The William B Wiener Jr Foundation
TYPE I SUPPORTING ORGANIZATION TO ROCKEFELLER FAMILY FUND, INC. A PUBLIC CHARITY WHOSE MISSION IS TO INITIATE, CULTIVATE, AND FUND STRATEGIC EFFORTS TO PROMOTE A SUSTAINABLE, JUST, FREE, AND PARTICIPATORY SOCIETY.
Financial Overview
From 2024 IRS Form 990-PF
Total Assets
$4.6M
-22.7% YoY
Annual Giving
$1.1M
-97.9% YoY
Grant Count
1
+0.0% YoY
Avg Grant Size
$1.1M
-97.9% YoY
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Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $4,605,672 | $5,961,828 | $43,300,325 |
| Revenue | $657,921 | $30,454,265 | $2,963,352 |
| Expenses | $1,425,085 | $53,687,881 | $2,084,275 |
| Qualifying Distributions | — | — | — |
| Net Investment Income | $657,921 | $30,454,265 | $2,963,352 |
| Distributable Amount | — | — | — |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 1 recipients in 2024
Grant Size Distribution
5 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Who else does The William B Wiener Jr Foundation fund?
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Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| DONALD B WIENER | PRESIDENT AND ASST. TREASURER | 2 | — |
| MIRANDA KAISER | VICE PRESIDENT | 2 | — |
| DAVID ROCKEFELLER JR | VICE PRESIDENT | 2 | — |
| JEFFREY W WEISS | SECRETARY | 2 | — |
| JAY R HALFON | TREASURER AND ASST. SECRETARY | 2 | — |
| ELIZABETH MAYO | EXECUTIVE DIRECTOR | 10 | — |
Geographic Focus
Where this funder has awarded grants
Grant Distribution by State
States
Cities
Data last updated March 2026. Sourced from IRS Form 990-PF filings.
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