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		<nameOfIssuer>ADVANCE AUTO PARTS INC</nameOfIssuer>
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		<cusip>00751Y106</cusip>
		<value>206449</value>
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		<nameOfIssuer>ALBANY INTL CORP</nameOfIssuer>
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		<cusip>012348108</cusip>
		<value>11305</value>
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		<nameOfIssuer>ALIBABA GROUP HLDG LTD</nameOfIssuer>
		<titleOfClass>SPONSORED ADS</titleOfClass>
		<cusip>01609W102</cusip>
		<value>356</value>
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			<None>0</None>
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		<nameOfIssuer>ALIGN TECHNOLOGY INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>016255101</cusip>
		<value>144903</value>
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			<Sole>495265</Sole>
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			<None>32731</None>
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		<nameOfIssuer>ALTRA INDL MOTION CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>02208R106</cusip>
		<value>82745</value>
		<shrsOrPrnAmt>
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		<nameOfIssuer>AMETEK INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>031100100</cusip>
		<value>265194</value>
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			<Sole>2784380</Sole>
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		<nameOfIssuer>APTARGROUP INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>038336103</cusip>
		<value>212358</value>
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		<votingAuthority>
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			<None>117390</None>
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		<nameOfIssuer>ATRICURE INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>04963C209</cusip>
		<value>74583</value>
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		<nameOfIssuer>AVANOS MED INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>05350V106</cusip>
		<value>98564</value>
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		<nameOfIssuer>B &amp; G FOODS INC NEW</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>05508R106</cusip>
		<value>73603</value>
		<shrsOrPrnAmt>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<votingAuthority>
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			<None>745870</None>
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		<nameOfIssuer>BARNES GROUP INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>067806109</cusip>
		<value>75164</value>
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		<nameOfIssuer>BIO RAD LABS INC</nameOfIssuer>
		<titleOfClass>CL A</titleOfClass>
		<cusip>090572207</cusip>
		<value>91269</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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			<None>12425</None>
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		<nameOfIssuer>BIO-TECHNE CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>09073M104</cusip>
		<value>239179</value>
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		<votingAuthority>
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		<nameOfIssuer>BLACKBAUD INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>09227Q100</cusip>
		<value>67420</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>BLACKLINE INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>09239B109</cusip>
		<value>55825</value>
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			<sshPrnamt>673325</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>504685</Sole>
			<Shared>0</Shared>
			<None>168640</None>
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		<nameOfIssuer>BOSTON BEER INC</nameOfIssuer>
		<titleOfClass>CL A</titleOfClass>
		<cusip>100557107</cusip>
		<value>76336</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>BROWN FORMAN CORP</nameOfIssuer>
		<titleOfClass>CL B</titleOfClass>
		<cusip>115637209</cusip>
		<value>60245</value>
		<shrsOrPrnAmt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>892670</Sole>
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		<nameOfIssuer>BRYN MAWR BK CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>117665109</cusip>
		<value>29123</value>
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		<nameOfIssuer>CSW INDUSTRIALS INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>126402106</cusip>
		<value>32561</value>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>360350</Sole>
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			<None>110800</None>
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		<nameOfIssuer>CVB FINL CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>126600105</cusip>
		<value>46767</value>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1881945</Sole>
			<Shared>0</Shared>
			<None>613625</None>
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		<nameOfIssuer>CAMPBELL SOUP CO</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>134429109</cusip>
		<value>65535</value>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1239145</Sole>
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			<None>81330</None>
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		<nameOfIssuer>CANTEL MED CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>138098108</cusip>
		<value>162131</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>CARDIOVASCULAR SYS INC DEL</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>141619106</cusip>
		<value>92668</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>CATALENT INC</nameOfIssuer>
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		<cusip>148806102</cusip>
		<value>359581</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>4285770</Sole>
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		<nameOfIssuer>CHASE CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>16150R104</cusip>
		<value>27242</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>201435</Sole>
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			<None>64340</None>
		</votingAuthority>
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		<nameOfIssuer>CHURCH &amp; DWIGHT INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>171340102</cusip>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>564879</Sole>
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			<None>35490</None>
