Sionna Therapeutics

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About SION

Sionna Therapeutics, Inc. operates as a clinical-stage biopharmaceutical company. The firm engages in researching, developing and commercializing novel medicines for cystic fibrosis. 

CEO
Michael Cloonan
CEOMichael Cloonan
Employees
59
Employees59
Headquarters
Waltham, Massachusetts
HeadquartersWaltham, Massachusetts
Founded
2019
Founded2019
Employees
59
Employees59

SION Key Statistics

Market cap
206.90M
Market cap206.90M
Price-Earnings ratio
-2.02
Price-Earnings ratio-2.02
Dividend yield
—
Dividend yield—
Average volume
964.90K
Average volume964.90K
High today
$4.80
High today$4.80
Low today
$4.37
Low today$4.37
Open price
$4.69
Open price$4.69
Volume
790.63K
Volume790.63K
52 Week high
$54.97
52 Week high$54.97
52 Week low
$4.01
52 Week low$4.01

Stock Snapshot

The current Sionna Therapeutics(SION) stock price is $4.40, with a market capitalization of 206.9M. The stock trades at a price-to-earnings (P/E) ratio of -2.02.

On 2026-10-14, Sionna Therapeutics(SION) stock traded between a low of $4.37 and a high of $4.80. Shares are currently priced at $4.40, which is +0.8% above the low and -8.2% below the high.

Sionna Therapeutics(SION) shares are trading with a volume of 790.63K, against a daily average of 964.9K.

During the past year, Sionna Therapeutics(SION) stock moved between $4.01 at its lowest and $54.97 at its peak.

During the past year, Sionna Therapeutics(SION) stock moved between $4.01 at its lowest and $54.97 at its peak.

SION News

TipRanks 6d
Sionna Therapeutics to present at 2026 North American Cystic Fibrosis Conference

Sionna Therapeutics (SION) “announced data being presented at the 2026 North American Cystic Fibrosis Conference (NACFC) being held in Atlanta, Georgia on Octob...

Analyst ratings

91%

of 11 ratings
Buy
9.1%
Hold
90.9%
Sell
0%

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