Third Rock Ventures, L.P.
Third Rock Ventures · adviser of record: Third Rock Ventures, LLC · 2011 vintage
Third Rock Ventures, L.P. is a 2011 venture fund managed by Third Rock Ventures. It reported $40.7mm in gross assets at year-end 2025, against a peak of $1.02bn in 2014.
- Latest value held
- $40.7mm year-end 2025
- Peak
- $1.02bn year-end 2014
- Fund size
- Not on file
Value held by year-end
Gross asset value reported on Form ADV at each year-end. Open in the Fund Tracker
| Year-end | Gross assets | ÷ size | Change |
|---|---|---|---|
| 2025 | $40.7mm | – | +47% over 2 yrs |
| 2023 | $27.8mm | – | -0% |
| 2022 | $27.8mm | – | -3% |
| 2021 | $28.7mm | – | -18% |
| 2020 | $34.9mm | – | -80% |
| 2019 | $175mm | – | +38% |
| 2018 | $127mm | – | -58% |
| 2017 | $301mm | – | +1% |
| 2016 | $298mm | – | -23% |
| 2015 | $387mm | – | -62% |
| 2014 | $1.02bn | – | +65% |
| 2013 | $622mm | – | +58% |
| 2012 | $393mm | – | +14% |
| 2011 | $344mm | – | – |
Other funds from Third Rock Ventures
- Third Rock Ventures VI, L.P. 2022
- 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
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 805-4990355381. Data updated October 13, 2026.
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