		</votingAuthority>
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		<nameOfIssuer>COMMERCE BANCSHARES INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>200525103</cusip>
		<value>59065</value>
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			<Sole>931596</Sole>
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		<nameOfIssuer>COMMUNITY BK SYS INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>CONMED CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>207410101</cusip>
		<value>105477</value>
		<shrsOrPrnAmt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>COOPER COS INC</nameOfIssuer>
		<titleOfClass>COM NEW</titleOfClass>
		<cusip>216648402</cusip>
		<value>150857</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>CULLEN FROST BANKERS INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>229899109</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>DENTSPLY SIRONA INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>24906P109</cusip>
		<value>176717</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>DUNKIN BRANDS GROUP INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>265504100</cusip>
		<value>117807</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>E L F BEAUTY INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>26856L103</cusip>
		<value>67906</value>
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		<nameOfIssuer>EDWARDS LIFESCIENCES CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>28176E108</cusip>
		<value>196983</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>ENVESTNET INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>804805</Sole>
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			<None>262360</None>
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		<nameOfIssuer>ENVISTA HOLDINGS CORPORATION</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>29415F104</cusip>
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		<votingAuthority>
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		<nameOfIssuer>EVOQUA WATER TECHNOLOGIES CO</nameOfIssuer>
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		<cusip>30057T105</cusip>
		<value>31229</value>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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			<sshPrnamt>4037660</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>3808490</Sole>
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			<None>229170</None>
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		<nameOfIssuer>FRESHPET INC</nameOfIssuer>
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		<cusip>358039105</cusip>
		<value>98850</value>
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			<sshPrnamt>1181565</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>890615</Sole>
			<Shared>0</Shared>
			<None>290950</None>
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		<nameOfIssuer>FULLER H B CO</nameOfIssuer>
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		<value>41513</value>
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			<sshPrnamt>930790</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>703485</Sole>
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			<None>227305</None>
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		<nameOfIssuer>GALLAGHER ARTHUR J &amp; CO</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>363576109</cusip>
		<value>239950</value>
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			<sshPrnamt>2461273</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>2308933</Sole>
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			<None>152340</None>
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		<nameOfIssuer>GENERAC HLDGS INC</nameOfIssuer>
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		<value>44453</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>276810</Sole>
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			<None>87770</None>
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		<nameOfIssuer>GENETRON HLDGS LTD</nameOfIssuer>
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		<value>302</value>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>25000</Sole>
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		<nameOfIssuer>GERMAN AMERN BANCORP INC</nameOfIssuer>
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			<sshPrnamt>1194635</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>903120</Sole>
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		<nameOfIssuer>GLOBUS MED INC</nameOfIssuer>
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		<value>36664</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>583330</Sole>
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			<None>185150</None>
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		<nameOfIssuer>GUIDEWIRE SOFTWARE INC</nameOfIssuer>
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		<value>65724</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>556425</Sole>
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			<None>36485</None>
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		<nameOfIssuer>HERSHEY CO</nameOfIssuer>
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		<cusip>427866108</cusip>
		<value>140616</value>
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			<sshPrnamt>1084835</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1018060</Sole>
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			<None>66775</None>
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		<nameOfIssuer>HOSTESS BRANDS INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>7260030</Sole>
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		<nameOfIssuer>IDEX CORP</nameOfIssuer>
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		<value>199773</value>
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			<sshPrnamt>1264065</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1185940</Sole>
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			<None>78125</None>
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		<nameOfIssuer>INDEPENDENT BANK CORP MASS</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>453836108</cusip>
		<value>82064</value>
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			<sshPrnamt>1223193</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>920298</Sole>
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			<None>302895</None>
