United States · Series C startup
Funding summaryUpdated 26 Oct 2026
$126Mraised across 3 rounds since 2015, from 3 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Source recordedSEC filing: $80M sold, first sale Feb 2021
Venrock
Osage University Partners
Lightstone VenturesReported by FinSMEsSEC filing: $20M sold, first sale Sept 2019
No investor was named in the report.
From a historical funding recordSEC filing: $5.7M sold, first sale Oct 2015
From the SEC filings it signed: 3 on the team.
On the board, as filediJanwillem NaesensJean GeorgeJoseph S. ZakrzewskiKaren HongRacquel BrackenSusan S. MolineauxTimothy S. Romberger
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
VenrockNovo HoldingsmL
RA Capital Management
Novo Holdings
Janus Henderson InvestorsOsage University PartnersLightstone VenturesCelgene CorporationDROIA Oncology VenturesMissing a round, or an investor who was in one? Tell us.
This firm lists Cyteir Therapeutics 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.
Cyteir Therapeutics's investors include Venrock, Novo Holdingsm, RA Capital Management, Novo Holdings and Janus Henderson Investors, and 4 more on record.
Cyteir Therapeutics has raised $126M across 3 rounds since 2015.
Cyteir Therapeutics's most recent round was a Series C of $80M in Feb 2021.
Its most recent round, $80M in Feb 2021, is also its largest on record.
Cyteir Therapeutics's first round on record, in Oct 2019, was backed by Novo Holdingsm, Venrock and Osage University Partners and 3 others.
Cyteir Therapeutics's latest named round is a Series C, in Feb 2021.
Cyteir Therapeutics is based in the United States.
Novo Holdingsm led the Undisclosed round in 2019.
In the same sector, and raised in the last eighteen months.
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United States · 
