IT / Gartner, Inc. - Документы SEC, Годовой отчет, Доверенное заявление

Гартнер, Инк.
US ˙ NYSE ˙ US3666511072

Основная статистика
LEI PP55B5R38BFB8O8HH686
CIK 749251
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Gartner, Inc.
SEC Filings (Chronological Order)
На этой странице представлен полный хронологический список документов SEC, за исключением документов о собственности, которые мы предоставляем в других местах.
August 5, 2025 EX-99.1

Gartner Reports Second Quarter 2025 Financial Results Contract Value $5.0 billion, +4.9% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2025 Financial Results Contract Value $5.0 billion, +4.9% YoY FX Neutral SECOND QUARTER 2025 HIGHLIGHTS •Revenues: $1.7 billion, +5.7% as reported; +4.6% FX neutral. •Net income: $241 million, +4.9% as reported; adjusted EBITDA: $443 million, +6.6% as reported, +5.0% FX neutral. •Diluted EPS: $3.11, +6.1%; adjusted EPS: $3.53, +9.6%

August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

August 5, 2025 8-K

FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 31, 2025 GARTNER, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 31, 2025 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

June 3, 2025 CORRESP

June 3, 2025

June 3, 2025 VIA EDGAR Abe Friedman Theresa Brilliant U.S. Securities and Exchange Commission Division of Corporation Finance Office of Trade & Services 100 F. Street, N.E. Washington, D.C. 20549 Re: Gartner, Inc. Form 10-K for Fiscal Year Ended December 31, 2024 Form 8-K Dated May 6, 2025 File No. 001-14443 Dear Mr. Friedman and Ms. Brilliant: On behalf of Gartner, Inc. (“Gartner,” the “Company,”

June 3, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 29, 2025 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

May 6, 2025 EX-99.1

Gartner Reports First Quarter 2025 Financial Results Contract Value $5.1 billion, +6.7% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2025 Financial Results Contract Value $5.1 billion, +6.7% YoY FX Neutral FIRST QUARTER 2025 HIGHLIGHTS •Revenues: $1.5 billion, +4.2% as reported; +5.7% FX neutral. •Net income: $211 million, +0.2% as reported; adjusted EBITDA: $385 million, +0.7% as reported, +2.9% FX neutral. •Diluted EPS: $2.71, +1.5%; adjusted EPS: $2.98, +1.7%.

May 6, 2025 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 6, 2025 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IR

April 15, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Proxy State

April 15, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

February 13, 2025 EX-10.17

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

EXHIBIT 10.16 GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) the number of performance stock units indicated in the notice of grant (a “PSU” or the “PSUs”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”) (this type of Award is referred to as Performance Shares under t

February 13, 2025 EX-19.1

Business & Personal Conduct

EXHIBIT 19 Business & Personal Conduct Insider Trading Policy Geographic Coverage Global Document Owner EVP, General Counsel Last Reviewed October 2024 1.

February 13, 2025 EX-10.16

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

EXHIBIT 10.15 GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) a stock appreciation right (the “SAR”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 6

February 13, 2025 EX-21.1

SUBSIDIARIES OF THE REGISTRANT as of December 31, 2024

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT as of December 31, 2024 Entity Name State/Country 1422722 Ontario Inc. Ontario, Canada Burton Group, Inc. Utah, United States Capterra Inc. Delaware, United States CEB (Barbados) SRL Barbados CEB Global Holdings Limited United Kingdom CEB Global Limited United Kingdom CEB Holdings UK 1 Limited United Kingdom CEB Holdings UK 2 Limited United Kingdom CEB I

February 13, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 4, 2025 EX-99.1

Gartner Reports Fourth Quarter 2024 Financial Results Contract Value $5.3 billion, +8% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2024 Financial Results Contract Value $5.3 billion, +8% YoY FX Neutral FOURTH QUARTER 2024 HIGHLIGHTS •Revenues: $1.7 billion, +8% as reported and FX neutral. •Net income: $399 million, +91%; adjusted EBITDA: $417 million, +8% as reported, +9% FX neutral. •Diluted EPS: $5.11, +94%; adjusted EPS: $5.45, +79%. •Operating cash flow: $3

February 4, 2025 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 4, 2025 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

January 7, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) December 31, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

December 3, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) December 2, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

November 5, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 5, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

November 5, 2024 EX-99.1

Gartner Reports Third Quarter 2024 Financial Results Contract Value $5.0 billion, +7.3% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2024 Financial Results Contract Value $5.0 billion, +7.3% YoY FX Neutral THIRD QUARTER 2024 HIGHLIGHTS •Revenues: $1.5 billion, +5.4% as reported; +5.6% FX neutral. •Net income: $415 million, +130.6% as reported; adjusted EBITDA: $340 million, +2.1% as reported, +2.8% FX neutral. •Diluted EPS: $5.32, +135.4%; adjusted EPS: $2.50, -2.

November 5, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

November 5, 2024 EX-3.2

By-laws of Gartner, Inc. (as amended and restated through October 31, 2024).

EXHIBIT 3.2 BY-LAWS OF GARTNER, INC. A Delaware Corporation (as amended and restated through October 31, 2024) ARTICLE I OFFICES Section 1. Registered Office. The registered office of the corporation in the State of Delaware shall be located in the City of Wilmington, County of New Castle, at such location as the Board of Directors of the corporation (the “Board of Directors”) may determine from t

July 30, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 25, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

July 30, 2024 EX-99.1

Gartner Reports Second Quarter 2024 Financial Results Contract Value $4.9 billion, +7.4% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2024 Financial Results Contract Value $4.9 billion, +7.4% YoY FX Neutral SECOND QUARTER 2024 HIGHLIGHTS •Revenues: $1.6 billion, +6.1% as reported; +6.9% FX neutral. •Net income: $230 million, +15.9% as reported; adjusted EBITDA: $416 million, +8.2% as reported, +9.8% FX neutral. •Diluted EPS: $2.93, +18.1%; adjusted EPS: $3.22, +13

July 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

July 30, 2024 EX-3.2

By-laws of Gartner, Inc. (as amended and restated through July 25, 2024).

Exhibit 3.2 BY-LAWS OF GARTNER, INC. A Delaware Corporation (as amended and restated through July 25, 2024) ARTICLE I OFFICES Section 1. Registered Office. The registered office of the corporation in the State of Delaware shall be located in the City of Wilmington, County of New Castle, at such location as the Board of Directors may determine from time to time. Section 2. Other Offices. The corpor

July 1, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 30, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

July 1, 2024 EX-10.1

Second Amendment to Employment Agreement between Eugene A. Hall and the Corporation effective as of July 1, 2024.

EXHIBIT 10.1 SECOND AMENDMENT TO EMPLOYMENT AGREEMENT THIS SECOND AMENDMENT TO THE EMPLOYMENT AGREEMENT (this “Amendment”) is made effective as of July 1, 2024 (the “Effective Date”) by and between Eugene A. Hall (the “Executive”) and Gartner, Inc., a Delaware corporation (the “Company”). WHEREAS, the Company and the Executive are parties to that certain Second Amended and Restated Employment Agre

June 11, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 6, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

April 30, 2024 EX-10.2

2011 Employee Stock Purchase Plan, as amended and restated, as of May 1, 2024.

GARTNER, INC. 2011 EMPLOYEE STOCK PURCHASE PLAN Amended and Restated as of May 1, 2024 The following constitute the provisions of the 2011 Employee Stock Purchase Plan of Gartner, Inc. 1.PURPOSE. The purpose of the Plan is to provide employees of the Company and its Designated Subsidiaries with an opportunity to purchase Common Stock of the Company through accumulated payroll deductions. It is the

April 30, 2024 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) April 30, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

April 30, 2024 EX-99.1

Gartner Reports First Quarter 2024 Financial Results Contract Value $4.9 billion, +6.9% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2024 Financial Results Contract Value $4.9 billion, +6.9% YoY FX Neutral FIRST QUARTER 2024 HIGHLIGHTS •Revenues: $1.5 billion, +4.5% as reported; +4.6% FX neutral. •Net income: $211 million, -28.8% as reported; adjusted EBITDA: $382 million, +0.8% as reported, +1.7% FX neutral. •Diluted EPS: $2.67, -27.4%; adjusted EPS: $2.93, +1.7%

April 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

April 16, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Proxy State

April 16, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

April 1, 2024 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 26, 2024 GARTNER, INC.

