<SEC-DOCUMENT>0001017918-24-000073.txt : 20241114
<SEC-HEADER>0001017918-24-000073.hdr.sgml : 20241114
<ACCEPTANCE-DATETIME>20241114100511
ACCESSION NUMBER:		0001017918-24-000073
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20241114

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GARTNER INC
		CENTRAL INDEX KEY:			0000749251
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT SERVICES [8741]
		ORGANIZATION NAME:           	07 Trade & Services
		IRS NUMBER:				043099750
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-44921
		FILM NUMBER:		241458079

	BUSINESS ADDRESS:	
		STREET 1:		56 TOP GALLANT RD
		STREET 2:		P O BOX 10212
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06904-2212
		BUSINESS PHONE:		2039640096

	MAIL ADDRESS:	
		STREET 1:		56 TOP GALLANT RD
		STREET 2:		P O BOX 10212
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06904-2212

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GARTNER GROUP INC
		DATE OF NAME CHANGE:	19930823

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAMCO INC /NY/
		CENTRAL INDEX KEY:			0001017918
		ORGANIZATION NAME:           	
		IRS NUMBER:				133390015
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0228

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		767 FIFTH AVENUE
		STREET 2:		49TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10153
		BUSINESS PHONE:		2125832000

	MAIL ADDRESS:	
		STREET 1:		767 FIFTH AVENUE
		STREET 2:		49TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10153
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001017918-08-000046</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001017918</cik>
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  <formData>
    <coverPageHeader>
      <amendmentNo>20</amendmentNo>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>09/30/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000749251</issuerCik>
        <issuerName>Gartner, Inc.</issuerName>
        <issuerCusip>366651107</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <common:street1>56 Top Gallant Rd</common:street1>
          <common:street2>PO Box 10212</common:street2>
          <common:city>Stamford</common:city>
          <common:stateOrCountry>CT</common:stateOrCountry>
          <common:zipCode>06902</common:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
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      <reportingPersonName>BAMCO INC /NY/</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>NY</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0</soleVotingPower>
        <sharedVotingPower>3716656</sharedVotingPower>
        <soleDispositivePower>0</soleDispositivePower>
        <sharedDispositivePower>3801806</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>3801806</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>4.93</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Baron Capital Group, Inc.</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>NY</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0</soleVotingPower>
        <sharedVotingPower>3937234</sharedVotingPower>
        <soleDispositivePower>0</soleDispositivePower>
        <sharedDispositivePower>4022384</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>4022384</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>5.22</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
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    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Baron Capital Management, Inc.</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>NY</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0</soleVotingPower>
        <sharedVotingPower>220578</sharedVotingPower>
        <soleDispositivePower>0</soleDispositivePower>
        <sharedDispositivePower>220578</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>220578</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>0.29</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
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    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Ronald Baron</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>NY</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0</soleVotingPower>
        <sharedVotingPower>3937234</sharedVotingPower>
        <soleDispositivePower>0</soleDispositivePower>
        <sharedDispositivePower>4022384</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>4022384</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>5.22</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Gartner, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>56 Top Gallant Rd, PO Box 10212, Stamford, CT 06902</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Baron Capital Group, Inc. ("BCG"),
BAMCO, Inc. ("BAMCO"),
Baron Capital Management, Inc. ("BCM"),
Ronald Baron</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>767 Fifth Avenue, 49th Floor,
New York, NY 10153</principalBusinessOfficeOrResidenceAddress>
        <citizenship>BCG, BAMCO and BCM are New York corporations. Ronald Baron is a citizen of the United States.</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
        <typeOfPersonFiling>HC</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>4,022,384</amountBeneficiallyOwned>
        <classPercent>5.22</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>0</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>3,937,234</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>0</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>4,022,384</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>The advisory clients of BAMCO and BCM have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Issuer's common stock in their accounts. To the best of the Filing Persons' knowledge, no such person has such interest relating to more than 5% of the outstanding class of securities.</ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
      </item6>
      <item7>
        <notApplicableFlag>N</notApplicableFlag>
        <subsidiaryIdentificationAndClassification>BAMCO and BCM are subsidiaries of BCG. Ronald Baron owns a controlling interest in BCG.</subsidiaryIdentificationAndClassification>
      </item7>
      <item8>
        <notApplicableFlag>N</notApplicableFlag>
        <identificationAndClassificationOfGroupMembers>Please see Item 3.</identificationAndClassificationOfGroupMembers>
      </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>BAMCO INC /NY/</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Ronald Baron</signature>
        <title>Chairman and CEO</title>
        <date>11/14/2024</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Baron Capital Group, Inc.</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Ronald Baron</signature>
        <title>Chairman and CEO</title>
        <date>11/14/2024</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Baron Capital Management, Inc.</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Ronald Baron</signature>
        <title>Chairman and CEO</title>
        <date>11/14/2024</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Ronald Baron</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Ronald Baron</signature>
        <title>Individually</title>
        <date>11/14/2024</date>
      </signatureDetails>
    </signatureInformation>
    <signatureComments>Attention: Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001)</signatureComments>
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</DOCUMENT>
</SEC-DOCUMENT>
