Who has invested in Sionna Therapeutics?

Cystic Fibrosis Foundation, RA Capital, TPG are named among the investors backing Sionna Therapeutics.

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

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.

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

Sionna Therapeutics funding overview

Sionna Therapeutics at a glance

Frequently asked about Sionna Therapeutics funding

Sionna Therapeutics founders (1)

Companies related to Sionna Therapeutics (30)

Browse related funding lists (5)