Skip to content
Nonprofiteer
← All organizations

RIVKIN CENTER FOR OVARIAN CANCER

EIN 91-2054035 SEATTLE, WA

Largest nonprofits in Washington

Revenue 2024
$1,700,018
Expenses 2024
$1,678,303

Program services were 38.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
H30
Classification
2000
Street
1200 12TH AVE S STE 1110

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).

Mission and programs · 2024

Mission

WE ENVISION A WORLD WHERE WOMEN LIVE LONGER AND HEALTHIER LIVES BECAUSE OVARIAN CANCER CAN BE PREVENTED, CAUGHT EARLY, OR CURED.

Activities or mission (Part I)

END OVARIAN CANCER WITHIN OUR LIFETIMES.

  • THE RIVKIN CENTER'S PROGRAMMATIC WORK UNDERWENT DYNAMIC CHANGE IN 2024, AND EVEN BIGGER CHANGES ARE COMING FOR 2025.FOR THREE DECADES, THE RIVKIN CENTER'S SCIENTIFIC GRANT PROGRAM HAS USED A SEED-FUNDING APPROACH THAT LAUNCHES PROMISING NEW RESEARCH AND RESEARCHERS THROUGHOUT THE WORLD. AFTER PAUSING NEW GRANTS IN 2023, THE RIVKIN CENTER FUNDED TWO $75K PILOT STUDY AWARDS IN 2024. THE RIVKIN CENTER AND WASHINGTON STATE'S ANDY HILL CANCER RESEARCH ENDOWMENT (CARE) FUND ALSO CREATED A PUBLIC-PRIVATE PARTNERSHIP TO JOINTLY SUPPORT $1M IN OVARIAN CANCER RESEARCH IN WASHINGTON STATE. IN 2024, THE FIRST TWO GRANTS TOTALING $400K WERE AWARDED; $600K IN GRANTS WILL BE AWARDED IN 2025. BY THE END OF 2024, THE RIVKIN CENTER HAD RAISED ITS $500K IN PRIVATE MATCHING FUNDS. OVARIAN CANCER IS UNDERFUNDED BY FEDERAL FUNDING AGENCIES WHEN COMPARED TO OTHER CANCERS, DESPITE IT STILL HAVING NO UNIVERSAL SCREENING TOOL AND BEING THE DEADLIEST GYNECOLOGICAL CANCER. FOR EVERY DOLLAR INVESTED BY THE RIVKIN CENTER, OUR AWARDEES, ON AVERAGE, LEVERAGE ANOTHER $17.30 FROM OTHER FUNDING SOURCES TO FURTHER THEIR OVARIAN CANCER RESEARCH.

    Expenses $290,470 · Grants $290,470

  • IN SEPTEMBER 2024, THE RIVKIN CENTER HOSTED THE 15TH BIENNIAL OVARIAN CANCER RESEARCH SYMPOSIUM, BRINGING TOGETHER NEARLY 250 RESEARCHERS AND CLINICIANS FROM 11 COUNTRIES WHO CAME TO LEARN ABOUT THE LATEST IN OVARIAN CANCER RESEARCH. THE EVENT HOSTED A SESSION WITH PATIENT ADVOCATES; SCIENTIFIC SESSIONS COVERED THE BIOLOGY OF OVARIAN CANCER, PREVENTION, EARLY DETECTION, & INTERCEPTION, EMERGING THERAPEUTICS, NOVEL IMMUNOTHERAPIES, AND HEALTHCARE DISPARITIES. ON APRIL 30, 2024, THE RIVKIN CENTER ENDED ITS EDUCATION PROGRAM FOCUSED ON OVARIAN AND BREAST CANCER EDUCATION AND RETURNED TO A SOLE FOCUS ON OVARIAN CANCER - BOTH RESEARCH GRANTS AND BETTER SUPPORT FOR THOSE DIAGNOSED WITH OVARIAN CANCER IN THE PACIFIC NORTHWEST. FROM JANUARY TO MARCH 2024 THE EDUCATION TEAM SUPPORTED 15 COLLEGE-CAMPUS WORKSHOPS AND EIGHT PUGET SOUND COMMUNITY WORKSHOPS. COMMUNITY WORKSHOPS WERE HELD IN COORDINATION WITH MERCY HOUSING, MARY'S PLACE, FAMILYWORKS, WASHINGTON RHINESTONE CLUB, SEATTLE JEWISH FESTIVAL AND HERZL NER TAMID AND REACHED PRIMARILY PARTICIPANTS WHO BELONG TO HISTORICALLY UNDER-RESOURCED/UNDERREPRESENTED GROUPS.

