The Andrew David Heitman Foundation concentrates almost all of its giving on brain aneurysm research and related clinical work, primarily funding medical institutions and disease-focused nonprofits. Its grants are large and targeted, with repeat major support for Massachusetts General Hospital and a significant gift to the Brain Aneurysm Foundation, indicating a priority on advancing research, treatment, and patient-focused advocacy in this specific neurological area.
Highly concentrated, few but large grants; repeat funding to the same core clinical grantee; focused geographic/issue emphasis rather than broad diversified giving.
The Andrew David Heitman Foundation’s recent giving is defined by major support for brain aneurysm research, with a $900,000 grant in 2024 to Massachusetts General Hospital for that purpose. The pattern is narrow and disease-specific: its grants go to medical institutions and nonprofit organizations working on aneurysm research, treatment, and related patient support. Two recipients stand out in the recent record. Massachusetts General Hospital received another large grant of $300,000 in 2023, reinforcing a continuing relationship with a major Boston medical center. The Brain Aneurysm Foundation also appears in the recent grants list, showing that the foundation funds both clinical research settings and an advocacy-oriented nonprofit focused on the same condition. A smaller grant to The Lisa Foundation extends that same aneurysm research theme beyond Massachusetts. Across the latest grants, the foundation’s funding is concentrated, targeted, and aligned with a single neurological issue rather than a broad set of causes.
In clinical research, the foundation gave $900,000 to Massachusetts General Hospital in 2024 and $300,000 to the same institution in 2023, both for brain aneurysm research. That repeat support points to a sustained interest in hospital-based work on aneurysm pathophysiology, diagnosis, and treatment. Patient-facing support is also part of the pattern. The foundation awarded $125,000 to the Brain Aneurysm Foundation in 2023 and $57,500 in 2024, each for brain aneurysm research. That combination suggests support for both research and the nonprofit infrastructure that serves patients and families affected by aneurysms. The grant to The Lisa Foundation, $25,000 in 2023 for brain aneurysm research, shows that the foundation’s interests extend to specialized nonprofits beyond Massachusetts as long as the work remains tied to aneurysm research.
The typical grant size is $57,500 at the 25th percentile, $125,000 at the median, and $300,000 at the 75th percentile. The recent record includes both a very large award and smaller targeted grants, showing a spread within a tightly focused program. The data also shows repeat support to the same recipient across multiple years, especially Massachusetts General Hospital and the Brain Aneurysm Foundation, which points to ongoing rather than one-off relationships. The foundation is a private grantmaker; it does not fund individuals and does not make program-related investments.
$958K
$0
$343K
$1M
Most grants fall between $58K and $300K, with a median of $125K.
25th Percentile
$58K
Median
$125K
75th Percentile
$300K
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Notable grantees: Massachusetts General Hospital, Brain Aneurysm Foundation
Grantmaking is heavily concentrated in Massachusetts, which accounts for 80% of grants and is the top state by grant count. Boston appears repeatedly through Massachusetts General Hospital, while Hanover appears through the Brain Aneurysm Foundation. One recent grant went outside the state to Frankenmuth, Michigan, showing that the foundation’s local scope still allows some out-of-state support when the work matches its aneurysm research focus. All recent grants in the dataset went to U.S. recipients.
Its recent grants are centered on brain aneurysm research. The latest awards in the dataset all use that purpose text, including support for Massachusetts General Hospital, the Brain Aneurysm Foundation, and The Lisa Foundation.
Yes. Massachusetts General Hospital appears with grants of $900,000 in 2024 and $300,000 in 2023, and the Brain Aneurysm Foundation appears with $125,000 in 2023 and $57,500 in 2024.
The grant-size distribution is $57,500 at the 25th percentile, $125,000 at the median, and $300,000 at the 75th percentile. The recent grants range from $25,000 to $900,000.
Massachusetts is the top state by grant count, with 80% of grants going to recipients in the HQ state. Recent recipients include Boston and Hanover, both in Massachusetts.
2024
Source: IRS Form 990-PF, fiscal year 2024.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| MASSACHUSETTS GENERAL HOSPITAL | BOSTON, MA | $900,000 | 2024 | BRAIN ANEURYSM RESEARCH |
| BRAIN ANEURYSM FOUNDATION | HANOVER, MA | $57,500 | 2024 | BRAIN ANEURYSM RESEARCH |
| MASSACHUSETTS GENERAL HOSPITAL | BOSTON, MA | $300,000 | 2023 | BRAIN ANEURYSM RESEARCH |
| BRAIN ANEURYSM FOUNDATION | HANOVER, MA | $125,000 | 2023 | BRAIN ANEURYSM RESEARCH |
| THE LISA FOUNDATION | FRANKENMUTH, MI | $25,000 | 2023 | BRAIN ANEURYSM RESEARCH |
MASSACHUSETTS GENERAL HOSPITAL
$900,000BRAIN ANEURYSM RESEARCH
BRAIN ANEURYSM FOUNDATION
$57,500BRAIN ANEURYSM RESEARCH
MASSACHUSETTS GENERAL HOSPITAL
$300,000BRAIN ANEURYSM RESEARCH
BRAIN ANEURYSM FOUNDATION
$125,000BRAIN ANEURYSM RESEARCH
THE LISA FOUNDATION
$25,000BRAIN ANEURYSM RESEARCH