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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>NVIDIA Corp</name>
        <lei>549300S4KLFTLO7GSQ80</lei>
        <title>NVIDIA Corp</title>
        <cusip>67066G104</cusip>
        <identifiers>
          <isin value="US67066G1040"/>
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        <balance>160755.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>25397682.45000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Simply Good Foods Co/The</name>
        <lei>N/A</lei>
        <title>Simply Good Foods Co/The</title>
        <cusip>82900L102</cusip>
        <identifiers>
          <isin value="US82900L1026"/>
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        <balance>37968.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1199409.12000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</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>
      <invstOrSec>
        <name>Doximity Inc</name>
        <lei>N/A</lei>
        <title>Doximity Inc</title>
        <cusip>26622P107</cusip>
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          <isin value="US26622P1075"/>
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        <balance>32795.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2011645.30000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Walmart Inc</name>
        <lei>Y87794H0US1R65VBXU25</lei>
        <title>Walmart Inc</title>
        <cusip>931142103</cusip>
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          <isin value="US9311421039"/>
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        <balance>79244.00000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</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>
        <name>TransUnion</name>
        <lei>549300ZS772LUNUMRB03</lei>
        <title>TransUnion</title>
        <cusip>89400J107</cusip>
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          <isin value="US89400J1079"/>
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        <balance>42847.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3770536.00000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Mastercard Inc</name>
        <lei>AR5L2ODV9HN37376R084</lei>
        <title>Mastercard Inc</title>
        <cusip>57636Q104</cusip>
        <identifiers>
          <isin value="US57636Q1040"/>
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        <balance>14412.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>8098679.28000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Broadcom Inc</name>
        <lei>549300WV6GIDOZJTV909</lei>
        <title>Broadcom Inc</title>
        <cusip>11135F101</cusip>
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          <isin value="US11135F1012"/>
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        <balance>41433.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>11421006.45000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Cameco Corp</name>
        <lei>N4BHALMXL3GMZKCUON55</lei>
        <title>Cameco Corp</title>
        <cusip>13321L108</cusip>
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          <isin value="CA13321L1085"/>
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        <balance>82741.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6141864.43000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CA</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Baldwin Insurance Group Inc/The</name>
        <lei>N/A</lei>
        <title>Baldwin Insurance Group Inc/The</title>
        <cusip>05589G102</cusip>
        <identifiers>
          <isin value="US05589G1022"/>
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        <balance>60044.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2570483.64000000</valUSD>
        <pctVal>1.084777729605</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Vital Farms Inc</name>
        <lei>549300S6NYY7ER3XOT61</lei>
        <title>Vital Farms Inc</title>
        <cusip>92847W103</cusip>
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          <isin value="US92847W1036"/>
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        <balance>57714.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2223143.28000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Abbott Laboratories</name>
        <lei>HQD377W2YR662HK5JX27</lei>
        <title>Abbott Laboratories</title>
        <cusip>002824100</cusip>
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          <isin value="US0028241000"/>
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        <balance>21894.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2977802.94000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Verra Mobility Corp</name>
        <lei>549300XX5EKGLR0M4152</lei>
        <title>Verra Mobility Corp</title>
        <cusip>92511U102</cusip>
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          <isin value="US92511U1025"/>
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        <balance>73910.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1876574.90000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>ServiceNow Inc</name>
        <lei>549300HJTQM36M0E1G39</lei>
        <title>ServiceNow Inc</title>
        <cusip>81762P102</cusip>
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          <isin value="US81762P1021"/>
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        <balance>6944.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>7138987.52000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Meta Platforms Inc</name>
        <lei>BQ4BKCS1HXDV9HN80Z93</lei>
        <title>Meta Platforms Inc</title>
        <cusip>30303M102</cusip>
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          <isin value="US30303M1027"/>
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        <balance>13685.00000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Oracle Corp</name>
        <lei>1Z4GXXU7ZHVWFCD8TV52</lei>
        <title>Oracle Corp</title>
        <cusip>68389X105</cusip>
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        <balance>28860.00000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>ACV Auctions Inc</name>
        <lei>N/A</lei>
        <title>ACV Auctions Inc</title>
        <cusip>00091G104</cusip>
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          <isin value="US00091G1040"/>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>ZipRecruiter Inc</name>
        <lei>549300HLOVNNFCY2IV80</lei>
        <title>ZipRecruiter Inc</title>
        <cusip>98980B103</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>PDF Solutions Inc</name>
        <lei>549300GMSP6MROFBI160</lei>
        <title>PDF Solutions Inc</title>
        <cusip>693282105</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Clearwater Analytics Holdings Inc</name>
        <lei>N/A</lei>
        <title>Clearwater Analytics Holdings Inc</title>
        <cusip>185123106</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Montrose Environmental Group Inc</name>
        <lei>254900ASI8K3LUB8Q958</lei>
        <title>Montrose Environmental Group Inc</title>
        <cusip>615111101</cusip>
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          <isin value="US6151111019"/>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Copart Inc</name>
        <lei>549300KVYX3JWMYEHU61</lei>
        <title>Copart Inc</title>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Apple Inc</name>
        <lei>HWUPKR0MPOU8FGXBT394</lei>
        <title>Apple Inc</title>
        <cusip>037833100</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>elf Beauty Inc</name>
        <lei>549300U2K9TCON25C029</lei>
        <title>elf Beauty Inc</title>
        <cusip>26856L103</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>West Pharmaceutical Services Inc</name>
        <lei>5493007NKRGM1RJQ1P16</lei>
        <title>West Pharmaceutical Services Inc</title>
        <cusip>955306105</cusip>
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        <curCd>USD</curCd>
        <valUSD>2721215.60000000</valUSD>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Amazon.com Inc</name>
        <lei>ZXTILKJKG63JELOEG630</lei>
        <title>Amazon.com Inc</title>
        <cusip>023135106</cusip>
        <identifiers>
          <isin value="US0231351067"/>
        </identifiers>
        <balance>56815.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12464642.85000000</valUSD>
        <pctVal>5.260242376473</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Q2 Holdings Inc</name>
        <lei>549300M9RKR9DZXWS696</lei>
        <title>Q2 Holdings Inc</title>
        <cusip>74736L109</cusip>
        <identifiers>
          <isin value="US74736L1098"/>
        </identifiers>
        <balance>27206.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2546209.54000000</valUSD>
        <pctVal>1.074533741790</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>IDEXX Laboratories Inc</name>
        <lei>OGMTXK0LUU1HKV2P0J84</lei>
        <title>IDEXX Laboratories Inc</title>
        <cusip>45168D104</cusip>
        <identifiers>
          <isin value="US45168D1046"/>
        </identifiers>
        <balance>5512.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2956306.08000000</valUSD>
        <pctVal>1.247599847583</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Confluent Inc</name>
        <lei>254900MRZ83YWUV7SN74</lei>
        <title>Confluent Inc</title>
        <cusip>20717M103</cusip>
        <identifiers>
          <isin value="US20717M1036"/>
        </identifiers>
        <balance>110831.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2763016.83000000</valUSD>
        <pctVal>1.166029254987</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <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>2025-07-23</ncom:dateSigned>
      <ncom:nameOfApplicant>WILLIAM BLAIR FUNDS</ncom:nameOfApplicant>
      <ncom:signature>John Raczek</ncom:signature>
      <ncom:signerName>John Raczek</ncom:signerName>
      <ncom:title>Principal Financial Officer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
