Third Rock Ventures VI, L.P.
Third Rock Ventures · adviser of record: Third Rock Ventures, LLC · 2022 vintage
Third Rock Ventures VI, L.P. is a 2022 venture fund managed by Third Rock Ventures, with $1.11bn raised (Form D, amount sold). It reported $787mm in gross assets at year-end 2025, 0.71x its size, against a peak of $1.11bn in 2022.
- Latest value held
- $787mm year-end 2025
- Peak
- $1.11bn year-end 2022
- Fund size
- $1.11bn Form D, amount sold
- Held vs. size
- 0.71x peak 1.01x
Value held by year-end
Gross asset value reported on Form ADV at each year-end. Dashed line: fund size. Open in the Fund Tracker
| Year-end | Gross assets | ÷ size | Change |
|---|---|---|---|
| 2025 | $787mm | 0.71x | -29% over 2 yrs |
| 2023 | $1.11bn | 1.01x | -0% |
| 2022 | $1.11bn | 1.01x | – |
Other funds from Third Rock Ventures
- Third Rock Ventures V, L.P. 2019
- Third Rock Ventures IV, L.P. 2016
- Third Rock Ventures III, L.P. 2012
- Third Rock Ventures II, L.P. 2011
- Third Rock Ventures, L.P. 2011
About these numbers
Gross asset value is what the manager reports holding in the fund at each fiscal year-end, on SEC Form ADV, Schedule D. It includes the GP’s own commitment and is before carried interest, so it is not the LPs’ net return, and it does not show cash already distributed. A fall in value can mean distributions, markdowns or both. Fund size is the amount sold reported on Form D, which for some funds reflects only a first close. Private fund ID 805-4819254629. Data updated October 13, 2026.
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