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THE WISTAR INSTITUTE OF ANATOMY AND BIOLOGY

EIN 23-6434390 PHILADELPHIA, PA

Revenue 2025
$77,322,000
Expenses 2025
$89,910,000

Program services were 79.2% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
H300
Classification
2800
Street
3601 SPRUCE ST

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • RICHARD M HOROWITZ

    TRUSTEE - BOARD CHAIR

    Total calculated
    $0
    Hours/week
    4

  • SUSAN B DILLON PHD

    TRUSTEE - VICE CHAIR

    Total calculated
    $0
    Hours/week
    1

  • STEVEN V ABRAMSON

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • ELIZABETH MCKEE ANDERSON

    TRUSTEE

    Total calculated
    $0
    Hours/week
    2

  • MAX BERGER

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • DOUGLAS S BRIGGS

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • IRA BRIND

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • RONALD CAPLAN

    TRUSTEE

    Total calculated
    $0
    Hours/week
    2

  • CATHERINE CREESE

    TRUSTEE (JOINED JAN 2025)

    Total calculated
    $0
    Hours/week
    1

  • ARTHUR DANTCHIK

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • DANIEL K FITZPATRICK

    TRUSTEE (LEFT MAY 2025)

    Total calculated
    $0
    Hours/week
    1

  • JOSEPH A GOLDBLUM

    TRUSTEE

    Total calculated
    $0
    Hours/week
    2

  • PERRY A LERNER

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • SUSAN S MCDONALD PHD

    TRUSTEE

    Total calculated
    $0
    Hours/week
    2

  • ABRAHAM L MORRIS

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • PATRICK OATES

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • ARTHUR M PAPPAS

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • HELEN P PUDLIN ESQ

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • SAMUEL V RHOADS

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • ROBERT H ROCK

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • GERALD B RORER

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • ALEISTER SAUNDERS

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • ADELE K SCHAEFFER

    TRUSTEE (LEFT SEPT 2025)

    Total calculated
    $0
    Hours/week
    1

  • MILTON S SCHNEIDER

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1

  • SQUIRE SERVANCE

    TRUSTEE (LEFT DEC 2025)

    Total calculated
    $0
    Hours/week
    1

The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $77,322,000
    Expenses
    $89,910,000
    Contributions
    $57,680,000
    Grants paid
    $0
  • 2024
    Revenue
    $93,130,000
    Expenses
    $93,862,000
    Contributions
    $74,373,000
    Grants paid
    $0
  • 2023
    Revenue
    $181,250,000
    Expenses
    $91,822,000
    Contributions
    $70,736,000
    Grants paid
    $0
  • 2022
    Revenue
    $90,721,000
    Expenses
    $85,062,000
    Contributions
    $72,907,000
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2025 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2024 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

Nonprofiteer parses the Form 990 only. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2025 return

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.