<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns="http://www.sec.gov/edgar/ncen" xmlns:com="http://www.sec.gov/edgar/common">
  <schemaVersion>X0201</schemaVersion>
  <headerData>
    <submissionType>N-CEN</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0000742212</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
        <fileNumber>811-03990</fileNumber>
      </filer>
      <flags>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
        <confirmingCopyFlag>false</confirmingCopyFlag>
      </flags>
      <investmentCompanyType>N-1A</investmentCompanyType>
    </filerInfo>
    <seriesClass>
      <reportSeriesClass>
        <rptSeriesClassInfo>
          <seriesId>S000000040</seriesId>
          <classInfo>
            <classId>C000000075</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000046</seriesId>
          <classInfo>
            <classId>C000000081</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000051</seriesId>
          <classInfo>
            <classId>C000000086</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018235</seriesId>
          <classInfo>
            <classId>C000050283</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018228</seriesId>
          <classInfo>
            <classId>C000050276</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018229</seriesId>
          <classInfo>
            <classId>C000050277</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000042</seriesId>
          <classInfo>
            <classId>C000000077</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000045</seriesId>
          <classInfo>
            <classId>C000000080</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018227</seriesId>
          <classInfo>
            <classId>C000050275</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000049</seriesId>
          <classInfo>
            <classId>C000000084</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000052</seriesId>
          <classInfo>
            <classId>C000000087</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018230</seriesId>
          <classInfo>
            <classId>C000050278</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000050</seriesId>
          <classInfo>
            <classId>C000000085</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000041</seriesId>
          <classInfo>
            <classId>C000000076</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000053</seriesId>
          <classInfo>
            <classId>C000000088</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018232</seriesId>
          <classInfo>
            <classId>C000050280</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018234</seriesId>
          <classInfo>
            <classId>C000050282</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018231</seriesId>
          <classInfo>
            <classId>C000050279</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000044</seriesId>
          <classInfo>
            <classId>C000000079</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000056</seriesId>
          <classInfo>
            <classId>C000000091</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000055</seriesId>
          <classInfo>
            <classId>C000000090</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000048</seriesId>
          <classInfo>
            <classId>C000000083</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000018233</seriesId>
          <classInfo>
            <classId>C000050281</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000047</seriesId>
          <classInfo>
            <classId>C000000082</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000054</seriesId>
          <classInfo>
            <classId>C000000089</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000039</seriesId>
          <classInfo>
            <classId>C000000074</classId>
          </classInfo>
        </rptSeriesClassInfo>
        <rptSeriesClassInfo>
          <seriesId>S000000043</seriesId>
          <classInfo>
            <classId>C000000078</classId>
          </classInfo>
        </rptSeriesClassInfo>
      </reportSeriesClass>
    </seriesClass>
  </headerData>
  <formData>
    <generalInfo reportEndingPeriod="2019-12-31" isReportPeriodLt12="N"/>
    <registrantInfo>
      <registrantFullName>NORTHWESTERN MUTUAL SERIES FUND INC</registrantFullName>
      <investmentCompFileNo>811-03990</investmentCompFileNo>
      <registrantCik>0000742212</registrantCik>
      <registrantLei>549300T1UBX7MDSNZA55</registrantLei>
      <registrantstreet1>720 E WISCONSIN AVE</registrantstreet1>
      <registrantcity>MILWAUKEE</registrantcity>
      <registrantzipCode>53202</registrantzipCode>
      <registrantstate>US-WI</registrantstate>
      <registrantcountry>US</registrantcountry>
      <registrantphoneNumber>414-271-1444</registrantphoneNumber>
      <websites>
        <website webpage="www.nmseriesfund.com"/>
      </websites>
      <locationBooksRecords>
        <locationBooksRecord>
          <officeName>State Street Bank and Trust Company</officeName>
          <officeAddress1>1 Lincoln Street</officeAddress1>
          <officeCity>Boston</officeCity>
          <officeStateCountry officeCountry="US" officeState="US-MA"/>
          <officeRecordsZipCode>02111</officeRecordsZipCode>
          <officePhone>617-786-3000</officePhone>
          <booksRecordsDesc>Custody and Accounting Records.</booksRecordsDesc>
        </locationBooksRecord>
        <locationBooksRecord>
          <officeName>The Northwestern Mutual Life Insurance Company</officeName>
          <officeAddress1>720 East Wisconsin Avenue</officeAddress1>
          <officeCity>Milwaukee</officeCity>
          <officeStateCountry officeCountry="US" officeState="US-WI"/>
          <officeRecordsZipCode>53202-4797</officeRecordsZipCode>
          <officePhone>414-271-1444</officePhone>
          <booksRecordsDesc>Account, book or other document required to be maintained by Section 31(a) of the 1940 Act and Rules 17 CFR SS 270-31a-1 to 31a-3 promulgated thereunder</booksRecordsDesc>
        </locationBooksRecord>
        <locationBooksRecord>
          <officeName>Mason Street Advisors, LLC</officeName>
          <officeAddress1>720 East Wisconsin Avenue</officeAddress1>
          <officeCity>Milwaukee</officeCity>
          <officeStateCountry officeCountry="US" officeState="US-WI"/>
          <officeRecordsZipCode>53202-4703</officeRecordsZipCode>
          <officePhone>N-A</officePhone>
          <booksRecordsDesc>Account, book or other document required to be maintained by Section 31(a) of the 1940 Act and Rules 17 CFR SS 270-31a-1 to 31a-3 promulgated thereunder</booksRecordsDesc>
        </locationBooksRecord>
      </locationBooksRecords>
      <isRegistrantFirstFiling>N</isRegistrantFirstFiling>
      <isRegistrantLastFiling>N</isRegistrantLastFiling>
      <isRegistrantFamilyInvComp>N</isRegistrantFamilyInvComp>
      <registrantClassificationType>N-1A</registrantClassificationType>
      <totalSeries>27</totalSeries>
      <isSecuritiesActRegistration>Y</isSecuritiesActRegistration>
      <directors>
        <director>
          <directorName>David Ribbens</directorName>
          <crdNumber>000144894</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="N/A"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Ronald P. Joelson</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>Y</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="N/A"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Donald M. Ullmann</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="N/A"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Christy L. Brown</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="N/A"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Robert H. Huffman III</directorName>
          <crdNumber>001132934</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="N/A"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Gail L. Hanson</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-08932"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>Miriam M. Allison</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="811-04920"/>
          </fileNumbers>
        </director>
        <director>
          <directorName>William J. Gerber</directorName>
          <crdNumber>000000000</crdNumber>
          <isDirectorInterestedPerson>N</isDirectorInterestedPerson>
          <fileNumbers>
            <fileNumberInfo fileNumber="N/A"/>
          </fileNumbers>
        </director>
      </directors>
      <chiefComplianceOfficers>
        <chiefComplianceOfficer>
          <ccoName>Randy M. Pavlick</ccoName>
          <crdNumber>002660106</crdNumber>
          <ccoStreet1>720 East Wisconsin Avenue</ccoStreet1>
          <ccoCity>Milwaukee</ccoCity>
          <ccoStateCountry ccoCountry="US" ccoState="US-WI"/>
          <ccoZipCode>53202</ccoZipCode>
          <ccoPhone>XXXXXX</ccoPhone>
          <isCcoChangedSinceLastFiling>N</isCcoChangedSinceLastFiling>
          <ccoEmployers>
            <ccoEmployer ccoEmployerName="N/A" ccoEmployerId="N/A"/>
          </ccoEmployers>
        </chiefComplianceOfficer>
      </chiefComplianceOfficers>
      <isRegistrantSubmittedMatter>N</isRegistrantSubmittedMatter>
      <legalProceedingSeriesInfo isPreviousLegalProceeding="Y">
        <seriesInfo seriesName="Equity Income Portfolio" seriesId="S000000042"/>
        <seriesInfo seriesName="Index 500 Stock Portfolio" seriesId="S000000043"/>
        <seriesInfo seriesName="Small Cap Value Portfolio" seriesId="S000000049"/>
      </legalProceedingSeriesInfo>
      <isPreviousProceedingTerminated>N</isPreviousProceedingTerminated>
      <isClaimFiled>N</isClaimFiled>
      <coveredByInsurancePolicy isCoveredByInsurancePolicy="Y" isClaimFiledDuringPeriod="N"/>
      <isFinancialSupportDuringPeriod>N</isFinancialSupportDuringPeriod>
      <releaseNumbers isExemptionFromAct="Y">
        <releaseNumberInfo releaseNumber="IC-27520"/>
        <releaseNumberInfo releaseNumber="IC-26006"/>
        <releaseNumberInfo releaseNumber="IC-20273"/>
        <releaseNumberInfo releaseNumber="IC-29967"/>
        <releaseNumberInfo releaseNumber="IC-21413"/>
      </releaseNumbers>
      <isUnderwriterHiredOrTerminated>N</isUnderwriterHiredOrTerminated>
      <publicAccountants>
        <publicAccountant>
          <publicAccountantName>PricewaterhouseCoopers LLP</publicAccountantName>
          <pcaobNumber>238</pcaobNumber>
          <publicAccountantLei>5493002GVO7EO8RNNS37</publicAccountantLei>
          <publicAccountantStateCountry publicAccountantCountry="US" publicAccountantState="US-NY"/>
        </publicAccountant>
      </publicAccountants>
      <isPublicAccountantChanged>N</isPublicAccountantChanged>
      <isMaterialWeakness>N</isMaterialWeakness>
      <isOpinionOffered>N</isOpinionOffered>
      <isMaterialChange>N</isMaterialChange>
      <isAccountingPrincipleChange>N</isAccountingPrincipleChange>
      <isPaymentErrorInNetAssetValue>N</isPaymentErrorInNetAssetValue>
      <paymentDividendSeries isPaymentDividend="Y">
        <seriesInfo seriesName="Focused Appreciation Portfolio" seriesId="S000000055"/>
        <seriesInfo seriesName="Large Company Value Portfolio" seriesId="S000018227"/>
        <seriesInfo seriesName="Large Cap Core Stock Portfolio" seriesId="S000000040"/>
        <seriesInfo seriesName="Index 400 Stock Portfolio" seriesId="S000000054"/>
        <seriesInfo seriesName="Domestic Equity Portfolio" seriesId="S000000041"/>
        <seriesInfo seriesName="Small Cap Value Portfolio" seriesId="S000000049"/>
        <seriesInfo seriesName="Balanced Portfolio" seriesId="S000000045"/>
        <seriesInfo seriesName="Growth Stock Portfolio" seriesId="S000000056"/>
        <seriesInfo seriesName="Small Cap Growth Stock Portfolio" seriesId="S000000039"/>
        <seriesInfo seriesName="Asset Allocation Portfolio" seriesId="S000000044"/>
        <seriesInfo seriesName="Index 500 Stock Portfolio" seriesId="S000000043"/>
        <seriesInfo seriesName="International Equity Portfolio" seriesId="S000000052"/>
        <seriesInfo seriesName="Mid Cap Growth Stock Portfolio" seriesId="S000000050"/>
        <seriesInfo seriesName="Mid Cap Value Portfolio" seriesId="S000000053"/>
        <seriesInfo seriesName="International Growth Portfolio" seriesId="S000000051"/>
        <seriesInfo seriesName="Large Cap Blend Portfolio" seriesId="S000018229"/>
        <seriesInfo seriesName="Government Money Market Portfolio" seriesId="S000000048"/>
        <seriesInfo seriesName="Research International Core Portfolio" seriesId="S000018230"/>
        <seriesInfo seriesName="Equity Income Portfolio" seriesId="S000000042"/>
        <seriesInfo seriesName="Index 600 Stock Portfolio" seriesId="S000018231"/>
      </paymentDividendSeries>
    </registrantInfo>
    <managementInvestmentQuestionSeriesInfo>
      <managementInvestmentQuestion>
        <mgmtInvFundName>High Yield Bond Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000046</mgmtInvSeriesId>
        <mgmtInvLei>KUVC5M5XHVXDKYES4T32</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="High Yield Bond Portfolio" sharesOutstandingClassId="C000000081" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Federated Investment Management Company</subAdviserName>
            <subAdviserFileNo>801-34612</subAdviserFileNo>
            <subAdviserCrdNo>000105138</subAdviserCrdNo>
            <subAdviserLei>549300SP92SGS5AXSV67</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-PA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>Clearstream Banking S.A.</custodianName>
            <custodianLei>549300OL514RA0SXJJ44</custodianLei>
            <custodianCountry>LU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2096.08</grossCommission>
          </broker>
          <broker>
            <brokerName>Instinet, LLC</brokerName>
            <brokerFileNo>8-23669</brokerFileNo>
            <brokerCrdNo>000007897</brokerCrdNo>
