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    <nameOfIssuer>ADVANCED ENERGY INDUSTRIES</nameOfIssuer>
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    <nameOfIssuer>AGILYSYS INC</nameOfIssuer>
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    <nameOfIssuer>AMETEK INC</nameOfIssuer>
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    <nameOfIssuer>BIO TECHNE CORP</nameOfIssuer>
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    <nameOfIssuer>BWX TECHNOLOGIES INC</nameOfIssuer>
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    <nameOfIssuer>CACI INTERNATIONAL INC CL A</nameOfIssuer>
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    <nameOfIssuer>CHARLES RIVER LABORATORIES</nameOfIssuer>
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    <nameOfIssuer>COHERENT CORP</nameOfIssuer>
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    <nameOfIssuer>CROWN CASTLE INC.</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
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    <titleOfClass>COM</titleOfClass>
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    <nameOfIssuer>FIRST AMERICAN FINANCIAL CORP</nameOfIssuer>
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    <titleOfClass>COM</titleOfClass>
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    <nameOfIssuer>GLACIER BANCORP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
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    <nameOfIssuer>HEICO CORP CL A</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
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    <titleOfClass>COM</titleOfClass>
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    <titleOfClass>COM</titleOfClass>
    <cusip>45866F104</cusip>
    <figi>BBG000C1FB75</figi>
    <value>54018705</value>
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      <sshPrnamt>294428</sshPrnamt>
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      <Shared>294428</Shared>
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    <nameOfIssuer>KBR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>48242W106</cusip>
    <figi>BBG000P28YZ6</figi>
    <value>99221082</value>
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      <Shared>1949529</Shared>
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    <nameOfIssuer>KEYSIGHT TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>49338L103</cusip>
    <figi>BBG0059FN811</figi>
    <value>34570363</value>
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      <sshPrnamt>210975</sshPrnamt>
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    <votingAuthority>
      <Sole>0</Sole>
      <Shared>210975</Shared>
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    <nameOfIssuer>LKQ CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501889208</cusip>
    <figi>BBG000PXDL44</figi>
    <value>42326116</value>
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      <sshPrnamt>1143640</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>1143640</Shared>
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    <nameOfIssuer>MARKEL GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>570535104</cusip>
    <figi>BBG000FC7366</figi>
    <value>18028171</value>
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      <sshPrnamt>9026</sshPrnamt>
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    <votingAuthority>
      <Sole>0</Sole>
      <Shared>9026</Shared>
      <None>0</None>
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    <nameOfIssuer>MASTERCARD INC CL A</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>57636Q104</cusip>
    <figi>BBG000F1ZSQ2</figi>
    <value>47010777</value>
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      <sshPrnamt>83658</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>83658</Shared>
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    <nameOfIssuer>MCGRATH RENTCORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>580589109</cusip>
    <figi>BBG000BP02D2</figi>
    <value>42168622</value>
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      <sshPrnamt>363648</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>331932</Shared>
      <None>31716</None>
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    <nameOfIssuer>MERCURY SYSTEMS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>589378108</cusip>
    <figi>BBG000BX5GS3</figi>
    <value>51592602</value>
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      <sshPrnamt>957902</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>874273</Shared>
      <None>83629</None>
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    <nameOfIssuer>MID-AMERICA APARTMENT COMMUNIT</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>59522J103</cusip>
    <figi>BBG000BLMY92</figi>
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      <sshPrnamt>198372</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>198372</Shared>
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    <nameOfIssuer>MINERALS TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>603158106</cusip>
    <figi>BBG000BB61F7</figi>
    <value>31567280</value>
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      <sshPrnamt>573221</sshPrnamt>
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      <Shared>523227</Shared>
      <None>49994</None>
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    <nameOfIssuer>NNN REIT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>637417106</cusip>
    <figi>BBG000CLP0Y4</figi>
    <value>33146825</value>
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      <sshPrnamt>767643</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>767643</Shared>
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    <nameOfIssuer>PACIFIC PREMIER BANCORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69478X105</cusip>
    <figi>BBG000BNS256</figi>
    <value>10463782</value>
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      <sshPrnamt>496149</sshPrnamt>
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    <nameOfIssuer>PDF SOLUTIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>693282105</cusip>
    <figi>BBG000CYCKR4</figi>
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    <nameOfIssuer>POWER INTEGRATIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>739276103</cusip>
