<SEC-DOCUMENT>0001749768-25-000040.txt : 20250205
<SEC-HEADER>0001749768-25-000040.hdr.sgml : 20250205
<ACCEPTANCE-DATETIME>20250205092924
ACCESSION NUMBER:		0001749768-25-000040
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250205

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WATTS WATER TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000795403
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS FABRICATED METAL PRODUCTS [3490]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				042916536
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-38025
		FILM NUMBER:		25591128

	BUSINESS ADDRESS:	
		STREET 1:		815 CHESTNUT ST
		CITY:			NORTH ANDOVER
		STATE:			MA
		ZIP:			01845
		BUSINESS PHONE:		9786881811

	MAIL ADDRESS:	
		STREET 1:		815 CHESTNUT STREET
		CITY:			NORTH ANDOVER
		STATE:			MA
		ZIP:			01845

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WATTS INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Impax Asset Management Group plc
		CENTRAL INDEX KEY:			0001749768
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		7TH FLOOR
		STREET 2:		30 PANTON STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			SW1Y 4AJ
		BUSINESS PHONE:		00442039123000

	MAIL ADDRESS:	
		STREET 1:		7TH FLOOR
		STREET 2:		30 PANTON STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			SW1Y 4AJ
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001749768-23-000004</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001749768</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>




    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>1</amendmentNo>
      <securitiesClassTitle>Common stock, $0.1 par value per share</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000795403</issuerCik>
        <issuerName>WATTS WATER TECHNOLOGIES INC</issuerName>
        <issuerCusip>942749102</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>815 CHESTNUT ST</com:street1>
          <com:street2>815 CHESTNUT ST</com:street2>
          <com:city>NORTH ANDOVER</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01845</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Impax Asset Management Group plc</reportingPersonName>

      <memberGroup>a</memberGroup>
      <citizenshipOrOrganization>X0</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>1091042</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>1091042</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1091042</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>4.0</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>

    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Impax Asset Management LTD</reportingPersonName>

      <memberGroup>a</memberGroup>
      <citizenshipOrOrganization>X0</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>963992</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>963992</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>963992</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>3.5</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>

    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Impax Asset Management (AIFM) Ltd</reportingPersonName>

      <memberGroup>a</memberGroup>
      <citizenshipOrOrganization>X0</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>127050</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>127050</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>127050</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>0.5</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>

    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>WATTS WATER TECHNOLOGIES INC</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>815 CHESTNUT ST, NORTH ANDOVER, MA, 01845</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Impax Asset Management Group plc</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>7TH FLOOR, 30 PANTON STREET, LONDON, United Kingdom, SW1Y 4AJ</principalBusinessOfficeOrResidenceAddress>
        <citizenship>United Kingdom</citizenship>
      </item2>
      <item3>
          <typeOfPersonFiling>HC</typeOfPersonFiling>

      </item3>
      <item4>
        <amountBeneficiallyOwned>1091042</amountBeneficiallyOwned>
        <classPercent>4.0</classPercent>
        <numberOfSharesPersonHas>
            <solePowerOrDirectToVote>1091042</solePowerOrDirectToVote>
            <sharedPowerOrDirectToVote>0</sharedPowerOrDirectToVote>
            <solePowerOrDirectToDispose>1091042</solePowerOrDirectToDispose>
            <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>N</notApplicableFlag>
        <classOwnership5PercentOrLess>Y</classOwnership5PercentOrLess>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>

      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>

      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>

      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>

      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>

    <signatureInformation>
      <reportingPersonName>Impax Asset Management Group plc</reportingPersonName>
      <signatureDetails>
        <signature>Karen Cockburn</signature>
        <title>Chief Financial Officer</title>
        <date>02/04/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Impax Asset Management LTD</reportingPersonName>
      <signatureDetails>
        <signature>Karen Cockburn</signature>
        <title>Chief Financial Officer</title>
        <date>02/04/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Impax Asset Management (AIFM) Ltd</reportingPersonName>
      <signatureDetails>
        <signature>Karen Cockburn</signature>
        <title>Chief Financial Officer</title>
        <date>02/04/2025</date>
      </signatureDetails>
    </signatureInformation>
        <signatureComments>After reasonable inquiry and to the best of my knowledge and belief, I certify that theinformation set forth in this statement is true, complete and correct.</signatureComments>
  </formData>
</edgarSubmission>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
