IT

SEC source: 0001127602-17-004655 · form4.xml · derivative · entry 1

Sondergaard Peter · CIK 0001308300 · SVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,535

Underlying: Common Stock · 17,535 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004652 · form4.xml · derivative · entry 1

Safian Craig · CIK 0001610073 · SVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,378

Underlying: Common Stock · 22,378 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004650 · form4.xml · derivative · entry 1

Peale Daniel S · CIK 0001661541 · SVP, Gen Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,562

Underlying: Common Stock · 9,562 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004645 · form4.xml · derivative · entry 1

McVeigh David K · CIK 0001458011 · SVP, New Market Programs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,535

Underlying: Common Stock · 17,535 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004642 · form4.xml · derivative · entry 5

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

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.

F2 · derivative.exercise_date: These SARs became exercisable in four substantially equal annual installments commencing on 2/22/2012 and are fully exercisable.

F2 · derivative.expiration_date: These SARs became exercisable in four substantially equal annual installments commencing on 2/22/2012 and are fully exercisable.

SEC source: 0001127602-17-004642 · form4.xml · derivative · entry 4

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,535

Underlying: Common Stock · 17,535 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004642 · form4.xml · nonDerivative · entry 3

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,004

F4 · 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: 0001127602-17-004642 · form4.xml · nonDerivative · entry 2

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,430

F3 · 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: 0001127602-17-004642 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,039

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: 0001127602-17-004639 · form4.xml · derivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 114,600

Underlying: Common Stock · 114,600 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004638 · form4.xml · derivative · entry 1

GODFREY DAVID · CIK 0001491224 · SVP Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,535

Underlying: Common Stock · 17,535 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004633 · form4.xml · derivative · entry 1

Diliberto Michael Fox · CIK 0001680446 · SVP, Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,240

Underlying: Common Stock · 13,240 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004632 · form4.xml · derivative · entry 1

Dawkins Alwyn · CIK 0001439796 · SVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,535

Underlying: Common Stock · 17,535 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-004630 · form4.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,535

Underlying: Common Stock · 17,535 shares

Expires 2024-02-06

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/6/2018.

SEC source: 0001127602-17-001088 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 319

Underlying: Common Stock · 150 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: 0001127602-17-001101 · 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 · 438 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: 0001127602-17-001101 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 438

Underlying: Common Stock · 438 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: 0001127602-17-001101 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 792,728

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

SEC source: 0001127602-17-001100 · 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 · 150 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: 0001127602-17-001100 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,818

Underlying: Common Stock · 150 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: 0001127602-17-001100 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,438

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

SEC source: 0001127602-17-001098 · 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 · 194 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: 0001127602-17-001098 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,391

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: 0001127602-17-001098 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,333

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

SEC source: 0001127602-17-001097 · 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 · 116 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: 0001127602-17-001097 · form4.xml · derivative · entry 2

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,693

Underlying: Common Stock · 116 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: 0001127602-17-001097 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,736

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

SEC source: 0001127602-17-001096 · form4.xml · derivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,663

Underlying: Common Stock · 94 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: 0001127602-17-001094 · 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 · 175 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: 0001127602-17-001094 · form4.xml · derivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,238

Underlying: Common Stock · 175 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: 0001127602-17-001094 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,150

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

SEC source: 0001127602-17-001093 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,784

Underlying: Common Stock · 225 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: 0001127602-17-001085 · 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 · 194 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: 0001127602-17-001085 · form4.xml · derivative · entry 2

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,261

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: 0001127602-17-001085 · form4.xml · nonDerivative · entry 1

Bingle Michael J · CIK 0001306831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,795

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

SEC source: 0001127602-16-070140 · form4.xml · derivative · entry 4

GODFREY DAVID · CIK 0001491224 · SVP Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,726

Underlying: Common Stock · 14,179 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.

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

SEC source: 0001127602-16-070140 · form4.xml · nonDerivative · entry 3

GODFREY DAVID · CIK 0001491224 · SVP Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,132

F2 · 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: 0001127602-16-070140 · form4.xml · nonDerivative · entry 2

GODFREY DAVID · CIK 0001491224 · SVP Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,774

F3 · 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: 0001127602-16-070140 · form4.xml · nonDerivative · entry 1

GODFREY DAVID · CIK 0001491224 · SVP Worldwide Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,510

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: 0001127602-16-068837 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,173,566

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: 0001127602-16-068838 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · SVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,176

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: 0001127602-16-068836 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · SVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,643

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: 0001127602-16-068835 · form4.xml · nonDerivative · entry 1

Peale Daniel S · CIK 0001661541 · SVP, Gen Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,085

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: 0001127602-16-068834 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · SVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,230

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: 0001127602-16-068665 · form4.xml · derivative · entry 4

Sondergaard Peter · CIK 0001308300 · SVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 29,950 shares

Expires 2017-02-11

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 2/11/2011 and are fully exercisable.

F1 · derivative.expiration_date: These SARs became exercisable in four substantially equal, annual installments commencing on 2/11/2011 and are fully exercisable.

SEC source: 0001127602-16-068665 · form4.xml · nonDerivative · entry 3

Sondergaard Peter · CIK 0001308300 · SVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,946

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: 0001127602-16-068665 · form4.xml · nonDerivative · entry 2

Sondergaard Peter · CIK 0001308300 · SVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,496

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: 0001127602-16-068665 · form4.xml · nonDerivative · entry 1

Sondergaard Peter · CIK 0001308300 · SVP, Research

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,844

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: 0001127602-16-066405 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · SVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,116

F1 · price: This transaction was executed in multiple trades at prices ranging from $94.98 to $98.99. 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: 0001127602-16-064841 · form4.xml · derivative · entry 3

Peale Daniel S · CIK 0001661541 · SVP, Gen Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,342

Underlying: Common Stock · 1,448 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 · shares: Represents shares acquired upon release of RSUs.

F2 · derivative.exercise_date: These RSUs vest in four equal annual installments, beginning on October 15, 2016.

F2 · derivative.expiration_date: These RSUs vest in four equal annual installments, beginning on October 15, 2016.