April 1, 2024 EX-10.1

Credit Amendment, dated as of March 26, 2024, among Gartner, Inc., the lender party thereto and JPMorgan Chase Bank, N.A., as administrative agent.

Exhibit 10.1 EXECUTION VERSION $1,000,000,000 CREDIT AGREEMENT among GARTNER, INC., as Borrower, The Several Lenders from Time to Time Parties Hereto, and JPMORGAN CHASE BANK, N.A., as Administrative Agent Dated as of March 26, 2024 JPMORGAN CHASE BANK, N.A., BOFA SECURITIES, INC., CITIBANK, N.A., TD SECURITIES (USA) LLC, BNP PARIBAS SECURITIES CORP., CITIZENS BANK, N.A., HSBC BANK USA, NATIONAL A

February 15, 2024 EX-10.13

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) the number of performance stock units indicated in the notice of grant (a “PSU” or the “PSUs”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”) (this type of Award is referred to as Performance Shares under the Plan). The

February 15, 2024 EX-10.10

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) a stock appreciation right (the “SAR”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 8, 2024 (the “G

February 15, 2024 EX-10.14

GARTNER, INC. LONG-TERM INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT This Award Agreement contains important information concerning your Restricted Stock Unit grant, including information on vesting and termination in Paragraphs 3 through 5. Capitalized terms used and not defined in this Award Agreement shall have the meaning set forth in the Plan. ACCORDINGLY, PLEASE BE SURE TO READ ALL O

February 15, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 15, 2024 EX-10.16

Enhanced Executive Rewards Policy Revised January 1, 2023

Enhanced Executive Rewards Policy Revised January 1, 2023 As a member of Gartner’s Operating Committee employed in the United States, you play a vital role in the overall success of our Company.

February 15, 2024 EX-21.1

SUBSIDIARIES OF THE REGISTRANT as of December 31, 2023

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT as of December 31, 2023 Entity Name State/Country 1422722 Ontario Inc. Ontario, Canada Burton Group, Inc. Utah, United States Capterra Inc. Delaware, United States CEB (Barbados) SRL Barbados CEB Global Holdings Limited United Kingdom CEB Global Limited United Kingdom CEB Holdings UK 1 Limited United Kingdom CEB Holdings UK 2 Limited United Kingdom CEB I

February 15, 2024 EX-97

GARTNER, INC. COMPENSATION RECOUPMENT (CLAWBACK) POLICY

GARTNER, INC. COMPENSATION RECOUPMENT (CLAWBACK) POLICY Recoupment of Incentive-Based Compensation It is the policy of Gartner, Inc. (the “Company”) that, in the event the Company is required to prepare an accounting restatement of the Company’s financial statements due to material non-compliance with any financial reporting requirement under the federal securities laws (including any such correct

February 14, 2024 SC 13G/A

IT / Gartner, Inc. / BAMCO INC /NY/ - NONE Passive Investment

SC 13G/A 1 doc1.htm NONE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 19)* Gartner, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursu

February 13, 2024 SC 13G/A

IT / Gartner, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0996-gartnerinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: Gartner Inc Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pu

February 6, 2024 EX-99.1

Gartner Reports Fourth Quarter 2023 Financial Results Contract Value $4.8 billion, +8% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2023 Financial Results Contract Value $4.8 billion, +8% YoY FX Neutral FOURTH QUARTER 2023 HIGHLIGHTS •Revenues: $1.6 billion, +5% as reported, +4% FX neutral. •Net income: $209 million, -19%; adjusted EBITDA: $386 million, -8% as reported, -9% FX neutral. •Diluted EPS: $2.64, -18%; adjusted EPS: $3.04, -18%. •Operating cash flow: $

February 6, 2024 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 6, 2024 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

December 11, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) December 8, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

November 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

November 3, 2023 EX-99.1

Gartner Reports Third Quarter 2023 Financial Results Contract Value $4.7 billion, +8.1% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2023 Financial Results Contract Value $4.7 billion, +8.1% YoY FX Neutral THIRD QUARTER 2023 HIGHLIGHTS •Revenues: $1.4 billion, +5.8% as reported; +4.9% FX neutral. •Net income: $180 million, +3.7% as reported; adjusted EBITDA: $333 million, +0.6% as reported, +0.1% FX neutral. •Diluted EPS: $2.26, +4.1%; adjusted EPS: $2.56, +6.2%.

November 3, 2023 8-K

FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) October 31, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) October 31, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 2, 2023 CORRESP

August 2, 2023

August 2, 2023 VIA EDGAR Aamira Chaudhry Doug Jones U.S. Securities and Exchange Commission Division of Corporation Finance Office of Trade & Services 100 F. Street, N.E. Washington, D.C. 20549 Re: Gartner, Inc. Form 10-K for the Year Ended December 31, 2022 Filed on February 16, 2023 File No. 001-14443 Dear Ms. Chaudhry and Mr. Jones: On behalf of Gartner, Inc. (“Gartner,” the “Company,” “we,” or

August 1, 2023 S-8

As filed with the Securities and Exchange Commission on August 1, 2023

As filed with the Securities and Exchange Commission on August 1, 2023 Registration No.

August 1, 2023 EX-FILING FEES

Filing Fee Table.

Exhibit 107.1 Calculation of Filing Fee Table FORM S-8 Registration Statement Under the Securities Act of 1933 (Form Type) GARTNER, INC. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of

August 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

August 1, 2023 EX-10.3

Executive Performance Bonus Plan

GARTNER, INC. EXECUTIVE PERFORMANCE BONUS PLAN (Effective January 1, 2024) TABLE OF CONTENTS Page ARTICLE I BACKGROUND, PURPOSE AND DURATION 1 Section 1.1 Effective Date. 1 Section 1.2 Purpose of the Plan. 1 ARTICLE II DEFINITIONS 1 ARTICLE III SELECTION OF PARTICIPANTS AND DETERMINATION OF AWARDS 4 Section 3.1 Selection of Participants. 4 Section 3.2 Determination of Performance 4 Section 3.3 Det

August 1, 2023 EX-99.1

Gartner Reports Second Quarter 2023 Financial Results Total Contract Value $4.6 billion, +8.9% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2023 Financial Results Total Contract Value $4.6 billion, +8.9% YoY FX Neutral SECOND QUARTER 2023 HIGHLIGHTS •Revenues: $1.5 billion, +9.2% as reported; +10.0% FX neutral. •Net income: $198 million, -3.4% as reported; adjusted EBITDA: $384 million, -1.2% as reported, -0.3% FX neutral. •Diluted EPS: $2.48, -2.0%; adjusted EPS: $2.85

August 1, 2023 8-K/A

FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 1, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 1, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 1, 2023 EX-10.1

Amendment No. 1, dated as of May 19, 2023, by and between Gartner, Inc. and JPMorgan Chase Bank, N.A. as administrative agent and as collateral agent.

