Flagship Ventures Fund IV, L.P.
Flagship Pioneering · adviser of record: Flagship Pioneering, Inc. · 2011 vintage
Flagship Ventures Fund IV, L.P. is a 2011 venture fund managed by Flagship Pioneering. It reported $180mm in gross assets at year-end 2025, against a peak of $2.5bn in 2022.
- Latest value held
- $180mm year-end 2025
- Peak
- $2.5bn year-end 2022
- 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 | $180mm | – | -78% over 2 yrs |
| 2023 | $816mm | – | -67% |
| 2022 | $2.5bn | – | +54% |
| 2021 | $1.62bn | – | -31% |
| 2020 | $2.4bn | – | +43% |
| 2019 | $1.65bn | – | -7% |
| 2018 | $1.77bn | – | +16% |
| 2017 | $1.52bn | – | +22% |
| 2016 | $1.25bn | – | +6% |
| 2015 | $1.18bn | – | +4% |
| 2014 | $1.13bn | – | +144% |
| 2013 | $464mm | – | +74% |
| 2012 | $267mm | – | +17% |
| 2011 | $227mm | – | – |
What public pensions report
| Investor | As of | Commitment | Cash back (DPI) | Total (TVPI) | Still held |
|---|---|---|---|---|---|
| Michigan SMRS | 2025-12-31 | – | – | – | $8.9mm |
Latest report from each pension, as multiples of paid-in capital. Where a pension reports only the value it holds, that value is shown in dollars under Still held. Linked dates go to the pension’s report.
Other funds from Flagship Pioneering
- Flagship Pioneering Fund VIII, L.P. 2023
- ET Fund 2023
- FPN III, L.P. 2022
- FPN II, L.P. 2021
- Fpa, L.P. 2021
- Flagship Pioneering Fund VII, L.P. 2020
- FPN, L.P. 2020
- Flagship Labs VII LLC 2020
- Flagship Pioneering Special Opportunities Fund II, L.P. 2018
- Nutritional Health LTP Fund, L.P. 2018
- Flagship Pioneering Fund VI, L.P. 2017
- Flagship Venturelabs VI LLC 2017
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 805-3324683136. Data updated October 13, 2026.
Is this your fund?
Spot an error and email a correction. Facing DPI pressure? See how distribution financing works.