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            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>SG Americas Securities, LLC</custodianName>
            <custodianLei>549300F35UE0BOM1WJ55</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalCrdNo>000000361</principalCrdNo>
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            <principalTotalPurchaseSale>8079938540.67000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Daiwa Capital Markets America Inc.</principalName>
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            <principalCrdNo>000001576</principalCrdNo>
            <principalLei>M67H5PRC0NQKM73ZAS82</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3785560644.80000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
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          <principalTransaction>
            <principalName>Merrill Lynch, Pierce, Fenner &amp; Smith Inc.</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
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            <principalCrdNo>000016686</principalCrdNo>
            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3585938137.16000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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            <principalCrdNo>000116797</principalCrdNo>
            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>3520042991.41000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>2308024544.61000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>2747581691.79000000</principalTotalPurchaseSale>
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        <principalAggregatePurchase>49360263434.96009800</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>23932673888.31000100</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 1-5 Year Investment Grade Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013697</mgmtInvSeriesId>
        <mgmtInvLei>549300T14S5IX7V5T008</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 1-5 Year Investment Grade Corporate Bond ETF" sharesOutstandingClassId="C000037539" sharesOutstandingTickerSymbol="IGSB"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.11000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.11000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.18000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.18000000</indexFundReturnDailyStdevAfterExpense>
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          <masterFeederFundInfo fundType="Master-Feeder Fund">
            <feederFunds feederFundName="iShares 1-5 Year U.S. IG Corporate Bond Index ETF" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="549300L3FWVGXNDQQB47"/>
            <feederFunds feederFundName="iShares 1-5 Year U.S. IG Corporate Bond Index ETF (CAD-Hedged)" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="549300C2OIXPIGE0WM76"/>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
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        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>1363569365.12000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>4781392.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
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            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
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            <custodianName>SG Americas Securities, LLC</custodianName>
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            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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            <custodianName>State Street Bank and Trust Company</custodianName>
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            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
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            <adminName>State Street Bank and Trust Company</adminName>
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            <isAdminSubAdmin>N</isAdminSubAdmin>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalName>Barclays Capital Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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        </principalTransactions>
        <principalAggregatePurchase>35885756025.91000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>21698364910.74846153</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 10+ Year Investment Grade Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000026651</mgmtInvSeriesId>
        <mgmtInvLei>5493002XJCHL78PKW767</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 10+ Year Investment Grade Corporate Bond ETF" sharesOutstandingClassId="C000080009" sharesOutstandingTickerSymbol="IGLB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.12000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.12000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.64000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.64000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>232285644.64000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>740542.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>114452010.98000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>48351747.50000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>33985601.36000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>3967162369.12000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>39565186.87000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>29732463.97000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
            <principalFileNo>8-52275</principalFileNo>
            <principalCrdNo>000103782</principalCrdNo>
            <principalLei>549300ZM16HMPEPNV857</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>248906658.59000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Execution Services, LLC</principalName>
            <principalFileNo>8-69254</principalFileNo>
            <principalCrdNo>000167280</principalCrdNo>
            <principalLei>549300HXJLXCPDWAH070</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>27498336.77000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>121304702.71000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>789760000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>5545915244.08000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>2608064321.40846153</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 10-20 Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013696</mgmtInvSeriesId>
        <mgmtInvLei>549300MH5J7BUV0VS287</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 10-20 Year Treasury Bond ETF" sharesOutstandingClassId="C000037538" sharesOutstandingTickerSymbol="TLH"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.01000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.14000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.72000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.72000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>39853322.36000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>194130.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalTotalPurchaseSale>1814917966.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Merrill Lynch, Pierce, Fenner &amp; Smith Inc.</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3133101165.24000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>571621279.45000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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            <principalStateCountry principalState="US-FL" principalCountry="US"/>
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          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>302465543.83000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>13966460976.28000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>11597556986.92000000</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 20+ Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000004360</mgmtInvSeriesId>
        <mgmtInvLei>549300WWURKS1JGBZU59</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 20+ Year Treasury Bond ETF" sharesOutstandingClassId="C000012090" sharesOutstandingTickerSymbol="TLT"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.03000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.12000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.80000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.80000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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          </securityLending>
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>0.00000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>11264.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
