<SEC-DOCUMENT>0001968582-24-000807.txt : 20240910
<SEC-HEADER>0001968582-24-000807.hdr.sgml : 20240910
<ACCEPTANCE-DATETIME>20240910162238
ACCESSION NUMBER:		0001968582-24-000807
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240910
DATE AS OF CHANGE:		20240910

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Five9, Inc.
		CENTRAL INDEX KEY:			0001288847
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				943394123
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-36383
		FILM NUMBER:		241290345

	BUSINESS ADDRESS:	
		STREET 1:		3001 BISHOP DRIVE
		STREET 2:		SUITE 350
		CITY:			SAN RAMON
		STATE:			CA
		ZIP:			94583
		BUSINESS PHONE:		9252012000

	MAIL ADDRESS:	
		STREET 1:		3001 BISHOP DRIVE
		STREET 2:		SUITE 350
		CITY:			SAN RAMON
		STATE:			CA
		ZIP:			94583

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Five 9 Inc
		DATE OF NAME CHANGE:	20040428

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ZWARENSTEIN BARRY
		CENTRAL INDEX KEY:			0001227348
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O IOMEGA CORP
		STREET 2:		4435 EASTGATE MALL 3RD FLOOR
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001227348</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
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      <liveTestFlag>LIVE</liveTestFlag>



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  <formData>
    <issuerInfo>
      <issuerCik>0001288847</issuerCik>
      <issuerName>Five9, Inc.</issuerName>
      <secFileNumber>001-36383</secFileNumber>
      <issuerAddress>
        <com:street1>3001 Bishop Drive, Suite 350</com:street1>
        <com:city>San Ramon</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94583</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>925-201-2000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Barry Zwarenstein</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>J.P. Morgan Securities LLC</name>
        <address>
          <com:street1>390 Madison Avenue</com:street1>
          <com:street2>6th Floor</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10017</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>4408</noOfUnitsSold>
      <aggregateMarketValue>122763</aggregateMarketValue>
      <noOfUnitsOutstanding>74736098</noOfUnitsOutstanding>
      <approxSaleDate>09/10/2024</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>09/03/2024</acquiredDate>
      <natureOfAcquisitionTransaction>RSU Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4408</amountOfSecuritiesAcquired>
      <paymentDate>09/03/2024</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Barry Zwarenstein</name>
        <address>
          <com:street1>C/o Five9, Inc.</com:street1>
          <com:street2>3001 Bishop Drive, Suite 350</com:street2>
          <com:city>San Ramon</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94583</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>06/12/2024</saleDate>
      <amountOfSecuritiesSold>1115</amountOfSecuritiesSold>
      <grossProceeds>50223</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Barry Zwarenstein and Mahbobeh Hirmand Trust</name>
        <address>
          <com:street1>C/o Five9, Inc.</com:street1>
          <com:street2>3001 Bishop Drive, Suite 350</com:street2>
          <com:city>San Ramon</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94583</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>06/12/2024</saleDate>
      <amountOfSecuritiesSold>4241</amountOfSecuritiesSold>
      <grossProceeds>191014</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Barry Zwarenstein and Mahbobeh Hirmand Trust</name>
        <address>
          <com:street1>C/o Five9, Inc.</com:street1>
          <com:street2>3001 Bishop Drive, Suite 350</com:street2>
          <com:city>San Ramon</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94583</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>07/16/2024</saleDate>
      <amountOfSecuritiesSold>6207</amountOfSecuritiesSold>
      <grossProceeds>279386</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>09/10/2024</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>03/04/2024</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Barry Zwarenstein</signature>
    </noticeSignature>
  </formData>
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</SEC-DOCUMENT>
