Rockstone

Private foundation · Grantmaker Monsey, NY EIN: 47-7022620

Rockstone is a private foundation, based in Monsey, NY. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $1K in total assets.

Rockstone at a glance

Total assets
$1,120
-16.9% vs 2024
Expenses (2025)
$227
+19.5% vs 2024
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated September 2026.

Who Rockstone funds

How this funder distributes its grants

Grant Size Distribution

68 grants across all recorded years

68<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 68 grants of 68 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

3states

Cities

BrooklynMonseySpring ValleyMonroeAirmontLakewoodBrooklyEdisonFlushingHillburnLos AngelesMonsey NYNew CityNew YorkSuffern

How Rockstone gives

  • Giving fell 97% from 2020 to 2023. Method
  • In 2023 it paid out well above its IRS minimum distribution (the 5% rule). 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

$0$50K$100K$150K$200K91 grants2020 50 grants2021 16 grants2022 2 grants2023 0 grants2024 0 grants2025

From 2020 to 2023, annual grant giving ranged from $6K (2023) to $184K (2020). In 2023 it made 2 grants totaling $6K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
The OJC Fund Brooklyn, NYCharity$5,500
Congregation Zichron Nussen Leib Monsey, NYCharity$721
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$1,120—$227————$7
2024$1,347—$190————$9
2023$1,537$12,700$14,920$6,2212$6,221—$69
2022$3,757$61,767$59,794$59,33516$59,335—$106
2021$1,784$92,984$132,485$132,07550—$5,133$778
2020$41,285$80,000$186,558$184,00491——$2,034

Under IRS private-foundation payout rules, Rockstone reported a distributable amount of $7 for 2025 — the minimum it must pay out in qualifying distributions.

Leadership & Key People

Officers and directors from IRS filings

Rockstone's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Miriam Waldman

    Trustee

    On filings since 2020

    No compensation reported

  • Motty Waldman

    Trustee

    On filings since 2020

    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 Rockstone

How large is Rockstone?

Rockstone reported $1K in total assets on its 2025 IRS Form 990-PF.

Where does Rockstone operate?

Rockstone has awarded grants in California, New Jersey, New York.

How much is Rockstone required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2025, Rockstone reported a distributable amount of $7 on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Rockstone's EIN?

Rockstone's EIN (Employer Identification Number) is 47-7022620. 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

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS June 23, 2022)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS September 22, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS November 14, 2022)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS March 20, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS January 27, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS March 26, 2026)
  7. IRS filings on file for fiscal years 2020–2025

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Rockstone's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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