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            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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          <custodian>
            <custodianName>Wells Fargo Securities LLC</custodianName>
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            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
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            <isAdminSubAdmin>N</isAdminSubAdmin>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>34755048833.02000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
            <principalCrdNo>000002525</principalCrdNo>
            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>5382463728.91000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Merrill Lynch, Pierce, Fenner &amp; Smith Inc.</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
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            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
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          <principalTransaction>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
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        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
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            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
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            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
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        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 25+ Year Treasury STRIPS Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000069558</mgmtInvSeriesId>
        <mgmtInvLei>5493001UGNV6MYE85175</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
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        <fundTypes>
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          <indexFundInfo fundType="Index Fund">
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            <indexFundReturnDiffAfterExpense>0.02000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>1.32000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>1.32000000</indexFundReturnDailyStdevAfterExpense>
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        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
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                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>30904.96000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>115.00000000</netIncomeSecuritiesLending>
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          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
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            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Merrill Lynch, Pierce, Fenner &amp; Smith Inc.</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
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          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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            <principalStateCountry principalState="US-FL" principalCountry="US"/>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>National Securities Clearing Corp.</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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        <principalAggregatePurchase>430482761.10000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>294936279.95000000</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
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            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 3-7 Year Treasury Bond ETF</mgmtInvFundName>
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        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 3-7 Year Treasury Bond ETF" sharesOutstandingClassId="C000037537" sharesOutstandingTickerSymbol="IEI"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.01000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.15000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.34000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.34000000</indexFundReturnDailyStdevAfterExpense>
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        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
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          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
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        <netIncomeSecuritiesLending>64689.00000000</netIncomeSecuritiesLending>
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          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
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            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
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        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
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            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
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        <custodians>
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            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
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            <adminName>JPMorgan Chase Bank, N.A.</adminName>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
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            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalName>Nomura Securities International, Inc.</principalName>
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        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 5-10 Year Investment Grade Corporate Bond ETF" sharesOutstandingClassId="C000037540" sharesOutstandingTickerSymbol="IGIB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.06000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.06000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.41000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.41000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>1707420711.22000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>5101921.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1691088795.95000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1055682269.66000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>463030941.83000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>7785919007.72000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1414977043.34000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>681284174.59000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
            <principalFileNo>8-52275</principalFileNo>
            <principalCrdNo>000103782</principalCrdNo>
            <principalLei>549300ZM16HMPEPNV857</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>884675594.93000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Execution Services, LLC</principalName>
            <principalFileNo>8-69254</principalFileNo>
            <principalCrdNo>000167280</principalCrdNo>
            <principalLei>549300HXJLXCPDWAH070</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>360385541.09000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1060588828.13000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>5181980000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>23069331749.33000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>16232382705.25307692</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 7-10 Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000004358</mgmtInvSeriesId>
        <mgmtInvLei>549300XS1PPZG92M8L16</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 7-10 Year Treasury Bond ETF" sharesOutstandingClassId="C000012088" sharesOutstandingTickerSymbol="IEF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.01000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.14000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.50000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.50000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>31257.49000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>1689203.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Merrill Lynch, Pierce, Fenner &amp; Smith Inc.</principalName>
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            <principalTotalPurchaseSale>16829937474.21000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Barclays Capital, Inc.</principalName>
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            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
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          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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        <principalAggregatePurchase>90876708010.22980000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>39151708860.71000000</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Agency Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000023506</mgmtInvSeriesId>