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		<nameOfIssuer>INNOSPEC INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>45768S105</cusip>
		<value>51725</value>
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			<sshPrnamt>669580</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>506670</Sole>
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			<None>162910</None>
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		<nameOfIssuer>INSPIRE MED SYS INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>457730109</cusip>
		<value>80335</value>
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			<sshPrnamt>923180</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>695615</Sole>
			<Shared>0</Shared>
			<None>227565</None>
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		<nameOfIssuer>INTEGRA LIFESCIENCES HLDGS C</nameOfIssuer>
		<titleOfClass>COM NEW</titleOfClass>
		<cusip>457985208</cusip>
		<value>291719</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>5320400</Sole>
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			<None>887710</None>
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		<nameOfIssuer>J &amp; J SNACK FOODS CORP</nameOfIssuer>
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		<cusip>466032109</cusip>
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			<sshPrnamt>256610</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>192715</Sole>
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		<nameOfIssuer>JOHN BEAN TECHNOLOGIES CORP</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1164280</Sole>
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		<nameOfIssuer>LAMB WESTON HLDGS INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>LANCASTER COLONY CORP</nameOfIssuer>
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		<cusip>513847103</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>707233</Sole>
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			<None>232900</None>
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		<nameOfIssuer>MGP INGREDIENTS INC NEW</nameOfIssuer>
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		<cusip>55303J106</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>MSA SAFETY INC</nameOfIssuer>
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		<cusip>553498106</cusip>
		<value>122327</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>MASIMO CORP</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>MOLSON COORS BEVERAGE CO</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>MORNINGSTAR INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>NATIONAL VISION HLDGS INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>NEW RELIC INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>64829B100</cusip>
		<value>260772</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>3167065</Sole>
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		<nameOfIssuer>NORDSON CORP</nameOfIssuer>
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		<cusip>655663102</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>444915</Sole>
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		<nameOfIssuer>NORTHERN TR CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>665859104</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>NUTANIX INC</nameOfIssuer>
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		<cusip>67059N108</cusip>
		<value>74751</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>OKTA INC</nameOfIssuer>
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		<cusip>679295105</cusip>
		<value>183586</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>860929</Sole>
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			<None>55945</None>
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		<nameOfIssuer>PALO ALTO NETWORKS INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>697435105</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<cusip>69753M105</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>PRESTIGE CONSMR HEALTHCARE I</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>PROSPERITY BANCSHARES INC</nameOfIssuer>
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			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>2235920</Sole>
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			<None>357830</None>
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		<nameOfIssuer>PURE STORAGE INC</nameOfIssuer>
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		<value>323019</value>
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			<sshPrnamt>18639277</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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			<None>2771775</None>
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		<nameOfIssuer>Q2 HLDGS INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
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			<sshPrnamt>2367460</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>QUALYS INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>229260</Sole>
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			<None>75665</None>
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		<nameOfIssuer>RITCHIE BROS AUCTIONEERS</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>767744105</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1331885</Sole>
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		<nameOfIssuer>ROCKWELL AUTOMATION INC</nameOfIssuer>
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			<sshPrnamt>961337</sshPrnamt>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>902167</Sole>
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		<nameOfIssuer>SVB FINANCIAL GROUP</nameOfIssuer>
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			<sshPrnamt>441614</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>414489</Sole>
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			<None>27125</None>
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		<nameOfIssuer>SAILPOINT TECHNLGIES HLDGS I</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SALLY BEAUTY HLDGS INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SELECTIVE INS GROUP INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SENSIENT TECHNOLOGIES CORP</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SERVICENOW INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>SHAKE SHACK INC</nameOfIssuer>
		<titleOfClass>CL A</titleOfClass>
		<cusip>819047101</cusip>