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 1 THIS AMENDMENT NO. 1 (this “Agreement”), dated as of May 19, 2023, is entered into by GARTNER, INC., a Delaware corporation (the “Borrower”), and JPMORGAN CHASE BANK, N.A., as administrative agent (in such capacity, the “Administrative Agent”) and as collateral agent. RECITALS WHEREAS, the Borrower, the lenders from time to time party thereto (the “Le

August 1, 2023 8-K

FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 1, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 1, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

June 14, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 8, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

June 2, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 1, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 12, 2023 CORRESP

May 12, 2023

May 12, 2023 VIA EDGAR Aamira Chaudhry Doug Jones U.S. Securities and Exchange Commission Division of Corporation Finance Office of Trade & Services 100 F. Street, N.E. Washington, D.C. 20549 Re: Gartner, Inc. Form 10-K for the Year Ended December 31, 2022 Filed on February 16, 2023 File No. 001-14443 Dear Ms. Chaudhry and Mr. Jones: On behalf of Gartner, Inc. (“Gartner,” the “Company,” “we,” or “

May 2, 2023 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 2, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IR

May 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

May 2, 2023 EX-99.1

Gartner Reports First Quarter 2023 Financial Results Total Contract Value $4.5 billion, +10.4% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2023 Financial Results Total Contract Value $4.5 billion, +10.4% YoY FX Neutral FIRST QUARTER 2023 HIGHLIGHTS •Revenues: $1.4 billion, +11.6% as reported; +14.3% FX neutral. •Net income: $296 million, +71.5% as reported; adjusted EBITDA: $379 million, +15.3% as reported, +19.1% FX neutral. •Diluted EPS: $3.68, +76.9%; adjusted EPS: $

April 17, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy State

April 17, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive Proxy State

February 16, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 16, 2023 EX-21.1

SUBSIDIARIES OF THE REGISTRANT

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT Entity Name State/Country 1422722 Ontario Inc. Ontario, Canada Burton Group, Inc. Utah, United States Capterra Inc. Delaware, United States CEB (Barbados) SRL Barbados CEB Global Holdings Limited United Kingdom CEB Global Limited United Kingdom CEB Holdings UK 1 Limited United Kingdom CEB Holdings UK 2 Limited United Kingdom CEB Inc. Delaware, United Sta

February 16, 2023 EX-10.15

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) a stock appreciation right (the “SAR”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 9, 2023 (the “G

February 16, 2023 EX-10.14

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) the number of performance stock units indicated in the notice of grant (a “PSU” or the “PSUs”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”) (this type of Award is referred to as Performance Shares under the Plan). The

February 14, 2023 SC 13G/A

IT / Gartner Inc / BAMCO INC /NY/ - NONE Passive Investment

SC 13G/A 1 doc1.htm NONE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 18)* Gartner, Inc. (Name of Issuer) Common (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

February 10, 2023 SC 13G/A

IT / Gartner Inc / POLEN CAPITAL MANAGEMENT LLC Passive Investment

SC 13G/A 1 polen-it123122a3.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* Gartner, Inc. (Name of Issuer) Common Stock, $0.0005 par value per share (Title of Class of Securities) 366651107 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropria

February 9, 2023 SC 13G/A

IT / Gartner Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0966-gartnerinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Gartner Inc. Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule p

February 7, 2023 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 2, 2023 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

February 7, 2023 EX-99.1

Gartner Reports Fourth Quarter 2022 Financial Results Contract Value $4.7 billion, +12% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2022 Financial Results Contract Value $4.7 billion, +12% YoY FX Neutral FOURTH QUARTER 2022 HIGHLIGHTS •Revenues: $1.5 billion, +15% as reported; +20% FX neutral. •Net income: $257 million; adjusted EBITDA: $421 million, +37% as reported, +44% FX neutral. •Diluted EPS: $3.21, +28%; adjusted EPS: $3.70, +24%. •Operating cash flow: $2

November 1, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

November 1, 2022 EX-99.1

Gartner Reports Third Quarter 2022 Financial Results Total Contract Value $4.5 billion, +14.5% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2022 Financial Results Total Contract Value $4.5 billion, +14.5% YoY FX Neutral THIRD QUARTER 2022 HIGHLIGHTS ?Revenues: $1.3 billion, +15.2% as reported; +20.4% FX neutral. ?Net income: $174 million; adjusted EBITDA: $332 million, +8.5% as reported, +14.9% FX neutral. ?Diluted EPS: $2.17, +23.3%; adjusted EPS: $2.41, +18.7%. ?Operat

November 1, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 1, 2022 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

August 2, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 2, 2022 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

August 2, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

August 2, 2022 EX-10.1

Separation Agreement and Release of Claims, dated July 13, 2022, between the Company and Jules Kaufman

SEPARATION AGREEMENT AND RELEASE OF CLAIMS THIS SEPARATION AGREEMENT AND RELEASE OF CLAIMS (the ?Agreement?), provided as of July 13, 2022, is made between Gartner, Inc.

August 2, 2022 EX-99.1

Gartner Reports Second Quarter 2022 Financial Results Total Contract Value $4.3 billion, +15.4% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2022 Financial Results Total Contract Value $4.3 billion, +15.4% YoY FX Neutral SECOND QUARTER 2022 HIGHLIGHTS ?Revenues: $1.4 billion, +17.9% as reported; +21.8% FX neutral. ?Net income: $205 million; adjusted EBITDA: $389 million, +9.5% as reported, +14.2% FX neutral. ?Diluted EPS: $2.53, -19.2%; adjusted EPS: $2.85, +27.2%. ?Oper

July 15, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K 1 it-07112022x8xk.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 11, 2022 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporati

June 6, 2022 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 2, 2022 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 3, 2022 EX-99.1

Gartner Reports First Quarter 2022 Financial Results Total Contract Value $4.2 billion, +16.3% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2022 Financial Results Total Contract Value $4.2 billion, +16.3% YoY FX Neutral FIRST QUARTER 2022 HIGHLIGHTS ?Revenues: $1.3 billion, +14.4% as reported; +16.4% FX neutral. ?Net income: $173 million; adjusted EBITDA: $329 million, +2.6% as reported, +4.7% FX neutral. ?Diluted EPS: $2.08, +13.0%; adjusted EPS: $2.33, +16.5%. ?Operati

May 3, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) April 28, 2022 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

May 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

April 18, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A 1 a2022proxystatementdef14a.htm DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitt

April 18, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFA14A 1 a2022gartnerincdefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, For Use of the Commission only (as permitted

February 23, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 23, 2022 EX-10.12

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the ?Company?) hereby grants you (or the ?Grantee?) a stock appreciation right (the ?SAR?) under the Company?s Long-Term Incentive Plan, as amended from time to time (the ?Plan?), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 9, 2022 (the ?G

February 23, 2022 EX-4.6

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2019, Gartner, Inc.

February 23, 2022 EX-21.1

SUBSIDIARIES OF THE REGISTRANT

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT Entity Name State/Country 1422722 Ontario Inc. Ontario, Canada Burton Group, Inc. Utah, United States Capterra Inc. Delaware, United States CEB (Barbados) SRL Barbados CEB Global Holdings Limited United Kingdom CEB Global Limited United Kingdom CEB Holdings UK 1 Limited United Kingdom CEB Holdings UK 2 Limited United Kingdom CEB Inc. Delaware, United Sta

February 23, 2022 EX-10.13

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the ?Company?) hereby grants you (or the ?Grantee?) the number of performance stock units indicated in the notice of grant (a ?PSU? or the ?PSUs?) under the Company?s Long-Term Incentive Plan, as amended from time to time (the ?Plan?) (this type of Award is referred to as Performance Shares under the Plan). The

February 14, 2022 SC 13G/A

IT / Gartner Inc / GENERATION INVESTMENT MANAGEMENT LLP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 14, 2022 SC 13G/A

IT / Gartner Inc / BAMCO INC /NY/ - NONE Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 17)* Gartner, Inc. (Name of Issuer) Common (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is f

February 10, 2022 SC 13G/A

IT / Gartner Inc / POLEN CAPITAL MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 10, 2022 SC 13G/A

IT / Gartner Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Gartner Inc. Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

February 8, 2022 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 3, 2022 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