        <mgmtInvLei>54930076RN5EDP4FSR30</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Agency Bond ETF" sharesOutstandingClassId="C000069125" sharesOutstandingTickerSymbol="AGZ"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.03000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.17000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.49000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.49000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>4540519.67000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>9483.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>183704668.55000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>90551860.56000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
            <principalFileNo>8-15255</principalFileNo>
            <principalCrdNo>000004297</principalCrdNo>
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            <principalTotalPurchaseSale>81603474.43000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalName>Natwest Markets Securities Inc.</principalName>
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            <principalLei>ZE2ZWJ5BTIQJ8M0C6K34</principalLei>
            <principalStateCountry principalState="US-CT" principalCountry="US"/>
            <principalTotalPurchaseSale>159808004.38000000</principalTotalPurchaseSale>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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            <principalStateCountry principalState="US-FL" principalCountry="US"/>
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          <principalTransaction>
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            <principalStateCountry principalState="US-NC" principalCountry="US"/>
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          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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        <principalAggregatePurchase>1374764467.29000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>607076710.49000001</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
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            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares BBB Rated Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000071770</mgmtInvSeriesId>
        <mgmtInvLei>549300LLQ2RTRMS0KN04</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
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        <fundTypes>
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          <indexFundInfo fundType="Index Fund">
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            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.08000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.07000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.25000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.25000000</indexFundReturnDailyStdevAfterExpense>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>106172229.30000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>6189.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
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          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
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            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1999751.11000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Barclays Capital, Inc.</principalName>
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            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1203462.00000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>5171886.57000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>National Securities Clearing Corp.</principalName>
            <principalFileNo>N/A</principalFileNo>
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            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>8557856.87000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>10549807.06000000</principalTotalPurchaseSale>
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        <principalAggregatePurchase>35113401.60000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>45462160.57000000</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Broad USD Investment Grade Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013699</mgmtInvSeriesId>
        <mgmtInvLei>5493004QFMCNV0WLX398</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Broad USD Investment Grade Corporate Bond ETF" sharesOutstandingClassId="C000037541" sharesOutstandingTickerSymbol="USIG"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.05000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.05000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.38000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.38000000</indexFundReturnDailyStdevAfterExpense>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
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        <netIncomeSecuritiesLending>4196271.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
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        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
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            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
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        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
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            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
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            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
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          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
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            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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          <custodian>
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            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
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            <adminName>State Street Bank and Trust Company</adminName>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <brokerDealer>
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        <aggregateCommission>0.00000000</aggregateCommission>
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            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalName>Barclays Capital Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>3459360000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>14472907462.10000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>14635238407.55615384</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares California Muni Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000019341</mgmtInvSeriesId>
        <mgmtInvLei>5493005PBQ3IFT3REX09</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares California Muni Bond ETF" sharesOutstandingClassId="C000053739" sharesOutstandingTickerSymbol="CMF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.10000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.18000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.22000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.22000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>0.00000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>0.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>LSEG US FIN CORP.</pricingServiceName>
            <pricingServiceLei>2138007FV67QQ13CGJ43</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-DE" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1437524972.98000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-00129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>390340289.48000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>188163555.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Pershing LLC</principalName>
            <principalFileNo>8-17574</principalFileNo>
            <principalCrdNo>000007560</principalCrdNo>
            <principalLei>ZI8Q1A8EI8LQFJNM0D94</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>143201281.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>367065814.90000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Financial Services LLC</principalName>
            <principalFileNo>8-26740</principalFileNo>
            <principalCrdNo>000013041</principalCrdNo>
