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Sionna Therapeutics, Inc.

SION

Sionna Therapeutics is a clinical-stage biopharmaceutical company focused on developing small molecule medicines to treat cystic fibrosis by normalizing the function of the CFTR protein.

Market cap
$2.05B+162%
Net income-$85.6M-29.0%
Free cash flow-$72.1M-28.8%
EPS (diluted)-$411.51+84.9%
Trailing twelve months · change vs. prior year

Earnings

Next report

Aug 10, 2026 (In 1 week)
EPS estimate-$0.64

Financials

Q1 2026

Income statement

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Operating income-$29.6M-50.6%
Net income-$26.8M-62.5%
EPS (diluted)-$0.60+3.2%

Balance sheet

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Cash & equivalents$64.3M-23.2%
Total debt$8.4M-11.8%
Total equity$288.2M-18.1%
Total assets$305.0M-17.5%

Cash flow

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Operating cash flow-$21.8M-34.1%
CapEx--100%
Free cash flow-$21.8M-33.4%

Valuation & ratios

Valuation

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Market cap$2.05B+162%
Enterprise value$1.99B+137%

Returns & leverage

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Return on equity-26.7%
Debt / equity0.0×
Current ratio22.6×-6.1×

Competitors

Profile

Sionna Therapeutics is a clinical-stage biopharmaceutical company focused on developing small molecule medicines to treat cystic fibrosis by normalizing the function of the CFTR protein. The company specifically targets the nucleotide binding domain 1 (NBD1) to correct defects caused by the F508del mutation, which affects approximately 90% of cystic fibrosis patients. Their core value proposition lies in achieving near-normal CFTR function through novel NBD1 stabilizers that can be used as monotherapies or in combination with other modulators.

Competitive position

A clinical-stage innovator targeting the previously 'undruggable' NBD1 domain to differentiate from existing CFTR modulators.

GeographiesGlobal
Customer segmentsPatients, Healthcare Providers
Business modelBiopharmaceutical R&D
SuppliersContract Research Organizations (CROs), Contract Manufacturing Organizations (CMOs), Raw Material Suppliers
CustomersSpecialty Distributors, Hospitals, Patients with F508del mutation
Listed2025
CEOMichael Cloonan
FilingsSEC EDGAR

Questions, answered.

What is Sionna Therapeutics, Inc.'s market cap?
Sionna Therapeutics, Inc. (SION) has a market capitalization of $2.1B and trades on NASDAQ.
Who are Sionna Therapeutics, Inc.'s competitors?
Sionna Therapeutics, Inc.'s key competitors include Vertex Pharmaceuticals, AbbVie, Soligenix, Inc. Common Stock, and others. These companies compete in similar markets and product categories.
Where is Sionna Therapeutics, Inc. headquartered?
Sionna Therapeutics, Inc. is headquartered in United States of America. It has been publicly traded since 2025.