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        <PersonNm>JEFFREY A SINE</PersonNm>
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        <PersonNm>STEPHEN M STIGLER</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <PersonNm>HERBERT S WINOKUR JR</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
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        <PersonNm>LAURA BROWN</PersonNm>
        <TitleTxt>EVP, JSTOR MANAGING DIRECTOR</TitleTxt>
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        <PersonNm>CATHARINE BOND HILL</PersonNm>
        <TitleTxt>MANAGING DIRECTOR, ITHAKA S+R</TitleTxt>
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        <PersonNm>NANCY KOPANS</PersonNm>
        <TitleTxt>VP, GENERAL COUNSEL/SECRETARY</TitleTxt>
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        <PersonNm>GERARD AURIGEMMA</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
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        <PersonNm>KATE WITTENBERG</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ROBERT HETERICK</PersonNm>
        <TitleTxt>VP INST'L PARTICIPATION</TitleTxt>
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        <PersonNm>RAHUL BELANI</PersonNm>
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        <PersonNm>WILLIAM YING</PersonNm>
        <TitleTxt>CIO &amp; VP TECHNOLOGY, ARTSTOR</TitleTxt>
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        <PersonNm>JOHN LENAHAN</PersonNm>
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        <PersonNm>FRANK SMITH</PersonNm>
        <TitleTxt>DIRECTOR, BOOKS AT JSTOR</TitleTxt>
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        <PersonNm>DALE MYERS</PersonNm>
        <TitleTxt>VP PLATFORM ENGINEERING &amp; OPS</TitleTxt>
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        <PersonNm>JABIN WHITE</PersonNm>
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        <PersonNm>LACHONNE WALTON</PersonNm>
        <TitleTxt>VP, WORK LIFE AND CULTURE</TitleTxt>
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        <PersonNm>PIOTR ADAMCZYK</PersonNm>
        <TitleTxt>DIR, ARTSTOR DIGITAL LIBRARY</TitleTxt>
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        <PersonNm>CHRIS VANACORE</PersonNm>
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        <PersonNm>HEIDI BARTOLACCI</PersonNm>
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        <PersonNm>MEGAN MARLER</PersonNm>
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        <PersonNm>PERRY HEWITT</PersonNm>
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        <PersonNm>ALEX HUMPHREYS</PersonNm>
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        <PersonNm>ARCHIBALD COWAN</PersonNm>
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        <PersonNm>MARTIN KURZWEIL</PersonNm>
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        <PersonNm>GERARD AURIGEMMA</PersonNm>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>34</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>30900</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>288008</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ALEX HUMPHREYS</PersonNm>
        <TitleTxt>ASSOC VP JSTOR LABS</TitleTxt>
        <BaseCompensationFilingOrgAmt>200544</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>2000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>78</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>24572</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>227194</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>HEATHER JENSEN</PersonNm>
        <TitleTxt>DEPUTY GENERAL COUNSEL</TitleTxt>
        <BaseCompensationFilingOrgAmt>186789</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>2000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>126</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>22533</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>211448</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ARCHIBALD COWAN</PersonNm>
        <TitleTxt>CHIEF ARCHITECT</TitleTxt>
        <BaseCompensationFilingOrgAmt>183204</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>1000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>397</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>22495</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>207096</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARTIN KURZWEIL</PersonNm>
        <TitleTxt>DIRECTOR, ITHAKA S+R</TitleTxt>