            <principalLei>549300JRHF1MHHWUAW04</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>144078086.10000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital, Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>295828500.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>467702158.15000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>218284264.85000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>294910859.60000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>4238667217.56000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>3660454215.11999990</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Core 10+ Year USD Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000026652</mgmtInvSeriesId>
        <mgmtInvLei>549300AS0BPHN7FEW779</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Core 10+ Year USD Bond ETF" sharesOutstandingClassId="C000080010" sharesOutstandingTickerSymbol="ILTB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.06000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.06000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.73000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.73000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>4633060.01000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>36493.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>J.P. Morgan Securities LLC</custodianName>
            <custodianLei>ZBUT11V806EZRVTWT807</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <brokerDealer>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
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        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
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          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Core 5-10 Year USD Bond ETF</mgmtInvFundName>
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        <numTerminatedClass>0</numTerminatedClass>
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            <indexFundReturnDiffAfterExpense>-0.10000000</indexFundReturnDiffAfterExpense>
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            <indexFundReturnDailyStdevAfterExpense>0.44000000</indexFundReturnDailyStdevAfterExpense>
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        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
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          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
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          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
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        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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          <brokerDealer>
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          </indexFundInfo>
          <masterFeederFundInfo fundType="Master-Feeder Fund">
            <feederFunds feederFundName="iShares U.S. Aggregate Bond Index ETF" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="549300YFEJT0WK25HR81"/>
            <feederFunds feederFundName="iShares U.S. Aggregate Bond Index ETF (CAD-Hedged)" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="549300NRTXUZAUPJ8B89"/>
          </masterFeederFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>554176169.49000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>3309785.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>J.P. Morgan Securities LLC</custodianName>
            <custodianLei>ZBUT11V806EZRVTWT807</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>35322826948.45000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>18552860429.10000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>26729724330.56000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>31898795036.78000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>12229271566.54000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3229020578.22000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
            <principalFileNo>8-53574</principalFileNo>
            <principalCrdNo>000116797</principalCrdNo>
            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>2832392305.41000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>6627864005.51000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>26179671229.74000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Institutional</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300JDHS1T46VWOG19</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>26157726861.56000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>201476897429.21000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>131086195441.42076923</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>ABS-mortgage backed security</assetClassType>
            <assetClassType>ABS-other</assetClassType>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares ESG Advanced Universal USD Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000068817</mgmtInvSeriesId>
        <mgmtInvLei>5493003MW3304SOSOX56</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares ESG Advanced Universal USD Bond ETF" sharesOutstandingClassId="C000219898" sharesOutstandingTickerSymbol="EUSB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.12000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.12000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.36000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.36000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>5615980.17000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>49459.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
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          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
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          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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        <principalAggregatePurchase>1548073638.89000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>707141002.85461538</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>ABS-mortgage backed security</assetClassType>
            <assetClassType>ABS-other</assetClassType>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
            <assetClassType>Structured note</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares ESG Aware 1-5 Year USD Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000058036</mgmtInvSeriesId>
        <mgmtInvLei>549300A3SLEQ53E2BD05</mgmtInvLei>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares ESG Aware 1-5 Year USD Corporate Bond ETF" sharesOutstandingClassId="C000189864" sharesOutstandingTickerSymbol="SUSB"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
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            <indexFundReturnDiffAfterExpense>-0.10000000</indexFundReturnDiffAfterExpense>
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            <indexFundReturnDailyStdevAfterExpense>0.23000000</indexFundReturnDailyStdevAfterExpense>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
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          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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        <paymentToAgentManagers>
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          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>45440628.68000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>116776.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
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            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
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        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
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            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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            <pricingServiceCountry>GB</pricingServiceCountry>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
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            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
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            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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        </custodians>
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        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
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            <adminName>State Street Bank and Trust Company</adminName>
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            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <brokerDealer>
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        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1020722730.58615384</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
