IT

SEC source: 0001127602-19-001372 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,366

Underlying: Common Stock · 134 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 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 ("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 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: 0001127602-18-035145 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,401

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: 0001127602-18-035141 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,946

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: 0001127602-18-035136 · form4.xml · nonDerivative · entry 1

Kaufman Jules · CIK 0001578939 · EVP, GC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,091

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: 0001127602-18-035134 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,173,963

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: 0001127602-18-035131 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,217

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: 0001127602-18-035127 · form4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 620

Underlying: Common Stock · 207 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 four years on November 30, 2018, November 30, 2019, November 30, 2020, and November 30, 2021.

F1 · derivative.expiration_date: These RSUs are scheduled to vest ratably over four years on November 30, 2018, November 30, 2019, November 30, 2020, and November 30, 2021.

SEC source: 0001127602-18-035127 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,439

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

SEC source: 0001127602-18-035127 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,535

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: 0001127602-18-034762 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,914

F1 · price: This transaction was executed in multiple trades at prices ranging from $149.22 to $149.39. 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: 0001127602-18-034311 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,383

SEC source: 0001127602-18-034310 · form4.xml · derivative · entry 5

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,713

Underlying: Common Stock · 14,142 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.

F1 · derivative.exercise_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/9/2016.

F1 · derivative.expiration_date: These SARs become exercisable in four substantially equal annual installments commencing on 2/9/2016.

SEC source: 0001127602-18-034310 · form4.xml · nonDerivative · entry 4

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,999

SEC source: 0001127602-18-034310 · form4.xml · nonDerivative · entry 3

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,762

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: 0001127602-18-034310 · form4.xml · nonDerivative · entry 2

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,271

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: 0001127602-18-034310 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,819

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: 0001127602-18-034003 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,177

SEC source: 0001127602-18-033456 · form4.xml · derivative · entry 3

Hensel Scott · CIK 0001674793 · EVP Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,196

Underlying: Common Stock · 1,066 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 vest in four substantially equal annual installments, commencing on 11/15/2018. This represents the first installment.

F1 · derivative.expiration_date: These RSUs vest in four substantially equal annual installments, commencing on 11/15/2018. This represents the first installment.

SEC source: 0001127602-18-033456 · form4.xml · nonDerivative · entry 2

Hensel Scott · CIK 0001674793 · EVP Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 731

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

SEC source: 0001127602-18-033456 · form4.xml · nonDerivative · entry 1

Hensel Scott · CIK 0001674793 · EVP Consulting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,066

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: 0001127602-18-032918 · 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 · 18,905 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 exercisable.

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

SEC source: 0001127602-18-032918 · form4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,586

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: 0001127602-18-032918 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,399

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: 0001127602-18-032918 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,758

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: 0001127602-18-029441 · form4.xml · derivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 441

Underlying: Common Stock · 111 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: 0001127602-18-029443 · 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 · 276 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: 0001127602-18-029443 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 276

Underlying: Common Stock · 276 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: 0001127602-18-029443 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 798,783

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

SEC source: 0001127602-18-029439 · 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 · 122 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: 0001127602-18-029439 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,319

Underlying: Common Stock · 122 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: 0001127602-18-029439 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,030

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

SEC source: 0001127602-18-029436 · 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 · 73 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: 0001127602-18-029436 · form4.xml · derivative · entry 2

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,650

Underlying: Common Stock · 73 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: 0001127602-18-029436 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,999

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

SEC source: 0001127602-18-029430 · form4.xml · derivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,185

Underlying: Common Stock · 59 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: 0001127602-18-029428 · 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 · 111 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: 0001127602-18-029428 · form4.xml · derivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,174

Underlying: Common Stock · 111 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: 0001127602-18-029428 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,743

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

SEC source: 0001127602-18-029424 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,038

Underlying: Common Stock · 142 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: 0001127602-18-029419 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,232

Underlying: Common Stock · 107 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: 0001127602-18-029417 · 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 · 95 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: 0001127602-18-029417 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,763

Underlying: Common Stock · 95 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: 0001127602-18-029417 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,892

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

SEC source: 0001127602-18-027919 · form4.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,430

Underlying: Common Stock · 1,431 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 vest in four equal annual installments, beginning on September 15, 2016. This represents the 2018 installment.

F1 · derivative.expiration_date: These RSUs vest in four equal annual installments, beginning on September 15, 2016. This represents the 2018 installment.

SEC source: 0001127602-18-027919 · form4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,888

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

SEC source: 0001127602-18-027919 · form4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,589

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: 0001127602-18-026687 · form4.xml · nonDerivative · entry 1

Christopher MR Thomas · CIK 0001575469 · EVP, Business Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,738

F1 · price: This transaction was executed in multiple trades at prices ranging from $149.77 to $149.881. 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: 0001127602-18-026685 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP, Human Resources

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,677

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: 0001127602-18-026684 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,383

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: 0001127602-18-026683 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Events

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,555

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).