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        <PersonNm>Jennifer Pintacuda</PersonNm>
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        <PersonNm>Ben Potter</PersonNm>
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        <PersonNm>Michael Quigley</PersonNm>
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        <PersonNm>Jeff Schroeder</PersonNm>
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        <PersonNm>Shariq Shafi</PersonNm>
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        <PersonNm>Edmund Shallcross III</PersonNm>
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        <PersonNm>Sarah Shine</PersonNm>
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        <PersonNm>Michael Steinman</PersonNm>
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        <PersonNm>Craig Tillman</PersonNm>
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        <PersonNm>Anne Cope</PersonNm>
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        <PersonNm>Chuck Miccollis</PersonNm>
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        <PersonNm>Christopher Flynn</PersonNm>
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        <PersonNm>Connie Bryant Breedlove</PersonNm>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>A draft copy is first reviewed by the Chief Financial Officer, General Counsel, and the CEO. Any preliminary corrections are made by the preparing firm. Then, the (revised) draft is electronically transmitted to each Audit &amp; Finance (A&amp;F) Committee member, the CEO, and General Counsel prior to the February/ March A&amp;F Committee meeting. The 990 is presented to the A&amp;F Committee by the Institute's outside auditor; the A&amp;F Committee then has a chance to ask questions and discuss the document. When general agreement is reached, the committee approves the draft. If any changes are made, they are reviewed and approved by the A&amp;F Committee chairman, who then notifies the CFO that the CEO is authorized to sign and send the return to the appropriate federal authority.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>All staff are subject to an organization-wide conflict of interest policy. The organization also requires leadership and other key staff to submit a financial disclosure form annually.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The IBHS Board of Directors' Compensation Committee (comprising the three chairmen of the Board, Executive Committee, and Audit &amp; Finance Committee) annually reviews and approves all compensation for the CEO, as well as they advise the CEO on matters relating to performance-related salary adjustments and bonuses for all senior officers. Other key employees' compensation is reviewed annually by the CEO. No less than annually, the CEO and Senior Director for P&amp;O research compensation for comparable positions in similar organizations and locations to determine appropriateness of salary levels. The Institute also has a robust, comprehensive compensation structure that covers all employees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization does make its governing documents, conflict of interest policy, and financial statements available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Pension related changes other than net periodic pension -137,776. Rounding -5.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XII, Line 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization has an audit and finance committee that assumes responsibility for oversight of the audit of financial statements and selection of an independent auditor.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VIII, Line 1B</FormAndLineReferenceDesc>
        <ExplanationTxt>IBHS revenue is derived primarily from membership dues. These membership dues are considered a contribution and are recorded as revenue at the time the dues are received; not based on the underlying membership year. Membership dues received for the 2023 membership year totaled approximately $22.2M and were collected during 2022 and 2023.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part V, Line 2A</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization didn't file any Form W-2s for calendar year 2023 but has employees. Form W-2s were filed by Insperity Inc, as common paymaster and a related organization reported on Schedule J.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