            <brokerLei>549300MGMN3RKMU8FT57</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>67.55</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>2163.63</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>16364161.13</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>36894690.5</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>48310043.48</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>12774957.5</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>38556419.84</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>28025712.93</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>37603394.5</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>21501321.75</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>349065179.25</principalTotalPurchaseSale>
          </principalTransaction>
          <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>50149316</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>703823410.11</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>820758481.33</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Large Cap Blend Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018229</mgmtInvSeriesId>
        <mgmtInvLei>549300J8IDGQV6XROU84</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Large Cap Blend Portfolio" sharesOutstandingClassId="C000050277" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Fiduciary Management, Inc.</subAdviserName>
            <subAdviserFileNo>801-15164</subAdviserFileNo>
            <subAdviserCrdNo>000109149</subAdviserCrdNo>
            <subAdviserLei>5493001HF4AF6ZIMER93</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-WI" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Ferretti Group, Inc.</brokerName>
            <brokerFileNo>8-51895</brokerFileNo>
            <brokerCrdNo>000047768</brokerCrdNo>
            <brokerLei>254900CIWUSRGAPET478</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4044.3</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1410.75</grossCommission>
          </broker>
          <broker>
            <brokerName>ConvergEx Prime Services LLC</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000140185</brokerCrdNo>
            <brokerLei>00000000000000000000</brokerLei>
            <brokerStateCountry brokerState="US-GA" brokerCountry="US"/>
            <grossCommission>11551.45</grossCommission>
          </broker>
          <broker>
            <brokerName>Maxim Group LLC</brokerName>
            <brokerFileNo>8-65337</brokerFileNo>
            <brokerCrdNo>000120708</brokerCrdNo>
            <brokerLei>254900OJ6JZO6SDMHQ83</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3358.9</grossCommission>
          </broker>
          <broker>
            <brokerName>JonesTrading Institutional Services LLC</brokerName>
            <brokerFileNo>8-26089</brokerFileNo>
            <brokerCrdNo>000006888</brokerCrdNo>
            <brokerLei>2138008JJ5PA8H5UIL69</brokerLei>
            <brokerStateCountry brokerState="US-CA" brokerCountry="US"/>
            <grossCommission>2626.6</grossCommission>
          </broker>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3354.25</grossCommission>
          </broker>
          <broker>
            <brokerName>Redburn LLP</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>00000000000000000000</brokerLei>
            <brokerCountry>GB</brokerCountry>
            <grossCommission>1715.2</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3124</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1426.65</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3407.73</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>46519.27</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>71588104.18</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>71588104.18</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>167970998.94</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Short-Term Bond Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018233</mgmtInvSeriesId>
        <mgmtInvLei>BEEDB5U9NNUVQYFFEL15</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Short-Term Bond Portfolio" sharesOutstandingClassId="C000050281" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>T. Rowe Price Associates, Inc.</subAdviserName>
            <subAdviserFileNo>801-856</subAdviserFileNo>
            <subAdviserCrdNo>000105496</subAdviserCrdNo>
            <subAdviserLei>7HTL8AEQSEDX602FBU63</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MD" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>IHS Markit Ltd.</pricingServiceName>
            <pricingServiceLei>549300HLPTRASHS0E726</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>JPMorgan Chase &amp; Co.</pricingServiceName>
            <pricingServiceLei>8I5DZWZKVSZI1NUHU748</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Sao Paulo, Sao Paulo, BR, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>BR</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 (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>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Banco Nacional de Mexico, S.A., Integrante del Grupo Financiero Banamex</custodianName>
            <custodianLei>2SFFM4FUIE05S37WFU55</custodianLei>
            <custodianCountry>MX</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</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>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
            <principalCrdNo>000002525</principalCrdNo>
            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>20240480.11</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>18174738.6</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>29539668.07</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>24360310.41</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>19723419.54</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>34423860.83</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>22007629.39</principalTotalPurchaseSale>
          </principalTransaction>
          <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>35939782.59</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>45620005.15</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>218432914.51</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>592720956.58</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>322859185.33</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Multi-Sector Bond Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018235</mgmtInvSeriesId>
        <mgmtInvLei>P0C14V6IL3O47L1ZG636</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Multi-Sector Bond Portfolio" sharesOutstandingClassId="C000050283" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Pacific Investment Management Company LLC</subAdviserName>
            <subAdviserFileNo>801-48187</subAdviserFileNo>
            <subAdviserCrdNo>000104559</subAdviserCrdNo>
            <subAdviserLei>549300KGPYQZXGMYYN38</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-CA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>IHS Markit Ltd.</pricingServiceName>
            <pricingServiceLei>549300HLPTRASHS0E726</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>JPMorgan Chase &amp; Co.</pricingServiceName>
            <pricingServiceLei>8I5DZWZKVSZI1NUHU748</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Bank Handlowy w Warszawie Spolka Akcyjna</custodianName>
            <custodianLei>XLEZHWWOI4HFQDGL4793</custodianLei>
            <custodianCountry>PL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Thai) Public Company Limited</custodianName>
            <custodianLei>549300O1LQYCQ7G1IM57</custodianLei>
            <custodianCountry>TH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Banco Nacional de Mexico, S.A., Integrante del Grupo Financiero Banamex</custodianName>
            <custodianLei>2SFFM4FUIE05S37WFU55</custodianLei>
            <custodianCountry>MX</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Ciudad Autonoma de Buenos Aires, Ciudad Autonoma de Buenos Aires, AR, Branch)</custodianName>
            <custodianLei>579100KKDGKCFFKKF005</custodianLei>
            <custodianCountry>AR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Mizuho Bank, Ltd. (Minato ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>RB0PEZSDGCO3JS6CEU02</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Cititrust Colombia S A Sociedad Fiduciaria</custodianName>
            <custodianLei>549300242J3IJCOSGI49</custodianLei>
            <custodianCountry>CO</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Taiwan) Limited</custodianName>
            <custodianLei>549300QJEO1B92LSHZ06</custodianLei>
            <custodianCountry>TW</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jongno-gu, Seoul, KR, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>KR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank (Malaysia) Berhad</custodianName>
            <custodianLei>529900DLWFR8HK7DR278</custodianLei>
            <custodianCountry>MY</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>FirstRand Bank Limited</custodianName>
            <custodianLei>ZAYQDKTCATIXF9OQY690</custodianLei>
            <custodianCountry>ZA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Makati City, Metro Manila, PH, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>PH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Mumbai, Maharashtra, IN, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>IN</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Sao Paulo, Sao Paulo, BR, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>BR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</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 (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>
          <custodian>
            <custodianName>Citibank Europe Public Limited Company (Bucharest, Bucharest, RO, Branch)</custodianName>
            <custodianLei>N1FBEDJ5J41VKZLO2475</custodianLei>
            <custodianCountry>RO</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Anonim Sirketi</custodianName>
            <custodianLei>789000N5SE3LWDK7OI11</custodianLei>
            <custodianCountry>TR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1181714620.46</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>2345306388.46</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>12493962623.27</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>86055734.29</principalTotalPurchaseSale>
          </principalTransaction>
          <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>8156410440.51</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
            <principalCrdNo>000002525</principalCrdNo>
            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2365118753.89</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>482843596.59</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>266161733.75</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>1050780764.67</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>6320999886.73</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>35044590235.25</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>957903807.69</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Index 400 Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000054</mgmtInvSeriesId>
        <mgmtInvLei>11EBFDHR7ZLPMGNIIF96</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Index 400 Stock Portfolio" sharesOutstandingClassId="C000000089" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.06</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.32</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.02</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.02</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5088.4</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6688.14</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>15315.14</grossCommission>
          </broker>
          <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>1503.16</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>28594.84</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>39407229.57</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>SunTrust Robinson Humphrey, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>14162478.34</principalTotalPurchaseSale>
          </principalTransaction>
          <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>174369695.34</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>129923150.94</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>39671339</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>75484332.62</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>21478110.06</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>60308806.01</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>404604023.18</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>44245008.58</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1008136716.56</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>916761046.39</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Equity Income Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000042</mgmtInvSeriesId>
        <mgmtInvLei>549300X5C6L2WKRYCD90</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Equity Income Portfolio" sharesOutstandingClassId="C000000077" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>T. Rowe Price Associates, Inc.</subAdviserName>
            <subAdviserFileNo>801-856</subAdviserFileNo>
            <subAdviserCrdNo>000105496</subAdviserCrdNo>
            <subAdviserLei>7HTL8AEQSEDX602FBU63</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MD" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (London, GB, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>GB</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Intesa Sanpaolo SpA</custodianName>
            <custodianLei>2W8N8UU78PMDQKZENC08</custodianLei>
