Private company

Third Rock Ventures

Logo: Third Rock Ventures, Public domain, via Wikimedia Commons3

Venture capital firm

Third Rock Ventures is a venture capital firm with offices in Boston and San Francisco. Founded in 2007, the firm invests in biotechnology startups.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2007Founded1

Third Rock Ventures is a venture capital firm with offices in Boston and San Francisco. Founded in 2007, the firm invests in biotechnology startups.2

Corporate structure

Third Rock Ventures is part of a group headed by Third Rock Ventures Holdings, L.P.. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Third Rock Ventures

  • Robert Ira Tepper Owns control (general partner, trustee or manager) of Third Rock, since 12/2014 (Form ADV)
  • Reid M Huber Owns control (general partner, trustee or manager) of Third Rock, since 01/2022 (Form ADV)
  • Jeffrey K Tong Owns control (general partner, trustee or manager) of Third Rock, since 01/2022 (Form ADV)
  • Kevin Michael Gillis Owns control (general partner, trustee or manager) of Third Rock, since 01/2022 (Form ADV)
  • Abbie Celniker Owns control (general partner, trustee or manager) of Third Rock, since 01/2022 (Form ADV)
  • Third Rock Ventures Holdings, L.P.
    • Third Rock Ventures

Built from major holders from Schedules 13D and 13G; owners and owned firms from Form ADV, the registration investment advisers file with the SEC. Each entity in the chart links to its source.

Investment adviser

Third Rock Ventures is registered with the SEC as an investment adviser. This is what it reports on Form ADV, the registration every adviser files and keeps current.

Who owns it

Owners of 5% or more as the firm lists them (Schedule A), and the owners of those owners up the chain (Schedule B).

  • THIRD ROCK VENTURES HOLDINGS, L.P.owns 75% or more, since 12/2014
  • Abbie Celnikerowns general partner, trustee or manager of THIRD ROCK, since 01/2022
  • Kevin Michael Gillisowns general partner, trustee or manager of THIRD ROCK, since 01/2022
  • Reid M Huberowns general partner, trustee or manager of THIRD ROCK, since 01/2022
  • Robert Ira Tepperowns general partner, trustee or manager of THIRD ROCK, since 12/2014
  • Jeffrey K Tongowns general partner, trustee or manager of THIRD ROCK, since 01/2022

Timeline

  1. 2007Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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