Fundraising Fox

David Grayzel

Investor

Managing Director at Atlas Venture

Cambridge, Massachusetts, United States

Writes $500K – $5M checks · typically $2M

About

David Grayzel is a physician-turned-VC who repeatedly co-founds biotech companies and serves as CEO or chair, focusing on immune-system therapeutics in autoimmunity and oncology (Surface Oncology, Q32 Bio, Comanche Biopharma).

Invests in

BiotechHealthtech

Experience

  1. Atlas VenturePartnercurrent2014 — presentCambridge, MA
  2. Atlas Venture Development Corp.Managing Directorcurrent2010 — present
  3. Infinity PharmaceuticalsVP Clinical Development and Medical Affairs2002 — 2010
  4. Dyax CorpDirector Corporate Development and Business Operations2000 — 2002
  5. Massachusetts General HospitalIntern, Resident1997 — 2000

Education

  1. Harvard Medical SchoolMD1992 — 1997
  2. Stanford UniversityBA

Same school

Shared employers

Deals · 4

Triana Biomedicines, Inc.Board seat

via Atlas Venture · filed Dec 2025 · $120.1M raise

Xilio TherapeuticsBoard seat

via Atlas Venture · filed Feb 2021 · $95M raise

Aerovate Therapeutics, Inc.Board seat

via Atlas Venture · filed Aug 2020 · $75.8M raise

Akriveia TherapeuticsBoard seat

via Atlas Venture · filed Jan 2018 · $22.5M raise

Attribution from SEC filings, press coverage, and firm rosters.

Colleagues at Atlas Venture

Network5

Investors connected to David in public investor directories — a warm-intro map.