Annexon Biosciences Funding: $634M Raised

Annexon Biosciences is based in South San Francisco, California. It has raised $634M in total funding.

Annexon Biosciences funding overview

Annexon Biosciences is based in South San Francisco, California. Annexon Biosciences has raised $634M in total disclosed funding. That places its disclosed total in the $250M–$1B range.

Annexon Biosciences at a glance

Total raised
$634M
Headquarters
South San Francisco, California

Frequently asked about Annexon Biosciences funding

How much has Annexon Biosciences raised?
Annexon Biosciences has raised $634M in total disclosed funding across the rounds on record.
Who has invested in Annexon Biosciences?
No investors are named on the public record for Annexon Biosciences yet.
What was the latest Annexon Biosciences funding round?
No round stage has been disclosed for Annexon Biosciences.
Where is Annexon Biosciences based?
Annexon Biosciences is based in South San Francisco, California.

We update the Annexon Biosciences record whenever a new round is filed or announced, so the totals above track the public record rather than estimates. Related companies in South San Francisco and their backers are listed below.

Companies related to Annexon Biosciences (18)

Browse related funding lists (1)

Company funding database · Investor directory · Founder database · Mega-rounds 2026

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