United States · Series C startup
Funding summaryUpdated 26 Oct 2026
$120Mraised across 6 rounds since 2009, from 6 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by FinSMEs
Polaris Partners
Temasek Holdings
Alexandria Real Estate Equities
Omega Funds
Merck Global Health Innovation Fund
Vertex Holdings
Cycad GroupFrom a historical funding record
Reported by finsmes.comSEC filing: $34M sold, first sale May 2012
Reported by sec.govSEC filing: $26M sold, first sale May 2012
Reported by sec.govSEC filing: $6.0M sold, first sale Sept 2010
No investor was named in the report.
From a historical funding record
From the SEC filings it signed: 2 on the team.
On the board, as filediAlan J.G. CraneEdward J.G. KaniaKevin J.G. BittermanRam J.G. Sasisekharan
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Polaris PartnersOmega Funds
Lux CapitalFlagship Pioneering, LLC
Gates FoundationTemasek HoldingsAlexandria Real Estate EquitiesFlagship Ventures
Flagship PioneeringMerck Global Health Innovation FundMissing a round, or an investor who was in one? Tell us.
Visterra's investors include Polaris Partners, Omega Funds, Lux Capital, Flagship Pioneering, LLC and Gates Foundation, and 10 more on record.
Visterra has raised $120M across 6 rounds since 2009.
Visterra's most recent round was a Series C of $47M in Oct 2017.
Its most recent round, $47M in Oct 2017, is also its largest on record.
Visterra's first round on record, in Aug 2010, was backed by Polaris Partners, Lux Capital and Flagship Pioneering, LLC.
Visterra's latest named round is a Series C, in Oct 2017.
Visterra is based in the United States.
In the same sector, and raised in the last eighteen months.
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United States · 
