The Mary Duke Biddle Foundation
DURHAM, NC EIN: 13-6068883
Financial Overview
From 2024 IRS Form 990-PF
Total Assets
$43.0M
+5.2% YoY
Annual Giving
$1.5M
-5.7% YoY
Grant Count
51
-8.9% YoY
Avg Grant Size
$29K
+3.5% YoY
Go deeper than public filings
PRO- Giving trend analysis — growing or declining?
- Organizations like yours that won grants here
- Strategic fit assessment for your organization
- Application timing recommendations
Financial History
Multi-year comparison from IRS filings
Revenue
Expenses
Qualifying Distributions
Net Investment Income
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $43,028,444 | $40,889,071 | $38,339,116 |
| Revenue | $3,840,733 | $1,918,788 | $3,094,907 |
| Expenses | $3,211,057 | $2,960,771 | $2,954,187 |
| Qualifying Distributions | $1,999,979 | $2,167,479 | $2,168,396 |
| Net Investment Income | $2,580,669 | $1,163,337 | $2,395,605 |
| Distributable Amount | $1,964,883 | $1,934,687 | $2,025,713 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
335 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Who else does The Mary Duke Biddle Foundation fund?
Explore the funder–grantee relationships behind this foundation, powered by GrantGraph™ — our database of 11 million+ funding connections.
- Similar orgs that won grants here
- GrantGraph™ relationship mapping
- 11M+ connections in GrantGraph™
Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| MARGARET MIMI O'BRIEN | EXECUTIVE DIRECTOR | 40 | $204,592 |
| DR YOMI ADIGUN | TREASURER | 5 | $6,000 |
| GEORGE BIDDLE | TRUSTEE | 5 | $6,000 |
| C RUSSELL BRYAN | VICE CHAIR | 5 | $6,000 |
| E'VONNE COLEMAN-COOK | TRUSTEE | 5 | — |
| LOIS DELOATCH | MDBF ALLOCATIONS COMMITTEE | 5 | $3,500 |
| N ALLISON HALTOM | MDBF ALLOCATIONS COMMITTEE | 5 | $3,500 |
| BEN JONES | CHAIR | 5 | $1,500 |
| DR JACKIE LOONEY | TRUSTEE | 5 | $6,000 |
| JOE LUCAS | TRUSTEE | 5 | $6,000 |
Geographic Focus
Where this funder has awarded grants
Grant Distribution by State
North Carolina $7.5M (99%)
New York $68K (1%)
Tennessee $10K (0%)
Maryland $3K (0%)
Cities
ApexAshevilleBakersvilleBynumCarrborCarrboroCaryChapel HillClaytonDurhamFuquayvarinaGrahamHillsboroughIrvingtonNashvilleNew YorkPittsboroRaleighResearch Triangle ParkRougemont
Data last updated March 2026. Sourced from IRS Form 990-PF filings.
What could you do with The Mary Duke Biddle Foundation on Grantable?
- Assess strategic fit with your organization
- Get AI-generated opportunity briefs
- Monitor for new funding opportunities
- Draft a tailored letter of inquiry