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          <ccc>XXXXXXXX</ccc>
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      <regStreet1>1 Corporate Way</regStreet1>
      <regCity>Lansing</regCity>
      <regStateConditional regCountry="US" regState="US-MI"/>
      <regZipOrPostalCode>48951</regZipOrPostalCode>
      <regPhone>517-367-4336</regPhone>
      <seriesName>JNL Conservative Allocation Fund</seriesName>
      <seriesId>S000068120</seriesId>
      <seriesLei>54930038RM77FI8H6T34</seriesLei>
      <repPdEnd>2025-12-31</repPdEnd>
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      <isFinalFiling>N</isFinalFiling>
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      <invstOrSec>
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        <lei>N/A</lei>
        <title>JNL/Causeway International Value Select Fund</title>
        <cusip>46648M136</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46648M136            00002"/>
        </identifiers>
        <balance>484051.073</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>11989945.08</valUSD>
        <pctVal>2.0858618707</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL Multi-Manager Alternative Fund</name>
        <lei>N/A</lei>
        <title>JNL Multi-Manager Alternative Fund</title>
        <cusip>46644W492</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46644W492            00002"/>
        </identifiers>
        <balance>1984082.267</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>28709670.4</valUSD>
        <pctVal>4.9945522193</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/PPM America Total Return Fund</name>
        <lei>N/A</lei>
        <title>JNL/PPM America Total Return Fund</title>
        <cusip>46644W617</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46644W617            00002"/>
        </identifiers>
        <balance>3792878.48</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>53176156.29</valUSD>
        <pctVal>9.2509278481</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/T. Rowe Price Growth Stock Fund</name>
        <lei>N/A</lei>
        <title>JNL/T. Rowe Price Growth Stock Fund</title>
        <cusip>46648L609</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46648L609            00002"/>
        </identifiers>
        <balance>39102.884</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4380696.09</valUSD>
        <pctVal>0.7620991489</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL Multi-Manager Emerging Markets Equity Fund</name>
        <lei>N/A</lei>
        <title>JNL Multi-Manager Emerging Markets Equity Fund</title>
        <cusip>46644W187</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46644W187            00002"/>
        </identifiers>
        <balance>1619570.309</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>17491359.34</valUSD>
        <pctVal>3.0429296607</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL Multi-Manager Small Cap Value Fund</name>
        <lei>N/A</lei>
        <title>JNL Multi-Manager Small Cap Value Fund</title>
        <cusip>46644W443</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46644W443            00002"/>
        </identifiers>
        <balance>253310.005</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5727339.21</valUSD>
        <pctVal>0.9963714095</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/Newton Equity Income Fund</name>
        <lei>N/A</lei>
        <title>JNL/Newton Equity Income Fund</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46649U723            00002"/>
        </identifiers>
        <balance>179185.16</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7316130.08</valUSD>
        <pctVal>1.2727695309</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Jackson Credit Opportunities Fund</name>
        <lei>N/A</lei>
        <title>Jackson Credit Opportunities Fund</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46816A203            00002"/>
        </identifiers>
        <balance>2751572.832</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>29414313.57</valUSD>
        <pctVal>5.1171372946</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/Lord Abbett Short Duration Income Fund</name>
        <lei>N/A</lei>
        <title>JNL/Lord Abbett Short Duration Income Fund</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46649U749            00002"/>
        </identifiers>
        <balance>1703601.532</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>17291555.55</valUSD>
        <pctVal>3.0081702766</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/PPM America Investment Grade Credit Fund</name>
        <lei>N/A</lei>
        <title>JNL/PPM America Investment Grade Credit Fund</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46649B188            00002"/>
        </identifiers>
        <balance>255951.505</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2874335.4</valUSD>
        <pctVal>0.5000412074</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/PIMCO Income Fund</name>
        <lei>N/A</lei>
        <title>JNL/PIMCO Income Fund</title>
        <cusip>46648L187</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46648L187            00002"/>
        </identifiers>
        <balance>3477637.222</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>46461233.29</valUSD>
        <pctVal>8.0827488650</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>JNL/PPM America High Yield Bond Fund</name>
        <lei>N/A</lei>
        <title>JNL/PPM America High Yield Bond Fund</title>
        <cusip>46648M201</cusip>
        <identifiers>
          <other otherDesc="INTERNAL" value="46648M201            00002"/>
        </identifiers>
        <balance>334472.022</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7211216.79</valUSD>
        <pctVal>1.2545180185</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2026-02-25</ncom:dateSigned>
      <ncom:nameOfApplicant>JNL Series Trust</ncom:nameOfApplicant>
      <ncom:signature>Andrew Tedeschi</ncom:signature>
      <ncom:signerName>Andrew Tedeschi</ncom:signerName>
      <ncom:title>Principal Financial Officer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
