<SEC-DOCUMENT>0000749251-26-000160-index.html : 20260415 <SEC-HEADER>0000749251-26-000160.hdr.sgml : 20260415 <ACCEPTANCE-DATETIME>20260415160819 ACCESSION NUMBER: 0000749251-26-000160 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20260415 DATE AS OF CHANGE: 20260415 FILER: COMPANY DATA: COMPANY CONFORMED NAME: GARTNER INC CENTRAL INDEX KEY: 0000749251 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-MANAGEMENT SERVICES [8741] ORGANIZATION NAME: 07 Trade & Services EIN: 043099750 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-14443 FILM NUMBER: 26864235 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 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>a2026gartnerincdefa14a.htm <DESCRIPTION>DEFA 14A <TEXT> Document 1 - file: a2026gartnerincdefa14a.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>image1.jpg <TEXT> Document 3 - file: image1.jpg
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