            <custodianCountry>IT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Saudi British Bank</custodianName>
            <custodianLei>558600TQS0WENZUC5190</custodianLei>
            <custodianCountry>SA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</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 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>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6045.1</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3336.26</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5220.32</grossCommission>
          </broker>
          <broker>
            <brokerName>BMO Capital Markets Corp.</brokerName>
            <brokerFileNo>8-34344</brokerFileNo>
            <brokerCrdNo>000016686</brokerCrdNo>
            <brokerLei>RUC0QBLBRPRCU4W1NE59</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4404.69</grossCommission>
          </broker>
          <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>8680.92</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6992.36</grossCommission>
          </broker>
          <broker>
            <brokerName>Evercore Group L.L.C.</brokerName>
            <brokerFileNo>8-49830</brokerFileNo>
            <brokerCrdNo>000042405</brokerCrdNo>
            <brokerLei>5493008F0LRLS5N8LZ81</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4058.16</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10395.06</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6341.16</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>4492.73</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>88428.78</aggregateCommission>
        <principalTransactions>
          <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>890065.85</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Penserra Securities LLC</principalName>
            <principalFileNo>8-67773</principalFileNo>
            <principalCrdNo>000145994</principalCrdNo>
            <principalLei>549300WY8ZBI168Y6Z05</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>920571.25</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>1278325</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Global Markets, LLC</principalName>
            <principalFileNo>8-69862</principalFileNo>
            <principalCrdNo>000285852</principalCrdNo>
            <principalLei>549300FDEDF5ORXCMQ56</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>594668.77</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>1879594.71</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>128372839.76</principalTotalPurchaseSale>
          </principalTransaction>
          <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>2016508.5</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>949976.97</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>UBS Securities LLC</principalName>
            <principalFileNo>8-22651</principalFileNo>
            <principalCrdNo>000007654</principalCrdNo>
            <principalLei>T6FIZBDPKLYJKFCRVK44</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1810902.5</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>2922049.89</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>144341695.62</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>771341948.15</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Small Cap Growth Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000039</mgmtInvSeriesId>
        <mgmtInvLei>YTR2S467AP5XPLF6CQ13</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Small Cap Growth Stock Portfolio" sharesOutstandingClassId="C000000074" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Wellington Management Company LLP</subAdviserName>
            <subAdviserFileNo>801-15908</subAdviserFileNo>
            <subAdviserCrdNo>000106595</subAdviserCrdNo>
            <subAdviserLei>549300YHP12TEZNLCX41</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>16422.61</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>19043.62</grossCommission>
          </broker>
          <broker>
            <brokerName>BTIG, LLC</brokerName>
            <brokerFileNo>8-65473</brokerFileNo>
            <brokerCrdNo>000122225</brokerCrdNo>
            <brokerLei>549300GTG9PL6WO3EC51</brokerLei>
            <brokerStateCountry brokerState="US-CA" brokerCountry="US"/>
            <grossCommission>25965.82</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>30057.48</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>14608.72</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>17603.7</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>35953.68</grossCommission>
          </broker>
          <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>12220.63</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>14179.24</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>23455.35</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>319656.06</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>UBS Securities LLC</principalName>
            <principalFileNo>8-22651</principalFileNo>
            <principalCrdNo>000007654</principalCrdNo>
            <principalLei>T6FIZBDPKLYJKFCRVK44</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>52000</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>3638709.52</principalTotalPurchaseSale>
          </principalTransaction>
          <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>4543278</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>896700</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>181044.05</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>2366110</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>4035950</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>237639738.41</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>1239014</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>148785</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>268394869.98</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>609385309.42</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Index 500 Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000043</mgmtInvSeriesId>
        <mgmtInvLei>JQ44ZQUCMUGK6WUCGP28</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Index 500 Stock Portfolio" sharesOutstandingClassId="C000000078" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.11</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.31</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.02</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.02</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Instinet, LLC</brokerName>
            <brokerFileNo>8-23669</brokerFileNo>
            <brokerCrdNo>000007897</brokerCrdNo>
            <brokerLei>549300MGMN3RKMU8FT57</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>129.4</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>9146.4</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5769.7</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1462.52</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6095.44</grossCommission>
          </broker>
          <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>10969.92</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>33573.38</aggregateCommission>
        <principalTransactions>
          <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>44118901.31</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>44722606.44</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>44035243.97</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>79629146.74</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>SunTrust Robinson Humphrey, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>23547945.9</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>459990969.2</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>54898720.79</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>195366789.02</principalTotalPurchaseSale>
          </principalTransaction>
          <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>146170171.02</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>33555539.39</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1132276829.5</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>3484565176.61</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Asset Allocation Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000044</mgmtInvSeriesId>
        <mgmtInvLei>5DD2LVSRPBY8KFA02K39</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Asset Allocation Portfolio" sharesOutstandingClassId="C000000079" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Fund of Funds</fundType>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>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>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>836</grossCommission>
          </broker>
          <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>1610.5</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1698</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1292</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1460</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1364.7</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1610</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>9871.2</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>16989655.92</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>22276361.49</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>6389518.47</principalTotalPurchaseSale>
          </principalTransaction>
          <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>54953035.47</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>21557493.06</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>SunTrust Robinson Humphrey, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>3487121.11</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>64848786.81</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>498542.78</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>252300401.91</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>29774087.09</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>473075004.11</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>273450540.03</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Inflation Protection Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018228</mgmtInvSeriesId>
        <mgmtInvLei>7H3QOR3RFMEVIZ6XNZ82</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Inflation Protection Portfolio" sharesOutstandingClassId="C000050276" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>American Century Investment Management, Inc.</subAdviserName>
            <subAdviserFileNo>801-08174</subAdviserFileNo>
            <subAdviserCrdNo>000105778</subAdviserCrdNo>
            <subAdviserLei>EM2U0UPRO83F878KCP52</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MO" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>IHS Markit Ltd.</pricingServiceName>
            <pricingServiceLei>549300HLPTRASHS0E726</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>JPMorgan Chase &amp; Co.</pricingServiceName>
            <pricingServiceLei>8I5DZWZKVSZI1NUHU748</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (London, GB, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>GB</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 (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>
          <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>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 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>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>30987136.93</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>214261939.57</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>UBS Securities LLC</principalName>
            <principalFileNo>8-22651</principalFileNo>
            <principalCrdNo>000007654</principalCrdNo>
            <principalLei>T6FIZBDPKLYJKFCRVK44</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>16103381.47</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Natwest Markets Securities Inc.</principalName>
            <principalFileNo>8-37135</principalFileNo>
            <principalCrdNo>000011707</principalCrdNo>
            <principalLei>ZE2ZWJ5BTIQJ8M0C6K34</principalLei>
            <principalStateCountry principalState="US-CT" principalCountry="US"/>
            <principalTotalPurchaseSale>21698933.65</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>16415289.87</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>14947366.43</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>22510714.58</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>MUFG Securities Americas Inc.</principalName>
            <principalFileNo>8-43026</principalFileNo>
            <principalCrdNo>000019685</principalCrdNo>
            <principalLei>K5HU16E3LMSVCCJJJ255</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>10220577.53</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>27045401.24</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>86720720.09</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>510824736.89</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>367855430.85</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Research International Core Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018230</mgmtInvSeriesId>
        <mgmtInvLei>549300ZQ5NCCGE71IX14</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Research International Core Portfolio" sharesOutstandingClassId="C000050278" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Massachusetts Financial Services Company</subAdviserName>
            <subAdviserFileNo>801-17352</subAdviserFileNo>
            <subAdviserCrdNo>000110045</subAdviserCrdNo>
            <subAdviserLei>1G3OSH3GLGJ7X1JC5I61</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BNP Paribas Securities Services (Athens, Attica, GR, Branch)</custodianName>
            <custodianLei>549300WCGB70D06XZS54</custodianLei>