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        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>11146771.34000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>51114.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Royal Bank of Canada</custodianName>
            <custodianLei>ES7IP3U3RHIGC71XBU11</custodianLei>
            <custodianCountry>CA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Trust Company Canada</custodianName>
            <custodianLei>549300L71XG2CTQ2V827</custodianLei>
            <custodianCountry>CA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1270908466.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1215554664.82000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1363390944.11000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1624361982.07000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>552214516.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>103100667.83000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
            <principalFileNo>8-53574</principalFileNo>
            <principalCrdNo>000116797</principalCrdNo>
            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>80017369.10000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>303872841.55000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1377230392.29000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Institutional</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300JDHS1T46VWOG19</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>1188326405.58000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>9561935835.19000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>4131644668.39461538</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>ABS-mortgage backed security</assetClassType>
            <assetClassType>ABS-other</assetClassType>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares ESG Aware USD Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000058037</mgmtInvSeriesId>
        <mgmtInvLei>549300HXNJ8AFSTTJQ11</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares ESG Aware USD Corporate Bond ETF" sharesOutstandingClassId="C000189865" sharesOutstandingTickerSymbol="SUSC"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.13000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.13000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.48000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.48000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>76268427.12000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>190529.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>36835184.51000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>67013458.17000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>281225481.19000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>51569329.72000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
            <principalFileNo>8-32682</principalFileNo>
            <principalCrdNo>000015794</principalCrdNo>
            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>15245496.92000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>14867736.42000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>18192684.78000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Execution Services, LLC</principalName>
            <principalFileNo>8-69254</principalFileNo>
            <principalCrdNo>000167280</principalCrdNo>
            <principalLei>549300HXJLXCPDWAH070</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>37444331.91000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>27800481.41000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>293370000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>950997266.67000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1228939765.57230769</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Government/Credit Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013701</mgmtInvSeriesId>
        <mgmtInvLei>5493005N2TW2082UOF16</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Government/Credit Bond ETF" sharesOutstandingClassId="C000037543" sharesOutstandingTickerSymbol="GBF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.17000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.17000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.43000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.43000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>637771.06000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>3320.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>J.P. Morgan Securities LLC</custodianName>
            <custodianLei>ZBUT11V806EZRVTWT807</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>9413459.59000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3344669.61000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4852670.28000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4095599.42000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
            <principalFileNo>8-34344</principalFileNo>
            <principalCrdNo>000016686</principalCrdNo>
            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>7253958.85000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4086780.68000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
            <principalFileNo>8-52275</principalFileNo>
            <principalCrdNo>000103782</principalCrdNo>
            <principalLei>549300ZM16HMPEPNV857</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>10131927.10000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
            <principalFileNo>8-53574</principalFileNo>
            <principalCrdNo>000116797</principalCrdNo>
            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>5575960.56000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>22648320.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>24510000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>116536667.24000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>139754275.46538461</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares High Yield Systematic Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000057341</mgmtInvSeriesId>
        <mgmtInvLei>54930005IQ49IXN46616</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares High Yield Systematic Bond ETF" sharesOutstandingClassId="C000182992" sharesOutstandingTickerSymbol="HYDB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-1.00000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-1.00000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.44000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.44000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>312784945.33000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>1771921.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Oslo, Oslo, NO, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>NO</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>J.P. Morgan Securities LLC</brokerName>
            <brokerFileNo>8-35008</brokerFileNo>
            <brokerCrdNo>000000079</brokerCrdNo>
            <brokerLei>ZBUT11V806EZRVTWT807</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>0.02000000</grossCommission>
          </broker>
          <broker>
            <brokerName>BTIG, LLC</brokerName>
            <brokerFileNo>8-65473</brokerFileNo>
            <brokerCrdNo>000122225</brokerCrdNo>
            <brokerLei>549300GTG9PL6WO3EC51</brokerLei>
            <brokerStateCountry brokerState="US-CA" brokerCountry="US"/>
            <grossCommission>10095.21000000</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>10095.23000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>744505939.88000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>524199730.72000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>196054341.38000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>304815345.56000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>462773834.86000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>322234566.88000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>122898453.85000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
            <principalFileNo>8-52275</principalFileNo>
            <principalCrdNo>000103782</principalCrdNo>
            <principalLei>549300ZM16HMPEPNV857</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>128052532.87000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>313371937.32000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>1049800000.00000000</principalTotalPurchaseSale>
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        </principalTransactions>
