Gartner Inc.

IT·NYSE·$157.89Share Price as of 11/2·$11BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/04/26 10-QQ1 ended 03/31/2605/05/26 10-KFY 202502/12/26 10-QQ3 ended 09/30/2511/04/25 10-QQ2 ended 06/30/2508/05/25

Disclosures

8-KCurrent report10/08/26 8-KCurrent report08/04/26 8-KCurrent report06/02/26 8-KCurrent report05/05/26 8-KCurrent report02/03/26

Prospectuses and Registrations

424B5Prospectus supplement11/17/25 FWPFree writing prospectus11/14/25 424B5Prospectus supplement11/13/25 S-3ASRAutomatic shelf registration11/12/25 S-8Registration of securities for employees08/01/23

Proxies

DEF 14ADefinitive proxy04/15/26 DEFA14AAdditional proxy materials04/15/26 DEF 14ADefinitive proxy04/15/25 DEFA14AAdditional proxy materials04/15/25 DEF 14ADefinitive proxy04/16/24

Ownership

Form 4Insider transaction10/30/26 Form 4Insider transaction10/19/26 Form 4Insider transaction10/05/26 Form 4Insider transaction10/05/26 Form 4Insider transaction10/05/26

Other

ARSAnnual report to shareholders04/15/26 UPLOADLetter from the SEC06/11/25 CORRESPCorrespondence with the SEC06/03/25 UPLOADLetter from the SEC05/21/25 ARSAnnual report to shareholders04/15/25