<SEC-DOCUMENT>0001288847-25-000042.txt : 20250304
<SEC-HEADER>0001288847-25-000042.hdr.sgml : 20250304
<ACCEPTANCE-DATETIME>20250304195822
ACCESSION NUMBER:		0001288847-25-000042
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250304
DATE AS OF CHANGE:		20250304

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:		25707983

	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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          <ccc>XXXXXXXX</ccc>
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    <issuerInfo>
      <issuerCik>0001288847</issuerCik>
      <issuerName>Five9, Inc</issuerName>
      <secFileNumber>001-36383</secFileNumber>
      <issuerAddress>
        <com:street1>3001Bishop Drive</com:street1>
        <com:street2>Suite 350</com:street2>
        <com:city>San Ramon</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94583</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>925-822-9539</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Barry Zwarenstein</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Morgan Stanley Smith Barney LLC</name>
        <address>
          <com:street1>Executive Financial Services</com:street1>
          <com:street2>1 New York Plaza 8th Floor</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10004</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>2468</noOfUnitsSold>
      <aggregateMarketValue>82020.94</aggregateMarketValue>
      <noOfUnitsOutstanding>76243052</noOfUnitsOutstanding>
      <approxSaleDate>03/04/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/03/2025</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2468</amountOfSecuritiesAcquired>
      <paymentDate>03/03/2025</paymentDate>
      <natureOfPayment>Not Applicable</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>03/04/2025</noticeDate>
      <signature>Barry Zwarenstein</signature>
    </noticeSignature>
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