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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Halozyme Therapeutics Inc</name>
        <lei>529900242I3SV9AGM753</lei>
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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>Brink's Co/The</name>
        <lei>XFP140TFNOQMIVFTVQ13</lei>
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          <isin value="US1096961040"/>
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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>Inspire Medical Systems Inc</name>
        <lei>549300XQQCQ7HCJKTW25</lei>
        <title>Inspire Medical Systems Inc</title>
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          <isin value="US4577301090"/>
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        <assetCat>EC</assetCat>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Generac Holdings Inc</name>
        <lei>529900S2H2AHJHSFFI84</lei>
        <title>Generac Holdings Inc</title>
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          <isin value="US3687361044"/>
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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>BJ's Wholesale Club Holdings Inc</name>
        <lei>549300UCIWH1C93V0J03</lei>
        <title>BJ's Wholesale Club Holdings Inc</title>
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          <isin value="US05550J1016"/>
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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>Western Alliance Bancorp</name>
        <lei>5493003VJXZ5JXT9S762</lei>
        <title>Western Alliance Bancorp</title>
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          <isin value="US9576381092"/>
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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>Insulet Corp</name>
        <lei>549300TZTYD2PYN92D43</lei>
        <title>Insulet Corp</title>
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          <isin value="US45784P1012"/>
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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>Penumbra Inc</name>
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        <title>Penumbra Inc</title>
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          <isin value="US70975L1070"/>
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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>Axon Enterprise Inc</name>
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        <title>Axon Enterprise Inc</title>
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          <isin value="US05464C1018"/>
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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>Cree Inc</name>
        <lei>549300OGU88P3AW3TO93</lei>
        <title>Cree Inc</title>
        <cusip>225447101</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>Twist Bioscience Corp</name>
        <lei>549300T23BL59LCOH584</lei>
        <title>Twist Bioscience Corp</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>Varonis Systems Inc</name>
        <lei>549300SHIVNRRH7STS26</lei>
        <title>Varonis Systems Inc</title>
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        <assetCat>EC</assetCat>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>GoDaddy Inc</name>
        <lei>N/A</lei>
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      <invstOrSec>
        <name>MongoDB Inc</name>
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        <title>MongoDB Inc</title>
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      <invstOrSec>
        <name>Ares Management Corp</name>
        <lei>529900JUV61FH7B8VW38</lei>
        <title>Ares Management Corp</title>
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        <name>Proofpoint Inc</name>
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        <title>Proofpoint Inc</title>
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        <name>Nice Ltd</name>
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        <title>Nice Ltd</title>
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        <invCountry>IL</invCountry>
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        <name>Guidewire Software Inc</name>
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        <title>Guidewire Software Inc</title>
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        <name>Etsy Inc</name>
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        <title>Etsy Inc</title>
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        <name>Star Peak Energy Transition Corp</name>
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        <name>Martin Marietta Materials Inc</name>
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        <title>Martin Marietta Materials Inc</title>
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        <name>BWX Technologies Inc</name>
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        <title>BWX Technologies Inc</title>
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        <name>Booz Allen Hamilton Holding Corp</name>
        <lei>529900JPV47PIUWMA015</lei>
        <title>Booz Allen Hamilton Holding Corp</title>
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        <name>SolarEdge Technologies Inc</name>
        <lei>5493000K6Y58XXPDF853</lei>
        <title>SolarEdge Technologies Inc</title>
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        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
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      </invstOrSec>
      <invstOrSec>
        <name>Zendesk Inc</name>
        <lei>549300SLI6BN94BKKO36</lei>
        <title>Zendesk Inc</title>
        <cusip>98936J101</cusip>
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          <isin value="US98936J1016"/>
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        <balance>252400.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>36123488.00000000</valUSD>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <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>
      <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>2865567.00000000</balance>
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        <curCd>USD</curCd>