            <custodianCountry>GR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Mizuho Bank, Ltd. (Minato ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>RB0PEZSDGCO3JS6CEU02</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Thai) Public Company Limited</custodianName>
            <custodianLei>549300O1LQYCQ7G1IM57</custodianLei>
            <custodianCountry>TH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Ciudad Autonoma de Buenos Aires, Ciudad Autonoma de Buenos Aires, AR, Branch)</custodianName>
            <custodianLei>579100KKDGKCFFKKF005</custodianLei>
            <custodianCountry>AR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Anonim Sirketi</custodianName>
            <custodianLei>789000N5SE3LWDK7OI11</custodianLei>
            <custodianCountry>TR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Intesa Sanpaolo SpA</custodianName>
            <custodianLei>2W8N8UU78PMDQKZENC08</custodianLei>
            <custodianCountry>IT</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>FirstRand Bank Limited</custodianName>
            <custodianLei>ZAYQDKTCATIXF9OQY690</custodianLei>
            <custodianCountry>ZA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank Europe Public Limited Company (Budapest, HU, Branch)</custodianName>
            <custodianLei>N1FBEDJ5J41VKZLO2475</custodianLei>
            <custodianCountry>HU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Stanbic IBTC Bank PLC</custodianName>
            <custodianLei>549300NIVXF92ZIOVW61</custodianLei>
            <custodianCountry>NG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</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>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</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 (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>
          <custodian>
            <custodianName>Deutsche Bank (Malaysia) Berhad</custodianName>
            <custodianLei>529900DLWFR8HK7DR278</custodianLei>
            <custodianCountry>MY</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank del Peru S.A.</custodianName>
            <custodianLei>MYTK5NHHP1G8TVFGT193</custodianLei>
            <custodianCountry>PE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Handlowy w Warszawie Spolka Akcyjna</custodianName>
            <custodianLei>XLEZHWWOI4HFQDGL4793</custodianLei>
            <custodianCountry>PL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Ceskoslovenska obchodni banka, a. s.</custodianName>
            <custodianLei>Q5BP2UEQ48R75BOTCB92</custodianLei>
            <custodianCountry>CZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jakarta, Jakarta, ID, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ID</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Mumbai, Maharashtra, IN, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>IN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Taiwan) Limited</custodianName>
            <custodianLei>549300QJEO1B92LSHZ06</custodianLei>
            <custodianCountry>TW</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Joint Stock Company Commercial Bank Citibank</custodianName>
            <custodianLei>CHSQDSVI1UI96Y2SW097</custodianLei>
            <custodianCountry>RU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Sao Paulo, Sao Paulo, BR, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>BR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jongno-gu, Seoul, KR, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>KR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>HSBC Bank (China) Company Limited</custodianName>
            <custodianLei>2CZOJRADNJXBLT55G526</custodianLei>
            <custodianCountry>CN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank Maghreb S.A</custodianName>
            <custodianLei>5493003FVWLMBFTISI11</custodianLei>
            <custodianCountry>MA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Makati City, Metro Manila, PH, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>PH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Saudi British Bank</custodianName>
            <custodianLei>558600TQS0WENZUC5190</custodianLei>
            <custodianCountry>SA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <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>Banco Nacional de Mexico, S.A., Integrante del Grupo Financiero Banamex</custodianName>
            <custodianLei>2SFFM4FUIE05S37WFU55</custodianLei>
            <custodianCountry>MX</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3588.2</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4795.83</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3484.9</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4523.68</grossCommission>
          </broker>
          <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>14637.45</grossCommission>
          </broker>
          <broker>
            <brokerName>BNP Paribas Securities Corp.</brokerName>
            <brokerFileNo>8-32682</brokerFileNo>
            <brokerCrdNo>000015794</brokerCrdNo>
            <brokerLei>RCNB6OTYUAMMP879YW96</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3796.1</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>13031.77</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>15174.27</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10587.6</grossCommission>
          </broker>
          <broker>
            <brokerName>Macquarie Capital (USA) Inc.</brokerName>
            <brokerFileNo>8-47198</brokerFileNo>
            <brokerCrdNo>000036368</brokerCrdNo>
            <brokerLei>549300670K07JRB5UQ40</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3906.83</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>100515.06</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>UBS Securities LLC</principalName>
            <principalFileNo>8-22651</principalFileNo>
            <principalCrdNo>000007654</principalCrdNo>
            <principalLei>T6FIZBDPKLYJKFCRVK44</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>63806974.03</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>272153983.83</principalTotalPurchaseSale>
          </principalTransaction>
          <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>7142198.13</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
            <principalFileNo>8-15255</principalFileNo>
            <principalCrdNo>000004297</principalCrdNo>
            <principalLei>OXTKY6Q8X53C9ILVV871</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>53896702.74</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>398788565.91</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>691869793.61</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Focused Appreciation Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000055</mgmtInvSeriesId>
        <mgmtInvLei>5493007QO6Z6UMWHLZ04</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Focused Appreciation Portfolio" sharesOutstandingClassId="C000000090" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Loomis, Sayles &amp; Company, L.P.</subAdviserName>
            <subAdviserFileNo>801-170</subAdviserFileNo>
            <subAdviserCrdNo>000105377</subAdviserCrdNo>
            <subAdviserLei>JIZPN2RX3UMNOYIDI313</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8159.87</grossCommission>
          </broker>
          <broker>
            <brokerName>Virtu Americas LLC</brokerName>
            <brokerFileNo>8-68193</brokerFileNo>
            <brokerCrdNo>000149823</brokerCrdNo>
            <brokerLei>549300RA02N3BNSWBV74</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3692.43</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2221.08</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3965.87</grossCommission>
          </broker>
          <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>21729.15</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>1540.99</grossCommission>
          </broker>
          <broker>
            <brokerName>Macquarie Capital (USA) Inc.</brokerName>
            <brokerFileNo>8-47198</brokerFileNo>
            <brokerCrdNo>000036368</brokerCrdNo>
            <brokerLei>549300670K07JRB5UQ40</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1373.35</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>37028.95</grossCommission>
          </broker>
          <broker>
            <brokerName>Keefe, Bruyette &amp; Woods, Inc.</brokerName>
            <brokerFileNo>008-10888</brokerFileNo>
            <brokerCrdNo>000000481</brokerCrdNo>
            <brokerLei>549300OM47DQV01G4854</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1396.36</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>1749.69</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>84732.55</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>200039080.16</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>200039080.16</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>953492770.65</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>International Growth Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000051</mgmtInvSeriesId>
        <mgmtInvLei>A7EFFZCFPQNSS1P3HZ68</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="International Growth Portfolio" sharesOutstandingClassId="C000000086" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>FIAM LLC</subAdviserName>
            <subAdviserFileNo>801-63658</subAdviserFileNo>
            <subAdviserCrdNo>000133196</subAdviserCrdNo>
            <subAdviserLei>5493004TXEKSUW10AL66</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Itau CorpBanca</custodianName>
            <custodianLei>549300DDPTTIZ06NIV06</custodianLei>
            <custodianCountry>CL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Mizuho Bank, Ltd. (Minato ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>RB0PEZSDGCO3JS6CEU02</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank del Peru S.A.</custodianName>
            <custodianLei>MYTK5NHHP1G8TVFGT193</custodianLei>
            <custodianCountry>PE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Intesa Sanpaolo SpA</custodianName>
            <custodianLei>2W8N8UU78PMDQKZENC08</custodianLei>
            <custodianCountry>IT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>FirstRand Bank Limited</custodianName>
            <custodianLei>ZAYQDKTCATIXF9OQY690</custodianLei>
            <custodianCountry>ZA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>BNP Paribas Securities Services (Athens, Attica, GR, Branch)</custodianName>
            <custodianLei>549300WCGB70D06XZS54</custodianLei>
            <custodianCountry>GR</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 (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>
          <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>Deutsche Bank Anonim Sirketi</custodianName>
            <custodianLei>789000N5SE3LWDK7OI11</custodianLei>
            <custodianCountry>TR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank Kenya Limited</custodianName>
            <custodianLei>549300RBHWW5EJIRG629</custodianLei>
            <custodianCountry>KE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Handlowy w Warszawie Spolka Akcyjna</custodianName>
            <custodianLei>XLEZHWWOI4HFQDGL4793</custodianLei>
            <custodianCountry>PL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Sao Paulo, Sao Paulo, BR, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>BR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Thai) Public Company Limited</custodianName>
            <custodianLei>549300O1LQYCQ7G1IM57</custodianLei>
            <custodianCountry>TH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Saudi British Bank</custodianName>
            <custodianLei>558600TQS0WENZUC5190</custodianLei>
            <custodianCountry>SA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>UniCredit Banka Slovenija d.d.</custodianName>
            <custodianLei>549300O2UN9JLME31F08</custodianLei>
            <custodianCountry>SI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>AS SEB Pank</custodianName>
            <custodianLei>549300ND1MQ8SNNYMJ22</custodianLei>
            <custodianCountry>EE</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>Deutsche Bank Aktiengesellschaft (Mumbai, Maharashtra, IN, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>IN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank Europe Public Limited Company (Budapest, HU, Branch)</custodianName>
            <custodianLei>N1FBEDJ5J41VKZLO2475</custodianLei>
            <custodianCountry>HU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Joint Stock Company Commercial Bank Citibank</custodianName>
            <custodianLei>CHSQDSVI1UI96Y2SW097</custodianLei>
            <custodianCountry>RU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Privredna Banka Zagreb - Dionicko Drustvo</custodianName>
            <custodianLei>549300ZHFZ4CSK7VS460</custodianLei>
            <custodianCountry>HR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited (Colombo, Western, LK, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>LK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Ciudad Autonoma de Buenos Aires, Ciudad Autonoma de Buenos Aires, AR, Branch)</custodianName>
            <custodianLei>579100KKDGKCFFKKF005</custodianLei>
            <custodianCountry>AR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Stanbic IBTC Bank PLC</custodianName>
            <custodianLei>549300NIVXF92ZIOVW61</custodianLei>
            <custodianCountry>NG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Landsbankinn hf.</custodianName>
            <custodianLei>549300TLZPT6JELDWM92</custodianLei>
            <custodianCountry>IS</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Ceskoslovenska obchodni banka, a. s.</custodianName>
            <custodianLei>Q5BP2UEQ48R75BOTCB92</custodianLei>
            <custodianCountry>CZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank (Malaysia) Berhad</custodianName>
