SION (Sionna Therapeutics) FCF Margin %: 0.00% (As of Mar. 2026)


SION Sionna Therapeutics Inc SION
12 GF Score
Price $43.99
! 3 Warning Signs
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What is Sionna Therapeutics FCF Margin %?

Sionna Therapeutics SION +5.64% 12 FCF Margin % is 0.00% as of Mar. 2026. GuruFocus rates SION with a GF Score™ of 12/100. The stock has 3 warning signs investors should review. Among 954 Biotechnology companies, Sionna Therapeutics ranks worse than 104821.7% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Sionna Therapeutics's Free Cash Flow for the three months ended in Mar. 2026 was $-21.84 Mil. Sionna Therapeutics's Revenue for the three months ended in Mar. 2026 was $0.00 Mil. Therefore, Sionna Therapeutics's FCF Margin % for the quarter that ended in Mar. 2026 was 0.00%.

As of today, Sionna Therapeutics's current FCF Yield % is -3.63%.

The historical rank and industry rank for Sionna Therapeutics's FCF Margin % or its related term are showing as below:


SION's FCF Margin % is not ranked *
in the Biotechnology industry.
Industry Median: -84.535
* Ranked among companies with meaningful FCF Margin % only.

Sionna Therapeutics FCF Margin % Related Terms

Sionna Therapeutics FCF Margin % Historical Data

* Premium members only.

The historical data trend for Sionna Therapeutics's FCF Margin % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Sionna Therapeutics FCF Margin % Chart

Sionna Therapeutics Annual Data
Trend Dec22 Dec23 Dec24 Dec25
FCF Margin %
0.00 0.00 0.00 0.00

Sionna Therapeutics Quarterly Data
Dec22 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
FCF Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

SION vs TYRA, RAPP, IOVA: FCF Margin % Comparison

For the Biotechnology subindustry, Sionna Therapeutics's FCF Margin %, along with its competitors' market caps and FCF Margin % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.

Sionna Therapeutics FCF Margin % vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Sionna Therapeutics's FCF Margin % distribution charts can be found below:

* The bar in red indicates where Sionna Therapeutics's FCF Margin % falls into.


SION
12GF Score
Sionna Therapeutics Inc SION
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Sionna Therapeutics FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

Sionna Therapeutics's FCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-66.674/0
= %

Sionna Therapeutics's FCF Margin for the quarter that ended in Mar. 2026 is calculated as

FCF Margin=Free Cash Flow (Q: Mar. 2026 )/Revenue (Q: Mar. 2026 )
=-21.84/0
= %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about FCF Margin % →
What does a FCF Margin % of 0.00% mean?
Sionna Therapeutics (SION) has a FCF Margin % of 0.00% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Sionna Therapeutics and its competitors. According to the industry distribution chart, Sionna Therapeutics ranks #999999 out of 954 companies in the Biotechnology industry.
Is Sionna Therapeutics' FCF Margin % too high?
Sionna Therapeutics' current FCF Margin % is 0.00%. Based on the distribution chart, Sionna Therapeutics ranks #999999 out of 954 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Sionna Therapeutics has a GF Score™ of 12/100, reflecting its overall financial health beyond just this single metric.
How does Sionna Therapeutics' FCF Margin % compare to TYRA and RAPP?
According to the Biotechnology industry distribution chart, Sionna Therapeutics ranks #999999 out of 954 companies for FCF Margin %. This places Sionna Therapeutics in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Biotechnology company?
A good FCF Margin % depends on the Biotechnology industry context. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Sionna Therapeutics and its competitors. Sionna Therapeutics's current FCF Margin % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sionna Therapeutics stock overvalued right now?
Sionna Therapeutics (SION) has a current FCF Margin % of 0.00%. The current FCF Margin % is 0.00%. Sionna Therapeutics' overall GF Score™ is 12/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Sionna Therapeutics (SION), the current FCF Margin % is 0.00% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Sionna Therapeutics Business Description

Address 21 Hickory Drive, Suite 500, Waltham, MA, USA, 02451
Sionna Therapeutics Inc is a clinical-stage biopharmaceutical company on a mission to revolutionize the current treatment paradigm for cystic fibrosis (CF) patients by developing novel medicines that normalize the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein to deliver clinically meaningful benefits to CF patients. CF is a progressive and life-threatening genetic disease caused by inherited mutations in the CFTR gene, which heads to insufficient CFTR function. The Company is managed as one operating segment focused on the research and development of cystic fibrosis therapies.
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