The Heartstone Foundation
The Heartstone Foundation is a private foundation, based in Brookline, MA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $13.7M in total assets. In 2025, it awarded 6 grants totaling $874K. Net investment income was $772K.
The Heartstone Foundation at a glance
In short: The Heartstone Foundation gave $874K across 6 grants in 2025 (avg $146K), mostly in New York. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $873,911
- -23.0% vs 2024
- Grants made (2025)
- 6
- +50.0% vs 2024
- Average grant
- $145,652
- -48.7% vs 2024
- Median grant
- $87,500
- Total assets
- $13,694,880
- -1.2% vs 2024
- Primary geography
- New York (57% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who The Heartstone Foundation funds
How this funder distributes its grants
Top Recipients
Top 6 recipients in 2025
The largest 2025 recipient was American Friends of Magen David Adom ($500K). Together the top 6 received $874K.
Grant Size Distribution
17 grants across all recorded years
The most common grant size was in the $100–250K range: 6 grants of 17 (35%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 6 itemized grants.
States
Cities
How The Heartstone Foundation gives
- Giving held roughly steady from 2022 to 2025 (−9%). Method
- In 2025 it paid out 96% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $795K (2020) to $1.1M (2024). In 2025 it made 6 grants totaling $874K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| American Friends of Magen David Adom New York, NY | General Charitable Support | $500,000 |
| Concord Academy Concord, MA | General Charitable Support | $100,000 |
| The Belmont School Deerfield, MA | General Charitable Support | $90,000 |
| Eagle Foundation of Massachusetts Hardwick, MA | General Charitable Support | $85,000 |
| Fidelity Charitable Cincinnati, OH | General Charitable Support | $69,601 |
| Temple Ohabei Shalom Brookline, MA | General Charitable Support | $29,310 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $13,694,880 | $814,961 | $984,319 | $873,911 | 6 | $881,458 | $772,445 | $922,304 |
| 2024 | $13,864,238 | $1,524,324 | $1,385,704 | $1,134,719 | 4 | $1,143,919 | $979,631 | $883,411 |
| 2023 | $13,725,618 | $831,254 | $1,040,564 | $1,000,000 | 2 | $506,625 | $797,315 | $811,187 |
| 2022 | $13,954,706 | $87,071 | $1,056,501 | $960,000 | 3 | $966,923 | $285,340 | $842,003 |
| 2021 | $14,924,136 | $1,053,827 | $901,159 | $825,000 | 2 | $831,625 | $984,293 | $962,422 |
| 2020 | $14,771,468 | $799,378 | $866,657 | $795,000 | 2 | — | $734,346 | $833,896 |
Under IRS private-foundation payout rules, The Heartstone Foundation reported a distributable amount of $922K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Heartstone Foundation is led by Julie Swartz, Trustee on every filing since 2020 — the only officer listed, and uncompensated.
Officers on the 2025 filing
Julie Swartz
Trustee
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Heartstone Foundation
How much does The Heartstone Foundation give each year?
The Heartstone Foundation gave $874K across 6 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1.1M across 4 grants.
What is The Heartstone Foundation's typical grant size?
The Heartstone Foundation's median grant in 2025 was $87,500, and its average grant was $145,652, across 6 grants on its 2025 IRS Form 990-PF.
Where does The Heartstone Foundation give grants?
The Heartstone Foundation gives mostly in New York: 57% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Massachusetts (35%) and Ohio (8%).
Does The Heartstone Foundation give general operating support?
Yes: 100% of The Heartstone Foundation's 2025 grants with a stated purpose (6 of 6) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are The Heartstone Foundation's largest grantees?
The Heartstone Foundation's largest 2025 grantees include American Friends of Magen David Adom ($500,000), Concord Academy ($100,000) and The Belmont School ($90,000), according to its 2025 IRS Form 990-PF. Together they received 79% of its itemized 2025 grant dollars.
How large is The Heartstone Foundation?
The Heartstone Foundation reported $13.7M in total assets on its 2025 IRS Form 990-PF. It paid out $881K in qualifying distributions that year, against a required minimum of $922K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What is The Heartstone Foundation's EIN?
The Heartstone Foundation's EIN (Employer Identification Number) is 20-6197750. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS May 14, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS October 26, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 2, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS November 14, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS July 9, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 13, 2026)
Live grants for the work The Heartstone Foundation funds
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