        <principalAggregatePurchase>4727886865.58000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1601084489.24307692</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Equity-common</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Intermediate Government/Credit Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013700</mgmtInvSeriesId>
        <mgmtInvLei>549300USOBX01WS0GK74</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Intermediate Government/Credit Bond ETF" sharesOutstandingClassId="C000037542" sharesOutstandingTickerSymbol="GVI"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.19000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.19000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.31000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.31000000</indexFundReturnDailyStdevAfterExpense>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>15624506.29000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>79112.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>774383680.60000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>272503913.78000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Daiwa Capital Markets America Inc.</principalName>
            <principalFileNo>8-12242</principalFileNo>
            <principalCrdNo>000001576</principalCrdNo>
            <principalLei>M67H5PRC0NQKM73ZAS82</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>77645296.19000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalCrdNo>000008209</principalCrdNo>
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            <principalTotalPurchaseSale>99816795.98000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
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            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>83790736.90000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
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            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>184036226.53000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
            <principalFileNo>8-53574</principalFileNo>
            <principalCrdNo>000116797</principalCrdNo>
            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>187933009.28000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>78399509.77000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>243845391.24000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>671250000.00000000</principalTotalPurchaseSale>
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        </principalTransactions>
        <principalAggregatePurchase>3117801971.63000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>3610129220.33615384</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Investment Grade Systematic Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000057342</mgmtInvSeriesId>
        <mgmtInvLei>549300QBLHV9U0KL0M22</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Investment Grade Systematic Bond ETF" sharesOutstandingClassId="C000182993" sharesOutstandingTickerSymbol="IGEB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.20000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.20000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.44000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.44000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>78409789.72000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>200346.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
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            <principalTotalPurchaseSale>479803681.53000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>175106324.56000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>207744800.51000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>HSBC Securities (USA) Inc.</principalName>
            <principalFileNo>8-41562</principalFileNo>
            <principalCrdNo>000019585</principalCrdNo>
            <principalLei>CYYGQCGNHMHPSMRL3R97</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
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            <principalLei>AC28XWWI3WIBK2824319</principalLei>
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            <principalTotalPurchaseSale>95031680.21000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
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            <principalCrdNo>000103782</principalCrdNo>
            <principalLei>549300ZM16HMPEPNV857</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>123040793.96000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>42399827.94000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Jane Street Execution Services, LLC</principalName>
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            <principalLei>549300HXJLXCPDWAH070</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>263483385.50000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>288717145.62000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>284620000.00000000</principalTotalPurchaseSale>
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        <principalAggregatePurchase>2419168132.78000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1304478180.45692307</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Long-Term National Muni Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000091081</mgmtInvSeriesId>
        <mgmtInvLei>529900PJZFTEDNFY8R39</mgmtInvLei>
        <isFirstFilingByFund>Y</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Long-Term National Muni Bond ETF" sharesOutstandingClassId="C000258476" sharesOutstandingTickerSymbol="LMUB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.21000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.13000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.47000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.47000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
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        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>0.00000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>0.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
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            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
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            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
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            <isAdminSubAdmin>N</isAdminSubAdmin>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
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            <principalName>Pershing LLC</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>TMC Bonds L.L.C.</principalName>
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            <principalLei>N/A</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>ICE Securities Execution &amp; Clearing, LLC</principalName>
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          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
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            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>25796679.38000000</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
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            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
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        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares MBS ETF</mgmtInvFundName>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
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            <isIndexFundExclusive>N</isIndexFundExclusive>
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            <indexFundReturnDiffAfterExpense>-0.08000000</indexFundReturnDiffAfterExpense>
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            <indexFundReturnDailyStdevAfterExpense>0.50000000</indexFundReturnDailyStdevAfterExpense>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
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        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
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        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
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        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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          <pricingService>
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        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
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        <brokerDealers>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>0.00000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>0.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>LSEG US FIN CORP.</pricingServiceName>
