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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ON APRIL 1, 2025, THE RIVKIN CENTER WILL COMBINE WITH THE OVARIAN CANCER RESEARCH ALLIANCE (OCRA), ENSURING THAT OUR MISSION TO END OVARIAN CANCER IN OUR LIFETIMES WILL CONTINUE TO GROW AND BE REALIZED. THEY ALSO HAVE HAD A THREE-DECADE COMMITMENT TO FUNDING OVARIAN CANCER RESEARCH. OCRA'S ABILITY TO SECURE FUNDING THROUGH GOVERNMENT GRANTS AND PARTNERSHIPS WITH BIOTECH COMPANIES MAKES THEM A POWERFUL PARTNER IN AMPLIFYING OUR SHARED MISSION. PARTNERSHIP WITH OCRA WILL ENSURE SUSTAINABLE, LONG-TERM INVESTMENTS IN THE OVARIAN CANCER RESEARCH THAT HAS ALWAYS BEEN THE PURPOSE OF OUR WORK. THIS PARTNERSHIP REPRESENTS A UNITING OF STRENGTHS: OCRA HAS RECOGNIZED THE RIVKIN CENTER'S UNIQUE EXPERTISE IN IDENTIFYING AND FUNDING EARLY-STAGE, INNOVATIVE RESEARCH THAT OFTEN LEADS TO MUCH LARGER FEDERAL GRANTS. IN TURN, WE ARE HONORED TO PARTNER WITH AN ORGANIZATION THAT HAS ALREADY INVESTED $128M TOWARD OUR SHARED GOAL OF ENDING OVARIAN CANCER. OCRA ALSO HAS TRUSTED INFORMATION AND RESOURCES TO SUPPORT THE OVARIAN CANCER COMMUNITY - PATIENTS, SURVIVORS, FAMILIES, ADVOCATES, AND MEDICAL PROFESSIONALS. AS PART OF THIS TRANSITION: - THE RIVKIN CENTER WILL RETIRE AS A SEPARATE ENTITY ON APRIL 1, 2025 2025 SCIENTIFIC GRANTS WILL BE ANNOUNCED IN MARCH 2025 AS PLANNED - OCRA WILL CONTINUE TO AWARD THE RIVKIN PILOT GRANTS WITH AROUND $400K A YEAR DEDICATED TO SUPPORTING NEW IDEAS IN OVARIAN CANCER RESEARCH THROUGHOUT THE WORLD - THE SUMMERUN WILL CONTINUE! THE 2025 SUMMERUN WILL BE HELD JULY 13 AT SEWARD PARK - THE BIENNIAL OVARIAN CANCER RESEARCH SYMPOSIUM WILL CONTINUE AND BE RENAMED FOR DR. RIVKIN - OUR SCIENTIFIC PROGRAMS DIRECTOR, DR. JACKIE LANG, WILL JOIN OCRA, ENSURING CONTINUITY AND DRIVING THE PROGRAMS CENTRAL TO OUR SHARED MISSION AND MELISSA RIVKIN WILL JOIN THE OCRA BOARD OF DIRECTORS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD REVIEWS THE FORM 990 PRIOR TO THE SUBMISSION TO THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL BOARD MEMBERS REVIEW AND SIGN THE CONFLICT OF INTEREST DOCUMENT ANNUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>