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Sionna Therapeutics (SION) Stock Chart & Stock Price History

Sionna Therapeutics logo
$6.54 +0.29 (+4.64%)
Closing price 04:00 PM Eastern
Extended Trading
$6.50 -0.04 (-0.69%)
As of 06:04 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Sionna Therapeutics Stock Price Performance

The Sionna Therapeutics (SION) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 68.72%, with a year-to-date return of -84.10%. In the past month, the stock has decreased 85.12%, reflecting recent market activity.

As of the latest close, Sionna Therapeutics traded at $6.25 with a market cap of $282.58 million and volume of 9.35 million shares.

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5 Day
Performance
-87.19%
1 Month
Performance
-85.12%
3 Month
Performance
-84.83%
Year-To-Date
Performance
-84.10%
1 Year
Performance
-68.72%

SION Stock Chart for Thursday, August, 13, 2026

SION Chart by TradingView

Sionna Therapeutics Stock Price History

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DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/12/2026$5.10$6.25
+22.55%		$6.40$4.989.35 million shs$282.58 million
08/11/2026$4.50$5.10
+13.33%		$5.49$4.4914.85 million shs$230.57 million
08/10/2026$51.04$4.50
-91.18%		$5.00$4.0138.34 million shs$203.45 million
08/07/2026$49.61$51.04
+2.88%		$54.97$49.30746,247 shs$2.30 billion
08/06/2026$47.34$49.61
+4.80%		$50.80$47.08778,269 shs$2.24 billion
08/05/2026$49.94$47.34
-5.21%		$51.91$46.92757,718 shs$2.14 billion
08/04/2026$49.26$49.94
+1.38%		$51.73$48.52913,071 shs$2.25 billion
08/03/2026$47.13$49.26
+4.52%		$49.49$45.57508,980 shs$2.22 billion
07/31/2026$46.78$47.13
+0.75%		$47.62$44.27390,624 shs$2.13 billion
07/30/2026$44.81$46.78
+4.40%		$47.28$44.64353,249 shs$2.11 billion
07/29/2026$46.55$44.81
-3.74%		$46.84$44.63368,301 shs$2.02 billion
07/28/2026$45.38$46.55
+2.58%		$46.69$44.11320,203 shs$2.10 billion
07/27/2026$45.70$45.38
-0.70%		$47.89$45.11403,809 shs$2.05 billion
07/24/2026$44.06$45.70
+3.72%		$46.40$43.41654,828 shs$2.06 billion
07/23/2026$45.03$44.06
-2.15%		$46.45$43.84811,060 shs$1.99 billion
07/22/2026$47.21$45.03
-4.62%		$47.71$44.23562,846 shs$2.03 billion
07/21/2026$45.69$47.21
+3.33%		$48.00$45.24598,114 shs$2.13 billion
07/20/2026$49.41$45.69
-7.53%		$51.57$44.78816,400 shs$2.06 billion
07/17/2026$45.29$49.41
+9.10%		$51.00$43.121.14 million shs$2.23 billion
07/16/2026$44.38$45.29
+2.05%		$48.22$43.471.10 million shs$2.04 billion
07/15/2026$42.59$44.38
+4.20%		$45.37$41.69522,035 shs$2.00 billion
07/14/2026$43.95$42.59
-3.09%		$45.01$42.39275,951 shs$1.92 billion
07/13/2026$45.29$43.95
-2.96%		$45.49$42.73415,290 shs$1.98 billion
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This page (NASDAQ:SION) was last updated on 8/13/2026 by MarketBeat.com Staff.
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