The Wistar Institute of Anatomy and Biology
3601 Spruce St, Philadelphia, PA · IRS data through FY2025
Revenue, expenses and net assets
Revenue Expenses Net assets
| Tax year | Revenue | Expenses | Net assets |
|---|---|---|---|
| FY2025 | $77,322,000 | $89,910,000 | $349,753,000 |
| FY2024 | $93,130,000 | $93,862,000 | $341,597,000 |
| FY2023 | $181,250,000 | $91,822,000 | $322,110,000 |
| FY2022 | $90,721,000 | $85,062,000 | $298,116,000 |
| FY2021 | $115,831,000 | $69,091,000 | $334,502,000 |
| FY2020 | $67,263,000 | $68,907,000 | $266,552,000 |
| FY2019 | $64,459,000 | $68,702,000 | $250,164,000 |
| FY2018 | $81,845,000 | $69,520,000 | $232,365,000 |
| FY2017 | $86,105,000 | $72,233,000 | $237,111,000 |
| FY2016 | $66,669,000 | $60,521,000 | $207,467,000 |
| FY2015 | $92,237,000 | $59,156,000 | $193,707,000 |
| FY2014 | $68,958,000 | $57,908,000 | $160,725,000 |
| FY2013 | $65,963,000 | $57,593,000 | $160,015,000 |
| FY2012 | $67,424,000 | $62,072,000 | $142,814,000 |
Form 990 filings
The returns filed by The Wistar Institute of Anatomy and Biology (EIN 23-6434390), including Form 990 PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.
Where the revenue came from
| Source | Amount | % of revenue |
|---|---|---|
| Contributions & grants | $57,680,000 | 75% |
| Program service revenue | $260,000 | <1% |
| Other revenue | $19,382,000 | 25% |
Where the money was spent
| Category | Amount | % of expenses |
|---|---|---|
| Program services | $71,192,000 | 79% |
| Management & general | $17,159,000 | 19% |
| Fundraising | $1,559,000 | 2% |
What the numbers show
- Contributions & grants made up 75% of total revenue in FY2025.
- Program services accounted for 79% of functional expenses, management & general 19%, and fundraising 2%.
- 79% of functional expenses went to program services in FY2025. That is higher than 34.4% of 157 Medical Research organizations nationwide (too few in PA for a state comparison).
- Net assets covered about 46.7 months of expenses at the end of the reporting year. That puts it in the 76th percentile among 120 Medical Research organizations in PA.
- Total revenue was higher than 98.4% of 122 Medical Research organizations in PA.
- Total revenue rose from $67,424,000 in FY2012 to $77,322,000 in FY2025. Revenue increased in 6 and decreased in 7 of 13 year-over-year comparisons.
- Expenses exceeded revenue in 4 of 14 reported years (FY2019, FY2020, FY2024, FY2025).
- The highest revenue on record here is $181,250,000 in FY2023.
- Net assets grew from $142,814,000 to $349,753,000 between FY2012 and FY2025.
- Listed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (public charity).
Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.
About this organization
BIOMEDICAL RESEARCH WITH SPECIAL EXPERTISE IN CANCER RESEARCH AND VACCINE DEVELOPMENT (IMMUNOLOGY).
IRS status
| Ruling year | 1946 |
| Subsection | 501(c)(3) |
| Classification | Public charity |
| Program area (NTEE) | H300 — Medical Research |
| Donations | Listed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (public charity). |
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Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.
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