            <custodianLei>529900DLWFR8HK7DR278</custodianLei>
            <custodianCountry>MY</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Cititrust Colombia S A Sociedad Fiduciaria</custodianName>
            <custodianLei>549300242J3IJCOSGI49</custodianLei>
            <custodianCountry>CO</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>HSBC Bank (China) Company Limited</custodianName>
            <custodianLei>2CZOJRADNJXBLT55G526</custodianLei>
            <custodianCountry>CN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Taiwan) Limited</custodianName>
            <custodianLei>549300QJEO1B92LSHZ06</custodianLei>
            <custodianCountry>TW</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Cairo, Cairo, EG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>EG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jongno-gu, Seoul, KR, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>KR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Banco Nacional de Mexico, S.A., Integrante del Grupo Financiero Banamex</custodianName>
            <custodianLei>2SFFM4FUIE05S37WFU55</custodianLei>
            <custodianCountry>MX</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</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>23265.71</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>35589.86</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>14697.12</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>40533.82</grossCommission>
          </broker>
          <broker>
            <brokerName>Deutsche Bank Securities Inc.</brokerName>
            <brokerFileNo>8-17822</brokerFileNo>
            <brokerCrdNo>000002525</brokerCrdNo>
            <brokerLei>9J6MBOOO7BECTDTUZW19</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8648.73</grossCommission>
          </broker>
          <broker>
            <brokerName>Virtu Itg LLC</brokerName>
            <brokerFileNo>8-44218</brokerFileNo>
            <brokerCrdNo>000029299</brokerCrdNo>
            <brokerLei>549300S41SMIODVIT266</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>22696.66</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>13586.87</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>14061.17</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>17399.76</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>18553.03</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>255178.02</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>UBS Securities LLC</principalName>
            <principalFileNo>8-22651</principalFileNo>
            <principalCrdNo>000007654</principalCrdNo>
            <principalLei>T6FIZBDPKLYJKFCRVK44</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>32000</principalTotalPurchaseSale>
          </principalTransaction>
          <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>900633.58</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>291612.91</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>6950400.58</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>295200</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>209039892.76</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Skandinaviska Enskilda Banken AB</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>F3JS33DEI6XQ4ZBPTN86</principalLei>
            <principalCountry>SE</principalCountry>
            <principalTotalPurchaseSale>332050.37</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>1917492.18</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>23100.54</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Canada Northern Trust Corporation</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>00000000000000000000</principalLei>
            <principalCountry>CA</principalCountry>
            <principalTotalPurchaseSale>42058.76</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>219829699.02</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>728072445.59</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Large Cap Core Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000040</mgmtInvSeriesId>
        <mgmtInvLei>VR6JA5TLPSU3FJG4YL55</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Large Cap Core Stock Portfolio" sharesOutstandingClassId="C000000075" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Wellington Management Company LLP</subAdviserName>
            <subAdviserFileNo>801-15908</subAdviserFileNo>
            <subAdviserCrdNo>000106595</subAdviserCrdNo>
            <subAdviserLei>549300YHP12TEZNLCX41</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>16797.37</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>22011.99</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>19459.73</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>9875.72</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8001.27</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>26151.15</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>11081.48</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7398.89</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10740.55</grossCommission>
          </broker>
          <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>14879.9</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>199536.72</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>158381462.97</principalTotalPurchaseSale>
          </principalTransaction>
          <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>867027</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>8087469.9</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>166400</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>1328300</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>168830659.87</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>588349490.62</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Mid Cap Growth Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000050</mgmtInvSeriesId>
        <mgmtInvLei>LIP0ME8UWTR611J45283</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Mid Cap Growth Stock Portfolio" sharesOutstandingClassId="C000000085" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Wellington Management Company LLP</subAdviserName>
            <subAdviserFileNo>801-15908</subAdviserFileNo>
            <subAdviserCrdNo>000106595</subAdviserCrdNo>
            <subAdviserLei>549300YHP12TEZNLCX41</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Raymond James &amp; Associates, Inc.</brokerName>
            <brokerFileNo>8-10999</brokerFileNo>
            <brokerCrdNo>000000705</brokerCrdNo>
            <brokerLei>U4ONQX15J3RO8XCKE979</brokerLei>
            <brokerStateCountry brokerState="US-FL" brokerCountry="US"/>
            <grossCommission>10096.82</grossCommission>
          </broker>
          <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>14373.29</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>12884.26</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>16651.37</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>13246.02</grossCommission>
          </broker>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>9451.56</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10925.68</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>15824.21</grossCommission>
          </broker>
          <broker>
            <brokerName>Robert W. Baird &amp; Co. Incorporated</brokerName>
            <brokerFileNo>8-497</brokerFileNo>
            <brokerCrdNo>000008158</brokerCrdNo>
            <brokerLei>549300772UJAHRD6LO53</brokerLei>
            <brokerStateCountry brokerState="US-WI" brokerCountry="US"/>
            <grossCommission>14740.66</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>14918.88</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>237891.38</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1005718.5</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>1381766.22</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>158231837.37</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>1116300</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1159350</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>162894972.09</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1096777101.36</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Emerging Markets Equity Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018232</mgmtInvSeriesId>
        <mgmtInvLei>549300B2SFS01R9MCJ10</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Emerging Markets Equity Portfolio" sharesOutstandingClassId="C000050280" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Aberdeen Asset Managers Limited</subAdviserName>
            <subAdviserFileNo>801-75074</subAdviserFileNo>
            <subAdviserCrdNo>000162309</subAdviserCrdNo>
            <subAdviserLei>549300EI2QZDOKF0UR93</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserCountry>GB</subAdviserCountry>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>FirstRand Bank Limited</custodianName>
            <custodianLei>ZAYQDKTCATIXF9OQY690</custodianLei>
            <custodianCountry>ZA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jongno-gu, Seoul, KR, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>KR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Sao Paulo, Sao Paulo, BR, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>BR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Anonim Sirketi</custodianName>
            <custodianLei>789000N5SE3LWDK7OI11</custodianLei>
            <custodianCountry>TR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>BNP Paribas Securities Services (Athens, Attica, GR, Branch)</custodianName>
            <custodianLei>549300WCGB70D06XZS54</custodianLei>
            <custodianCountry>GR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Ceskoslovenska obchodni banka, a. s.</custodianName>
            <custodianLei>Q5BP2UEQ48R75BOTCB92</custodianLei>
            <custodianCountry>CZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Stanbic IBTC Bank PLC</custodianName>
            <custodianLei>549300NIVXF92ZIOVW61</custodianLei>
            <custodianCountry>NG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Thai) Public Company Limited</custodianName>
            <custodianLei>549300O1LQYCQ7G1IM57</custodianLei>
            <custodianCountry>TH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited (Ebene, Plaines Wilhems, MU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>MU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Ciudad Autonoma de Buenos Aires, Ciudad Autonoma de Buenos Aires, AR, Branch)</custodianName>
            <custodianLei>579100KKDGKCFFKKF005</custodianLei>
            <custodianCountry>AR</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 (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>
          <custodian>
            <custodianName>Banco Nacional de Mexico, S.A., Integrante del Grupo Financiero Banamex</custodianName>
            <custodianLei>2SFFM4FUIE05S37WFU55</custodianLei>
            <custodianCountry>MX</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>AS SEB Pank</custodianName>
            <custodianLei>549300ND1MQ8SNNYMJ22</custodianLei>
            <custodianCountry>EE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank (Malaysia) Berhad</custodianName>
            <custodianLei>529900DLWFR8HK7DR278</custodianLei>
            <custodianCountry>MY</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jakarta, Jakarta, ID, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ID</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Handlowy w Warszawie Spolka Akcyjna</custodianName>
            <custodianLei>XLEZHWWOI4HFQDGL4793</custodianLei>
            <custodianCountry>PL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank Maghreb S.A</custodianName>
            <custodianLei>5493003FVWLMBFTISI11</custodianLei>
            <custodianCountry>MA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Taiwan) Limited</custodianName>
            <custodianLei>549300QJEO1B92LSHZ06</custodianLei>
            <custodianCountry>TW</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Mumbai, Maharashtra, IN, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>IN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</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>The Saudi British Bank</custodianName>
            <custodianLei>558600TQS0WENZUC5190</custodianLei>
            <custodianCountry>SA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Cititrust Colombia S A Sociedad Fiduciaria</custodianName>
            <custodianLei>549300242J3IJCOSGI49</custodianLei>
            <custodianCountry>CO</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>HSBC Bank (China) Company Limited</custodianName>
            <custodianLei>2CZOJRADNJXBLT55G526</custodianLei>
            <custodianCountry>CN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>Joint Stock Company Commercial Bank Citibank</custodianName>
            <custodianLei>CHSQDSVI1UI96Y2SW097</custodianLei>
            <custodianCountry>RU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Makati City, Metro Manila, PH, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>PH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Privredna Banka Zagreb - Dionicko Drustvo</custodianName>
            <custodianLei>549300ZHFZ4CSK7VS460</custodianLei>
            <custodianCountry>HR</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank del Peru S.A.</custodianName>
            <custodianLei>MYTK5NHHP1G8TVFGT193</custodianLei>
            <custodianCountry>PE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank Europe Public Limited Company (Budapest, HU, Branch)</custodianName>
            <custodianLei>N1FBEDJ5J41VKZLO2475</custodianLei>
            <custodianCountry>HU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Itau CorpBanca</custodianName>
            <custodianLei>549300DDPTTIZ06NIV06</custodianLei>