February 8, 2022 EX-99.1

Gartner Reports Fourth Quarter 2021 Financial Results Total Contract Value $4.2 billion, +16% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2021 Financial Results Total Contract Value $4.2 billion, +16% YoY FX Neutral FOURTH QUARTER 2021 HIGHLIGHTS ?Revenues: $1.3 billion, +17% as reported; +18% FX neutral. ?Net income: $209 million; adjusted EBITDA: $307 million, +25% as reported, +26% FX neutral. ?Diluted EPS: $2.50, +88%; adjusted EPS: $2.99, +88%. ?Operating cash fl

November 2, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 2, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

November 2, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

November 2, 2021 EX-99.1

Gartner Reports Third Quarter 2021 Financial Results Total Contract Value $4.0 billion, +13.8% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2021 Financial Results Total Contract Value $4.0 billion, +13.8% YoY FX Neutral THIRD QUARTER 2021 HIGHLIGHTS ?Revenues: $1.2 billion, +16.3% as reported; +15.0% FX neutral. ?Net income: $149 million; adjusted EBITDA: $305 million, +82.3% as reported, +79.9% FX neutral. ?Diluted EPS: $1.76, +826.3%; adjusted EPS: $2.03, +123.1%. ?Ope

August 4, 2021 S-8

As filed with the Securities and Exchange Commission on August 4, 2021

S-8 1 gartner-formsx8august2021.htm S-8 As filed with the Securities and Exchange Commission on August 4, 2021 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or org

August 3, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 29, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

August 3, 2021 EX-99.1

Gartner Reports Second Quarter 2021 Financial Results Total Contract Value $3.8 billion, +10.7% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2021 Financial Results Total Contract Value $3.8 billion, +10.7% YoY FX Neutral SECOND QUARTER 2021 HIGHLIGHTS ?Revenues: $1.2 billion, +20.0% as reported; +15.9% FX neutral. ?Net income: $271 million; adjusted EBITDA: $355 million, +84.9% as reported, +75.4% FX neutral. ?Diluted EPS: $3.13, +413.1%; adjusted EPS: $2.24, +86.7%. ?Op

August 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

June 21, 2021 EX-4.1

Indenture (including form of Notes), dated as of June 18, 2021, among Gartner, Inc., the guarantors named therein and U.S. Bank National Association, as trustee, relating to the $600,000,000 aggregate principal amount of 3.625% Senior Notes due 2029.

Exhibit 4.1 EXECUTION VERSION GARTNER, INC. 3.625% SENIOR NOTES DUE 2029 INDENTURE Dated as of June 18, 2021 U.S. Bank National Association as Trustee TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.01. Definitions. 1 SECTION 1.02. Other Definitions. 19 SECTION 1.03. Concerning the Trust Indenture Act. 19 SECTION 1.04. Rules of Construction. 19 ARTICLE II THE

June 21, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2021 GARTNER, INC.

June 15, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2021 GARTNER, INC.

June 15, 2021 EX-99.1

Gartner Announces Intention to Offer $500 Million in Senior Notes

Exhibit 99.1 Gartner Announces Intention to Offer $500 Million in Senior Notes STAMFORD, Conn. ? June 15, 2021 - Gartner, Inc. (NYSE:IT) (?Gartner,? ?we? or ?our?) announced today that it has commenced an unregistered offering of $500 million in aggregate principal amount of Senior Notes due 2029 (the ?Notes?). Gartner intends to use the net proceeds from the offering of the Notes (i) to repay a p

June 8, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 3, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I

May 5, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) April 29, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

May 5, 2021 EX-10.1

Amendment to Employment Agreement between Eugene A. Hall and the Company dated as of April 29, 202

AMENDMENT TO EMPLOYMENT AGREEMENT THIS AMENDMENT TO THE EMPLOYMENT AGREEMENT (this ?Amendment?) is made and entered into as of April 29, 2021 (the ?Effective Date?) by and between Eugene A.

May 5, 2021 EX-3.1

By-laws of Gartner, Inc. (as amended through April 29, 2021).

BY-LAWS OF GARTNER, INC. A Delaware Corporation (as amended through April 29, 2021) ARTICLE I OFFICES Section 1. Registered Office. The registered office of the corporation in the State of Delaware shall be located in the City of Wilmington, County of New Castle, at such location as the Board of Directors may determine from time to time. Section 2. Other Offices. The corporation may also have offi

May 4, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

May 4, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) April 29, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number)

May 4, 2021 EX-99.1

Gartner Reports First Quarter 2021 Financial Results Total Contract Value $3.7 billion, +5.8% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2021 Financial Results Total Contract Value $3.7 billion, +5.8% YoY FX Neutral FIRST QUARTER 2021 HIGHLIGHTS ?Revenues: $1.1 billion, +8.4% as reported; +5.7% FX neutral. ?Net income: $164 million; adjusted EBITDA: $320 million, +50.0% as reported, +44.2% FX neutral. ?Diluted EPS: $1.84, +121.7%; adjusted EPS: $2.00, +66.7%. ?Operati

April 19, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

April 19, 2021 DEF 14A

Gartner, Inc. 2011 Employee Stock Purchase Plan, as amended and restated

DEF 14A 1 d122411ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as

February 24, 2021 EX-10.16

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the ?Company?) hereby grants you (or the ?Grantee?) the number of performance stock units indicated in the notice of grant (a ?PSU? or the ?PSUs?) under the Company?s Long-Term Incentive Plan, as amended from time to time (the ?Plan?) (this type of Award is referred to as Performance Shares under the Plan). The

February 24, 2021 EX-21.1

SUBSIDIARIES OF THE REGISTRANT

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT Entity Name State/Country 1422722 Ontario Inc. Ontario, Canada Burton Group, Inc. Utah, United States Capterra Inc. Delaware, United States CEB (Barbados) SRL Barbados CEB Global Holdings Limited United Kingdom CEB Global Limited United Kingdom CEB Holdings UK 1 Limited United Kingdom CEB Holdings UK 2 Limited United Kingdom CEB Inc. Delaware, United Sta

February 24, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 24, 2021 EX-10.15

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the ?Company?) hereby grants you (or the ?Grantee?) a stock appreciation right (the ?SAR?) under the Company?s Long-Term Incentive Plan, as amended from time to time (the ?Plan?), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 10, 2021 (the ?

February 16, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 16)* Gartner, Inc. (Name of Issuer) (Title of Class of Securities) (CUSIP Number) Calendar Year 2020 (Date o

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 16)* Gartner, Inc. (Name of Issuer) Common (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Gartner, Inc.

SC 13G/A 1 polen-it123120a1.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Gartner, Inc. (Name of Issuer) Common Stock, $0.0005 par value per share (Title of Class of Securities) 366651107 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropria

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Gartner Inc. Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

February 9, 2021 EX-99.1

Gartner Reports Fourth Quarter 2020 Financial Results Total Contract Value $3.6 billion, +4% YoY FX Neutral

EX-99.1 2 it-12312020xex991.htm EX-99.1 EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2020 Financial Results Total Contract Value $3.6 billion, +4% YoY FX Neutral FOURTH QUARTER 2020 HIGHLIGHTS •Revenues: $1.1 billion, -8% as reported; -9% FX neutral. •Net income: $120 million; adjusted EBITDA: $245 million, +13% as reported, +10% FX neutral. •Diluted EPS: $1.33, +77%; adjusted

February 9, 2021 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 4, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

February 9, 2021 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 3, 2021 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation) (Commission File Number

November 3, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

November 3, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 3, 2020 GARTNER, INC.

November 3, 2020 EX-99.1

Gartner Reports Third Quarter 2020 Financial Results Total Contract Value $3.4 billion, +5.3% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2020 Financial Results Total Contract Value $3.4 billion, +5.3% YoY FX Neutral THIRD QUARTER 2020 HIGHLIGHTS •Revenues: $995 million, -0.6%; -1.0% FX neutral. •Net income: $17 million; adjusted EBITDA: $168 million, +20.0%, +19.4% FX neutral. •Diluted EPS: $0.19, -58.7%; adjusted EPS: $0.91, +30.0%. •Operating cash flow: $244 million

September 28, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 28, 2020 GARTNER, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 28, 2020 GARTNER, INC.

