,244 |
| Jul 8, 2026 | 44.48 | 46.98 | 43.29 | 44.00 | 44.00 | -2.07% | 573,836 |
| Jul 7, 2026 | 43.67 | 46.64 | 43.00 | 44.93 | 44.93 | 4.20% | 664,396 |
| Jul 6, 2026 | 44.01 | 44.38 | 42.39 | 43.12 | 43.12 | -1.98% | 255,812 |
| Jul 2, 2026 | 42.05 | 44.18 | 41.16 | 43.99 | 43.99 | 5.64% | 329,043 |
| Jul 1, 2026 | 43.63 | 44.28 | 40.92 | 41.64 | 41.64 | -5.34% | 438,285 |
| Jun 30, 2026 | 43.33 | 45.00 | 42.40 | 43.99 | 43.99 | 2.37% | 682,833 |
| Jun 29, 2026 | 42.29 | 43.48 | 41.72 | 42.97 | 42.97 | 1.87% | 319,978 |
| Jun 26, 2026 | 42.56 | 44.03 | 40.69 | 42.18 | 42.18 | -1.38% | 1,019,147 |
| Jun 25, 2026 | 41.09 | 44.30 | 40.44 | 42.77 | 42.77 | 4.09% | 475,583 |
| Jun 24, 2026 | 39.81 | 41.28 | 39.18 | 41.09 | 41.09 | 3.06% | 546,713 |
| Jun 23, 2026 | 38.40 | 42.31 | 37.28 | 39.87 | 39.87 | 2.68% | 540,441 |
| Jun 22, 2026 | 37.89 | 40.02 | 37.87 | 38.83 | 38.83 | 4.10% | 416,416 |
| Jun 18, 2026 | 38.28 | 38.56 | 36.63 | 37.30 | 37.30 | 1.55% | 736,761 |
| Jun 17, 2026 | 34.81 | 37.11 | 33.99 | 36.73 | 36.73 | 5.70% | 406,685 |