Who invested in Optherion

2 rounds we have observed, with the 7 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.

Biotech

Funding summaryUpdated 26 Oct 2026

$42Mraised across 2 rounds since 2007, from 2 sources

$37MSeries A$5.0MDebt

Latest round: Debt, $5.0MSept 2009
Biggest round: $37MSeries A · Oct 2007
Investors: 7

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.

20082009

$37MSeries A$5.0MDebt

First round: Series A, $37M
Biggest round: $37M
Between rounds: 23 months

The rounds

Sept 2009
Debt$5.0M
No investor was named in the report.
From a historical funding recordSEC filing: $5.0M sold, first sale Sept 2009
Oct 2007
Series A$37M7 new
From a historical funding record

Founders and team

From the SEC filings it signed: 3 on the team.

Colin FosterExecutive Officer, Director, Promoteri
David I. ScheerDirector, Promoteri
George ElstonExecutive Officeri

On the board, as filediBrian K. HalakEileen MoreSherrill P. Neff

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.

Series A2007Debt2009

Domain Associates

Johnson & Johnson Development Corporation (JJDC)

Quaker Partners

Pappas Ventures

GE HealthcareBiogen Idec New VenturesPurdue Pharmaceutical

Everyone who backed them

Domain AssociatesVC firm1round

Johnson & Johnson Development Corporation (JJDC)VC firm1round

Quaker PartnersVC firm1round

Pappas VenturesVC firm1round

GE HealthcareCorporate VC1round

Biogen Idec New VenturesGrowth equity1round

Purdue PharmaceuticalInvestment firm1round

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

Quick answers about Optherion

Who invested in Optherion?

Optherion's investors include Domain Associates, Johnson & Johnson Development Corporation (JJDC), Quaker Partners, Pappas Ventures and GE Healthcare, and 2 more on record.

How much has Optherion raised?

Optherion has raised $42M across 2 rounds since 2007.

When did Optherion last raise?

Optherion's most recent round was a Debt of $5.0M in Sept 2009.

What was Optherion's biggest round?

Optherion's largest round on record is $37M (Series A), in Oct 2007.

Who backed Optherion first?

Optherion's first round on record, in Oct 2007, was backed by Domain Associates, Johnson & Johnson Development Corporation (JJDC) and Quaker Partners and 4 others.