September 28, 2020 EX-4.1

Indenture (including form of Notes), dated as of September 28, 2020, among Gartner, Inc., the guarantors named therein and U.S. Bank National Association, as trustee, relating to the $800,000,000 aggregate principal amount of 3.750% Senior Notes due 2030.

EX-4.1 Exhibit 4.1 GARTNER, INC. 3.750% SENIOR NOTES DUE 2030 INDENTURE Dated as of September 28, 2020 U.S. Bank National Association as Trustee TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.01. Definitions 1 SECTION 1.02. Other Definitions 19 SECTION 1.03. Concerning the Trust Indenture Act 19 SECTION 1.04. Rules of Construction 19 ARTICLE II THE NOTES SECT

September 28, 2020 EX-10.1

Amended and Restated Credit Amendment, dated as of September 28, 2020, among Gartner, Inc., the Lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent.

EX-10.1 Exhibit 10.1 $1,400,000,000 AMENDED AND RESTATED CREDIT AGREEMENT among GARTNER, INC., as Borrower, The Several Lenders from Time to Time Parties Hereto, BANK OF AMERICA, N.A., CITIZENS BANK, N.A., PNC CAPITAL MARKETS LLC, TD BANK, N.A., TRUIST SECURITIES, U.S. BANK NATIONAL ASSOCIATION, WELLS FARGO BANK, N.A., CAPITAL ONE, NATIONAL ASSOCIATION and CITIBANK, N.A. as Co-Syndication Agents H

September 28, 2020 EX-10.2

Amended and Restated Guarantee and Collateral Agreement, dated as of September 28, 2020, among Gartner, Inc. each subsidiary guarantor party thereto and JPMorgan Chase Bank, N.A.

EX-10.2 Exhibit 10.2 AMENDED & RESTATED GUARANTEE AND COLLATERAL AGREEMENT made by GARTNER, INC. and certain of its Subsidiaries in favor of JPMORGAN CHASE BANK, N.A., as Administrative Agent Dated as of September 28, 2020 TABLE OF CONTENTS SECTION 1. DEFINED TERMS 1 1.1 Definitions 1 1.2 Other Definitional Provisions 5 SECTION 2. GUARANTEE 5 2.1 Guarantee 5 2.2 Right of Contribution 6 2.3 No Subr

September 14, 2020 EX-99.1

Gartner Announces Intention to Offer $800 Million in Senior Notes

EX-99.1 Exhibit 99.1 Gartner Announces Intention to Offer $800 Million in Senior Notes STAMFORD, Conn. – September 14, 2020- Gartner, Inc. (NYSE:IT) (“Gartner,” “we” or “our”) announced today that it has commenced an unregistered offering of $800 million in aggregate principal amount of Senior Notes due 2030 (the “Notes”). Gartner intends to use the net proceeds from the offering of the Notes, tog

September 14, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 14, 2020 GARTNER, INC.

August 4, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 4, 2020 GARTNER, INC.

August 4, 2020 EX-99.1

Gartner Reports Second Quarter 2020 Financial Results Total Contract Value $3.4 billion, +7.0% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2020 Financial Results Total Contract Value $3.4 billion, +7.0% YoY FX Neutral SECOND QUARTER 2020 HIGHLIGHTS •Revenues: $1.0 billion, -9.1%; -7.6% FX neutral. •Net income: $55 million; adjusted EBITDA: $192 million, +4.0%, +6.0% FX neutral. •Diluted EPS: $0.61, -46.0%; adjusted EPS: $1.20, -17.2%. •Operating cash flow: $399 million

August 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

July 2, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 1, 2020 GARTNER, INC.

June 23, 2020 EX-4.1

a trustee, relating to the $800,000,000 aggregate principal

EX-4.1 Exhibit 4.1 GARTNER, INC. 4.500% SENIOR NOTES DUE 2028 INDENTURE Dated as of June 22, 2020 U.S. Bank National Association as Trustee TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.01. Definitions 1 SECTION 1.02. Other Definitions 19 SECTION 1.03. Concerning the Trust Indenture Act 19 SECTION 1.04. Rules of Construction 19 ARTICLE II THE NOTES SECTION 2

June 23, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 22, 2020 GARTNER, INC.

June 18, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2020 GARTNER, INC.

June 18, 2020 EX-99.1

Gartner Announces Intention to Offer $500 Million in Senior Notes

EX-99.1 Exhibit 99.1 Gartner Announces Intention to Offer $500 Million in Senior Notes STAMFORD, Conn. – June 18, 2020- Gartner, Inc. (NYSE:IT) (“Gartner,” “we” or “our”) announced today that it has commenced an unregistered offering of $500 million in aggregate principal amount of Senior Notes due 2028 (the “Notes”). Gartner intends to use the net proceeds from the offering of the Notes, together

June 11, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 8, 2020 GARTNER, INC.

May 26, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2))

May 7, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 7, 2020 GARTNER, INC.

May 7, 2020 EX-99.1

Gartner Reports First Quarter 2020 Financial Results Total Contract Value $3.5 billion, +10.6% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2020 Financial Results Total Contract Value $3.5 billion, +10.6% YoY FX Neutral FIRST QUARTER 2020 HIGHLIGHTS •Revenues: $1.0 billion, +5.0%; +6.1% FX neutral. •Net income: $75 million; adjusted EBITDA: $214 million, +50.8%, +52.8% FX neutral. •Diluted EPS: $0.83, +260.9%; adjusted EPS: $1.20, +106.9%. •Operating cash flow: $56 milli

May 7, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

May 7, 2020 EX-4.1

Fourth Amendment dated as of May 6, 2020 among the Company, the Lenders party thereto and JP Morgan Chase Bank, N.A., as administrative agent.

Execution Version FOURTH AMENDMENT FOURTH AMENDMENT, dated as of May 6, 2020 (this “Agreement”), among Gartner, Inc.

April 28, 2020 SC 13G

IT / Gartner, Inc. / GENERATION INVESTMENT MANAGEMENT LLP - SCHEDULE 13G HOLDINGS REPORT Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

April 22, 2020 DEFA14A

IT / Gartner, Inc. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

April 22, 2020 DEF 14A

IT / Gartner, Inc. DEF 14A - - DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 25, 2020 EX-99.1

Gartner Provides Update Regarding Conferences Through August 2020

EX-99.1 Exhibit 99.1 Gartner Press Release Gartner Provides Update Regarding Conferences Through August 2020 STAMFORD, Conn., March 25, 2020 — Gartner, Inc. (NYSE: IT), the world’s leading research and advisory company, today announced that in consideration of guidelines and travel restrictions implemented by governments around the world due to the novel coronavirus (COVID-19), it has cancelled or

March 25, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 25, 2020 GARTNER, INC.

March 9, 2020 EX-99.1

Gartner Provides Update Regarding First Quarter 2020 Conferences

EX-99.1 Exhibit 99.1 Gartner Provides Update Regarding First Quarter 2020 Conferences STAMFORD, Conn., March 9, 2020 — Gartner, Inc. (NYSE: IT), the world’s leading research and advisory company, today announced that out of an abundance of caution and in consideration of travel restrictions and guidelines implemented by governments and commercial organizations due to the novel coronavirus (COVID-1

March 9, 2020 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) March 9, 2020 GARTNER, INC.

