Sionna

Public

Waltham, MassachusettsHealthcare/Wellnesswww.sionnatx.com

Last Round

IPO Announced

Feb 7, 2025

Est. Valuation

$810.3M

Total Funding Raised

$551.2M

Company Overview

Sionna is a life sciences company specializing in the development of innovative treatments for cystic fibrosis through first-in-class small molecules aimed at fully normalizing CFTR function for the majority of patients.

Sector

Healthcare/Wellness

AI Layer

Non-AI

Keywords

cystic fibrosis NBD1 stabilizersmall molecule therapies for cystic fibrosiscystic fibrosis therapies for F508del mutationCFTR modulator combination therapiesclinical-stage cystic fibrosis drug developmentlicensed cystic fibrosis drug candidatescystic fibrosis TMD1 correctorcystic fibrosis ICL4 modulator

Sionna Comps

Public and private peers based on sector, stage, and business model.

Sionna comps — public and private peers by sector, stage, and business model
Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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Sionna Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
IPO Announced	Feb 7, 2025
Series C	Mar 6, 2024
Series B	Apr 19, 2022
Series A	Aug 1, 2019

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Sionna Investors

Notable investors and investment history

Sionna investors
Investor	Rounds
Enavate Sciences	Series C
Q Healthcare Holdings, LLC.	Series C, Series B
RA Capital Advisors	Series C, Series B
RA Capital Management	Series C, Series B, Series A
Perceptive Advisors	Series C, Series B
Guggenheim Securities	IPO
Altitude Life Science Ventures	Series C

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Sionna Filings

SEC and related filings with document metadata.

Data table
Typed	Date	Amount Offered	Amount Sold	Filling	Pages	Download
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Sionna Filings

SEC and related filings with document metadata.

Firmographic Details

HeadquartersWaltham, Massachusetts

Employee Range74

Year Founded2019

Last FundingFeb 7, 2025

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