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SOCIETY OF TOXICOLOGIC PATHOLOGY

EIN 22-7134561 RESTON, VA

Largest nonprofits in Virginia

Revenue 2025
$1,178,740
Expenses 2025
$1,206,545

Program services were 78.4% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
G97Z
Classification
1000
Street
11190 SUNRISE VALLEY DR STE 300

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).

Other organizations at this address

8 other organizations in the IRS Business Master File list the same street address. matched by us

This address is a suite or unit (STE 300). Organizations that share one are often clients of the same office-services firm, accountant or registered agent rather than related to each other.

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2025

Mission

THE MISSION AND VISION OF THE SOCIETY OF TOXICOLOGIC PATHOLOGY (STP) IS TO BE RECOGNIZED AS AN INTERNATIONAL LEADER FOR IMPROVEMENT OF HUMAN, ANIMAL, AND ENVIRONMENTAL HEALTH USING AN INTERDISCIPLINARY SCIENTIFIC APPROACH BASED IN PATHOLOGY AND TOXICOLOGY BY SCIENTIFIC, LEGISLATIVE, AND REGULATORY STAKEHOLDERS. FURTHER TO THIS, STP WILL BE A GLOBAL LEADER IN PROVIDING EDUCATIONAL AND CAREER DEVELOPMENT RESOURCES IN TOXICOLOGIC PATHOLOGY TO ITS MEMBERSHIP, STUDENTS, AND ORGANIZATIONS WITH COMMON INTERESTS; REMAIN AWARE, KNOWLEDGEABLE, AND RESPONSIVE TO TECHNOLOGICAL ADVANCEMENTS THAT HAVE THE POTENTIAL TO EVOLVE AND TRANSFORM THE PRACTICE OF TOXICOLOGIC PATHOLOGY; AND ENSURE SUSTAINABILITY OF THE SOCIETY THROUGH SOUND FINANCIAL MANAGEMENT, ENHANCED RECRUITMENT OF NEW MEMBERS, AND DEVELOPMENT OF THE CAREERS OF ITS EXISTING MEMBERS, WHILE FUNCTIONING IN A MANNER THAT PROMOTES A HEALTHY AND SUSTAINABLE ENVIRONMENT.

  • THE SOCIETY HOLDS AN ANNUAL MEETING THAT IS ATTENDED BY APPROXIMATELY 400 MEMBERS AND OTHER INTERESTED SCIENTISTS. THE MEETING INCLUDES THREE FULL DAYS OF EDUCATIONAL SCIENTIFIC SESSIONS RELATING TO TOXICOLOGIC PATHOLOGY, ONE DAY OF CONTINUING EDUCATION AND CAREER DEVELOPMENT COURSES, AS WELL AS OTHER RELATED SESSIONS AND EVENTS, INCLUDING THE ANNUAL AWARDS AND RECOGNITION CEREMONY AND BUSINESS MEETING. THE MEETING IS HELD ON A ROTATING BASIS IN VARIOUS LOCATIONS IN THE UNITED STATES AND CANADA.

    Expenses $462,651 · Grants $14,400 · Revenue $420,191

  • THIRTEEN STANDING COMMITTEES AND NUMEROUS SUBCOMMITTEES, IN ADDITION TO THE EXECUTIVE COMMITTEE, CONDUCT THE SOCIETY'S BUSINESS AND ORGANIZE ITS PROGRAMS. THE SOCIETY SUPPORTS SPECIAL INTEREST GROUPS (SIGS) COMPOSED OF SOCIETY MEMBERS THAT SPECIFICALLY ENHANCE NETWORKING AND SCIENTIFIC EXCHANGES RELEVANT TO THE MISSION AND STRATEGIC PLAN OF THE SOCIETY. THERE ARE CURRENTLY 16 SIGS: CARDIOVASCULAR, CLINICAL PATHOLOGY, COMPLEX IN VITRO MODELS AND PATHOLOGY, DIGITAL PATHOLOGY, ENVIRONMENTAL TOXICOLOGIC PATHOLOGY, IMMUNE SYSTEM, JUVENILE PATHOLOGY, MEDICAL DEVICES, MOLECULAR PATHOLOGY, MUSCULOSKELETAL PATHOLOGY, NEUROPATHOLOGY, NON-HUMAN PRIMATE PATHOLOGY, PIG TOXICOLOGIC PATHOLOGY, REPRODUCTIVE PATHOLOGY, RESPIRATORY AND INHALATION PATHOLOGY, AND SIG SENSE.

    Expenses $274,930 · Revenue $186,352

  • THE SOCIETY'S JOURNAL, TOXICOLOGIC PATHOLOGY, PUBLISHES 8 ISSUES A YEAR ON-LINE AND IN PRINT FOR MEMBERS AND OTHER SUBSCRIBERS. SUPPLEMENTS TO THE JOURNAL ARE PUBLISHED PERIODICALLY.

