Who invested in ImpactRx?
ImpactRx's investors include Oxford Bioscience Partners, Mediphase Venture Partners and Merck.

United States · Series E startup
Funding summaryUpdated 26 Oct 2026
$4.2Mraised across 3 rounds since 2002, from 3 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
No investor was named in the report.
Reported by finsmes.comSEC filing: $678K sold, first sale Dec 2009
From a historical funding record
From the SEC filings it signed: 1 on the team.
On the board, as filediLawrence G. MillerPer G. H. LofbergRenee G. Aguiar-Lucander
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
From historical deal records. Wrong? Tell us.
ImpactRx's investors include Oxford Bioscience Partners, Mediphase Venture Partners and Merck.
ImpactRx has raised $4.2M across 3 rounds since 2002. One round did not disclose an amount, so the total is a floor.
ImpactRx's most recent round was a Series E of $1.2M in Jan 2010.
ImpactRx's largest round on record is $3.0M (Venture), in Jul 2003.
ImpactRx's first round on record, in May 2002, was backed by Oxford Bioscience Partners and Mediphase Venture Partners.
ImpactRx's latest named round is a Series E, in Jan 2010.
ImpactRx is based in the United States.
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