IT

SEC source: 0001127602-18-019080 · form4.xml · derivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-019079 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-019078 · form4.xml · derivative · entry 1

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-019076 · form4.xml · derivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-019075 · form4.xml · derivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-019074 · form4.xml · derivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-019071 · form4.xml · derivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

Underlying: Common Stock · 1,828 shares

Expires not disclosed

F1 · derivative.exercise_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs shall vest on May 24, 2019, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-18-017913 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,633

SEC source: 0001127602-18-017914 · form4.xml · nonDerivative · entry 1

Sondergaard Peter · CIK 0001308300 · EVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,467

SEC source: 0001127602-18-017367 · form4.xml · nonDerivative · entry 4

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,420

F4 · price: This transaction was executed in multiple trades at prices ranging from $134.88 to $134.92. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001127602-18-017532 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,189

F1 · price: This transaction was executed in multiple trades at prices ranging from $134.58 to $134.625. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected

SEC source: 0001127602-18-018456 · form4.xml · derivative · entry 4

Davis Kendall B · CIK 0001339793 · EVP, Products and Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 15,179 shares

Expires 2019-02-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: These SARs became exercisable in four substantially equal annual installments commencing on 2/9/2013 and are fully exercisable.

F1 · derivative.expiration_date: These SARs became exercisable in four substantially equal annual installments commencing on 2/9/2013 and are fully exercisable.

SEC source: 0001127602-18-018456 · form4.xml · nonDerivative · entry 3

Davis Kendall B · CIK 0001339793 · EVP, Products and Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,653

F3 · shares: Represents shares withheld from the settlement of the SARs for the payment of applicable income and payroll tax withholding due upon exercise.

SEC source: 0001127602-18-018456 · form4.xml · nonDerivative · entry 2

Davis Kendall B · CIK 0001339793 · EVP, Products and Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,717

F2 · shares: Represents the simultaneous sale back to the issuer of this number of shares having an aggregate value, based on the market price on the date of exercise, substantially equal to the aggregate exercise price of the SARs.

SEC source: 0001127602-18-018456 · form4.xml · nonDerivative · entry 1

Davis Kendall B · CIK 0001339793 · EVP, Products and Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,967

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-18-017367 · form4.xml · derivative · entry 5

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,080 shares

Expires 2021-02-10

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 02/10/2015 and are fully exercisable.

F1 · derivative.expiration_date: These SARs become exercisable in four substantially equal annual installments commencing on 02/10/2015 and are fully exercisable.

SEC source: 0001127602-18-017367 · form4.xml · nonDerivative · entry 3

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,294

F3 · shares: Represents shares withheld from the settlement of the SARs for the payment of applicable income and payroll tax withholding due upon exercise.

SEC source: 0001127602-18-017367 · form4.xml · nonDerivative · entry 2

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,840

F2 · shares: Represents the simultaneous sale back to the issuer of this number of shares having an aggregate value, based on the market price on the date of exercise, substantially equal to the aggregate exercise price of the SARs.

SEC source: 0001127602-18-017367 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,500

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-18-016524 · form4.xml · derivative · entry 3

Beck Joseph P. · CIK 0001729479 · EVP, Global Technology Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 286

Underlying: Common Stock · 143 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: These RSUs are scheduled to vest ratably over three years on April 30, 2018, April 30, 2019, and April 30, 2020.

F1 · derivative.expiration_date: These RSUs are scheduled to vest ratably over three years on April 30, 2018, April 30, 2019, and April 30, 2020.

SEC source: 0001127602-18-016524 · form4.xml · nonDerivative · entry 2

Beck Joseph P. · CIK 0001729479 · EVP, Global Technology Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,328

F2 · shares: Represents shares withheld from released RSUs for the payment of applicable income and payroll withholding taxes due on release.

SEC source: 0001127602-18-016524 · form4.xml · nonDerivative · entry 1

Beck Joseph P. · CIK 0001729479 · EVP, Global Technology Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,387

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001127602-18-014162 · form4.xml · derivative · entry 3

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 377 shares

Expires not disclosed

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

F1 · derivative.exercise_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014162 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 377

Underlying: Common Stock · 377 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014162 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 796,521

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-18-014161 · form4.xml · derivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210

Underlying: Common Stock · 129 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014160 · form4.xml · derivative · entry 3

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,668

Underlying: Common Stock · 129 shares

Expires not disclosed

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014160 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,797

Underlying: Common Stock · 129 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014160 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,026

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-18-014159 · form4.xml · derivative · entry 3

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,197

Underlying: Common Stock · 167 shares

Expires not disclosed

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014159 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,364

Underlying: Common Stock · 167 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014159 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,105

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-18-014157 · form4.xml · derivative · entry 3

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,577

Underlying: Common Stock · 100 shares

Expires not disclosed

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014157 · form4.xml · derivative · entry 2

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,677

Underlying: Common Stock · 100 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014157 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,181

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-18-014155 · form4.xml · derivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,056

Underlying: Common Stock · 81 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014154 · form4.xml · derivative · entry 3

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,063

Underlying: Common Stock · 151 shares

Expires not disclosed

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014154 · form4.xml · derivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,214

Underlying: Common Stock · 151 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014154 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,843

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-18-014152 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,727

Underlying: Common Stock · 194 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014151 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 998

Underlying: Common Stock · 145 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents (CSE) received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan (2014 LTIP). The Common Stock Equivalents convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014150 · form4.xml · derivative · entry 3

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,067

Underlying: Common Stock · 151 shares

Expires not disclosed

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

F1 · derivative.exercise_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014150 · form4.xml · derivative · entry 2

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,218

Underlying: Common Stock · 151 shares

Expires not disclosed

F1 · derivative.exercise_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

F1 · derivative.expiration_date: These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Company's 2014 Long-Term Incentive Plan ("2014 LTIP"). The CSEs convert into Gartner Common Stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the 2014 LTIP.

SEC source: 0001127602-18-014150 · form4.xml · nonDerivative · entry 1

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,516

F2 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-18-011708 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,133

SEC source: 0001127602-18-011169 · form4.xml · nonDerivative · entry 1

Sondergaard Peter · CIK 0001308300 · EVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,145

F1 · price: This transaction was executed in multiple trades at prices ranging from $120.60 to $120.89. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001127602-18-010374 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,420

F1 · price: This transaction was executed in multiple trades at prices ranging from $118.15 to $118.19. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001127602-18-009698 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,484

F1 · shares: Represents shares acquired under Gartner Inc.'s 2011 Employee Stock Purchase Plan in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-18-009695 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,717

F1 · shares: Represents shares acquired under Gartner Inc.'s 2011 Employee Stock Purchase Plan in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-18-009688 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,173,835

F1 · shares: Represents shares acquired under Gartner Inc.'s 2011 Employee Stock Purchase Plan in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).