IT

SEC source: 0001127602-17-020354 · form4a.xml · derivative · entry 2

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,960 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: This award vests in its entiretyvon May 26, 2017.

F1 · derivative.expiration_date: This award vests in its entiretyvon May 26, 2017.

SEC source: 0001127602-17-020354 · form4a.xml · nonDerivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,723

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: 0001127602-17-019690 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · SVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,085

SEC source: 0001127602-17-019689 · form4.xml · derivative · entry 6

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 130,749 shares

Expires 2020-02-12

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 2/12/2014 and are fully exerciseable.

F1 · derivative.expiration_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/12/2014 and are fully exerciseable.

SEC source: 0001127602-17-019689 · form4.xml · nonDerivative · entry 3

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,212,426

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: 0001127602-17-019689 · form4.xml · nonDerivative · entry 2

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,249,615

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: 0001127602-17-019689 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,304,375

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: 0001127602-17-019413 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · SVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,085

SEC source: 0001127602-17-018845 · form4.xml · nonDerivative · entry 1

Sondergaard Peter · CIK 0001308300 · SVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 93,765

F1 · price: This transaction was executed in multiple trades at prices ranging from $111.90 to $111.95. The price reported 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: 0001127602-17-018374 · form4.xml · nonDerivative · entry 2

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,202

F1 · shares: These shares were gifted by Ms. Kranich.

SEC source: 0001127602-17-018374 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,530

SEC source: 0001127602-17-017924 · form4.xml · derivative · entry 4

Davis Kendall B · CIK 0001339793 · SVP, Bus IT Ldrs Prod & Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,396 shares

Expires 2018-02-22

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 2/22/2012 and are fully exercisable.

F1 · derivative.expiration_date: These SARs became exercisable in four substantially equal annual installments commencing on 2/22/2012 and are fully exercisable.

SEC source: 0001127602-17-017924 · form4.xml · nonDerivative · entry 3

Davis Kendall B · CIK 0001339793 · SVP, Bus IT Ldrs Prod & Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,392

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: 0001127602-17-017924 · form4.xml · nonDerivative · entry 2

Davis Kendall B · CIK 0001339793 · SVP, Bus IT Ldrs Prod & Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,443

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: 0001127602-17-017924 · form4.xml · nonDerivative · entry 1

Davis Kendall B · CIK 0001339793 · SVP, Bus IT Ldrs Prod & Svcs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,605

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: 0001127602-17-017413 · form4.xml · derivative · entry 3

Christopher MR Thomas · CIK 0001575469 · SVP, Executive Programs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,331 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.

F2 · shares: Represents shares acquired upon release of RSUs.

F1 · derivative.exercise_date: These RSUs vest in four substantially equal annual installments, commencing on 05/06/2014.

F1 · derivative.expiration_date: These RSUs vest in four substantially equal annual installments, commencing on 05/06/2014.

SEC source: 0001127602-17-017413 · form4.xml · nonDerivative · entry 2

Christopher MR Thomas · CIK 0001575469 · SVP, Executive Programs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,117

F3 · shares: Represents shares withheld from released RSUs for the payment of applicable income and payroll withholding taxes due on release.

SEC source: 0001127602-17-017413 · form4.xml · nonDerivative · entry 1

Christopher MR Thomas · CIK 0001575469 · SVP, Executive Programs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,769

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.

F2 · shares: Represents shares acquired upon release of RSUs.

SEC source: 0001127602-17-014338 · 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 · 402 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: 0001127602-17-014338 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 402

Underlying: Common Stock · 402 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: 0001127602-17-014338 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 793,130

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

SEC source: 0001127602-17-014337 · 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 · 138 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: 0001127602-17-014337 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,806

Underlying: Common Stock · 138 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: 0001127602-17-014337 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,576

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

SEC source: 0001127602-17-014336 · 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 · 178 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: 0001127602-17-014336 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,375

Underlying: Common Stock · 178 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: 0001127602-17-014336 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,511

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

SEC source: 0001127602-17-014334 · 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 · 106 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: 0001127602-17-014334 · form4.xml · derivative · entry 2

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,683

Underlying: Common Stock · 106 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: 0001127602-17-014334 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,842

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

SEC source: 0001127602-17-014333 · form4.xml · derivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,749

Underlying: Common Stock · 86 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: 0001127602-17-014331 · 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 · 161 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: 0001127602-17-014331 · form4.xml · derivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,224

Underlying: Common Stock · 161 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: 0001127602-17-014331 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,311

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

SEC source: 0001127602-17-014330 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,991

Underlying: Common Stock · 207 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: 0001127602-17-014322 · 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 · 178 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: 0001127602-17-014322 · form4.xml · derivative · entry 2

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,245

Underlying: Common Stock · 178 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: 0001127602-17-014322 · form4.xml · nonDerivative · entry 1

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,973

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

SEC source: 0001127602-17-014326 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 457

Underlying: Common Stock · 138 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: 0001127602-17-011801 · form4.xml · nonDerivative · entry 1

Christopher MR Thomas · CIK 0001575469 · SVP, Executive Programs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,438

F1 · price: This transaction was executed in multiple trades at prices ranging from $109.181 to $109.205. The price reported 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: 0001127602-17-009777 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · SVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,097

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: 0001127602-17-009774 · form4.xml · nonDerivative · entry 1

Peale Daniel S · CIK 0001661541 · SVP, Gen Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,626

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: 0001127602-17-009770 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,891

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: 0001127602-17-009767 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,173,626

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: 0001127602-17-009764 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · SVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,485

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: 0001127602-17-008611 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · SVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,037

F1 · price: This transaction was executed in multiple trades at prices ranging from $102.4523 to $102.50. 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: 0001127602-17-008610 · form4.xml · nonDerivative · entry 1

WAERN PER ANDERS · CIK 0001424615 · SVP, Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: This transaction was executed in multiple trades at prices ranging from $102.42 to $102.46. 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: 0001127602-17-007421 · form4.xml · derivative · entry 18

WAERN PER ANDERS · CIK 0001424615 · SVP, Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,256

Underlying: Common Stock · 5,419 shares

Expires 2023-02-08

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.

F5 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/8/2017.

F5 · derivative.expiration_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/8/2017.

SEC source: 0001127602-17-007421 · form4.xml · derivative · entry 17

WAERN PER ANDERS · CIK 0001424615 · SVP, Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,427

Underlying: Common Stock · 4,714 shares

Expires 2022-02-09

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.

F4 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/9/2016.

F4 · derivative.expiration_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/9/2016.

SEC source: 0001127602-17-007421 · form4.xml · derivative · entry 16

WAERN PER ANDERS · CIK 0001424615 · SVP, Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,020

Underlying: Common Stock · 5,020 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.

F3 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 02/10/2015.

F3 · derivative.expiration_date: These SARs become exercisable in four substantially equal annual installments commencing on 02/10/2015.