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Sionna Therapeutics, Inc. (SION)

3.7500 +0.0200 (+0.54%)
As of 11:01:23 AM EST. Market Open.
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Key Executives

Amounts are as of December 31, 2025 and compensation values are for the last fiscal year ending on that date. Pay is salary, bonuses, etc. Exercised is the value of options exercised during the fiscal year. Currency in USD.
Name Title Pay Exercised Year Born
Mr. Michael Cloonan M.B.A.
President, CEO & Director 1.03M -- 1971
Ms. Elena H. Ridloff C.F.A.
CFO & Chief Business Officer 771.6k -- 1980
Dr. Greg Hurlbut Ph.D.
Co-Founder & Senior VP of Discovery Research -- -- --
Dr. Mark Munson Ph.D.
Co-founder -- -- --
Mr. Andy Chu
Vice President of Information & Technology -- -- --
Juliet Labadorf
Senior Director of Investor Relations & Corporate Development -- -- --
Ms. Jennifer Fitzpatrick J.D.
Chief Legal Officer & Head of Program Management -- -- 1977
Ms. Roxanne McGrath
Vice President of Head of Human Resources -- -- --
Dr. Charlotte McKee M.D.
Chief Medical Officer & Head of Research and Development 647.92k -- 1965
Ms. Mara Furlow M.S.
Senior Vice President of Global Regulatory Affairs & Quality -- -- --

Sionna Therapeutics, Inc.

21 Hickory Drive
Suite 500
Waltham, MA 02451
United States
617 819 2020 https://www.sionnatx.com
Sector: 
Healthcare
Industry: 
Biotechnology
Full Time Employees: 
59

Description

Sionna Therapeutics, Inc., a clinical-stage biopharmaceutical company, researches and develops medicines for the treatment of cystic fibrosis (CF). It develops galicaftor (SION-2222), a transmembrane domain 1 (TMD1)-directed cystic fibrosis transmembrane conductance regulator (CFTR) that has completed Phase 2 trial; navocaftor (SION-3067), a potentiator that has completed Phase 2 trial; SION-109, an intracellular loop 4 directed CFTR corrector that has completed Phase 1 trial; SION-2851, a TMD1-directed CFTR corrector that has completed Phase 1 trial; SION-451, which is nucleotide-binding domain 1 stabilizer in Phase 1 trial; and SION-719, which is nucleotide-binding domain 1 stabilizer in Phase 2a proof-of-concept trial. The company was formerly known as Sling Therapeutics, Inc. and changed its name to Sionna Therapeutics, Inc. in July 2021. Sionna Therapeutics, Inc. was incorporated in 2019 and is headquartered in Waltham, Massachusetts.

Corporate Governance

Sionna Therapeutics, Inc.’s ISS Governance QualityScore as of N/A is N/A. The pillar scores are Audit: N/A; Board: N/A; Shareholder Rights: N/A; Compensation: N/A.
Corporate governance scores courtesy of Institutional Shareholder Services (ISS) Scores indicate decile rank relative to index or region. A decile score of 1 indicates lower governance risk, while a 10 indicates higher governance risk.

Upcoming Events

November 5, 2026 at 1:30 PM UTC

Sionna Therapeutics, Inc. Earnings Date

Recent Events

September 14, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

August 10, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

August 6, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

June 18, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

May 12, 2026 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

April 27, 2026 at 12:00 AM UTC

DEFA14A: Proxy Statements

March 2, 2026 at 12:00 AM UTC

S-3ASR: Offering Registrations

November 5, 2025 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

August 11, 2025 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

June 13, 2025 at 12:00 AM UTC

8-K: Corporate Changes & Voting Matters

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