United States · Series B startup

Who invested in VentiRx Pharmaceuticals

5 rounds we have observed, with the 5 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.

Pharma

Funding summaryUpdated 26 Oct 2026

$140Mraised across 5 rounds since 2006, from 5 sources

$2.3MSeed$27MSeries A$25MSeries A$35MVenture$51MSeries B
Latest round
Series B, $51MSept 2014
Step-upi
1.4×
Investors
5
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.

20062008201020122014
$2.3MSeed$27MSeries A$25MSeries A$35MVenture$51MSeries B
First round
Seed, $2.3M
Jan 2006
Biggest round
$51M
Series B · Sept 2014
Usual gap between rounds
2.8 years
the median of 4

The rounds

  1. Sept 2014
    Series B$51M5 returning

    From a historical funding recordSEC filing: $51M sold, first sale Jan 2010

  2. Oct 2012
    Venture$35M1 new

    Reported by pevc.dowjones.com

  3. Jan 2010
    Series A$25M1 new3 returning

    Reported by fis.dowjones.comSEC filing: $13M sold, first sale Jan 2010

  4. Mar 2007
    Series A$27M3 new

    From a historical funding record

  5. Jan 2006
    Seed$2.3M

    No investor was named in the report.

    From a historical funding record

Founders and team

From the SEC filings it signed: 2 on the team.

  • Kathleen M. FanningExecutive Officeri
  • Robert M. HershbergExecutive Officer, Directori

On the board, as filediAtul M. SaranKent M. SnyderNicole M. VitulloPatrick M. HeronRon M. LauferSteven M. Gillis

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

ARCH Venture PartnersVC firm3rounds
Domain AssociatesVC firm3rounds
Frazier Healthcare PartnersPrivate equity3rounds
MedImmune VenturesCorporate VC2rounds
CelgeneGrowth equity2rounds

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

Quick answers about VentiRx Pharmaceuticals

Who invested in VentiRx Pharmaceuticals?

VentiRx Pharmaceuticals's investors include ARCH Venture Partners, Domain Associates, Frazier Healthcare Partners, MedImmune Ventures and Celgene.

How much has VentiRx Pharmaceuticals raised?

VentiRx Pharmaceuticals has raised $140M across 5 rounds since 2006.

When did VentiRx Pharmaceuticals last raise?

VentiRx Pharmaceuticals's most recent round was a Series B of $51M in Sept 2014.

What was VentiRx Pharmaceuticals's biggest round?

Its most recent round, $51M in Sept 2014, is also its largest on record.

Who backed VentiRx Pharmaceuticals first?

VentiRx Pharmaceuticals's first round on record, in Mar 2007, was backed by ARCH Venture Partners, Domain Associates and Frazier Healthcare Partners.

What stage is VentiRx Pharmaceuticals at?

VentiRx Pharmaceuticals's latest named round is a Series B, in Sept 2014.

Where is VentiRx Pharmaceuticals based?

VentiRx Pharmaceuticals is based in the United States.

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