    <figi>BBG000BTT3D1</figi>
    <value>44861706</value>
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      <sshPrnamt>802535</sshPrnamt>
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    <nameOfIssuer>PROSPERITY BANCSHARES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>743606105</cusip>
    <figi>BBG000BHY4D9</figi>
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      <sshPrnamt>1158491</sshPrnamt>
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      <Sole>0</Sole>
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    <nameOfIssuer>RBC BEARINGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75524B104</cusip>
    <figi>BBG000GMGNB3</figi>
    <value>110739668</value>
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      <sshPrnamt>287785</sshPrnamt>
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    <investmentDiscretion>DFND</investmentDiscretion>
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      <Sole>0</Sole>
      <Shared>271138</Shared>
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  <infoTable>
    <nameOfIssuer>RENTOKIL INITIAL PLC SPONSORED</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>760125104</cusip>
    <figi>BBG000BVPG41</figi>
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      <Sole>0</Sole>
      <Shared>1328670</Shared>
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    <nameOfIssuer>RLI CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>749607107</cusip>
    <figi>BBG000BS7ZF4</figi>
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      <sshPrnamt>405852</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>370435</Shared>
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  <infoTable>
    <nameOfIssuer>SENSIENT TECHNOLOGIES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>81725T100</cusip>
    <figi>BBG000J79P80</figi>
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      <sshPrnamt>675996</sshPrnamt>
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    <nameOfIssuer>SIMPSON MANUFACTURING</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>829073105</cusip>
    <figi>BBG000JLC8L8</figi>
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      <sshPrnamt>226809</sshPrnamt>
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    <nameOfIssuer>SS&amp;C  TECHNOLOGIES HOLDINGS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78467J100</cusip>
    <figi>BBG000RJ2J04</figi>
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      <sshPrnamt>1623144</sshPrnamt>
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      <Sole>0</Sole>
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    <nameOfIssuer>STERIS PLC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G8473T100</cusip>
    <figi>BBG00MRHG523</figi>
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      <sshPrnamt>151035</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>151035</Shared>
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    <nameOfIssuer>THERMO FISHER SCIENTIFIC INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>883556102</cusip>
    <figi>BBG000BVDLH9</figi>
    <value>23227992</value>
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      <sshPrnamt>57288</sshPrnamt>
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      <Sole>0</Sole>
      <Shared>57288</Shared>
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    <nameOfIssuer>UGI CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>902681105</cusip>
    <figi>BBG000BVYN55</figi>
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      <sshPrnamt>4807958</sshPrnamt>
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    <nameOfIssuer>UNITED COMMUNITY BANKS INC  OF</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>90984P303</cusip>
    <figi>BBG000BL7GB5</figi>
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      <sshPrnamt>1736313</sshPrnamt>
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      <Shared>1584882</Shared>
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    <nameOfIssuer>VALVOLINE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>92047W101</cusip>
    <figi>BBG003DNHV56</figi>
    <value>61494859</value>
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      <Shared>1482126</Shared>
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  <infoTable>
    <nameOfIssuer>VERRA MOBILITY CORP CL A</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>92511U102</cusip>
    <figi>BBG00G4XQ9Z1</figi>
    <value>52294133</value>
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      <sshPrnamt>2059635</sshPrnamt>
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      <Shared>1880001</Shared>
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    <nameOfIssuer>VISA INC CL A</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>92826C839</cusip>
    <figi>BBG000PSKYX7</figi>
    <value>46482081</value>
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      <sshPrnamt>130917</sshPrnamt>
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      <Shared>130917</Shared>
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    <nameOfIssuer>WASTE CONNECTIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>94106B101</cusip>
    <figi>BBG000FLHZZ2</figi>
    <value>127032151</value>
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      <sshPrnamt>680335</sshPrnamt>
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      <Shared>680335</Shared>
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    <nameOfIssuer>WEX INC.</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>96208T104</cusip>
    <figi>BBG000BVZP59</figi>
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      <sshPrnamt>154399</sshPrnamt>
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      <Shared>154399</Shared>
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  <infoTable>
    <nameOfIssuer>WOODWARD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>980745103</cusip>
    <figi>BBG000BD53V2</figi>
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      <sshPrnamt>514944</sshPrnamt>
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    <investmentDiscretion>DFND</investmentDiscretion>
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      <Sole>0</Sole>
      <Shared>486670</Shared>
      <None>28274</None>
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</informationTable>
