The Klarman Family Foundation
Private foundation Boston, MA klarmanfoundation.org Still adding venture funds
The Klarman Family Foundation reports 43 venture funds, $156M in all; 4 are new since its last report.
Holdings are from its Form 990-PF return for the year ending December 31, 2024, compared with the one for December 31, 2023. That is more than a year ago: it may have added or sold funds since. Foundations file up to ten and a half months after their year ends, and the IRS publishes returns months after that. “Still adding venture funds”: 4 funds on this one were not on the one for December 31, 2023.
The numbers
| Vintage | Venture funds |
|---|---|
| 2008 | 1 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 2 |
| 2013 | 0 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 5 |
Updates from The Klarman Family Foundation
Largest venture holdings
From its Form 990-PF return for the year ending December 31, 2024; “New” is a fund that wasn’t on the return before it.
| Fund, as reported | Manager | Vintage | Year-end value |
|---|---|---|---|
| Magma Venture Capital III Fund | — | 2012 | $14M |
| Breakthrough Energy Ventures II, LP | Breakthrough Energy Ventures | 2020 | $13M |
| BoxGroup Four, LP | BoxGroup | 2019 | $10M |
| Third Rock Ventures V, LP | Third Rock Ventures | 2019 | $9.3M |
| Magma Venture Capital IV Fund | — | 2014 | $8.6M |
In the app: 38 more venture funds. Open The Klarman Family Foundation in LP Intelligence for every fund it holds and how to reach it, or find the LPs that back firms like yours.
LPs nearby
Within 100 miles, by city: a trip to one can take in the others.
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80 LPs within 100 miles in all: see them on the map.
About this data
Holdings as this foundation lists them on its Form 990-PF (Part II, lines 13 and 15). Amounts are year-end fair market value, or book value where it gives no other, not commitments or returns. As of December 31, 2024; new holdings are those not on its return for the year ending December 31, 2023. Source: IRS Form 990-PF. Funds are linked to a manager by name; a match can be wrong, and the original filing is the record. How Hottub reads its sources.
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