    Expenses $163,664 · Revenue $192,832

  • OTHER PROGRAM SERVICES (DESCRIPTION IS OPTIONAL): THE SOCIETY SUPPORTS VARIOUS LONG-TERM INITIATIVES SUCH AS HOLDING A VIRTUAL MODULAR COURSE EACH YEAR THAT APPROXIMATELY 100-215 MEMBERS AND INTERESTED SCIENTISTS AND TRAINEES ATTEND. THE MODULAR COURSE IS HELD OVER A THREE-WEEK PERIOD AND INCLUDES THE EQUIVALENT OF THREE FULL DAYS OF SPECIFIC EDUCATIONAL SCIENTIFIC SESSIONS RELATING TO TOXICOLOGIC PATHOLOGY. THE SOCIETY HOLDS 2-3 VIRTUAL CONTINUING EDUCATION SESSIONS AND ONE IN-PERSON CONTINUING EDUCATION SESSIONS AT THE ANNUAL MEETING, EACH UP TO FOUR HOURS IN LENGTH THAT APPROXIMATELY 60-100 MEMBERS AND OTHER INTERESTED SCIENTISTS AND TRAINEES ATTEND. THE SOCIETY ALSO HOLDS IN-PERSON REGIONAL MEETINGS THAT ARE ATTENDED BY APPROXIMATELY 60-100 MEMBERS AND OTHER INTERESTED SCIENTISTS AND TRAINEES ON A SPECIFIC TOPIC IN TOXICOLOGIC PATHOLOGY IN ONE DAY. THE SOCIETY HOLDS A PATHOLOGY CONFERENCE FOR NON-PATHOLOGISTS EVERY OTHER YEAR OVER A THREE-DAY PERIOD ATTENDED BY APPROXIMATELY 50-60 MEMBERS AND OTHER INTERESTED SCIENTISTS AND TRAINEES.

    Expenses $44,940 · Grants $12,000

As filed on the 2025 return. The filer continues this part on Schedule O, which is not shown here.

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.

  • Jon Werner

    PRESIDENT

    Total calculated
    $0
    Hours/week
    4
  • Richard A Peterson II

    PAST PRESIDENT

    Total calculated
    $0
    Hours/week
    2
  • Elizabeth Galbreath

    PRESIDENT ELECT

    Total calculated
    $0
    Hours/week
    2
  • Erin Quist

    SECRETARY-TREASURER

    Total calculated
    $0
    Hours/week
    2
  • Keith Nelson

    SECRETARY-TREASURER-ELECT

    Total calculated
    $0
    Hours/week
    2
  • Marie-Odile Benoit-Biancamano

    COUNCILOR

    Total calculated
    $0
    Hours/week
    1
  • Elizabeth Clark

    COUNCILOR

    Total calculated
    $0
    Hours/week
    1
  • Wendy Helpern

    COUNCILOR

    Total calculated
    $0
    Hours/week
    1
  • Kathleen Heinz-Taheny

    COUNCILOR

    Total calculated
    $0
    Hours/week
    1
  • Ingrid D Pardo

    COUNCILOR

    Total calculated
    $0
    Hours/week
    1
  • Matthew Price

    EXECUTIVE DIRECTOR

    Total calculated
    $0
    Hours/week
    40

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, and on a Form 990-PF Part VIII's — 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
    $1,178,740
    Expenses
    $1,206,545
    Contributions
    $174,234
    Grants paid
    $26,400
  • 2023
    Revenue
    $1,110,054
    Expenses
    $1,071,237
    Contributions
    $241,027
    Grants paid
    $41,200
  • 2022
    Revenue
    $977,120
    Expenses
    $1,203,977
    Contributions
    $188,985
    Grants paid
    $29,835

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
  • 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
  • 2021 · 990

    Revenue
    $928,282
    Expenses
    $935,484
    Assets (EOY)
    $2,437,788
  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2020 · 990

    Revenue
    $907,624
    Expenses
    $792,870
    Assets (EOY)
    $2,402,111
  • 2020 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2019 · 990

    Revenue
    $994,695
    Expenses
    $1,197,111
    Assets (EOY)
    $2,181,028
  • 2018 · 990

    Revenue
    $1,125,417
    Expenses
    $1,226,878
    Assets (EOY)
    $2,237,160
  • 2017 · 990

    Revenue
    $965,129
    Expenses
    $1,059,429
    Assets (EOY)
    $2,538,924

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. 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. Showing the 10 most recent; the API carries the rest.

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

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 13 October 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.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.