            <custodianCountry>CL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank Kenya Limited</custodianName>
            <custodianLei>549300RBHWW5EJIRG629</custodianLei>
            <custodianCountry>KE</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>28604.13</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>17772.39</grossCommission>
          </broker>
          <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>68101.46</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>23558.67</grossCommission>
          </broker>
          <broker>
            <brokerName>CLSA Americas, LLC</brokerName>
            <brokerFileNo>8-69166</brokerFileNo>
            <brokerCrdNo>000165533</brokerCrdNo>
            <brokerLei>213800M2DXATWY7JMS07</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>17960.98</grossCommission>
          </broker>
          <broker>
            <brokerName>China International Capital Corporation Limited</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>529900OS3SVVTT56QN67</brokerLei>
            <brokerCountry>CN</brokerCountry>
            <grossCommission>16738.33</grossCommission>
          </broker>
          <broker>
            <brokerName>Virtu Itg LLC</brokerName>
            <brokerFileNo>8-44218</brokerFileNo>
            <brokerCrdNo>000029299</brokerCrdNo>
            <brokerLei>549300S41SMIODVIT266</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>15816.99</grossCommission>
          </broker>
          <broker>
            <brokerName>Renaissance Capital Limited</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>213800RZ3GCUXMBGYN59</brokerLei>
            <brokerCountry>GB</brokerCountry>
            <grossCommission>14023.42</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>31423.21</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>18895.54</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>313797.46</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>241329098.25</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>241329098.25</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>751913490.48</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Index 600 Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018231</mgmtInvSeriesId>
        <mgmtInvLei>H4V7XOKHREX82GREV795</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Index 600 Stock Portfolio" sharesOutstandingClassId="C000050279" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.03</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.34</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.06</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.06</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2520</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8642.44</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7796.52</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8263.72</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8410.1</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>324.92</grossCommission>
          </broker>
          <broker>
            <brokerName>Instinet, LLC</brokerName>
            <brokerFileNo>8-23669</brokerFileNo>
            <brokerCrdNo>000007897</brokerCrdNo>
            <brokerLei>549300MGMN3RKMU8FT57</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>3101.12</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>39058.82</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>40482947.37</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>13191781.87</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>11587564.67</principalTotalPurchaseSale>
          </principalTransaction>
          <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>58562085.96</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>173395968.98</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>13061291.29</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>32436126.62</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>20564371.2</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>SunTrust Robinson Humphrey, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>7479462.78</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>17932145.11</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>391082823.91</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>261436209.34</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Government Money Market Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000048</mgmtInvSeriesId>
        <mgmtInvLei>549300XTQ77FEJGLVS15</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Government Money Market Portfolio" sharesOutstandingClassId="C000000083" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Money Market Fund</fundType>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>BlackRock Advisors, LLC</subAdviserName>
            <subAdviserFileNo>801-47710</subAdviserFileNo>
            <subAdviserCrdNo>000106614</subAdviserCrdNo>
            <subAdviserLei>5493001LN9MRM6A35J74</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-DE" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>MUFG Securities Americas Inc.</principalName>
            <principalFileNo>8-43026</principalFileNo>
            <principalCrdNo>000019685</principalCrdNo>
            <principalLei>K5HU16E3LMSVCCJJJ255</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2467000000</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>5168985029.22</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>2368333327.54</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Scotia Capital (USA) Inc.</principalName>
            <principalFileNo>8-3716</principalFileNo>
            <principalCrdNo>000002739</principalCrdNo>
            <principalLei>549300BLWPABP1VNME36</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4461685864.39</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>4765459521.64</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Agricole Securities (USA) Inc.</principalName>
            <principalFileNo>8-13753</principalFileNo>
            <principalCrdNo>000000190</principalCrdNo>
            <principalLei>549300WO2DKF0Q3YMV43</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2222000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Bank of Montreal</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>NQQ6HPCNCCU6TUTQYE16</principalLei>
            <principalCountry>CA</principalCountry>
            <principalTotalPurchaseSale>4681000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>TD Securities (USA) LLC</principalName>
            <principalFileNo>8-36747</principalFileNo>
            <principalCrdNo>000018476</principalCrdNo>
            <principalLei>SUVUFHICNZMP2WKHG940</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4601978425.6</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Mizuho Securities USA LLC</principalName>
            <principalFileNo>8-37710</principalFileNo>
            <principalCrdNo>000019647</principalCrdNo>
            <principalLei>7TK5RJIZDFROZCA6XF66</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3110082393.48</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Natixis North America LLC</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>0000000000</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4754000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>41627829845.51</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <dailyAvgNetAssets>437693817.82</dailyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Balanced Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000045</mgmtInvSeriesId>
        <mgmtInvLei>4F2ZSMZDZU02NP7J8L64</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Balanced Portfolio" sharesOutstandingClassId="C000000080" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Fund of Funds</fundType>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>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>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>11506</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10450</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5368</grossCommission>
          </broker>
          <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>13970</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10362</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>13850</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>12204</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>77710</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>1836018292.26</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>179956430.98</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>1456943239.63</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>269436941.16</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>121101558.92</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>291019567.55</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>132559059.74</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>49732239.28</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>SunTrust Robinson Humphrey, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>41868647.78</principalTotalPurchaseSale>
          </principalTransaction>
          <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>1334191145.2</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>5712827122.5</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>2197041176.09</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Select Bond Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000047</mgmtInvSeriesId>
        <mgmtInvLei>03DZ35VFRGD62UKLL347</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Select Bond Portfolio" sharesOutstandingClassId="C000000082" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 10f-3 (17 CFR 270.10f-3)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Wells Capital Management Incorporated</subAdviserName>
            <subAdviserFileNo>801-21122</subAdviserFileNo>
            <subAdviserCrdNo>000104973</subAdviserCrdNo>
            <subAdviserLei>549300B3H2IOO2L85I90</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-CA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>JPMorgan Chase &amp; Co.</pricingServiceName>
            <pricingServiceLei>8I5DZWZKVSZI1NUHU748</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>IHS Markit Ltd.</pricingServiceName>
            <pricingServiceLei>549300HLPTRASHS0E726</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <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>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>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0</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>3594790772.72</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Natwest Markets Securities Inc.</principalName>
            <principalFileNo>8-37135</principalFileNo>
            <principalCrdNo>000011707</principalCrdNo>
            <principalLei>ZE2ZWJ5BTIQJ8M0C6K34</principalLei>
            <principalStateCountry principalState="US-CT" principalCountry="US"/>
            <principalTotalPurchaseSale>1515824005.02</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>4404064612.37</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>3667237681.5</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>4107206921.1</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2144799428.28</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>4541558602.03</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>1964867590.42</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>3684098999.31</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Industrial and Commercial Bank of China Financial Services LLC</principalName>
            <principalFileNo>8-66471</principalFileNo>
            <principalCrdNo>000131487</principalCrdNo>
            <principalLei>5493003O0P1GJ0O8CI80</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2898321480.78</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>41797555836.71</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>3117106853.35</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Growth Stock Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000056</mgmtInvSeriesId>
        <mgmtInvLei>SZG5ML0R3BIC0KK1SI27</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Growth Stock Portfolio" sharesOutstandingClassId="C000000091" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>T. Rowe Price Associates, Inc.</subAdviserName>
            <subAdviserFileNo>801-856</subAdviserFileNo>
            <subAdviserCrdNo>000105496</subAdviserCrdNo>
            <subAdviserLei>7HTL8AEQSEDX602FBU63</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MD" subAdviserCountry="US"/>
            <subAdviserHired isSubAdviserHired="Y" subAdviserStartDate="2019-11-14"/>
          </subAdviser>
        </subAdvisers>
        <subAdvisersTerminated>
          <subAdviserTerminated>
            <subAdviserTerminatedName>Mellon Investments Corporation</subAdviserTerminatedName>
            <subAdviserTerminatedFileNo>801-19785</subAdviserTerminatedFileNo>
            <subAdviserTerminatedCrdNo>000105764</subAdviserTerminatedCrdNo>
            <subAdviserTerminatedLei>YP72O3NKHJPQEEM7IG98</subAdviserTerminatedLei>
            <subAdviserTerminatedStateCountry subAdviserTerminatedState="US-MA" subAdviserTerminatedCountry="US"/>
            <subAdviserTerminationDate>2019-11-13</subAdviserTerminationDate>
          </subAdviserTerminated>
        </subAdvisersTerminated>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <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>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</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>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jongno-gu, Seoul, KR, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>KR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Intesa Sanpaolo SpA</custodianName>
