Listed

Sionna Therapeutics, Inc.

SIONNasdaqCIK 2036042HealthcareFiscal year ends Dec 31

Standardized line items from XBRL company facts, the last twelve quarters. Negative values are in parentheses. A figure marked d is derived from year-to-date figures.

Income statement

Operating income−$32.5m, Q2 FY2026
Net income−$29.9m, Q2 FY2026
Sionna Therapeutics, Inc., income statement, quarterly
Line itemUnitperiod not labelled2024-03-31period not labelled2024-06-30period not labelled2024-09-30period not labelled2024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30
Research and development$m10.2Research and development, period not labelled, three months to 2024-03-31$10.2m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure8.2Research and development, period not labelled, three months to 2024-06-30$8.2m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure24.6Research and development, period not labelled, three months to 2024-09-30$24.6m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure14.3Research and development, period not labelled, three months to 2024-12-31$14.3m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure13.7Research and development, Q1 FY2025, three months to 2025-03-31$13.7m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure15.4Research and development, Q2 FY2025, three months to 2025-06-30$15.4m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure16.0Research and development, Q3 FY2025, three months to 2025-09-30$16.0m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure15.2Research and development, Q4 FY2025, three months to 2025-12-31$15.2m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure19.0Research and development, Q1 FY2026, three months to 2026-03-31$19.0m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure21.9Research and development, Q2 FY2026, three months to 2026-06-30$21.9m. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Operating income$m(13.1)Operating income, period not labelled, three months to 2024-03-31−$13.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure(11.3)Operating income, period not labelled, three months to 2024-06-30−$11.3m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure(28.0)Operating income, period not labelled, three months to 2024-09-30−$28.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(18.1)Operating income, period not labelled, three months to 2024-12-31−$18.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure(19.7)Operating income, Q1 FY2025, three months to 2025-03-31−$19.7m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(21.9)Operating income, Q2 FY2025, three months to 2025-06-30−$21.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure(23.8)Operating income, Q3 FY2025, three months to 2025-09-30−$23.8m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(23.6)Operating income, Q4 FY2025, three months to 2025-12-31−$23.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure(29.6)Operating income, Q1 FY2026, three months to 2026-03-31−$29.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(32.5)Operating income, Q2 FY2026, three months to 2026-06-30−$32.5m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Net income$m(11.8)Net income, period not labelled, three months to 2024-03-31−$11.8m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(8.6)Net income, period not labelled, three months to 2024-06-30−$8.6m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(25.4)Net income, period not labelled, three months to 2024-09-30−$25.4m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(15.8)Net income, period not labelled, three months to 2024-12-31−$15.8m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure(16.5)Net income, Q1 FY2025, three months to 2025-03-31−$16.5m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure(18.1)Net income, Q2 FY2025, three months to 2025-06-30−$18.1m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure(20.3)Net income, Q3 FY2025, three months to 2025-09-30−$20.3m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(20.4)Net income, Q4 FY2025, three months to 2025-12-31−$20.4m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure(26.8)Net income, Q1 FY2026, three months to 2026-03-31−$26.8m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure(29.9)Net income, Q2 FY2026, three months to 2026-06-30−$29.9m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Diluted EPS$ per share(3840.00)Diluted EPS, period not labelled, three months to 2024-03-31−$3840.00 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure(2710.00)Diluted EPS, period not labelled, three months to 2024-06-30−$2710.00 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure(5.67)Diluted EPS, period not labelled, three months to 2024-09-30−$5.67 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figurenot reported(0.62)Diluted EPS, Q1 FY2025, three months to 2025-03-31−$0.62 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(0.41)Diluted EPS, Q2 FY2025, three months to 2025-06-30−$0.41 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure(0.46)Diluted EPS, Q3 FY2025, three months to 2025-09-30−$0.46 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figurenot reported(0.60)Diluted EPS, Q1 FY2026, three months to 2026-03-31−$0.60 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(0.66)Diluted EPS, Q2 FY2026, three months to 2026-06-30−$0.66 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Basic EPS$ per share(3840.00)Basic EPS, period not labelled, three months to 2024-03-31−$3840.00 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure(2710.00)Basic EPS, period not labelled, three months to 2024-06-30−$2710.00 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure(5.67)Basic EPS, period not labelled, three months to 2024-09-30−$5.67 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figurenot reported(0.62)Basic EPS, Q1 FY2025, three months to 2025-03-31−$0.62 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(0.41)Basic EPS, Q2 FY2025, three months to 2025-06-30−$0.41 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure(0.46)Basic EPS, Q3 FY2025, three months to 2025-09-30−$0.46 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figurenot reported(0.60)Basic EPS, Q1 FY2026, three months to 2026-03-31−$0.60 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(0.66)Basic EPS, Q2 FY2026, three months to 2026-06-30−$0.66 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure

Balance sheet

Cash and equivalents$63.3m, Q2 FY2026
Shareholders' equity$265.8m, Q2 FY2026
Sionna Therapeutics, Inc., balance sheet, quarterly
Line itemUnitperiod not labelled2023-12-31period not labelled2024-03-31period not labelled2024-06-30period not labelled2024-09-30period not labelled2024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30
Cash and equivalents$mnot reported82.8Cash and equivalents, period not labelled, at 2024-03-31$82.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure44.0Cash and equivalents, period not labelled, at 2024-06-30$44.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure35.7Cash and equivalents, period not labelled, at 2024-09-30$35.7m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure37.8Cash and equivalents, period not labelled, at 2024-12-31$37.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2026-03-02, accession 0001628280-26-012996.Report this figure82.7Cash and equivalents, Q1 FY2025, at 2025-03-31$82.7m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure41.0Cash and equivalents, Q2 FY2025, at 2025-06-30$41.0m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure50.8Cash and equivalents, Q3 FY2025, at 2025-09-30$50.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure58.5Cash and equivalents, FY2025, at 2025-12-31$58.5m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure63.3Cash and equivalents, Q1 FY2026, at 2026-03-31$63.3m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure63.3Cash and equivalents, Q2 FY2026, at 2026-06-30$63.3m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Current assets$mnot reportednot reportednot reportednot reported151Current assets, period not labelled, at 2024-12-31$151.0m. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2026-03-02, accession 0001628280-26-012996.Report this figure274Current assets, Q1 FY2025, at 2025-03-31$273.7m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure267Current assets, Q2 FY2025, at 2025-06-30$266.7m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure252Current assets, Q3 FY2025, at 2025-09-30$252.3m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure241Current assets, FY2025, at 2025-12-31$241.4m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure221Current assets, Q1 FY2026, at 2026-03-31$221.0m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure216Current assets, Q2 FY2026, at 2026-06-30$216.1m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Total assets$mnot reportednot reportednot reportednot reported186Total assets, period not labelled, at 2024-12-31$185.8m. XBRL concept us-gaap:Assets. 10-K filed 2026-03-02, accession 0001628280-26-012996.Report this figure370Total assets, Q1 FY2025, at 2025-03-31$369.7m. XBRL concept us-gaap:Assets. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure352Total assets, Q2 FY2025, at 2025-06-30$352.0m. XBRL concept us-gaap:Assets. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure339Total assets, Q3 FY2025, at 2025-09-30$339.3m. XBRL concept us-gaap:Assets. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure326Total assets, FY2025, at 2025-12-31$326.0m. XBRL concept us-gaap:Assets. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure305Total assets, Q1 FY2026, at 2026-03-31$305.0m. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure283Total assets, Q2 FY2026, at 2026-06-30$283.2m. XBRL concept us-gaap:Assets. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Current liabilities$mnot reportednot reportednot reportednot reported10.4Current liabilities, period not labelled, at 2024-12-31$10.4m. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2026-03-02, accession 0001628280-26-012996.Report this figure9.5Current liabilities, Q1 FY2025, at 2025-03-31$9.5m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure7.6Current liabilities, Q2 FY2025, at 2025-06-30$7.5m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure9.9Current liabilities, Q3 FY2025, at 2025-09-30$9.9m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure11.7Current liabilities, FY2025, at 2025-12-31$11.7m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure9.8Current liabilities, Q1 FY2026, at 2026-03-31$9.8m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure10.8Current liabilities, Q2 FY2026, at 2026-06-30$10.8m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Total liabilities$mnot reportednot reportednot reportednot reported19.1Total liabilities, period not labelled, at 2024-12-31$19.1m. XBRL concept us-gaap:Liabilities. 10-K filed 2026-03-02, accession 0001628280-26-012996.Report this figure17.9Total liabilities, Q1 FY2025, at 2025-03-31$17.9m. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure15.6Total liabilities, Q2 FY2025, at 2025-06-30$15.6m. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure17.6Total liabilities, Q3 FY2025, at 2025-09-30$17.6m. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure19.1Total liabilities, FY2025, at 2025-12-31$19.1m. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure16.8Total liabilities, Q1 FY2026, at 2026-03-31$16.8m. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure17.5Total liabilities, Q2 FY2026, at 2026-06-30$17.5m. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure
Shareholders' equity$m(115)Shareholders' equity, period not labelled, at 2023-12-31−$114.9m. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2026-03-02, accession 0001628280-26-012996.Report this figure(126)Shareholders' equity, period not labelled, at 2024-03-31−$126.1m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(134)Shareholders' equity, period not labelled, at 2024-06-30−$133.8m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(149)Shareholders' equity, period not labelled, at 2024-09-30−$148.5m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure(164)Shareholders' equity, period not labelled, at 2024-12-31−$163.7m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure352Shareholders' equity, Q1 FY2025, at 2025-03-31$351.8m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure336Shareholders' equity, Q2 FY2025, at 2025-06-30$336.4m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure322Shareholders' equity, Q3 FY2025, at 2025-09-30$321.7m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure307Shareholders' equity, FY2025, at 2025-12-31$306.8m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure288Shareholders' equity, Q1 FY2026, at 2026-03-31$288.2m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure266Shareholders' equity, Q2 FY2026, at 2026-06-30$265.8m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure

Cash flow

Operating cash flow−$22.2m, Q2 FY2026
Capital expenditure$0, Q2 FY2026
Sionna Therapeutics, Inc., cash flow, quarterly
Line itemUnitperiod not labelled2024-03-31period not labelled2024-06-30period not labelled2024-09-30period not labelled2024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30
Operating cash flow$m(13.2)Operating cash flow, period not labelled, three months to 2024-03-31−$13.2m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure(10.1)Operating cash flow, period not labelled, three months to 2024-06-30−$10.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-08-11, accession 0002036042-25-000047. Derived: 6-month figure less the 3-month figure.Report this figure(17.7)Operating cash flow, period not labelled, three months to 2024-09-30−$17.7m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-05, accession 0001628280-25-049251. Derived: 9-month figure less the 6-month figure.Report this figure(11.8)Operating cash flow, period not labelled, three months to 2024-12-31−$11.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure(16.3)Operating cash flow, Q1 FY2025, three months to 2025-03-31−$16.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(18.2)Operating cash flow, Q2 FY2025, three months to 2025-06-30−$18.2m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001628280-26-053839. Derived: 6-month figure less the 3-month figure.Report this figure(15.2)Operating cash flow, Q3 FY2025, three months to 2025-09-30−$15.2m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-05, accession 0001628280-25-049251. Derived: 9-month figure less the 6-month figure.Report this figure(16.6)Operating cash flow, Q4 FY2025, three months to 2025-12-31−$16.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure(21.8)Operating cash flow, Q1 FY2026, three months to 2026-03-31−$21.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure(22.2)Operating cash flow, Q2 FY2026, three months to 2026-06-30−$22.2m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001628280-26-053839. Derived: 6-month figure less the 3-month figure.Report this figure
Capital expenditure$m0.0Capital expenditure, period not labelled, three months to 2024-03-31$0. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure0.0Capital expenditure, period not labelled, three months to 2024-06-30$0. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-08-11, accession 0002036042-25-000047. Derived: 6-month figure less the 3-month figure.Report this figure0.0Capital expenditure, period not labelled, three months to 2024-09-30$0. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-05, accession 0001628280-25-049251. Derived: 9-month figure less the 6-month figure.Report this figure0.0Capital expenditure, period not labelled, three months to 2024-12-31$27.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure0.1Capital expenditure, Q1 FY2025, three months to 2025-03-31$86.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure0.0Capital expenditure, Q2 FY2025, three months to 2025-06-30$0. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001628280-26-053839. Derived: 6-month figure less the 3-month figure.Report this figure0.1Capital expenditure, Q3 FY2025, three months to 2025-09-30$87.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-05, accession 0001628280-25-049251. Derived: 9-month figure less the 6-month figure.Report this figure0.2Capital expenditure, Q4 FY2025, three months to 2025-12-31$204.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-03-02, accession 0001628280-26-012996. Derived: 12-month figure less the 9-month figure.Report this figure0.0Capital expenditure, Q1 FY2026, three months to 2026-03-31$0. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure0.0Capital expenditure, Q2 FY2026, three months to 2026-06-30$0. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001628280-26-053839. Derived: 6-month figure less the 3-month figure.Report this figure

Shares

Diluted shares (weighted)45.15m, Q2 FY2026
Sionna Therapeutics, Inc., shares, quarterly
Line itemUnitperiod not labelled2024-03-31period not labelled2024-06-30period not labelled2024-09-30Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q1 FY20262026-03-31Q2 FY20262026-06-30
Diluted shares (weighted)m shares3.1Diluted shares (weighted), period not labelled, three months to 2024-03-313,082,635 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-05-12, accession 0002036042-25-000016.Report this figure3.2Diluted shares (weighted), period not labelled, three months to 2024-06-303,159,815 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-08-11, accession 0002036042-25-000047.Report this figure4.5Diluted shares (weighted), period not labelled, three months to 2024-09-304,485,813 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure26.6Diluted shares (weighted), Q1 FY2025, three months to 2025-03-3126,596,059 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure44.1Diluted shares (weighted), Q2 FY2025, three months to 2025-06-3044,116,997 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure44.3Diluted shares (weighted), Q3 FY2025, three months to 2025-09-3044,255,053 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-11-05, accession 0001628280-25-049251.Report this figure44.9Diluted shares (weighted), Q1 FY2026, three months to 2026-03-3144,921,984 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-12, accession 0001628280-26-033876.Report this figure45.1Diluted shares (weighted), Q2 FY2026, three months to 2026-06-3045,148,971 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure

Shares outstanding: 45.21mShares outstanding, period not labelled, at 2026-07-3145,212,399 shares. XBRL concept dei:EntityCommonStockSharesOutstanding. 10-Q filed 2026-08-06, accession 0001628280-26-053839.Report this figure at Jul 31, 2026, from the cover of the 10-Q filed Aug 6, 2026.

Source: SEC EDGAR, XBRL company facts. Last ingested by Listed: Oct 24, 2026, 15:50 ET. Listed shows no prices and gives no investment advice.