    Expenses $360,801 · Revenue $157,825

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Molly O'Connor

    CEO

    Total calculated
    $185,682
    From this org
    $161,600
    From related orgs
    $0
    Other
    $24,082
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $161,600
    Bonus
    $0
    Other
    $0
    Deferred
    $0
    Nontaxable benefits
    $24,082
    Filer's total
    $185,682

  • Pauline Middlehurst

    DEVELOPMENT DIRECTOR (UNTIL 4/2024)

    Total calculated
    $35,061
    From this org
    $29,586
    From related orgs
    $0
    Other
    $5,475
    Hours/week
    40

  • Melissa Rivkin

    PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • Amy Sing

    VICE PRESIDENT

    Total calculated
    $0
    Hours/week
    1

  • Alex Smith

    SECRETARY

    Total calculated
    $0
    Hours/week
    1

  • Thomas Brown

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Eva Corets

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Audrey Covner

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Kristin Hawes

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Bob Mahler

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Fernanda Musa

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Katerie Schei

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Katie Van Kessel

    MEMBER

    Total calculated
    $0
    Hours/week
    1

  • Andrea Rewitz Mizer

    MEMBER (UNTIL 6/2024)

    Total calculated
    $0
    Hours/week
    1

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. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $1,700,018
    Expenses
    $1,678,303
    Contributions
    $1,523,596
    Grants paid
    $290,470
  • 2023
    Revenue
    $1,284,232
    Expenses
    $1,404,009
    Contributions
    $1,421,107
    Grants paid
    $120,000
  • 2022
    Revenue
    $1,484,984
    Expenses
    $1,297,053
    Contributions
    $1,717,789
    Grants paid
    $459,923

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

  • 2021 · 990

    Revenue
    $1,708,996
    Expenses
    $1,507,086
    Assets (EOY)
    $2,054,285

  • 2020 · 990

    Revenue
    $1,531,882
    Expenses
    $1,808,055
    Assets (EOY)
    $1,689,610

  • 2019 · 990

    Revenue
    $2,197,898
    Expenses
    $2,944,228
    Assets (EOY)
    $1,851,779

  • 2018 · 990

    Revenue
    $3,083,390
    Expenses
    $2,432,795
    Assets (EOY)
    $2,630,978

  • 2017 · 990

    Revenue
    $2,475,674
    Expenses
    $2,283,117
    Assets (EOY)
    $2,344,623

  • 2017 · 990

    Revenue
    $2,475,674
    Expenses
    $2,283,117
    Assets (EOY)
    $2,344,623

  • 2016 · 990

    Revenue
    $2,521,124
    Expenses
    $2,225,341
    Assets (EOY)
    $2,398,187

  • 2014 · 990

    Revenue
    $988,687
    Expenses
    $2,150,080
    Assets (EOY)
    $1,213,143

  • 2013 · 990

    Revenue
    $2,284,599
    Expenses
    $1,945,928
    Assets (EOY)
    $3,057,541

  • 2012 · 990

    Revenue
    not reported
    Expenses
    $2,011,099
    Assets (EOY)
    $2,144,128

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

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

Where these grants went next →

Grants received

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

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 2024, the newest we have parsed for this organization.