            <custodianLei>2W8N8UU78PMDQKZENC08</custodianLei>
            <custodianCountry>IT</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>12335.58</grossCommission>
          </broker>
          <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>126524.06</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>11628.5</grossCommission>
          </broker>
          <broker>
            <brokerName>STIFEL NICOLAUS &amp; CO INC.</brokerName>
            <brokerFileNo>8-1447</brokerFileNo>
            <brokerCrdNo>000000793</brokerCrdNo>
            <brokerLei>5WUVMA08EYG4KEUPW589</brokerLei>
            <brokerStateCountry brokerState="US-MO" brokerCountry="US"/>
            <grossCommission>9387.55</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>28239.53</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>11081</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>38095.43</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>34535.86</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6570.7</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>9463.18</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>328484.31</aggregateCommission>
        <principalTransactions>
          <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>1261747628.72</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>563643400.73</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1825391029.45</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1023728638.87</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Small Cap Value Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000049</mgmtInvSeriesId>
        <mgmtInvLei>5493006BEZYY47A02J59</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Small Cap Value Portfolio" sharesOutstandingClassId="C000000084" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>T. Rowe Price Associates, Inc.</subAdviserName>
            <subAdviserFileNo>801-856</subAdviserFileNo>
            <subAdviserCrdNo>000105496</subAdviserCrdNo>
            <subAdviserLei>7HTL8AEQSEDX602FBU63</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MD" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8263.16</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>8290.36</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>7313.18</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7953.88</grossCommission>
          </broker>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6707.14</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>13665.04</grossCommission>
          </broker>
          <broker>
            <brokerName>STIFEL NICOLAUS &amp; CO INC.</brokerName>
            <brokerFileNo>8-1447</brokerFileNo>
            <brokerCrdNo>000000793</brokerCrdNo>
            <brokerLei>5WUVMA08EYG4KEUPW589</brokerLei>
            <brokerStateCountry brokerState="US-MO" brokerCountry="US"/>
            <grossCommission>10647.5</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>11116.75</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7877.89</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>9418.85</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>180572.12</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>637748</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>1287244.5</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>KeyBanc Capital Markets Inc.</principalName>
            <principalFileNo>8-30177</principalFileNo>
            <principalCrdNo>000000566</principalCrdNo>
            <principalLei>2EQWV0180Z211YVAD813</principalLei>
            <principalStateCountry principalState="US-OH" principalCountry="US"/>
            <principalTotalPurchaseSale>1418802</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>152083688.38</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1472407.75</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Stephens Inc.</principalName>
            <principalFileNo>8-1927</principalFileNo>
            <principalCrdNo>000003496</principalCrdNo>
            <principalLei>213800LH6T9XDYZCA534</principalLei>
            <principalStateCountry principalState="US-AR" principalCountry="US"/>
            <principalTotalPurchaseSale>1230438</principalTotalPurchaseSale>
          </principalTransaction>
          <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>7314101.24</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>1486809</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>1862975.75</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>2045922.25</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>172604175.34</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>578709437.96</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Domestic Equity Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000041</mgmtInvSeriesId>
        <mgmtInvLei>5493004TKKI7X6F71K84</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Domestic Equity Portfolio" sharesOutstandingClassId="C000000076" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Macquarie Investment Management Business Trust</subAdviserName>
            <subAdviserFileNo>801-32108</subAdviserFileNo>
            <subAdviserCrdNo>000105390</subAdviserCrdNo>
            <subAdviserLei>VMQ5TW8ZKH9FK4NGPY42</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-PA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7643.25</grossCommission>
          </broker>
          <broker>
            <brokerName>Wall Street Access Corporation</brokerName>
            <brokerFileNo>8-25936</brokerFileNo>
            <brokerCrdNo>000010012</brokerCrdNo>
            <brokerLei>549300Z0MOT47D6OQV22</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2513.25</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>7368</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>19868.77</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4181.84</grossCommission>
          </broker>
          <broker>
            <brokerName>Wells Fargo Securities, LLC</brokerName>
            <brokerFileNo>8-65876</brokerFileNo>
            <brokerCrdNo>000126292</brokerCrdNo>
            <brokerLei>VYVVCKR63DVZZN70PB21</brokerLei>
            <brokerStateCountry brokerState="US-NC" brokerCountry="US"/>
            <grossCommission>5542.5</grossCommission>
          </broker>
          <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>2344.33</grossCommission>
          </broker>
          <broker>
            <brokerName>Liquidnet, Inc.</brokerName>
            <brokerFileNo>8-52461</brokerFileNo>
            <brokerCrdNo>000103987</brokerCrdNo>
            <brokerLei>213800HSKBBO1GCVRG79</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>21162.23</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>10748.27</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>14740.93</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>107585.27</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>108226892.78</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>108226892.78</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>852867337.38</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Mid Cap Value Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000053</mgmtInvSeriesId>
        <mgmtInvLei>8TRVIGMWHSWZVXP7PI34</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Mid Cap Value Portfolio" sharesOutstandingClassId="C000000088" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>American Century Investment Management, Inc.</subAdviserName>
            <subAdviserFileNo>801-08174</subAdviserFileNo>
            <subAdviserCrdNo>000105778</subAdviserCrdNo>
            <subAdviserLei>EM2U0UPRO83F878KCP52</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MO" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</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>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>BNP Paribas Securities Services (Athens, Attica, GR, Branch)</custodianName>
            <custodianLei>549300WCGB70D06XZS54</custodianLei>
            <custodianCountry>GR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>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>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4709.62</grossCommission>
          </broker>
          <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>12785.39</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>9097.25</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6920.62</grossCommission>
          </broker>
          <broker>
            <brokerName>BMO Capital Markets Corp.</brokerName>
            <brokerFileNo>8-34344</brokerFileNo>
            <brokerCrdNo>000016686</brokerCrdNo>
            <brokerLei>RUC0QBLBRPRCU4W1NE59</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5618.14</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>11330.5</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>16126.28</grossCommission>
          </broker>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>19425.25</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4282.09</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>15792.81</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>136102.52</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>1362710.5</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>113807309.17</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>117827166.17</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>540795921.47</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Large Company Value Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018227</mgmtInvSeriesId>
        <mgmtInvLei>6UWSQM9V60QIAUKWH425</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Large Company Value Portfolio" sharesOutstandingClassId="C000050275" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>American Century Investment Management, Inc.</subAdviserName>
            <subAdviserFileNo>801-08174</subAdviserFileNo>
            <subAdviserCrdNo>000105778</subAdviserCrdNo>
            <subAdviserLei>EM2U0UPRO83F878KCP52</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-MO" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <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>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</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>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</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 (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>
          <custodian>
            <custodianName>Bank Hapoalim B.M.</custodianName>
            <custodianLei>B6ARUI4946ST4S7WOU88</custodianLei>
            <custodianCountry>IL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2016.95</grossCommission>
          </broker>
          <broker>
            <brokerName>Barclays Capital Inc.</brokerName>
            <brokerFileNo>8-41342</brokerFileNo>
            <brokerCrdNo>000019714</brokerCrdNo>
            <brokerLei>AC28XWWI3WIBK2824319</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2907.7</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>6423.05</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5576.4</grossCommission>
          </broker>
          <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>5310.4</grossCommission>
          </broker>
          <broker>
            <brokerName>Jefferies LLC</brokerName>
            <brokerFileNo>8-15074</brokerFileNo>
            <brokerCrdNo>000002347</brokerCrdNo>
            <brokerLei>58PU97L1C0WSRCWADL48</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>4188.34</grossCommission>
          </broker>
          <broker>
            <brokerName>Sanford C. Bernstein &amp; Co., LLC</brokerName>
            <brokerFileNo>8-52942</brokerFileNo>
            <brokerCrdNo>000104474</brokerCrdNo>
            <brokerLei>549300I7JYZHT7D5CO04</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5349.27</grossCommission>
          </broker>
          <broker>
            <brokerName>UBS Securities LLC</brokerName>
            <brokerFileNo>8-22651</brokerFileNo>
            <brokerCrdNo>000007654</brokerCrdNo>
            <brokerLei>T6FIZBDPKLYJKFCRVK44</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>2936.55</grossCommission>
          </broker>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>5411.21</grossCommission>
          </broker>
          <broker>
            <brokerName>STIFEL NICOLAUS &amp; CO INC.</brokerName>
            <brokerFileNo>8-1447</brokerFileNo>
            <brokerCrdNo>000000793</brokerCrdNo>
            <brokerLei>5WUVMA08EYG4KEUPW589</brokerLei>
            <brokerStateCountry brokerState="US-MO" brokerCountry="US"/>
            <grossCommission>2058.93</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>52981.14</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>265159.5</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>66431219.01</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>67180527.26</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>193299447.26</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>International Equity Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000000052</mgmtInvSeriesId>
        <mgmtInvLei>5493009J2EF7GK480170</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="International Equity Portfolio" sharesOutstandingClassId="C000000087" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Templeton Investment Counsel, LLC</subAdviserName>
            <subAdviserFileNo>801-15125</subAdviserFileNo>
            <subAdviserCrdNo>000111370</subAdviserCrdNo>
            <subAdviserLei>D8ZZMLBMZO5UV5R9DG61</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-FL" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Virtu Financial LLC</pricingServiceName>
            <pricingServiceLei>Q1YYTO5MBHNGETR9DT80</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Citibank Europe Public Limited Company (Budapest, HU, Branch)</custodianName>
            <custodianLei>N1FBEDJ5J41VKZLO2475</custodianLei>
