United States · 
Who invested in Annexon?
Annexon's investors include Novartis Venture Fund, Clarus Ventures and Satter Investment Management.
201220132014
$1000KSeed$34MSeries AUnited States · Series A startup
Who invested in Annexon
2 rounds we have observed, with the 3 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 27 Oct 2026
$35Mraised across 2 rounds since 2011, from 2 sources
$1000KSeed$34MSeries A
- Latest round
- Series A, $34MDec 2014
- Step-upi
- 34×
- Investors
- 3
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed, $1000K Aug 2011
- Biggest round
- $34M Series A · Dec 2014
- Between rounds
- 3.3 years from the last two
The rounds
- Dec 2014Series A$34M3 new
From a historical funding record
- Aug 2011Seed$1000K
No investor was named in the report.
Reported by sec.govSEC filing: $1000K sold, first sale Aug 2011
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Satter Investment ManagementVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Annexon
How much has Annexon raised?
Annexon has raised $35M across 2 rounds since 2011.
When did Annexon last raise?
Annexon's most recent round was a Series A of $34M in Dec 2014.
What was Annexon's biggest round?
Its most recent round, $34M in Dec 2014, is also its largest on record.
Who backed Annexon first?
Annexon's first round on record, in Dec 2014, was backed by Novartis Venture Fund, Clarus Ventures and Satter Investment Management.
What stage is Annexon at?
Annexon's latest named round is a Series A, in Dec 2014.
Where is Annexon based?
Annexon is based in the United States.
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