United States · Series D startup
5 rounds we have observed, with the 13 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
$127Mraised across 5 rounds since 2007, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Bessemer Venture Partners
Deerfield
MPM Capital
Intersouth Partners
TVM Capital
Abingworth
Skyline VenturesFrom a historical funding recordSEC filing: $30M sold, first sale May 2014
No investor was named in the report.
From a historical funding recordSEC filing: $4.3M sold, first sale Sept 2013
No investor was named in the report.
Reported by fiercebiotech.comSEC filing: $15M sold, first sale Aug 2011
Reported by proteontherapeutics.com
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Intersouth PartnersTVM CapitalSkyline VenturesBessemer Venture Partners
Prism Venture PartnersDevon Park BioVenturesDeerfieldMPM CapitalAbingworthPrism VentureWorksMissing a round, or an investor who was in one? Tell us.
Proteon Therapeutics's investors include Intersouth Partners, TVM Capital, Skyline Ventures, Bessemer Venture Partners and Prism Venture Partners, and 8 more on record.
Proteon Therapeutics has raised $127M across 5 rounds since 2007.
Proteon Therapeutics's most recent round was a Series D of $45M in May 2014.
Proteon Therapeutics's largest round on record is $50M (Series B), in May 2009.
Proteon Therapeutics's first round on record, in Sept 2007, was backed by Intersouth Partners, TVM Capital and Prism Venture Partners and 1 others.
Proteon Therapeutics's latest named round is a Series D, in May 2014.
Proteon Therapeutics is based in the United States.
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United States ·