United States · 
Who invested in Eiger BioPharmaceuticals?
Eiger BioPharmaceuticals's investors include InterWest Partners and Vivo Ventures.
2009201020112012201320142015
$8.3MSeries A$5.3MSeries A$5.8MSeries A?Venture$6.0MDebtUnited States · Funded startup
Who invested in Eiger BioPharmaceuticals
5 rounds we have observed, with the 2 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 31 Oct 2026
$25Mraised across 5 rounds since 2009, from 5 sources
$8.3MSeries A$5.3MSeries A$5.8MSeries A$6.0MDebt
- Latest round
- Debt, $6.0MNov 2015
- Biggest round
- $8.3MSeries A · Feb 2009
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $8.3M Feb 2009
- Biggest round
- $8.3M Series A · Feb 2009
- Usual gap between rounds
- 19 months the median of 3
The rounds
- Nov 2015Debt$6.0M
No investor was named in the report.
From a historical funding recordSEC filing: $6.0M sold, first sale Nov 2015
- Nov 2015VentureAmount undisclosed
No investor was named in the report.
From a historical funding recordSEC filing: $6.0M sold, first sale Nov 2015
- Apr 2014Series A$5.8M2 returning
From a historical funding recordSEC filing: $5.8M sold, first sale Apr 2011
- May 2013Series A$5.3M1 returning
Reported by sec.govSEC filing: $5.3M sold, first sale Apr 2011
- Feb 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.
The exit
ExitBuyerPriceWhen
AcquiredCelladonundisclosedNov 2015
From historical deal records. Wrong? Tell us.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about Eiger BioPharmaceuticals
How much has Eiger BioPharmaceuticals raised?
Eiger BioPharmaceuticals has raised $25M across 5 rounds since 2009. One round did not disclose an amount, so the total is a floor.
When did Eiger BioPharmaceuticals last raise?
Eiger BioPharmaceuticals's most recent round was a Debt of $6.0M in Nov 2015.
What was Eiger BioPharmaceuticals's biggest round?
Eiger BioPharmaceuticals's largest round on record is $8.3M (Series A), in Feb 2009.
Who backed Eiger BioPharmaceuticals first?
Eiger BioPharmaceuticals's first round on record, in Feb 2009, was backed by InterWest Partners and Vivo Ventures.
What stage is Eiger BioPharmaceuticals at?
Eiger BioPharmaceuticals's latest named round is a Debt, in Nov 2015.
Where is Eiger BioPharmaceuticals based?
Eiger BioPharmaceuticals is based in the United States.
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