            <pricingServiceLei>2138007FV67QQ13CGJ43</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-DE" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>6096766525.15000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-00129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1419982381.96000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1133209567.20000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Pershing LLC</principalName>
            <principalFileNo>8-17574</principalFileNo>
            <principalCrdNo>000007560</principalCrdNo>
            <principalLei>ZI8Q1A8EI8LQFJNM0D94</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>964164607.52000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1593421212.50000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital, Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2389016886.60000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1233834814.95000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>1170813132.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3971263217.67000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>8994915323.12000100</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>31072251464.77000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>40226540499.52999900</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares New York Muni Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000019342</mgmtInvSeriesId>
        <mgmtInvLei>549300U0W2QKLJLFRJ55</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares New York Muni Bond ETF" sharesOutstandingClassId="C000053740" sharesOutstandingTickerSymbol="NYF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.11000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.04000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.23000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.23000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>0.00000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>0.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>LSEG US FIN CORP.</pricingServiceName>
            <pricingServiceLei>2138007FV67QQ13CGJ43</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-DE" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>156975502.32000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-00129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>24840472.55000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>102022452.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Pershing LLC</principalName>
            <principalFileNo>8-17574</principalFileNo>
            <principalCrdNo>000007560</principalCrdNo>
            <principalLei>ZI8Q1A8EI8LQFJNM0D94</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>66303190.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>60768652.70000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Financial Services LLC</principalName>
            <principalFileNo>8-26740</principalFileNo>
            <principalCrdNo>000013041</principalCrdNo>
            <principalLei>549300JRHF1MHHWUAW04</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>43946354.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital, Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>140914378.80000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>60149644.85000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>113666383.30000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>233803147.38000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1057213348.55000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>963961143.55999994</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Short-Term National Muni Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000023507</mgmtInvSeriesId>
        <mgmtInvLei>5493006UX6BTVQQ8GI65</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Short-Term National Muni Bond ETF" sharesOutstandingClassId="C000069126" sharesOutstandingTickerSymbol="SUB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.02000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.09000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.10000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.10000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>0.00000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>0.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>JPMorgan Chase Bank, N.A.</transferAgentName>
            <transferAgentFileNo>85-11399</transferAgentFileNo>
            <transferAgentLei>7H6GLXDRUGQFU57RNE97</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-NY" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Pricing &amp; Reference Data, LLC</pricingServiceName>
            <pricingServiceLei>5493000NQ9LYLDBCTL34</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>LSEG US FIN CORP.</pricingServiceName>
            <pricingServiceLei>2138007FV67QQ13CGJ43</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-DE" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>JPMorgan Chase Bank, N.A.</custodianName>
            <custodianLei>7H6GLXDRUGQFU57RNE97</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>JPMorgan Chase Bank, N.A.</adminName>
            <adminLei>7H6GLXDRUGQFU57RNE97</adminLei>
            <adminStateCountry adminState="US-NY" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2292621602.20000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-00129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>393476946.17000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Pershing LLC</principalName>
            <principalFileNo>8-17574</principalFileNo>
            <principalCrdNo>000007560</principalCrdNo>
            <principalLei>ZI8Q1A8EI8LQFJNM0D94</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
            <principalTotalPurchaseSale>348706077.26000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>626661833.98000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Financial Services LLC</principalName>
            <principalFileNo>8-26740</principalFileNo>
            <principalCrdNo>000013041</principalCrdNo>
            <principalLei>549300JRHF1MHHWUAW04</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>390321419.90000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital, Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>782841325.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>371286277.85000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>653985412.70000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1253036782.95000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds T-Fund</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493002L9DNZ83RX7V61</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>4388628774.72000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>12390170409.86000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>9934117105.26000000</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Total USD Fixed Income Market ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000097904</mgmtInvSeriesId>
        <mgmtInvLei>529900KS4L804Y6FDG04</mgmtInvLei>
        <isFirstFilingByFund>Y</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Total USD Fixed Income Market ETF" sharesOutstandingClassId="C000267414" sharesOutstandingTickerSymbol="BTOT"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.36000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.36000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.18000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.18000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company (Edinburgh, GB, Branch)</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianCountry>GB</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>Y</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3396920.69000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1666376.10000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2641321.13000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4897556.36000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
            <principalFileNo>8-34344</principalFileNo>
            <principalCrdNo>000016686</principalCrdNo>
            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1198673.85000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
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            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1565789.20000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Stonex Financial Inc.</principalName>
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            <principalLei>549300LNKU6K5TJCRG93</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>736510.72000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
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            <principalCrdNo>000103782</principalCrdNo>
