Stock listing
NASDAQ:SION Sionna Therapeutics, Inc. Stock
Home listing (NASDAQ) of Sionna Therapeutics, Inc.
Follow Sionna Therapeutics, Inc. into a list and get an email when it puts out news.
Share price · NASDAQ:SION
$4.01 USD +0.12 (+3.1%)
Close on Oct 19, 2026
- Day range
- $3.85 – $4.11 USDOct 19, 2026
- Volume
- 1.17M sharesOct 19, 2026
- Market cap
- $181.1M USDAt the close on Oct 19, 2026 · price × 45.15M shares outstanding
Prices by listing
| Listing | Last | Change | Volume | Open | High | Low | Previous close | Price from |
|---|---|---|---|---|---|---|---|---|
| NASDAQ:SION · Home | $4.01 USD | +0.12 (+3.1%) | 1,166,210 | $3.93 | $4.11 | $3.845 | $3.89 | Close on Oct 19, 2026 |
Daily closes
Last 3 months, Jul 20, 2026 – Oct 19, 2026 · NASDAQ:SION · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $4.01 | +0.12 | +3.1% | $3.93 | $4.11 | $3.845 | 1,166,210 | |
| $3.89 | -0.19 | -4.7% | $4.06 | $4.06 | $3.775 | 1,483,533 | |
| $4.08 | -0.01 | -0.2% | $4.15 | $4.29 | $4.02 | 944,526 | |
| $4.09 | -0.29 | -6.6% | $4.30 | $4.40 | $3.93 | 1,497,672 | |
| $4.38 | -0.31 | -6.6% | $4.69 | $4.795 | $4.365 | 790,163 | |
| $4.69 | -0.21 | -4.3% | $4.89 | $4.93 | $4.675 | 692,612 | |
| $4.90 | 0.00 | 0.0% | $4.93 | $5.12 | $4.83 | 633,561 | |
| $4.90 | +0.08 | +1.7% | $4.78 | $4.97 | $4.65 | 915,602 | |
| $4.82 | +0.07 | +1.5% | $4.68 | $4.87 | $4.61 | 880,100 | |
| $4.75 | -0.10 | -2.1% | $4.88 | $4.88 | $4.52 | 1,259,900 | |
| $4.85 | -0.06 | -1.2% | $4.95 | $4.96 | $4.63 | 1,097,000 | |
| $4.91 | -0.19 | -3.7% | $5.19 | $5.19 | $4.86 | 1,159,300 | |
| $5.10 | -0.16 | -3.0% | $5.26 | $5.33 | $5.03 | 1,056,700 | |
| $5.26 | +0.11 | +2.1% | $5.19 | $5.342 | $5.02 | 1,157,500 | |
| $5.15 | +0.03 | +0.6% | $5.15 | $5.19 | $5.025 | 797,500 | |
| $5.12 | -0.11 | -2.1% | $5.17 | $5.25 | $5.05 | 775,600 | |
| $5.23 | 0.00 | 0.0% | $5.28 | $5.30 | $5.09 | 1,401,500 | |
| $5.23 | -0.28 | -5.1% | $5.50 | $5.59 | $5.152 | 1,246,700 | |
| $5.51 | -0.51 | -8.5% | $6.03 | $6.12 | $5.32 | 1,668,800 | |
| $6.02 | +0.02 | +0.3% | $5.99 | $6.17 | $5.84 | 1,693,900 | |
| $6.00 | +0.04 | +0.7% | $6.00 | $6.13 | $5.70 | 2,522,700 | |
| $5.96 | -1.22 | -17.0% | $7.12 | $7.19 | $5.90 | 3,704,800 | |
| $7.18 | +0.14 | +2.0% | $7.27 | $7.73 | $7.15 | 1,476,800 | |
| $7.04 | +0.16 | +2.3% | $6.95 | $7.368 | $6.91 | 1,970,800 | |
| $6.88 | -1.38 | -16.7% | $7.87 | $8.00 | $6.85 | 2,461,800 | |
| $8.26 | +0.41 | +5.2% | $7.84 | $8.535 | $7.84 | 1,210,600 | |
| $7.85 | +0.23 | +3.0% | $7.79 | $8.03 | $7.47 | 1,208,100 | |
| $7.62 | +0.14 | +1.9% | $7.40 | $7.75 | $7.12 | 1,222,600 | |
| $7.48 | +0.18 | +2.5% | $7.27 | $7.55 | $7.169 | 766,100 | |
| $7.30 | +0.12 | +1.7% | $7.13 | $7.555 | $6.89 | 884,700 | |
| $7.18 | +0.43 | +6.4% | $6.68 | $7.22 | $6.62 | 921,800 | |
| $6.75 | -0.56 | -7.7% | $7.31 | $7.56 | $6.70 | 1,242,200 | |
| $7.31 | +0.85 | +13.2% | $6.63 | $7.35 | $6.27 | 1,590,500 | |
| $6.46 | +0.43 | +7.1% | $5.95 | $6.48 | $5.93 | 1,404,800 | |
| $6.03 | +0.16 | +2.7% | $5.87 | $6.08 | $5.75 | 1,382,300 | |
| $5.87 | -0.19 | -3.1% | $5.97 | $6.06 | $5.822 | 783,100 | |
| $6.06 | -0.11 | -1.8% | $6.14 | $6.25 | $5.97 | 773,900 | |
| $6.17 | -0.08 | -1.3% | $6.20 | $6.29 | $6.02 | 923,800 | |
| $6.25 | +0.66 | +11.8% | $5.60 | $6.30 | $5.58 | 1,973,200 | |
| $5.59 | +0.30 | +5.7% | $5.29 | $5.61 | $5.21 | 1,773,800 | |
| $5.29 | -0.23 | -4.2% | $5.54 | $5.72 | $5.27 | 1,937,800 | |