February 19, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 19, 2020 EX-4.8

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 4.8 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2019, Gartner, Inc. (“Gartner,” “we,” “us” or “our”) had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $0.0005 per share (the “common stock”). DES

February 19, 2020 EX-21.1

SUBSIDIARIES OF THE REGISTRANT

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT Subsidiaries State/Country 1422722 Ontario Inc. Ontario, Canada Burton Group, Inc. Utah, USA Capterra, Inc. Delaware, USA Computer Financial Consultants, Inc. Delaware, USA Computer Financial Consultants, Limited United Kingdom Dataquest, Inc. California, USA G.G. Properties, Ltd. Bermuda Gartner Advisory (Singapore) PTE LTD. Singapore Gartner Australasi

February 19, 2020 EX-10.15

GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

Exhibit 10.15 GARTNER, INC. LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) a stock appreciation right (the “SAR”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is [] (the “G

February 19, 2020 EX-10.18

Enhanced Executive Rewards Policy Revised January 30, 2020

Exhibit 10.18 Enhanced Executive Rewards Policy Revised January 30, 2020 As a member of Gartner’s Operating Committee employed in the United States, you play a vital role in the overall success of our Company. To that end, your total rewards plan has the following enhancements that are summarized in this Enhanced Executive Rewards Policy (this “Policy”): • Deferred Compensation Plan with discretio

February 19, 2020 EX-10.16

GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

Exhibit 10.16 GARTNER, INC. LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) the number of performance stock units indicated in the notice of grant (a “PSU” or the “PSUs”) under the Company’s Long-Term Incentive Plan, as amended from time to time (the “Plan”) (this type of Award is referred to as Performance Shares under t

February 14, 2020 SC 13G/A

IT / Gartner, Inc. / BAMCO INC /NY/ - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 15)* Gartner, Inc. (Name of Issuer) Common (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 12, 2020 SC 13G/A

IT / Gartner, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Gartner Inc Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

February 5, 2020 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 30, 2020 GARTNER, INC.

February 5, 2020 EX-3.1

By-laws of Gartner, Inc. (January 30, 2020)

EX-3.1 Exhibit 3.1 BY-LAWS OF GARTNER, INC. A Delaware Corporation (as amended through January 30, 2020) ARTICLE I OFFICES Section 1. Registered Office. The registered office of the corporation in the State of Delaware shall be located in the City of Wilmington, County of New Castle, at such location as the Board of Directors may determine from time to time. Section 2. Other Offices. The corporati

February 5, 2020 SC 13G

IT / Gartner, Inc. / POLEN CAPITAL MANAGEMENT LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 4, 2020 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 4, 2020 GARTNER, INC.

February 4, 2020 EX-99.1

Gartner Reports Fourth Quarter 2019 Financial Results Total Contract Value $3.4 billion, +12% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2019 Financial Results Total Contract Value $3.4 billion, +12% YoY FX Neutral FOURTH QUARTER 2019 HIGHLIGHTS • Revenues: $1.2 billion, +11%; +11% FX neutral. Adjusted revenues: +11%, +11% FX neutral. • Net income: $68 million; adjusted EBITDA: $218 million, +3%, +5% FX neutral. • Diluted EPS: $0.75, -18%; adjusted EPS: $1.18, -2%. •

January 3, 2020 CORRESP

IT / Gartner, Inc. CORRESP - -

56 Top Gallant Road P.O. Box 10212 Stamford, CT 06904-2212 Telephone: Facsimile: +1-203-316-1111 +1-203-316-6300 gartner.com January 3, 2020 United States Securities and Exchange Commission Division of Corporation Finance Office of Trade & Services 100 F. Street, N.E. Washington, D.C. 20549 Attention: Robert Shapiro, Senior Staff Accountant, Office of Trade & Services Amy Geddes, Senior Staff Acco

October 31, 2019 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) October 31, 2019 GARTNER, INC.

October 31, 2019 EX-99.1

Gartner Reports Third Quarter 2019 Financial Results Total Contract Value $3.3 Billion, +11% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2019 Financial Results Total Contract Value $3.3 Billion, +11% YoY FX Neutral THIRD QUARTER 2019 HIGHLIGHTS • Revenues: $1.0 billion, +9%; +10% FX neutral. Adjusted Revenues: +10%, +11% FX neutral. • Net income: $41 million; adjusted EBITDA: $140 million, -6%, -5% FX neutral. • Diluted EPS: $0.46, >100%; adjusted EPS: $0.70, -18%. •

October 31, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

July 30, 2019 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 30, 2019 GARTNER, INC.

July 30, 2019 EX-99.1

Gartner Reports Second Quarter 2019 Financial Results Total Contract Value $3.2 Billion, +11% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2019 Financial Results Total Contract Value $3.2 Billion, +11% YoY FX Neutral SECOND QUARTER 2019 HIGHLIGHTS • Revenues: $1.1 billion, +7%; +9% FX neutral. Adjusted Revenues: +9%, +12% FX neutral. • Net income: $103 million; adjusted EBITDA: $185 million, +1%, +4% FX neutral. • Diluted EPS: $1.13, >+100%; adjusted EPS: $1.45, +41%.

July 30, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

May 31, 2019 8-K

Current Report

8-K 1 d754959d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 30, 2019 GARTNER, INC. (Exact name of registrant as specified in its charter) DELAWARE 1-14443 04-3099750 (State or Other Jurisdiction of Incorporation)

May 7, 2019 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 7, 2019 GARTNER, INC.

May 7, 2019 EX-99.1

Gartner Reports First Quarter 2019 Financial Results Total Contract Value $3.1 Billion, +11% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2019 Financial Results Total Contract Value $3.1 Billion, +11% YoY FX Neutral FIRST QUARTER 2019 HIGHLIGHTS • Revenues: $1.0 billion, +1%; +4% FX neutral. Adjusted Revenues: +8%, +11% FX neutral. • Net income: $21 million; adjusted EBITDA: $142 million, -2%, flat FX neutral. • Diluted EPS: $0.23, >100%; adjusted EPS: $0.58, -19%. • O

May 7, 2019 EX-10.1

Enhanced Executive Rewards Policy Revised February 1, 2019 As a member of Gartner’s Operating Committee employed in the United States, you play a vital role in the overall success of our Company. To that end, your total rewards plan has the following

enhancedexecutiverewards Enhanced Executive Rewards Policy Revised February 1, 2019 As a member of Gartner’s Operating Committee employed in the United States, you play a vital role in the overall success of our Company.

May 7, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2019 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as s

April 16, 2019 DEFA14A

IT / Gartner, Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

April 16, 2019 DEF 14A

IT / Gartner, Inc. DEF 14A

DEF 14A 1 d669085ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as

April 1, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Results of Operations and Financial Condition

8-K 1 d709567d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) April 1, 2019 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporati

February 22, 2019 EX-21.1

SUBSIDIARIES OF THE REGISTRANT

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT Subsidiaries State/Country Burton Group, Inc. Utah, USA Capterra, Inc. Delaware, USA Computer Financial Consultants, Inc. Delaware, USA Computer Financial Consultants, Limited United Kingdom Dataquest, Inc. California, USA G.G. Properties, Ltd. Bermuda Gartner Advisory (Singapore) PTE LTD. Singapore Gartner Australasia PTY Limited ( including branch in N

February 22, 2019 EX-10.14

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) the number of performance stock units indicated in the notice of grant (a “PSU” or the “PSUs”) under the Company’s 2014 Long-Term Incentive Plan, as amended from time to time (the “Plan”) (this type of Award is referred to as Performance Shares under the P

February 22, 2019 EX-10.6

SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT

Execution Version SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT This Second Amended Employment Agreement (the “Agreement”) is entered into effective as of February 14, 2019, by and between Eugene A.

