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Peter Kolchinsky

Investor

Managing Partner at RA Capital

Boston, Massachusetts

Writes $100K – $5M checks · typically $1.5M

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Contact· published on Peter's own website

Deals · 11

Vaxess Technologies, Inc.Board seat

via RA Capital · filed Mar 2026 · $83.5M raise

Nature's ToolboxBoard seat

via RA Capital · filed Feb 2026 · $15M raise

Freenome HoldingsBoard seat

via RA Capital · filed Dec 2021 · $300M raise

ARS PharmaceuticalsBoard seat

via RA Capital · filed Sep 2021 · $55M raise

IcosavaxBoard seat

via RA Capital · filed Apr 2021 · $99.7M raise

SojournixBoard seat

via RA Capital · filed Nov 2018 · $44M raise

Antera TherapeuticsBoard seat

via RA Capital · filed Sep 2017 · $3.1M raise

Lantos TechnologiesBoard seat

via RA Capital · filed Aug 2017 · $3M raise

G1 TherapeuticsBoard seat

via RA Capital · filed Jul 2016 · $50M raise

CalimmuneBoard seat

via RA Capital · filed May 2015 · $16M raise

Wave Life SciencesBoard seat

via RA Capital · filed Feb 2015 · $11.8M raise

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

Other disclosed investments

Sources: SEC Form D filings · curated public sources.

Colleagues at RA Capital

Aarya Venkat, PhD
Senior Scientist, Protein Design & Modeling at RA Capital
Abigail Greely
IT Business Analyst at RA Capital
Abigail Schmitz
Senior Associate, Corporate Development at RA Capital
Adam Kaye
Senior Managing Director and Partner, Structured Capital at RA Capital
Adam Prince
Senior Associate, Strategic Initiatives at RA Capital
Adam Travis
Vice President, Corporate Development at RA Capital
Adison Greene
Senior Executive Assistant at RA Capital
Adrian Bot
Venture Partner at RA Capital

Network2

Bill Gates
Co-founder of Microsoft; Chair of the Gates Foundation
Amir Nashat
Entrepreneur partner at Polaris Partners focused on healthcare investing and portfolio company executive roles

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

Frequently asked questions

Who is Peter Kolchinsky?
Managing Partner at RA Capital
Where does Peter Kolchinsky work?
Peter Kolchinsky is Managing Partner at RA Capital.
What check size does Peter Kolchinsky write?
Peter Kolchinsky typically writes checks of $100K – $5M.
What boards does Peter Kolchinsky sit on?
Peter Kolchinsky holds tracked board seats at Antera Therapeutics, ARS Pharmaceuticals, Calimmune, Freenome Holdings, G1 Therapeutics, Icosavax, Lantos Technologies, Nature's Toolbox, Sojournix, Vaxess Technologies, Inc..
What companies has Peter Kolchinsky invested in?
Investments tracked here include ARS Pharmaceuticals, Bristol-Myers Squibb, Dicerna Pharmaceuticals, Dyne Therapeutics, Forma Therapeutics, Freenome, G1 Therapeutics, Gameto, Icosavax, Invivyd, Kinnate Biopharma, Medeor Therapeutics, and 8 more.

About this profile. Compiled from public sources — RA Capital'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