Fundraising Fox
Cary Pfeffer
InvestorPartner at Third Rock Ventures
Boston, Massachusetts
Writes $100K – $5M checks · typically $1.5M
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About
Physician who joined Third Rock in 2007 and led partner development efforts, building relationships with biotech and pharma executives and serving as CBO or CEO of portfolio companies at launch, including work on the Agios-Celgene collaboration. Holds a B.A. from Columbia, an M.D. and MBA from the University of Pennsylvania.
Contact· published on Cary's own website
Invests in
Biotech
Deals · 3
Rheos MedicinesBoard seat
via Third Rock Ventures · filed Nov 2018
Jounce TherapeuticsBoard seat
via Third Rock Ventures · filed Apr 2015 · $56M raise
Faze MedicinesQuoted
via Third Rock Ventures · filed Dec 2020
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Investor
AblexisCasma TherapeuticsSesen BioTaris Biomedical
Sources: SEC Form D filings · curated public sources.
Colleagues at Third Rock Ventures
Network5
Investors connected to Cary in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Cary Pfeffer?
- Physician who joined Third Rock in 2007 and led partner development efforts, building relationships with biotech and pharma executives and serving as CBO or CEO of portfolio companies at launch, including work on the Agios-Celgene collaboration. Holds a B.A. from Columbia, an M.D. and MBA from the University of Pennsylvania.
- Where does Cary Pfeffer work?
- Cary Pfeffer is Partner at Third Rock Ventures.
- What does Cary Pfeffer invest in?
- Cary Pfeffer invests in Biotech.
- What check size does Cary Pfeffer write?
- Cary Pfeffer typically writes checks of $100K – $5M.
- What boards does Cary Pfeffer sit on?
- Cary Pfeffer holds tracked board seats at Jounce Therapeutics, Rheos Medicines.
- What companies has Cary Pfeffer invested in?
- Investments tracked here include Ablexis, Casma Therapeutics, Faze Medicines, Sesen Bio, Taris Biomedical.
About this profile. Compiled from public sources — Third Rock Ventures's own website, regulatory filings and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights