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      <issuerCik>0000795403</issuerCik>
      <issuerName>WATTS WATER TECHNOLOGIES INC</issuerName>
      <secFileNumber>001-11499</secFileNumber>
      <issuerAddress>
        <com:street1>815 CHESTNUT ST</com:street1>
        <com:city>NORTH ANDOVER</com:city>
        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>01845</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>9786881811</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Pagano Robert J Jr</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
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    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>FIDELITY BROKERAGE SERVICES LLC</name>
        <address>
          <com:street1>245 SUMMER STREET</com:street1>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02110</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>9254</noOfUnitsSold>
      <aggregateMarketValue>1607142.00</aggregateMarketValue>
      <noOfUnitsOutstanding>27414400</noOfUnitsOutstanding>
      <approxSaleDate>05/08/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/06/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>9254</amountOfSecuritiesAcquired>
      <paymentDate>02/06/2019</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/08/2023</noticeDate>
      <signature>/s/ Carmen Zamores as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Pagano Robert J Jr</signature>
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144
0001299653
XXXXXXXX
LIVE
0000795403
WATTS WATER TECHNOLOGIES INC
001-11499
815 CHESTNUT ST
NORTH ANDOVER
MA
01845
9786881811
Pagano Robert J Jr
Officer
Common
FIDELITY BROKERAGE SERVICES LLC
245 SUMMER STREET
Boston
MA
02110
9254
1607142.00
27414400
05/08/2023
NYSE
Common
02/06/2019
Stock Award
Issuer
N
9254
02/06/2019
Compensation
Y
05/08/2023
/s/ Carmen Zamores as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Pagano Robert J Jr