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Third Rock Ventures

Third Rock Ventures

Boston, Massachusettsthirdrockventures.com

Overview

Third Rock Ventures is a venture capital firm focused on life sciences investing and launching companies that make a difference in people's lives.

Year Founded

2007

Portfolio Companies

42

Investments

Third Rock Ventures investments
CompanyDateStageLead
Revolution MedicinesJul 2019Series CCo-investor
InsitroMar 2021Series CCo-investor
Odyssey TherapeuticsSep 2025Series DCo-investor
SepternaJul 2023Series BCo-investor
Seaport TherapeuticsOct 2024Series B-
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Key People

Kevin Starr

Retired Founding Partner

Barbara Weber

Venture Partner

David Moller

Venture Partner

Jeb Keiper

Venture Partner

Jesper Gromada

Venture Partner

Lioudmila Tchistiakova

Venture Partner

Mark A. Goldsmith

Venture Partner

Philip Reilly

Venture Partner

Richard Ransohoff

Venture Partner

Steven Paul

Venture Partner

Vyas Ramanan

Venture Partner

Walter Kowtoniuk

Venture Partner

Abbie Celniker

Partner

Alan Ezekowitz

Advisory Partner

Andrea van Elsas

Partner

Cary Pfeffer

Partner

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Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

Portfolio analytics

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

Portfolio analytics

Caplight clients see yearly investment pace and funding raised over time.

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FAQ

Where is Third Rock Ventures based?

Third Rock Ventures is headquartered in Boston, Massachusetts, United States.

When was Third Rock Ventures founded?

Third Rock Ventures was founded in 2007.

How many portfolio companies does Third Rock Ventures have?

Third Rock Ventures has 42 portfolio companies in Caplight's dataset.

What are some companies in Third Rock Ventures's portfolio?

Portfolio companies visible on Caplight include Revolution Medicines, Insitro, Odyssey Therapeutics, Septerna, Seaport Therapeutics.

What was Third Rock Ventures's most recent investment shown here?

Third Rock Ventures's most recent investment in this portfolio sample was in Odyssey Therapeutics in 2025.

What sectors does Third Rock Ventures focus on?

Third Rock Ventures focuses on Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Frontier & Industrial Tech, Energy & Sustainability, Frontier & Industrial Tech, Healthcare & Life Sciences, Enterprise Software, AI, Data & Cloud Infrastructure.

What company stages does Third Rock Ventures focus on?

Third Rock Ventures typically invests at the Early stage.

What is Third Rock Ventures's AUM?

Third Rock Ventures's assets under management are estimated between $1.0B and $10.0B.

Firmographic Details

HeadquartersBoston, Massachusetts
Year Founded2007

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