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        <title>U.S. Treasury Bills</title>
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        <assetCat>STIV</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>United States Treasury</name>
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        <curCd>USD</curCd>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
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          <couponKind>None</couponKind>
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      <invstOrSec>
        <name>State Street Global Advisors</name>
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        <title>State Street Navigator Securities Lending Portfolio II</title>
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          <isin value="US8574927062"/>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797PQ4</cusip>
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          <isin value="US912797PQ48"/>
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        <curCd>USD</curCd>
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        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
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          <couponKind>None</couponKind>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797PV3</cusip>
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          <isin value="US912797PV33"/>
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        <curCd>USD</curCd>
        <valUSD>48113887.00000000</valUSD>
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        <assetCat>STIV</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2026-03-19</maturityDt>
          <couponKind>None</couponKind>
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        <securityLending>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797PU5</cusip>
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          <isin value="US912797PU59"/>
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        <curCd>USD</curCd>
        <valUSD>126290480.15000000</valUSD>
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        <assetCat>STIV</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-07-01</maturityDt>
          <couponKind>None</couponKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797MS3</cusip>
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          <isin value="US912797MS31"/>
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        <balance>107714000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>105472009.57000000</valUSD>
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        <assetCat>STIV</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-10-02</maturityDt>
          <couponKind>None</couponKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797PT8</cusip>
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          <isin value="US912797PT86"/>
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        <curCd>USD</curCd>
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        <assetCat>STIV</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-06-24</maturityDt>
          <couponKind>None</couponKind>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797MH7</cusip>
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          <isin value="US912797MH75"/>
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        <fairValLevel>2</fairValLevel>
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        <securityLending>
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      <invstOrSec>
        <name>United States Treasury</name>
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        <cusip>912797QA8</cusip>
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          <isin value="US912797QA86"/>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797PW1</cusip>
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          <isin value="US912797PW16"/>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2025-09-11</maturityDt>
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      <invstOrSec>
        <name>United States Treasury</name>
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        <cusip>912797PY7</cusip>
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          <isin value="US912797PY71"/>
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        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>United States Treasury</name>
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        <cusip>912797NV5</cusip>
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        <fairValLevel>2</fairValLevel>
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          <couponKind>None</couponKind>
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        <securityLending>
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      <invstOrSec>
        <name>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
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        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2025-08-14</maturityDt>
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        <securityLending>
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      <invstOrSec>
        <name>State Street Global Advisors</name>
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        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>



    </explntrNotes>
    <signature>
      <ncom:dateSigned>2025-04-29</ncom:dateSigned>
      <ncom:nameOfApplicant>SPDR SERIES TRUST</ncom:nameOfApplicant>
      <ncom:signature>Arthur Jensen</ncom:signature>
      <ncom:signerName>Arthur Jensen</ncom:signerName>
      <ncom:title>Deputy Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