		<value>12605</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SIMPLY GOOD FOODS CO</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SMARTSHEET INC</nameOfIssuer>
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		<cusip>83200N103</cusip>
		<value>96340</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SMUCKER J M CO</nameOfIssuer>
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		<value>209111</value>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>SPLUNK INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>STANDEX INTL CORP</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
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		<nameOfIssuer>STOCK YDS BANCORP INC</nameOfIssuer>
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		<votingAuthority>
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		<nameOfIssuer>SYNOPSYS INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>TACTILE SYS TECHNOLOGY INC</nameOfIssuer>
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		<nameOfIssuer>TENABLE HLDGS INC</nameOfIssuer>
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		<votingAuthority>
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		<nameOfIssuer>TORO CO</nameOfIssuer>
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		<nameOfIssuer>TRACTOR SUPPLY CO</nameOfIssuer>
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		<nameOfIssuer>TRADEWEB MKTS INC</nameOfIssuer>
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		<cusip>892672106</cusip>
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		<nameOfIssuer>TREEHOUSE FOODS INC</nameOfIssuer>
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		<nameOfIssuer>TRIMAS CORP</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>UMB FINL CORP</nameOfIssuer>
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		<cusip>902788108</cusip>
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		<nameOfIssuer>ULTA BEAUTY INC</nameOfIssuer>
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		<nameOfIssuer>VEEVA SYS INC</nameOfIssuer>
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		<nameOfIssuer>WASHINGTON TR BANCORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>WATERS CORP</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>941848103</cusip>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>WELBILT INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>WEST PHARMACEUTICAL SVSC INC</nameOfIssuer>
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		<investmentDiscretion>SOLE</investmentDiscretion>
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		<nameOfIssuer>WILEY JOHN &amp; SONS INC</nameOfIssuer>
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		<nameOfIssuer>WOLVERINE WORLD WIDE INC</nameOfIssuer>
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		<cusip>978097103</cusip>
		<value>80595</value>
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			<sshPrnamt>3384935</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
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		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>2553910</Sole>
			<Shared>0</Shared>
			<None>831025</None>
		</votingAuthority>
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	<infoTable>
		<nameOfIssuer>WORKDAY INC</nameOfIssuer>
		<titleOfClass>CL A</titleOfClass>
		<cusip>98138H101</cusip>
		<value>282764</value>
		<shrsOrPrnAmt>
			<sshPrnamt>1509200</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1416900</Sole>
			<Shared>0</Shared>
			<None>92300</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>WORKIVA INC</nameOfIssuer>
		<titleOfClass>COM CL A</titleOfClass>
		<cusip>98139A105</cusip>
		<value>31885</value>
		<shrsOrPrnAmt>
			<sshPrnamt>596085</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>450175</Sole>
			<Shared>0</Shared>
			<None>145910</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>YEXT INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>98585N106</cusip>
		<value>135876</value>
		<shrsOrPrnAmt>
			<sshPrnamt>8180385</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>6165085</Sole>
			<Shared>0</Shared>
			<None>2015300</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>ZSCALER INC</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>98980G102</cusip>
		<value>170728</value>
		<shrsOrPrnAmt>
			<sshPrnamt>1559160</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1463680</Sole>
			<Shared>0</Shared>
			<None>95480</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>ARCO PLATFORM LTD</nameOfIssuer>
		<titleOfClass>COM CL A</titleOfClass>
		<cusip>G04553106</cusip>
		<value>1354</value>
		<shrsOrPrnAmt>
			<sshPrnamt>31130</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>31130</Sole>
			<Shared>0</Shared>
			<None>0</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>ARGO GROUP INTL HLDGS LTD</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>G0464B107</cusip>
		<value>63396</value>
		<shrsOrPrnAmt>
			<sshPrnamt>1820143</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1371343</Sole>
			<Shared>0</Shared>
			<None>448800</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>CLARIVATE PLC</nameOfIssuer>
		<titleOfClass>ORD SHS</titleOfClass>
		<cusip>G21810109</cusip>
		<value>170535</value>
		<shrsOrPrnAmt>
			<sshPrnamt>7637030</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>7166735</Sole>
			<Shared>0</Shared>
			<None>470295</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>EVEREST RE GROUP LTD</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>G3223R108</cusip>
		<value>246911</value>
		<shrsOrPrnAmt>
			<sshPrnamt>1197435</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>1124015</Sole>
			<Shared>0</Shared>
			<None>73420</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>HELEN OF TROY CORP LTD</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>G4388N106</cusip>
		<value>34130</value>
		<shrsOrPrnAmt>
			<sshPrnamt>181003</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>136378</Sole>
			<Shared>0</Shared>
			<None>44625</None>
		</votingAuthority>
	</infoTable>
	<infoTable>
		<nameOfIssuer>JAMES RIV GROUP LTD</nameOfIssuer>
		<titleOfClass>COM</titleOfClass>
		<cusip>G5005R107</cusip>
		<value>56577</value>
		<shrsOrPrnAmt>
			<sshPrnamt>1257275</sshPrnamt>
			<sshPrnamtType>SH</sshPrnamtType>
		</shrsOrPrnAmt>
		<investmentDiscretion>SOLE</investmentDiscretion>
		<votingAuthority>
			<Sole>949220</Sole>
			<Shared>0</Shared>
			<None>308055</None>
		</votingAuthority>
	</infoTable>
</informationTable>