            <custodianCountry>HU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Vienna, Vienna, AT, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>AT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Helsinki, Uusimaa, FI, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>FI</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong And Shanghai Banking Corporation Limited</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Hong Kong) Limited</custodianName>
            <custodianLei>X5AV1MBDXGRPX5UGMX13</custodianLei>
            <custodianCountry>HK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Anonim Sirketi</custodianName>
            <custodianLei>789000N5SE3LWDK7OI11</custodianLei>
            <custodianCountry>TR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Thai) Public Company Limited</custodianName>
            <custodianLei>549300O1LQYCQ7G1IM57</custodianLei>
            <custodianCountry>TH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>Deutsche Bank Aktiengesellschaft (Amsterdam, Noord Holland, NL, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>NL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>BNP Paribas Securities Services (Athens, Attica, GR, Branch)</custodianName>
            <custodianLei>549300WCGB70D06XZS54</custodianLei>
            <custodianCountry>GR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>FirstRand Bank Limited</custodianName>
            <custodianLei>ZAYQDKTCATIXF9OQY690</custodianLei>
            <custodianCountry>ZA</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Mumbai, Maharashtra, IN, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>IN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Intesa Sanpaolo SpA</custodianName>
            <custodianLei>2W8N8UU78PMDQKZENC08</custodianLei>
            <custodianCountry>IT</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Bank Handlowy w Warszawie Spolka Akcyjna</custodianName>
            <custodianLei>XLEZHWWOI4HFQDGL4793</custodianLei>
            <custodianCountry>PL</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Madrid, Madrid, ES, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>ES</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>The Hongkong and Shanghai Banking Corporation Limited (Chuo ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>JP</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 (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>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken A/S</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>DK</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Auckland, Auckland, NZ, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>NZ</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Deutsche Bank Aktiengesellschaft (Jongno-gu, Seoul, KR, Branch)</custodianName>
            <custodianLei>7LTWFZYICNSX8D621K86</custodianLei>
            <custodianCountry>KR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>SE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Sao Paulo, Sao Paulo, BR, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>BR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</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>HSBC Bank (China) Company Limited</custodianName>
            <custodianLei>2CZOJRADNJXBLT55G526</custodianLei>
            <custodianCountry>CN</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Citibank, National Association (Singapore, SG, Branch)</custodianName>
            <custodianLei>E57ODZWZ7FF32TWEFA76</custodianLei>
            <custodianCountry>SG</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>The Hongkong and Shanghai Banking Corporation Limited (Sydney, NSW, AU, Branch)</custodianName>
            <custodianLei>2HI3YI5320L3RW6NJ957</custodianLei>
            <custodianCountry>AU</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Standard Chartered Bank (Taiwan) Limited</custodianName>
            <custodianLei>549300QJEO1B92LSHZ06</custodianLei>
            <custodianCountry>TW</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Credit Suisse (Schweiz) AG</custodianName>
            <custodianLei>549300CWR0W0BCS9Q144</custodianLei>
            <custodianCountry>CH</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Mizuho Bank, Ltd. (Minato ku, Tokyo, JP, Branch)</custodianName>
            <custodianLei>RB0PEZSDGCO3JS6CEU02</custodianLei>
            <custodianCountry>JP</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 International GmbH</custodianName>
            <custodianLei>ZMHGNT7ZPKZ3UFZ8EO46</custodianLei>
            <custodianCountry>DE</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>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <brokers>
          <broker>
            <brokerName>Citigroup Global Markets Inc.</brokerName>
            <brokerFileNo>8-8177</brokerFileNo>
            <brokerCrdNo>000007059</brokerCrdNo>
            <brokerLei>MBNUM2BPBDO7JBLYG310</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>68674.46</grossCommission>
          </broker>
          <broker>
            <brokerName>Virtu Itg LLC</brokerName>
            <brokerFileNo>8-44218</brokerFileNo>
            <brokerCrdNo>000029299</brokerCrdNo>
            <brokerLei>549300S41SMIODVIT266</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>85901.59</grossCommission>
          </broker>
          <broker>
            <brokerName>Morgan Stanley &amp; Co. LLC</brokerName>
            <brokerFileNo>8-15869</brokerFileNo>
            <brokerCrdNo>000008209</brokerCrdNo>
            <brokerLei>9R7GPTSO7KV3UQJZQ078</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>58366.19</grossCommission>
          </broker>
          <broker>
            <brokerName>BofA Securities, Inc.</brokerName>
            <brokerFileNo>8-69787</brokerFileNo>
            <brokerCrdNo>000283942</brokerCrdNo>
            <brokerLei>549300HN4UKV1E2R3U73</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>60423.8</grossCommission>
          </broker>
          <broker>
            <brokerName>Credit Suisse Securities (USA) LLC</brokerName>
            <brokerFileNo>8-422</brokerFileNo>
            <brokerCrdNo>000000816</brokerCrdNo>
            <brokerLei>1V8Y6QCX6YMJ2OELII46</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>177408.27</grossCommission>
          </broker>
          <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>210667.83</grossCommission>
          </broker>
          <broker>
            <brokerName>Goldman Sachs &amp; Co. LLC</brokerName>
            <brokerFileNo>8-129</brokerFileNo>
            <brokerCrdNo>000000361</brokerCrdNo>
            <brokerLei>FOR8UP27PHTHYVLBNG30</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>62861.62</grossCommission>
          </broker>
          <broker>
            <brokerName>J &amp; E Davy</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>63540061DPCBNMCGRY22</brokerLei>
            <brokerCountry>IE</brokerCountry>
            <grossCommission>66860.53</grossCommission>
          </broker>
          <broker>
            <brokerName>RBC Capital Markets, LLC</brokerName>
            <brokerFileNo>8-45411</brokerFileNo>
            <brokerCrdNo>000031194</brokerCrdNo>
            <brokerLei>549300LCO2FLSSVFFR64</brokerLei>
            <brokerStateCountry brokerState="US-NY" brokerCountry="US"/>
            <grossCommission>117785</grossCommission>
          </broker>
          <broker>
            <brokerName>Societe Generale</brokerName>
            <brokerFileNo>N/A</brokerFileNo>
            <brokerCrdNo>000000000</brokerCrdNo>
            <brokerLei>O2RNE8IBXP4R0TD8PU41</brokerLei>
            <brokerCountry>FR</brokerCountry>
            <grossCommission>49917.63</grossCommission>
          </broker>
        </brokers>
        <aggregateCommission>1363377.85</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>UBS Securities LLC</principalName>
            <principalFileNo>8-22651</principalFileNo>
            <principalCrdNo>000007654</principalCrdNo>
            <principalLei>T6FIZBDPKLYJKFCRVK44</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>143487501.12</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>343593836.62</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1143011657.44</principalTotalPurchaseSale>
          </principalTransaction>
          <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>498952965.28</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>4030161.07</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>2133076121.53</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1698737742.15</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>Long-Term US Government Bond Portfolio</mgmtInvFundName>
        <mgmtInvSeriesId>S000018234</mgmtInvSeriesId>
        <mgmtInvLei>G1NIKRLT4013DJUHQR28</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>1</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="Long-Term US Government Bond Portfolio" sharesOutstandingClassId="C000050282" sharesOutstandingTickerSymbol="N/A"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Underlying fund</fundType>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>N</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <paymentToAgentManagerType>N/A</paymentToAgentManagerType>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>Mason Street Advisors, LLC</investmentAdviserName>
            <investmentAdviserFileNo>801-60721</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000114085</investmentAdviserCrdNo>
            <investmentAdviserLei>GK4LJB5OE5ID5VYOCY69</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-WI" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <subAdvisers>
          <subAdviser>
            <subAdviserName>Pacific Investment Management Company LLC</subAdviserName>
            <subAdviserFileNo>801-48187</subAdviserFileNo>
            <subAdviserCrdNo>000104559</subAdviserCrdNo>
            <subAdviserLei>549300KGPYQZXGMYYN38</subAdviserLei>
            <isSubAdviserAffiliated>N</isSubAdviserAffiliated>
            <subAdviserStateCountry subAdviserState="US-CA" subAdviserCountry="US"/>
            <isSubAdviserHired>N</isSubAdviserHired>
          </subAdviser>
        </subAdvisers>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>IHS Markit Ltd.</pricingServiceName>
            <pricingServiceLei>549300HLPTRASHS0E726</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>JPMorgan Chase &amp; Co.</pricingServiceName>
            <pricingServiceLei>8I5DZWZKVSZI1NUHU748</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Refinitiv US Holdings Inc.</pricingServiceName>
            <pricingServiceLei>549300NF240HXJO7N016</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-MA" 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>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>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>The Northwestern Mutual Life Insurance Company</adminName>
            <adminLei>1DU7IM20QESYGDO4HO54</adminLei>
            <adminStateCountry adminState="US-WI" adminCountry="US"/>
            <isAdminAffiliated>Y</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>Northwestern Mutual Investment Services, LLC</brokerDealerName>
            <brokerDealerFileNo>8-14088</brokerDealerFileNo>
            <brokerDealerCrdNo>000002881</brokerDealerCrdNo>
            <brokerDealerLei>CYO86L8D7HTXW9SOZX28</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-WI" brokerDealerCountry="US"/>
            <brokerDealerCommission>0</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1730444728.17</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>872004960.95</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>57022600.71</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>State Street Bank and Trust Company</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>571474TGEMMWANRLN572</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>82123415.88</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Credit Suisse Securities (USA) LLC</principalName>
            <principalFileNo>8-422</principalFileNo>
            <principalCrdNo>000000816</principalCrdNo>
            <principalLei>1V8Y6QCX6YMJ2OELII46</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1664747133.55</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>725547919.13</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>83908488.61</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Societe Generale</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>000000000</principalCrdNo>
            <principalLei>O2RNE8IBXP4R0TD8PU41</principalLei>
            <principalCountry>FR</principalCountry>
            <principalTotalPurchaseSale>124700000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Scotia Capital (USA) Inc.</principalName>
            <principalFileNo>8-3716</principalFileNo>
            <principalCrdNo>000002739</principalCrdNo>
            <principalLei>549300BLWPABP1VNME36</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>68600000</principalTotalPurchaseSale>
          </principalTransaction>
          <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>59508805.03</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>5582999749.49</principalAggregatePurchase>
        <isBrokerageResearchPayment>Y</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>119691505.04</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
        <isSwingPricing>N</isSwingPricing>
      </managementInvestmentQuestion>
    </managementInvestmentQuestionSeriesInfo>
    <attachmentsTab>
      <isLegalProceedings>true</isLegalProceedings>
      <isIPAReportInternalControl>true</isIPAReportInternalControl>
    </attachmentsTab>
    <signature registrantSignedName="NORTHWESTERN MUTUAL SERIES FUND INC" signedDate="2020-03-06" signature="Barbara Courtney" title="Controller and Chief Accounting Officer"/>
  </formData>
</edgarSubmission>