February 22, 2019 EX-10.5

GARTNER, INC. LONG-TERM INCENTIVE PLAN (January 31, 2019 Amendment and Restatement) SECTION 1 BACKGROUND AND PURPOSE

GARTNER, INC. LONG-TERM INCENTIVE PLAN (January 31, 2019 Amendment and Restatement) SECTION 1 BACKGROUND AND PURPOSE 1.1 Background and Effective Date. The Plan permits the grant of Nonqualified Stock Options, Incentive Stock Options, Stock Appreciation Rights, Restricted Stock Awards, Performance Units, Performance Shares, and Restricted Stock Units. The Plan originally was effective as of May 29

February 22, 2019 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 22, 2019 EX-10.13

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) a stock appreciation right (the “SAR”) under the Company’s 2014 Long-Term Incentive Plan, as amended from time to time (the “Plan”), to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 6, 20

February 14, 2019 EX-99.1

Gene Hall CEO Delivering Sustained Double-Digit Growth

EX-99.1 Exhibit 99.1 Forward Looking Statement and Explanatory Note Statements contained in this presentation regarding the growth and prospects of the business, the Company’s projected 2019 financial results, long-term objectives and all other statements in this presentation other than recitation of historical facts are forward looking statements (as defined in the Private Securities Litigation R

February 14, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) February 14, 2019 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporation) (Commission F

February 14, 2019 SC 13G/A

IT / Gartner, Inc. / Select Equity Group, L.P. - SCHEDULE 13G/A, #1 Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Gartner, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 366651107 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒

February 14, 2019 EX-99.1

EXHIBIT 99.1

EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary are: Select Equity Group, L.P., which is an Investment Adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

February 14, 2019 SC 13G/A

IT / Gartner, Inc. / BAMCO INC /NY/ - NONE Passive Investment

SC 13G/A 1 doc1.htm NONE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 14)* Gartner, Inc. (Name of Issuer) Common (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

February 11, 2019 SC 13G/A

IT / Gartner, Inc. / VANGUARD GROUP INC Passive Investment

gartnerinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8 )* Name of issuer: Gartner Inc Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate

February 5, 2019 EX-99.1

Gartner Reports Fourth Quarter 2018 Financial Results Total Contract Value $3.2 Billion, +11% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Fourth Quarter 2018 Financial Results Total Contract Value $3.2 Billion, +11% YoY FX Neutral FOURTH QUARTER 2018 HIGHLIGHTS • Revenues: $1.1 billion, +7%; adjusted revenues excluding divested operations: $1.1 billion, +10%, +12% foreign currency neutral. • Net income: $84 million; adjusted EBITDA excluding divested operations: $211 million, +6%, +

February 5, 2019 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 5, 2019 GARTNER, INC.

November 1, 2018 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 1, 2018 GARTNER, INC.

November 1, 2018 EX-99.1

Gartner Reports Third Quarter 2018 Financial Results Total Contract Value $3.0 Billion, +12% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Third Quarter 2018 Financial Results Total Contract Value $3.0 Billion, +12% YoY FX Neutral THIRD QUARTER 2018 HIGHLIGHTS • Revenues: $922 million, +11%; adjusted revenues excluding divested operations: $910 million, +11%, +13% foreign currency neutral. • Net income: $12 million; adjusted EBITDA excluding divested operations: $149 million, +15%, +

November 1, 2018 10-Q

IT / Gartner, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

August 21, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 20, 2018 GARTNER, INC.

August 1, 2018 EX-99.1

Gartner Reports Second Quarter 2018 Financial Results Total Contract Value $2.9 Billion, +12% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports Second Quarter 2018 Financial Results Total Contract Value $2.9 Billion, +12% YoY FX Neutral THREE MONTHS ENDED JUNE 30, 2018 HIGHLIGHTS • Revenues: $1.0 billion, +19%; adjusted revenues excluding divested operations: $1.0 billion, +14%. • Net income: $46 million; adjusted EBITDA excluding divested operations: $191 million, +11%. • Diluted EPS: $0

August 1, 2018 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 26, 2018 GARTNER, INC.

August 1, 2018 EX-10.1

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN RESTRICTED STOCK UNIT AGREEMENT Grant # RU _________ NOTICE OF DIRECTOR GRANT

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN RESTRICTED STOCK UNIT AGREEMENT Grant # RU NOTICE OF DIRECTOR GRANT Gartner, Inc. (the “Company”) hereby grants you, (the “Grantee”), the number of restricted stock units indicated below (the “Restricted Stock Units”) under the Company’s 2014 Long-Term Incentive Plan (the “Plan”). The date of this Agreement is (the “Grant Date”). Subject to the provision

August 1, 2018 10-Q

IT / Gartner, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended June 30, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant as sp

June 11, 2018 SC 13G/A

IT / Gartner, Inc. / VANGUARD GROUP INC Passive Investment

gartnerinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7 )* Name of issuer: Gartner Inc Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: May 31, 2018 Check the appropriate box to designate the r

May 29, 2018 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 24, 2018 GARTNER, INC.

May 8, 2018 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 8, 2018 GARTNER, INC.

May 8, 2018 EX-99.1

Gartner Reports First Quarter 2018 Financial Results Total Contract Value $2.9 Billion, +12% YoY FX Neutral

EXHIBIT 99.1 Gartner Press Release Gartner Reports First Quarter 2018 Financial Results Total Contract Value $2.9 Billion, +12% YoY FX Neutral FIRST QUARTER 2018 HIGHLIGHTS • Revenues: $964 million, +54%; adjusted revenues: $974 million, +16%. • Net loss: $(20) million; adjusted EBITDA: $161 million, +14%. • Diluted EPS: $(0.22); adjusted EPS: $0.72. • Operating cash flow: $3 million; free cash fl

May 8, 2018 EX-10.1

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN STOCK APPRECIATION RIGHT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) a stock appreciation right (the “SAR”) under the Company’s 2014 Long-Term Incentive Plan (the “Plan”) to exercise in exchange for a payment from the Company pursuant to this SAR. The date of this Agreement is February 8, 2018 (the “Grant Date”). In gener

May 8, 2018 10-Q

IT / Gartner, Inc. 10-Q (Quarterly Report)

10-Q 1 a03312018-10q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended March 31, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc.

May 8, 2018 EX-10.2

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN PERFORMANCE STOCK UNIT AGREEMENT Gartner, Inc. (the “Company”) hereby grants you (or the “Grantee”) the number of performance stock units indicated in the notice of grant (a “PSU” or the “PSUs”) under the Company’s 2014 Long-Term Incentive Plan (the “Plan”) (this type of Award is referred to as Performance Shares under the Plan). The date of this Agreeme

April 10, 2018 DEFA14A

IT / Gartner, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [x] Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Sta

April 10, 2018 DEF 14A

IT / Gartner, Inc. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [x] Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) [x] Definitive Proxy S

April 3, 2018 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) April 3, 2018 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporation) (Commission File Number) (

February 22, 2018 EX-21.1

SUBSIDIARIES OF THE REGISTRANT

EXHIBIT 21.1 SUBSIDIARIES OF THE REGISTRANT Subsidiaries State/Country Burton Group, Inc. Utah, USA Capterra, Inc. Delaware, USA Computer Financial Consultants, Inc. Delaware, USA Computer Financial Consultants, Limited United Kingdom Dataquest, Inc. California, USA Software Advice, Inc. Delaware, USA G.G. Properties, Ltd. Bermuda Gartner Advisory (Singapore) PTE LTD. Singapore Gartner Australasia

February 22, 2018 10-K

IT / Gartner, Inc. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 1-14443 GARTNER, INC. (Exact name of registrant as specified in its c

February 22, 2018 EX-10.11

SEPARATION AGREEMENT AND RELEASE OF CLAIMS AGREEMENT made as of October 12, 2017, between GARTNER, INC., a Delaware corporation having an office located at 56 Top Gallant Road, Stamford, Connecticut ("Gartner") and Per Anders Waern (the "Employee").

paseparationagreement-to SEPARATION AGREEMENT AND RELEASE OF CLAIMS AGREEMENT made as of October 12, 2017, between GARTNER, INC.

