Diefenderfer Rosalind Tuw
Diefenderfer Rosalind Tuw is a private foundation, based in Pittsburgh, PA. IRS filing data is available from 2024 through 2026. As of 2026, the organization holds $2.7M in total assets. In 2026, it awarded 1 grant totaling $425K. Net investment income was $344K.
Diefenderfer Rosalind Tuw at a glance
In short: Diefenderfer Rosalind Tuw gave $425K across 1 grant in 2026 (avg $425K), mostly in New York. Source: 2026 IRS Form 990-PF.
- Annual giving (2026)
- $424,998
- +468.4% vs 2025
- Grants made (2026)
- 1
- +0.0% vs 2025
- Average grant
- $424,998
- +468.4% vs 2025
- Median grant
- $424,998
- Total assets
- $2,667,193
- +26.4% vs 2025
- Primary geography
- New York (100% of itemized 2026 grant dollars)
- Latest 990 filing
- Form 990-PF, 2026 View filing
Data from IRS Form 990-PF, 2026; updated October 2026.
Who Diefenderfer Rosalind Tuw funds
How this funder distributes its grants
Top Recipients
Top recipient in 2026
The largest 2026 recipient was Joan and Sanford I Weill Medical College ($425K).
Grant Size Distribution
3 grants across all recorded years
The most common grant size was in the $50–100K range: 2 grants of 3 (67%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2026 grant dollars on its one itemized grant.
States
Cities
How Diefenderfer Rosalind Tuw gives
- In 2026 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 2024 to 2026, annual grant giving ranged from $67K (2024) to $425K (2026). In 2026 it made 1 grant totaling $425K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Joan and Sanford I Weill Medical College New York, NY | General Operating | $424,998 |
Ready to take the next step with Diefenderfer Rosalind Tuw?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2026 | $2,667,193 | $346,136 | $497,908 | $424,998 | 1 | $425,998 | $343,653 | $170,486 |
| 2025 | $2,110,012 | $314,849 | $76,579 | $74,769 | 1 | $74,769 | $312,555 | $164,484 |
| 2024 | $1,996,026 | $165,141 | $68,439 | $66,999 | 1 | $66,999 | $163,262 | $147,433 |
Under IRS private-foundation payout rules, Diefenderfer Rosalind Tuw reported a distributable amount of $170K for 2026 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Diefenderfer Rosalind Tuw is led by Cornell Univ Office Of Trusts & Est, Trustee on every filing since 2024 — the only officer listed, and uncompensated.
Officers on the 2026 filing
Cornell Univ Office Of Trusts & Est
Trustee
On filings since 2024
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2024–2026. "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 Diefenderfer Rosalind Tuw
How much does Diefenderfer Rosalind Tuw give each year?
Diefenderfer Rosalind Tuw gave $425K across 1 grant in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $75K across 1 grant.
How large is Diefenderfer Rosalind Tuw?
Diefenderfer Rosalind Tuw reported $2.7M in total assets on its 2026 IRS Form 990-PF. It paid out $426K in qualifying distributions that year, against a required minimum of $170K (roughly 5% of its investment assets).
Where does Diefenderfer Rosalind Tuw operate?
Diefenderfer Rosalind Tuw has awarded grants in New York.
What is Diefenderfer Rosalind Tuw's EIN?
Diefenderfer Rosalind Tuw's EIN (Employer Identification Number) is 22-6519004. IRS Form 990 filing data is available on this page for 2024–2026.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(4)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2026 (received by the IRS August 5, 2026)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS January 30, 2026)
- Added Form 990-PF for fiscal year 2025 (received by the IRS January 30, 2026)
- IRS filings on file for fiscal year 2024
Other open foundation grants in Pennsylvania
Pennsylvania Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Diefenderfer Rosalind Tuw's focus areas in our free grants database
Similar Funders
Similar funders in Pennsylvania
The Ford Foundation
New York, NY
The Ford Foundation funds organizations and initiatives working to reduce inequality and advance social justice, including work on civic engagement, civil rights, climate justice, disability rights, and technology and society. In 2024, its grants ranged from $45 to $15 million, with a median of $100,000, supporting work in the U.S. and internationally. It says most grants are identified by the foundation and it does not accept unsolicited proposals by mail, email, or phone; limited opportunities may be offered separately.
Assets
$17.5B
Grants
4,007
Total Given
$844.7M
The New York Community Trust
New York, NY
The New York Community Trust funds nonprofit programs in areas such as arts, education, health, the environment, workforce development, and youth development, including projects that improve services, build organizational capacity, or advance policy and systems change. Its competitive grants mainly serve New York City, Long Island, and Westchester, with some national and international environmental funding; the 2024 median grant was $20,000. The profile does not state whether it accepts unsolicited requests.
Assets
$3.5B
Grants
2,748
Total Given
$193.8M
The Simons Foundation Inc
New York, NY
The Simons Foundation funds research and public engagement in mathematics and the physical, life, autism, and neuroscience sciences. In 2024, it made 1,727 grants, with a median award of $72,000 and amounts ranging from $1,480 to $20 million, supporting organizations in the U.S. and internationally. It states that it funds only preselected charitable organizations and does not accept unsolicited requests.
Assets
$4.5B
Grants
1,727
Total Given
$272.0M
The Pittsburgh Foundation
Pittsburgh, PA
The Pittsburgh Foundation funds nonprofits working in basic needs, equity and social justice, environmental action, arts and culture, and economic mobility, with most opportunities for organizations in Allegheny County or primarily serving its residents. Its 2024 grants had a median amount of about $18,600, though awards varied widely. The profile does not state whether it accepts unsolicited requests.
Assets
$1.5B
Grants
1,132
Total Given
$64.0M
The William Penn Foundation
Philadelphia, PA
The William Penn Foundation funds arts and culture, children and families, civic participation, the environment and public spaces, and workforce training, primarily in the Philadelphia region. Its 2024 median grant was $50,000, though awards varied widely. It accepts unsolicited requests through limited open applications and invites letters of inquiry from public charities.
Assets
$3.4B
Grants
1,027
Total Given
$148.8M
Dick's Sporting Goods Foundation
Coraopolis, PA
DICK’S Sporting Goods Foundation primarily funds youth sports participation in under-resourced communities, including equipment, registration costs and facilities, and also supports outdoor access and education. Its 2025 grants ranged from $626 to $2.5 million, with a median of $5,000, and Sports Matter funding has reached all 50 states. Sports Matter opportunities are by invitation only; the foundation says 501(c)(3) grant requests should be submitted in writing.
Assets
$34.5M
Grants
964
Total Given
$18.0M
More similar funders
More Funders in Pennsylvania
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from Diefenderfer Rosalind Tuw'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.
Diefenderfer Rosalind Tuw down — hundreds of funders to go?