| $5.52 | -0.73 | -11.7% | $6.27 | $6.273 | $5.51 | 1,749,500 | |
| $6.25 | +0.31 | +5.2% | $6.09 | $6.28 | $5.88 | 1,873,700 | |
| $5.94 | +0.03 | +0.5% | $5.75 | $5.98 | $5.60 | 2,057,600 | |
| $5.91 | -0.55 | -8.5% | $6.47 | $6.80 | $5.82 | 2,985,500 | |
| $6.46 | -0.08 | -1.2% | $6.24 | $6.66 | $6.15 | 2,877,400 | |
| $6.54 | +0.29 | +4.6% | $6.29 | $6.75 | $6.05 | 5,485,900 | |
| $6.25 | +1.15 | +22.5% | $4.99 | $6.40 | $4.975 | 9,438,000 | |
| $5.10 | +0.60 | +13.3% | $4.51 | $5.49 | $4.49 | 14,931,100 | |
| $4.50 | -46.54 | -91.2% | $4.85 | $5.00 | $4.01 | 38,644,400 | |
| $51.04 | +1.43 | +2.9% | $50.86 | $54.97 | $49.30 | 747,500 | |
| $49.61 | +2.27 | +4.8% | $47.11 | $50.80 | $47.08 | 778,300 | |
| $47.34 | -2.60 | -5.2% | $50.20 | $51.91 | $46.92 | 757,700 | |
| $49.94 | +0.68 | +1.4% | $50.16 | $51.73 | $48.52 | 913,100 | |
| $49.26 | +2.13 | +4.5% | $46.86 | $49.49 | $45.57 | 509,000 | |
| $47.13 | +0.35 | +0.7% | $46.68 | $47.62 | $44.27 | 392,300 | |
| $46.78 | +1.97 | +4.4% | $44.69 | $47.28 | $44.64 | 353,200 | |
| $44.81 | -1.74 | -3.7% | $46.81 | $46.84 | $44.63 | 368,300 | |
| $46.55 | +1.17 | +2.6% | $45.41 | $46.69 | $44.11 | 320,200 | |
| $45.38 | -0.32 | -0.7% | $46.03 | $47.89 | $45.11 | 403,800 | |
| $45.70 | +1.64 | +3.7% | $44.31 | $46.40 | $43.41 | 654,800 | |
| $44.06 | -0.97 | -2.2% | $44.39 | $46.45 | $43.84 | 811,100 | |
| $45.03 | -2.18 | -4.6% | $46.92 | $47.71 | $44.23 | 562,900 | |
| $47.21 | +1.52 | +3.3% | $45.24 | $48.00 | $45.24 | 598,100 | |
| $45.69 | -3.72 | -7.5% | $50.20 | $51.57 | $44.78 | 816,400 |
- Ticker
- NASDAQ:SION
- Asset type
- Stock
- Sector
- Health care
- Industry
- Biotechnology
- Exchange
- NASDAQ
- Currency
- USD
What changed lately
Latest news release · Oct 8, 2026
Sionna Therapeutics to Present Data at the 2026 North American Cystic Fibrosis Conference
Latest deck · Sep 14, 2026
Corporate Update (September 2026)
Corporate update · 23 slides
Latest news
Sionna Therapeutics to Present Data at the 2026 North American Cystic Fibrosis Conference
Oct 8, 2026
Closed $4.90 (0.0%) on Oct 9, 2026
Sionna Therapeutics Announces Plans to Advance SION-451 + SION-2222 Dual Combination into Phase 2a Proof-of-Concept Trial
Sep 14, 2026
Closed $6.88 (-16.7%) on Sep 15, 2026
Sionna Therapeutics Reports Topline Data from Two Development Programs in Cystic Fibrosis and Provides Corporate Update
Aug 10, 2026
Closed $4.50 (-91.2%) on Aug 10, 2026
Sionna Therapeutics Reports Second Quarter 2026 Financial Results
Aug 6, 2026
Closed $49.61 (+4.8%) on Aug 6, 2026
Decks
Corporate Update (September 2026)
Corporate update · 23 slides · Sep 14, 2026
Corporate Update (August 2026)
Corporate update · 14 slides · Aug 10, 2026
49th European Cystic Fibrosis Conference 2026
Conference · 11 slides · June 2026
NACFC (North American Cystic Fibrosis Conference) 2025
Conference · 16 slides · Mar 2, 2026
Sionna Therapeutics, Inc. on 6ix
- Sector
- Health care
- Industry
- Biotechnology
- News releases
- 18 in the last 12 months · 32 in all · newest Oct 8, 2026 · oldest 2025
- Decks
- 7 decks · latest Sep 14, 2026
Where Sionna Therapeutics, Inc. is listed
| Listing | Exchange | Country | Currency |
|---|---|---|---|
| NASDAQ:SION · Home listing · This page | NASDAQ | United States | USD |
| BOATS:SION | BOATS | United States | USD |
Log in to ask 6ix AI your own questions about Sionna Therapeutics, Inc.