United States · Series B startup

Who invested in Altair Therapeutics

2 rounds we have observed, with the 4 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.

Funding summaryUpdated 26 Oct 2026

$23Mraised across 2 rounds since 2009, from 2 sources

$6.5MVenture$17MSeries B
Latest round
Series B, $17MFeb 2010
Step-upi
2.6×
Investors
4
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2010
$6.5MVenture$17MSeries B
First round
Venture, $6.5M
Nov 2009
Biggest round
$17M
Series B · Feb 2010
Between rounds
3 months
from the last two

The rounds

  1. Feb 2010
    Series B$17M4 new

    Reported by onbiovc.comSEC filing: $6.5M sold, first sale Nov 2009

  2. Nov 2009
    Venture$6.5M

    No investor was named in the report.

    From a historical funding recordSEC filing: $6.5M sold, first sale Nov 2009

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

Domain AssociatesVC firm1round
Forward VenturesAccelerator1round
GeneChemGrowth equity1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about Altair Therapeutics

Who invested in Altair Therapeutics?

Altair Therapeutics's investors include Domain Associates, Forward Ventures, Thomas, McNerney & Partners and GeneChem.

How much has Altair Therapeutics raised?

Altair Therapeutics has raised $23M across 2 rounds since 2009.

When did Altair Therapeutics last raise?

Altair Therapeutics's most recent round was a Series B of $17M in Feb 2010.

What was Altair Therapeutics's biggest round?

Its most recent round, $17M in Feb 2010, is also its largest on record.

Who backed Altair Therapeutics first?

Altair Therapeutics's first round on record, in Feb 2010, was backed by Domain Associates, Forward Ventures and Thomas, McNerney & Partners and 1 others.

What stage is Altair Therapeutics at?

Altair Therapeutics's latest named round is a Series B, in Feb 2010.

Where is Altair Therapeutics based?

Altair Therapeutics is based in the United States.

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