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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>Entegris Inc</name>
        <lei>IYX6OWO7BT5DKO3BYG52</lei>
        <title>Entegris Inc</title>
        <cusip>29362U104</cusip>
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          <isin value="US29362U1043"/>
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        <balance>362640.00000000</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>
      <invstOrSec>
        <name>Bright Horizons Family Solutions Inc</name>
        <lei>N/A</lei>
        <title>Bright Horizons Family Solutions Inc</title>
        <cusip>109194100</cusip>
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          <isin value="US1091941005"/>
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        <balance>280971.00000000</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>Grand Canyon Education Inc</name>
        <lei>529900XFER799IYOSW74</lei>
        <title>Grand Canyon Education Inc</title>
        <cusip>38526M106</cusip>
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          <isin value="US38526M1062"/>
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        <balance>863402.00000000</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>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Veracyte Inc</name>
        <lei>529900ESWZRHXOW27Z37</lei>
        <title>Veracyte Inc</title>
        <cusip>92337F107</cusip>
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          <isin value="US92337F1075"/>
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        <balance>1116120.00000000</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>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>j2 Global Inc</name>
        <lei>5493008OJYGLHD7MXA18</lei>
        <title>j2 Global Inc</title>
        <cusip>48123V102</cusip>
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          <isin value="US48123V1026"/>
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        <balance>381876.00000000</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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      <invstOrSec>
        <name>Blueprint Medicines Corp</name>
        <lei>5299004CC60O9T5HVM83</lei>
        <title>Blueprint Medicines Corp</title>
        <cusip>09627Y109</cusip>
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          <isin value="US09627Y1091"/>
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        <balance>220000.00000000</balance>
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        <curCd>USD</curCd>
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        <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>Cable One Inc</name>
        <lei>549300648QS85T0XSH18</lei>
        <title>Cable One Inc</title>
        <cusip>12685J105</cusip>
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          <isin value="US12685J1051"/>
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        <balance>25080.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>55871217.60000000</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>
        <name>Bio-Techne Corp</name>
        <lei>54930073RLKQ51TILZ35</lei>
        <title>Bio-Techne Corp</title>
        <cusip>09073M104</cusip>
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          <isin value="US09073M1045"/>
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        <balance>174883.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>55534096.65000000</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>
        <name>Zynga Inc</name>
        <lei>549300XNQ0U2EL088Z74</lei>
        <title>Zynga Inc</title>
        <cusip>98986T108</cusip>
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          <isin value="US98986T1088"/>
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        <balance>4660235.00000000</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>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Novanta Inc</name>
        <lei>N/A</lei>
        <title>Novanta Inc</title>
        <cusip>67000B104</cusip>
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          <isin value="CA67000B1040"/>
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        <balance>223976.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>26478442.72000000</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>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Advance Auto Parts Inc</name>
        <lei>529900UCNQ5H9FSL0Y70</lei>
        <title>Advance Auto Parts Inc</title>
        <cusip>00751Y106</cusip>
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          <isin value="US00751Y1064"/>
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        <balance>265616.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>41837176.16000000</valUSD>
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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>Aspen Technology Inc</name>
        <lei>529900B0MZWTVFG7CB96</lei>
        <title>Aspen Technology Inc</title>
        <cusip>045327103</cusip>
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          <isin value="US0453271035"/>
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        <balance>365246.00000000</balance>
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        <curCd>USD</curCd>
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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>Euronet Worldwide Inc</name>
        <lei>YG3575C4DSHJPA5KET68</lei>
        <title>Euronet Worldwide Inc</title>
        <cusip>298736109</cusip>
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        <balance>390003.00000000</balance>
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        <curCd>USD</curCd>
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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>Insmed Inc</name>
        <lei>529900Q55QAG41CCAC11</lei>
        <title>Insmed Inc</title>
        <cusip>457669307</cusip>
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        <balance>726438.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>24183121.02000000</valUSD>
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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>ABIOMED Inc</name>
        <lei>5493001EZN4ZTB4Z5887</lei>
        <title>ABIOMED Inc</title>