        <BaseCompensationFilingOrgAmt>179240</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>22292</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>201532</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PART I, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>ITHAKA harbors, inc. MAINTAINS A 457(B) DEFERRED-COMPENSATION PLAN FOR ELIGIBLE EMPLOYEES, AS DESIGNATED AND APPROVED BY ITHAKA harbors inc.'s BOARD OF TRUSTEES. UNDER THE TERMS OF THIS PLAN, ELIGIBLE EMPLOYEES MAY MAKE ELECTIVE DEFERRALS UP TO THE MAXIMUM AMOUNT PERMITTED BY LAW. ITHAKA harbors, inc. DOES NOT CONTRIBUTE TO THIS PLAN. effective January 1, 2017 (i) all employees of Artstor were transitioned to Ithaka Harbors, Inc., (ii) the Artstor Retirement Plan was merged with the ITHAKA 403 Retirement Plan as of December 31, 2016, and (iii) the Section 457(b) deferred-compensation plan for eligible ARTSTOR employees was subsumed by Ithaka Harbors, Inc.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>JSTOR GENERATES INCOME TO SUPPORT ITS SERVICES PRIMARILY THROUGH AN ARCHIVE CAPITAL FEE ("ACF") AND ANNUAL ACCESS FEES ("AAF"). AN ACF IS A ONE-TIME, NON-REFUNDABLE FEE THAT PROVIDES FOR LONG-TERM PRESERVATION OF THE ARCHIVE AND OTHER MISSION-RELATED PURPOSES. AAF'S ARE CHARGED TO PARTICIPATING INSTITUTIONS TO COVER THE RECURRING COSTS OF UPDATING, MAINTAINING, AND PROVIDING ACCESS TO THE JSTOR JOURNAL ARCHIVES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY THE AUDIT AND RISK MANAGEMENT COMMITTEE AND IT APPROVES RELEASE TO THE ENTIRE BOARD FOR AN OPPORTUNITY TO REVIEW PRIOR TO ELECTRONIC FILING OF THE FORM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ITHAKA'S CONFLICTS OF INTEREST POLICY APPLIES TO ITS GOVERNING BOARD, CORPORATE OFFICERS, KEY EMPLOYEES, AND OTHERS REPRESENTING THE ORGANIZATION. MEMBERS OF ITHAKA'S GOVERNING BOARD ARE REQUIRED TO DISCLOSE ALL CONFLICTS OF INTEREST AT THE TIME THEY ARISE AND ANNUALLY VIA A WRITTEN DISCLOSURE PROCESS. THE AUDIT COMMITTEE IS CHARGED WITH REVIEWING CONFLICTS OF INTEREST TRANSACTIONS AND ASSOCIATED DECISIONS AND MAKING A DETERMINATION REGARDING ANY RESTRICTIONS TO BE IMPOSED ON THE TRANSACTION. ITHAKA'S OFFICERS AND KEY EMPLOYEES ARE LIKEWISE REQUIRED TO DISCLOSE TO THEIR SUPERVISORS PROMPTLY ALL CONFLICTS OF INTEREST THAT ARISE AND COMPLETE AN ANNUAL CONFLICTS OF INTEREST DISCLOSURE STATEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 15A &amp; 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION AND BENEFITS COMMITTEE OF THE BOARD CONDUCTS AN ANNUAL REVIEW OF OFFICERS' COMPENSATION AND THE COMPENSATION OF HIGHLY PAID EMPLOYEES. AS PART OF THIS REVIEW, THE COMMITTEE REFERENCES AVAILABLE MARKET DATA FOR COMPARABLE POSITIONS AND INTERNAL EQUITY CONSIDERATIONS, AND IT UTILIZES AN ANALYSIS OF OFFICER SALARIES USING INDUSTRY BENCHMARKING DATA FROM SEVERAL SOURCES. THE REVIEW PROCESS COVERS ALL OFFICERS AND HIGHLY PAID EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ITHAKA'S FORM 990 AND FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST. ITHAKA DOES NOT MAKE ANY OTHER GOVERNING DOCUMENTS AVAILABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>FEES FOR SERVICES - OTHER AS REPORTED ON FORM 990, PART IX, LINE 11G REPRESENTS THOSE COSTS INCURRED RELATED TO SOFTWARE DEVELOPMENT WHICH IS INTEGRAL TO ITHAKA'S VARIOUS PROGRAMS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER CHANGES IN NET ASSETS REPRESENTS A $122,385 WRITE-OFF OF UNCOLLECTIBLE FEES RECEIVABLES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <IdDisregardedEntitiesGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Ithaka International LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>2 RECTOR STREET</AddressLine1Txt>
          <CityNm>new york</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10006</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>BUS DEVLPMT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <EndOfYearAssetsAmt>37620</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ITHAKA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ARTSTOR INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>6 EAST 32ND STREET</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10016</ZIPCd>
        </USAddress>
        <EIN>300152767</EIN>
        <PrimaryActivitiesTxt>DIGITAL SVCS</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>509(A)(2)</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>ITHAKA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>true</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>true</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>