            <principalLei>549300ZM16HMPEPNV857</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3929319.90000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>5705959.07000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Institutional</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300JDHS1T46VWOG19</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>3162582.45000000</principalTotalPurchaseSale>
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        </principalTransactions>
        <principalAggregatePurchase>34531347.70000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>25144826.51333333</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>ABS-mortgage backed security</assetClassType>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Loan</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares iBoxx $ High Yield Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000016772</mgmtInvSeriesId>
        <mgmtInvLei>549300FCCXHK7O37PQ68</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares iBoxx $ High Yield Corporate Bond ETF" sharesOutstandingClassId="C000046846" sharesOutstandingTickerSymbol="HYG"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.36000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.36000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.29000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.29000000</indexFundReturnDailyStdevAfterExpense>
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          <masterFeederFundInfo fundType="Master-Feeder Fund">
            <feederFunds feederFundName="iShares USD High Yield Corporate Bond JPY Hedged ETF" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="353800JC117835Q80D32"/>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>2711391634.01000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>13022714.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(e) (17 CFR 270.18f-4(e))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
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            <custodianCountry>NL</custodianCountry>
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            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
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          <custodian>
            <custodianName>Euroclear Bank</custodianName>
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            <custodianCountry>BE</custodianCountry>
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            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
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          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
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            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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        </custodians>
        <isCustodianHiredOrTerminated>Y</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
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            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
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            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
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            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
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          <broker>
            <brokerName>TD Securities (USA) LLC</brokerName>
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            <brokerCrdNo>000018476</brokerCrdNo>
            <brokerLei>SUVUFHICNZMP2WKHG940</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8123.65000000</grossCommission>
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        <aggregateCommission>8123.65000000</aggregateCommission>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalTotalPurchaseSale>10602693096.33000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalName>Barclays Capital Inc.</principalName>
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            <principalName>Wells Fargo Securities, LLC</principalName>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
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        <principalAggregatePurchase>78517715315.73000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>17161654961.14076923</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Equity-common</assetClassType>
            <assetClassType>Equity-preferred</assetClassType>
            <assetClassType>Loan</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares iBoxx $ Investment Grade Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000004361</mgmtInvSeriesId>
        <mgmtInvLei>549300FYCXFXG8POR355</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares iBoxx $ Investment Grade Corporate Bond ETF" sharesOutstandingClassId="C000012091" sharesOutstandingTickerSymbol="LQD"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.06000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.06000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.25000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.25000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
          <masterFeederFundInfo fundType="Master-Feeder Fund">
            <feederFunds feederFundName="iShares U.S. IG Corporate Bond Index ETF" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="549300D6X6BFDA8J5E77"/>
            <feederFunds feederFundName="iShares U.S. IG Corporate Bond Index ETF (CAD-Hedged)" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="GTOHDQTL64Z202HQYF91"/>
            <feederFunds feederFundName="iShares USD Investment Grade Corporate Bond JPY Hedged ETF" regFeederFundFileNo="N/A" regFeederFundSeriesIdNo="N/A" regFeederFundLei="N/A" unregFeederFileNo="N/A" unregFeederFundLei="3538009W6RXDDKB43Y23"/>
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        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock Finance, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>1971063837.33000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>5038571.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceOther>13-3668779</pricingServiceOther>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-GA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>HPS Securities, LLC</brokerDealerName>
            <brokerDealerFileNo>8-70910</brokerDealerFileNo>
            <brokerDealerCrdNo>000319197</brokerDealerCrdNo>
            <brokerDealerLei>N/A</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1527454351.22000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalCrdNo>000000361</principalCrdNo>
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            <principalTotalPurchaseSale>1174105494.25000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
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            <principalName>National Securities Clearing Corporation</principalName>
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            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NJ" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
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          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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        <principalAggregatePurchase>137572461071.24000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>30300458530.83615384</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <liquidityClassifications>
          <liquidityClassificationService>
            <liquidityName>BlackRock Fund Advisors</liquidityName>
            <liquidityLei>549300YOOGP0Y1M95C20</liquidityLei>
            <liquidityStateCountry liquidityCountry="US" liquidityState="US-CA"/>
            <isAffiliatedPerson>Y</isAffiliatedPerson>
            <assetClassType>Debt</assetClassType>
            <assetClassType>Short-term investment vehicle</assetClassType>
          </liquidityClassificationService>
        </liquidityClassifications>
        <isLiquidityHiredTerminated>N</isLiquidityHiredTerminated>
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    <exchangeSeriesInfo>
      <exchangeTradedFund>
        <fundName>iShares 0-1 Year Treasury Bond ETF</fundName>
        <etfSeriesId>S000013694</etfSeriesId>
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          <securityExchange fundExchange="XNYS" fundsTickerSymbol="SHV"/>
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        <isInKindETF>N</isInKindETF>
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    </exchangeSeriesInfo>
    <attachmentsTab>
      <isIPAReportInternalControl>true</isIPAReportInternalControl>
    </attachmentsTab>
    <signature registrantSignedName="iShares Trust" signedDate="2026-05-13" signature="Chuck Pulsfort" title="Assistant Treasurer"/>
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</edgarSubmission>
