Mass General Brigham Fund III, L.P.
Mass General Brigham Ventures · adviser of record: Mass General Brigham Ventures, LLC · 2020 vintage
Mass General Brigham Fund III, L.P. is a 2020 venture fund managed by Mass General Brigham Ventures, with $250mm raised (Form D, amount sold). It reported $70.5mm in gross assets at year-end 2025, 0.28x its size, against a peak of $243mm in 2023.
- Latest value held
- $70.5mm year-end 2025
- Peak
- $243mm year-end 2023
- Fund size
- $250mm Form D, amount sold
- Held vs. size
- 0.28x peak 0.97x
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 | $70.5mm | 0.28x | -71% over 2 yrs |
| 2023 | $243mm | 0.97x | +16% |
| 2022 | $210mm | 0.84x | +0% |
| 2021 | $210mm | 0.84x | +0% |
| 2020 | $210mm | 0.84x | – |
Other funds from Mass General Brigham Ventures
All Mass General Brigham Ventures funds
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 805-1912266556. Data updated October 13, 2026.
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