        <cusip>003654100</cusip>
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        <balance>101688.00000000</balance>
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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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        <name>Live Nation Entertainment Inc</name>
        <lei>5493007B9BM9ZXJINO78</lei>
        <title>Live Nation Entertainment Inc</title>
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      <invstOrSec>
        <name>Acadia Healthcare Co Inc</name>
        <lei>5493005CW985Y9D0NC11</lei>
        <title>Acadia Healthcare Co Inc</title>
        <cusip>00404A109</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <name>Ulta Beauty Inc</name>
        <lei>529900CIV6HN8M28YM82</lei>
        <title>Ulta Beauty Inc</title>
        <cusip>90384S303</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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      <invstOrSec>
        <name>Brooks Automation Inc</name>
        <lei>35ZN6X1ANPH25YN32Y17</lei>
        <title>Brooks Automation Inc</title>
        <cusip>114340102</cusip>
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        <name>HealthEquity Inc</name>
        <lei>529900LRJU1RAFQHM467</lei>
        <title>HealthEquity Inc</title>
        <cusip>42226A107</cusip>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>Masimo Corp</name>
        <lei>549300Q4A8JK0PIYCU29</lei>
        <title>Masimo Corp</title>
        <cusip>574795100</cusip>
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        <curCd>USD</curCd>
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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>New Fortress Energy Inc</name>
        <lei>N/A</lei>
        <title>New Fortress Energy Inc</title>
        <cusip>644393100</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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          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>HEICO Corp</name>
        <lei>529900O1DTDLCJ7L0I14</lei>
        <title>HEICO Corp</title>
        <cusip>422806208</cusip>
        <identifiers>
          <isin value="US4228062083"/>
        </identifiers>
        <balance>238343.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>27900431.58000000</valUSD>
        <pctVal>0.780610137713</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>Builders FirstSource Inc</name>
        <lei>549300W0SKP6L3H7DP63</lei>
        <title>Builders FirstSource Inc</title>
        <cusip>12008R107</cusip>
        <identifiers>
          <isin value="US12008R1077"/>
        </identifiers>
        <balance>1128954.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>46072612.74000000</valUSD>
        <pctVal>1.289039148826</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>Teleflex Inc</name>
        <lei>UUL85LWXB4NGSWWXIQ25</lei>
        <title>Teleflex Inc</title>
        <cusip>879369106</cusip>
        <identifiers>
          <isin value="US8793691069"/>
        </identifiers>
        <balance>109577.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>45098605.89000000</valUSD>
        <pctVal>1.261787971039</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>Ritchie Bros Auctioneers Inc</name>
        <lei>5493002H8U24DJXQ4886</lei>
        <title>Ritchie Bros Auctioneers Inc</title>
        <cusip>767744105</cusip>
        <identifiers>
          <isin value="CA7677441056"/>
        </identifiers>
        <balance>893677.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>62155235.35000000</valUSD>
        <pctVal>1.739005602370</pctVal>
        <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>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Encompass Health Corp</name>
        <lei>549300FVRPM9DRQZRG64</lei>
        <title>Encompass Health Corp</title>
        <cusip>29261A100</cusip>
        <identifiers>
          <isin value="US29261A1007"/>
        </identifiers>
        <balance>951833.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>78707070.77000000</valUSD>
        <pctVal>2.202099891415</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>FirstService Corp</name>
        <lei>5493000XUDIV75BCF118</lei>
        <title>FirstService Corp</title>
        <cusip>33767E202</cusip>
        <identifiers>
          <isin value="CA33767E2024"/>
        </identifiers>
        <balance>283101.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>38716892.76000000</valUSD>
        <pctVal>1.083237687651</pctVal>
        <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>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Mercury Systems Inc</name>
        <lei>549300P3B84SGK7HH679</lei>
        <title>Mercury Systems Inc</title>
        <cusip>589378108</cusip>
        <identifiers>
          <isin value="US5893781089"/>
        </identifiers>
        <balance>754895.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>66476053.70000000</valUSD>
        <pctVal>1.859895295332</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>STERIS PLC</name>
        <lei>N/A</lei>
        <title>STERIS PLC</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="IE00BFY8C754"/>
        </identifiers>
        <balance>255885.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48500442.90000000</valUSD>
        <pctVal>1.356966013330</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>IE</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Terminix Global Holdings Inc</name>
        <lei>549300GS10644JGL8R77</lei>
        <title>Terminix Global Holdings Inc</title>
        <cusip>88087E100</cusip>
        <identifiers>
          <isin value="US88087E1001"/>
        </identifiers>
        <balance>653795.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>33350082.95000000</valUSD>
        <pctVal>0.933082800877</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>Alarm.com Holdings Inc</name>
        <lei>549300HIH92U1EKIHZ32</lei>
        <title>Alarm.com Holdings Inc</title>
        <cusip>011642105</cusip>
        <identifiers>
          <isin value="US0116421050"/>
        </identifiers>
        <balance>594031.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>61452506.95000000</valUSD>
        <pctVal>1.719344368402</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>2021-01-21</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>
