Sionna Therapeutics Funding: $500M Raised, IPO (2025)

Sionna Therapeutics is a Biotech company based in Natick, Massachusetts. It has raised $500M in total funding. Latest round: IPO.

Sionna Therapeutics funding overview

Sionna Therapeutics is a Biotech company based in Natick, Massachusetts. Sionna Therapeutics has raised $500M in total disclosed funding. That places its disclosed total in the $250M–$1B range. Its most recent disclosed round is an IPO announced in January 2025. The round record for Sionna Therapeutics runs through 2025; nothing later has been disclosed. Investors on record include Cystic Fibrosis Foundation, RA Capital, TPG. 3 distinct backers are named across the disclosed rounds.

Sionna Therapeutics at a glance

Total raised
$500M
Latest round
IPO
Latest round date
January 2025
Industry
Biotech
Headquarters
Natick, Massachusetts
Notable investors
Cystic Fibrosis Foundation, RA Capital, TPG

Frequently asked about Sionna Therapeutics funding

How much has Sionna Therapeutics raised?
Sionna Therapeutics has raised $500M in total disclosed funding across the rounds on record.
Who has invested in Sionna Therapeutics?
Cystic Fibrosis Foundation, RA Capital, TPG are named among the investors backing Sionna Therapeutics.
What was the latest Sionna Therapeutics funding round?
The most recent disclosed round is an IPO, announced in January 2025.
Where is Sionna Therapeutics based?
Sionna Therapeutics is based in Natick, Massachusetts.
What sector does Sionna Therapeutics operate in?
Sionna Therapeutics is tracked under Biotech from Natick, Massachusetts, with $500M in disclosed funding.
When did Sionna Therapeutics last raise?
The last disclosed Sionna Therapeutics round closed in January 2025 at IPO.

Round data for Sionna Therapeutics is compiled from public filings and announcements; blank fields mean nothing has been disclosed rather than nothing exists. Continue with the Biotech companies in Natick and backer lists below.

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