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Sionna Therapeutics Inc. – Filings and Transcripts

NASDAQ: SION
Share price (11/6/26): $3.28
Market cap (11/6/26): $148 million

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Key Exhibits

External Links

Financials Filter

ended 06/30/26 Q2

ended 03/31/26 Q1

ended 12/31/25 FY 2025

ended 09/30/25 Q3

ended 06/30/25 Q2

Prospectuses and Registrations Filter

Registration of securities for employees

Automatic shelf registration

Registration of securities for employees

Prospectus supplement with pricing info

Addition of securities to prior initial registration

Ownership Filter

Ra Capital Management, L.P.

RA Capital Healthcare Fund LP, Ra Capital Management, L.P., Kolchinsky Peter, Shah Rajeev M., RA Capital Nexus Fund, L.P., RA Capital Nexus Fund III, L.P.

Fitzpatrick Jennifer

McKee Charlotte

News Filter

Announces Plans to Advance SION-451 + SION-2222 Dual Combination Into Phase 2a Proof-Of-Concept Trial

Reports Topline Data From Two Development Programs in Cystic Fibrosis and Provides Corporate Update

Reports Second Quarter 2026 Financial Results

Shareholder Vote Results

Reports First Quarter 2026 Financial Results

Proxies Filter

Additional info about upcoming vote

Definitive proxy

Additional info about upcoming vote

Definitive proxy

Other Filter

Scanned paper annual report submission

Scanned paper annual report submission

SEC STAFF LETTER

Notice of effectiveness