United States · Funded startup
4 rounds we have observed, with the 10 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
$142Mraised across 4 rounds since 2007, from 4 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.
From a historical funding record
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.
Missing a round, or an investor who was in one? Tell us.
This firm lists Omeros as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Omeros's investors include Stanley Medical Research Institute, ARCH Venture Partners, Novartis Venture Fund, Oxford Finance LLC and Washington Research Foundation, and 5 more on record.
Omeros has raised $142M across 4 rounds since 2007.
Omeros's most recent round was an Undisclosed round of $38M in Mar 2014.
Omeros's largest round on record is $63M (Series E), in Feb 2007.
Omeros's first round on record, in Jan 2007, was backed by Stanley Medical Research Institute.
Omeros's latest named round is an Undisclosed round, in Mar 2014.
Omeros is based in the United States.
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United States · 
