Companies / Star Therapeutics

Star Therapeutics

South San Francisco, United States

STAR Therapeutics discovers and develops antibody therapies for patients with serious diseases

Star Therapeutics, based in South San Francisco, United States, has 10 investors on file, among them Agent Capital, Catalio Capital Management and Frazier Life Sciences. Its latest round on record is Series C+, 23 Oct 2026, of 3 rounds. Its site was last checked 12 Nov 2026: site answers.

star-therapeutics.com

Funding

3 rounds on record

Latest roundSeries C+23 Oct 2026

Since that round1 monthno later round on record

Time between rounds11 monthson average, over 3 rounds

Investors in its rounds158 with a VCinfo profile

Oct 2026Series C+Led by Janus Henderson Investors, OrbiMed, with RA Capital, Agent Capital, Catalio Capital Management, NYBC Ventures, Soleus Capital, New Leaf Venture Partners and 3 others

Sept 2025Series C+Led by Sanofi Ventures, with Frazier Life Sciences and 3 others

Jan 2025Series BLed by Sanofi Ventures, with Frazier Life Sciences and 3 others

Round sizes and total raised are on Fundup AI, our sister product for funding data.

SEC Form D filings

1 filing

$125M sold6 Oct 2025

Filed by Star Therapeutics LLC with the SEC. A Form D reports a private offering; it is not a priced round.

Investors

10 investors on file

Investor	Evidence	Type
Agent Capital	Page + round	Venture capital
Catalio Capital Management	Page + round	Venture capital
Frazier Life Sciences	Page + round	Venture capital
New Leaf Venture Partners	Portfolio page	Venture capital
NYBC Ventures	Portfolio page	Corporate VC
RA Capital	Page + round	Venture capital
Sanofi Ventures	Page + round	Corporate VC
Sofinnova	Portfolio page	Venture capital
Soleus Capital	Portfolio page	Venture capital
Westlake BioPartners	Portfolio page	Venture capital

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

At a glance

Latest round: Series C+, 23 Oct 2026
Investors on file: 10
Employees: 11-50
Headquarters: South San Francisco, United States
Site: Answers
Last checked: 12 Nov 2026

Company data by Fundup AI.

Backed by the same investors

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Alentis Therapeutics3 shared

Claris Bio3 shared

Diagonal Therapeutics3 shared

Expedition Therapeutics3 shared

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