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      <totLiabs>339694.80</totLiabs>
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    </fundInfo>
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      <invstOrSec>
        <name>Lord Abbett Micro Cap Growth Fund</name>
        <lei>549300VL8AMXUES9JL76</lei>
        <title>Lord Abbett Micro Cap Growth Fund</title>
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        <identifiers>
          <isin value="US54400V1044"/>
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        <units>NS</units>
        <curCd>USD</curCd>
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        <pctVal>10.19311819004</pctVal>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        
        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
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        <name>Lord Abbett International Opportunities Fund</name>
        <lei>DJROU6QIURETNZO2HV24</lei>
        <title>Lord Abbett International Opportunities Fund</title>
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        <fairValLevel>1</fairValLevel>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
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        <name>Lord Abbett Focused Small Cap Value Fund</name>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
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      <invstOrSec>
        <name>Lord Abbett Value Opportunities Fund</name>
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        <fairValLevel>1</fairValLevel>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Lord Abbett Developing Growth Fund Inc</name>
        <lei>549300HWJ2W28SDTJF85</lei>
        <title>Lord Abbett Developing Growth Fund Inc</title>
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        <identifiers>
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        <curCd>USD</curCd>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2026-05-19</ncom:dateSigned>
      <ncom:nameOfApplicant>LORD ABBETT SECURITIES TRUST</ncom:nameOfApplicant>
      <ncom:signature>Michael Hebert</ncom:signature>
      <ncom:signerName>Michael Hebert</ncom:signerName>
      <ncom:title>Chief Financial Officer</ncom:title>
    </signature>
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</edgarSubmission>
