The Rothenberg Ludden Trust
The Rothenberg Ludden Trust is a private foundation, based in South River, NJ. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $907K in total assets. In 2025, it awarded 5 grants totaling $100K. Net investment income was $46K.
The Rothenberg Ludden Trust at a glance
In short: The Rothenberg Ludden Trust gave $100K across 5 grants in 2025 (avg $20K), mostly in New York. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $100,000
- -62.8% vs 2024
- Grants made (2025)
- 5
- -66.7% vs 2024
- Average grant
- $20,000
- +11.5% vs 2024
- Median grant
- $10,000
- Total assets
- $906,591
- +22.9% vs 2024
- Primary geography
- New York (100% 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 Rothenberg Ludden Trust funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2025
The largest 2025 recipient was Wildlife Conservation Society ($50K). Together the top 5 received $100K.
Grant Size Distribution
41 grants across all recorded years
The most common grant size was under $50K: 33 grants of 41 (80%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
Cities
How The Rothenberg Ludden Trust gives
- Giving held roughly steady from 2022 to 2025 (−10%). Method
- In 2025 it paid out 250% of 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
From 2020 to 2025, annual grant giving ranged from $99K (2020) to $269K (2024). In 2025 it made 5 grants totaling $100K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Wildlife Conservation Society Bronx, NY | General Purposes | $50,000 |
| The Greenburgh Nature Center Scarsdale, NY | General Purposes | $25,000 |
| Untermyer Garden Conservancy Yonkers, NY | General Purposes | $10,000 |
| Bronx Is Blooming Bronx, NY | General Purposes | $10,000 |
| Stern Center for Sustainable Busines New York, NY | General Purposes | $5,000 |
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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 | $906,591 | $300,923 | $109,348 | $100,000 | 5 | $104,674 | $46,249 | $41,881 |
| 2024 | $737,382 | $72,227 | $278,533 | $269,000 | 15 | $273,766 | $67,460 | $44,979 |
| 2023 | $942,189 | $25,717 | $187,027 | $181,000 | 6 | $184,014 | $22,704 | $51,593 |
| 2022 | $1,098,091 | $21,408 | $123,942 | $111,500 | 4 | $116,545 | $23,401 | $63,668 |
| 2021 | $1,194,419 | $124,397 | $175,281 | $163,000 | 11 | $168,626 | $118,770 | $70,984 |
| 2020 | $1,245,553 | $47,527 | $110,590 | $99,000 | 8 | — | $41,731 | $67,034 |
Under IRS private-foundation payout rules, The Rothenberg Ludden Trust reported a distributable amount of $42K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Rothenberg Ludden Trust's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Catherine A. Ludden
Trustee
On filings since 2020
No compensation reported
Eric B. Rothenberg
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 The Rothenberg Ludden Trust
How much does The Rothenberg Ludden Trust give each year?
The Rothenberg Ludden Trust gave $100K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $269K across 15 grants.
What is The Rothenberg Ludden Trust's typical grant size?
The Rothenberg Ludden Trust's median grant in 2025 was $10,000, and its average grant was $20,000, across 5 grants on its 2025 IRS Form 990-PF.
Where does The Rothenberg Ludden Trust give grants?
The Rothenberg Ludden Trust gives mostly in New York: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Bronx, NY (2 grants).
Does The Rothenberg Ludden Trust give general operating support?
Yes: 100% of The Rothenberg Ludden Trust's 2025 grants with a stated purpose (5 of 5) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are The Rothenberg Ludden Trust's largest grantees?
The Rothenberg Ludden Trust's largest 2025 grantees include Wildlife Conservation Society ($50,000), The Greenburgh Nature Center ($25,000) and Untermyer Garden Conservancy ($10,000), according to its 2025 IRS Form 990-PF. Together they received 85% of its itemized 2025 grant dollars.
How large is The Rothenberg Ludden Trust?
The Rothenberg Ludden Trust reported $907K in total assets on its 2025 IRS Form 990-PF. It paid out $105K in qualifying distributions that year, against a required minimum of $42K (roughly 5% of its investment assets).
What is The Rothenberg Ludden Trust's EIN?
The Rothenberg Ludden Trust's EIN (Employer Identification Number) is 47-6799089. 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
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 11, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in The Rothenberg Ludden Trust's focus areas in our free grants database
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