February 15, 2018 EX-99.1

2 CONFIDENTIAL AND PROPRIETARY I © 2018 Gartner, Inc. and/or its affiliates. All rights reserved. ▪ Gene Hall, CEO ▪ Peter Sondegaard , EVP, Research & Advisory ▪ Break for lunch ▪ Joe Beck, EVP, Global Technology Sales ▪ Chris Thomas, EVP, Global Bu

Exhibit 99.1 2018 1 CONFIDENTIAL AND PROPRIETARY I ? 2018 Gartner, Inc. and/or its affiliates. All rights reserved. Statements contained in this presentation regarding the growth and prospects of the business, the Company?s projected 2018 financial results, long - term objectives and all other statements in this presentation other than recitation of historical facts are forward looking statements

February 15, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

8-K 1 c905008k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) February 15, 2018 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporation) (Co

February 14, 2018 SC 13G/A

IT / Gartner, Inc. / BAMCO INC /NY/ - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 13)* Gartner, Inc. (Name of Issuer) Common (Title of Class of Securities) 366651107 (CUSIP Number) Calendar Year 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

February 14, 2018 EX-99.1

EXHIBIT 99.1

EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary are: Select Equity Group, L.P., which is an Investment Adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

February 14, 2018 EX-99.2

AGREEMENT OF REPORTING PERSONS

EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each

February 14, 2018 SC 13G

IT / Gartner, Inc. / Select Equity Group, L.P. - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Gartner, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 366651107 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rul

February 9, 2018 SC 13G/A

IT / Gartner, Inc. / VANGUARD GROUP INC Passive Investment

gartnerinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6 )* Name of issuer: Gartner Inc Title of Class of Securities: Common Stock CUSIP Number: 366651107 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to designate

February 6, 2018 EX-99.3

Press Release FOR IMMEDIATE RELEASE CONTACTS: Media: Investors; Andrew Spender David Cohen Gartner Gartner +1 203 316 3286 +1 203 316 6631 [email protected] [email protected] Gartner Signs Definitive Agreement to Sell CEB Talent Assess

exhibit993scorpion Press Release FOR IMMEDIATE RELEASE CONTACTS: Media: Investors; Andrew Spender David Cohen Gartner Gartner +1 203 316 3286 +1 203 316 6631 andrew.

February 6, 2018 EX-99.1

Gartner Reports Financial Results for Fourth Quarter 2017 Heritage Gartner Total Contract Value up 16% YoY FX Neutral Heritage Gartner Fourth Quarter Revenue up 15% YOY and 13% YOY FX Neutral

Exhibit EXHIBIT 99.1 Gartner Press Release CONTACT: David Cohen GVP, Investor Relations, Gartner +1 203 316 6631 [email protected] Gartner Reports Financial Results for Fourth Quarter 2017 Heritage Gartner Total Contract Value up 16% YoY FX Neutral Heritage Gartner Fourth Quarter Revenue up 15% YOY and 13% YOY FX Neutral STAMFORD, Conn., February 6, 2018 ? Gartner, Inc. (NYSE: IT), th

February 6, 2018 EX-99.2

0 CONFIDENTIAL AND PROPRIETARY I © 2018 Gartner, Inc. and/or its affiliates. All rights reserved. Fourth Quarter 2017 Results February 6, 2018 1 CONFIDENTIAL AND PROPRIETARY I © 2018 Gartner, Inc. and/or its affiliates. All rights reserved. Statement

exhibit992fourthquarter2 0 CONFIDENTIAL AND PROPRIETARY I ? 2018 Gartner, Inc. and/or its affiliates. All rights reserved. Fourth Quarter 2017 Results February 6, 2018 1 CONFIDENTIAL AND PROPRIETARY I ? 2018 Gartner, Inc. and/or its affiliates. All rights reserved. Statements contained in this presentation regarding the growth and prospects of the business, the Company?s projected 2017 financial r

February 6, 2018 8-K

IT / Gartner, Inc. 8-K (Current Report)

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) February 6, 2018 GARTNER, INC.

November 16, 2017 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) November 13, 2017 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporation) (Commission File Numbe

November 2, 2017 EX-99.1

Gartner Reports Financial Results for Third Quarter 2017 Total Contract Value up 15% YoY FX Neutral Excluding CEB Third Quarter Revenue up 15% YOY and 14% YOY FX Neutral Excluding CEB

Exhibit EXHIBIT 99.1 Gartner Press Release CONTACT: Germaine Scott +1 203 316 6537 [email protected] Gartner Reports Financial Results for Third Quarter 2017 Total Contract Value up 15% YoY FX Neutral Excluding CEB Third Quarter Revenue up 15% YOY and 14% YOY FX Neutral Excluding CEB STAMFORD, Conn., November 2, 2017 ? Gartner, Inc. (NYSE: IT), the world's leading research and advisor

November 2, 2017 EX-99.2

0 CONFIDENTIAL AND PROPRIETARY I © 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Third Quarter 2017 Results November 2, 2017 1 CONFIDENTIAL AND PROPRIETARY I © 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Statements

q317earningspresentation 0 CONFIDENTIAL AND PROPRIETARY I ? 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Third Quarter 2017 Results November 2, 2017 1 CONFIDENTIAL AND PROPRIETARY I ? 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Statements contained in this presentation regarding the growth and prospects of the business, the Company?s projected 2017 financial re

November 2, 2017 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) October 31, 2017 GARTNER, INC.

November 2, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. For the quarterly period ended September 30, 2017 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-14443 Gartner, Inc. (Exact name of Registrant

November 2, 2017 EX-10.1

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN RESTRICTED STOCK UNIT AGREEMENT Grant # _______ NOTICE OF GRANT

GARTNER, INC. 2014 LONG-TERM INCENTIVE PLAN RESTRICTED STOCK UNIT AGREEMENT Grant # NOTICE OF GRANT Gartner, Inc. (the ?Company?) hereby grants you, (the ?Grantee?), the number of restricted stock units indicated below (the ?Restricted Stock Units?) under the Company?s 2014 Long-Term Incentive Plan (the ?Plan?). The date of this Agreement is August 10, 2017 (the ?Grant Date?). Subject to the provi

October 13, 2017 8-K

Gartner (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) October 12, 2017 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporation) (Commission File Number

October 4, 2017 8-K

Gartner (Current Report/Significant Event)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) October 4, 2017 GARTNER, INC. (Exact name of registrant as specified in its charter) Delaware 1-14443 04-3099750 (State or other jurisdiction of incorporation) (Commission File Number)

October 4, 2017 EX-99.1

Gartner to Explore Strategic Alternatives for CEB Talent Assessment Business

Exhibit 99.1 Press Release FOR IMMEDIATE RELEASE CONTACTS: Sherief Bakr Andrew Spender Gartner Gartner Investor Relations Corporate Communications + 1 203-316-6537 + 1 203-316-3286 [email protected] [email protected] Gartner to Explore Strategic Alternatives for CEB Talent Assessment Business STAMFORD, Conn., October 4, 2017 ? Gartner, Inc. (NYSE: IT), the world?s leading res

August 8, 2017 EX-99.2

0 CONFIDENTIAL AND PROPRIETARY I © 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Second Quarter 2017 Results August 8, 2017 1 CONFIDENTIAL AND PROPRIETARY I © 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Statements

secondquarter17results 0 CONFIDENTIAL AND PROPRIETARY I ? 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Second Quarter 2017 Results August 8, 2017 1 CONFIDENTIAL AND PROPRIETARY I ? 2017 Gartner, Inc. and/or its affiliates. All rights reserved. Statements contained in this presentation regarding the growth and prospects of the business, the Company?s projected 2017 financial resul

August 8, 2017 8-K

Regulation FD Disclosure, Results of Operations and Financial Condition

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) August 8, 2017 GARTNER, INC.

Other Listings
IT:1IT 206,30 €
MX:IT
GB:0ITV 242,09 $
DE:GGRA 201,50 €
Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista