IT

SEC source: 0001127602-24-025149 · form4.xml · derivative · entry 3

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,197

Underlying: Common Stock · 54 shares

Expires not disclosed

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

SEC source: 0001127602-24-025149 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,251

Underlying: Common Stock · 54 shares

Expires not disclosed

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

SEC source: 0001127602-24-025149 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,846

F1 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-24-025147 · form4.xml · derivative · entry 5

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,063

Underlying: Common Stock · 50 shares

Expires not disclosed

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

SEC source: 0001127602-24-025147 · form4.xml · derivative · entry 4

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,113

Underlying: Common Stock · 50 shares

Expires not disclosed

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

F2 · 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 Gartner, Inc. Long-Term Incentive Plan ("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 LTIP.

SEC source: 0001127602-24-025147 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,350

F1 · kind: This reporting person has elected to receive an immediate distribution of the CSE shares.

SEC source: 0001127602-24-024008 · form4.xml · nonDerivative · entry 1

Herkes Claire · CIK 0001843712 · EVP, Conferences

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,905

SEC source: 0001127602-24-023892 · form4.xml · nonDerivative · entry 5

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 564,218

F4 · price: This transaction was executed in multiple trades at prices ranging from $503.14 to $503.42. 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: 0001127602-24-023892 · form4.xml · nonDerivative · entry 4

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 565,270

F3 · price: This transaction was executed in multiple trades at prices ranging from $502.22 to $503.02. 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: 0001127602-24-023892 · form4.xml · nonDerivative · entry 3

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 568,041

F2 · price: This transaction was executed in multiple trades at prices ranging from $501.23 to $501.94. 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: 0001127602-24-023892 · form4.xml · nonDerivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 569,233

F1 · price: This transaction was executed in multiple trades at prices ranging from $500.22 to $501.09. 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: 0001127602-24-024006 · form4.xml · nonDerivative · entry 5

HALL EUGENE A · CIK 0001198849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,143,401

F5 · price: This transaction was executed in multiple trades at prices ranging from $506.76 to $507.19. 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: 0001127602-24-024006 · form4.xml · nonDerivative · entry 4

HALL EUGENE A · CIK 0001198849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,151,197

F4 · price: This transaction was executed in multiple trades at prices ranging from $505.42 to $506.19. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001127602-24-024006 · form4.xml · nonDerivative · entry 3

HALL EUGENE A · CIK 0001198849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,165,227

F3 · price: This transaction was executed in multiple trades at prices ranging from $504.35 to $505.34. 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: 0001127602-24-024006 · form4.xml · nonDerivative · entry 2

HALL EUGENE A · CIK 0001198849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,171,195

F2 · price: This transaction was executed in multiple trades at prices ranging from $503.15 to $503.63. 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: 0001127602-24-024006 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,172,472

F1 · price: This transaction was executed in multiple trades at prices ranging from $502.16 to $503.11. 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: 0001127602-24-023892 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 570,664

SEC source: 0001127602-24-023860 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 572,090

F1 · price: This transaction was executed in multiple trades at prices ranging from $500.00 to $500.36. 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: 0001127602-24-023810 · form4.xml · nonDerivative · entry 1

Jain Akhil · CIK 0001843364 · EVP, Consulting

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,339

F1 · price: This transaction was executed in multiple trades ranging from $492.00 to $492.02. 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: 0001127602-24-023808 · form4.xml · nonDerivative · entry 2

Wartinbee William James III · CIK 0001964065 · EVP, Global Sales Strat & Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,416

F1 · shares: On September 9, 2024, the reporting person donated 45 shares to a donor-advised fund.

SEC source: 0001127602-24-023808 · form4.xml · nonDerivative · entry 1

Wartinbee William James III · CIK 0001964065 · EVP, Global Sales Strat & Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,461

SEC source: 0001127602-24-023482 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,550

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective May 1, 2024) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-023479 · form4.xml · nonDerivative · entry 1

Sribar Valentin · CIK 0001907594 · EVP, Research & Advisory

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,683

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective May 1, 2024) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-023478 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Global Business Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,662

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective May 1, 2024) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-023461 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,400

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective May 1, 2024) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-023436 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,177,461

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective May 1, 2024) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-023325 · form4.xml · nonDerivative · entry 1

Hensel Scott · CIK 0001674793 · EVP Global Services & Delivery

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,724

SEC source: 0001127602-24-023323 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,388

SEC source: 0001127602-24-023321 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Global Business Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,650

SEC source: 0001127602-24-023147 · form4.xml · nonDerivative · entry 1

Herkes Claire · CIK 0001843712 · EVP, Conferences

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,383

F1 · price: This transaction was executed in multiple trades at prices ranging from $483.22 to $483.51. 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: 0001127602-24-023077 · form4.xml · nonDerivative · entry 1

Genovese Yvonne · CIK 0001843710 · EVP, Global Product Management

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,959

SEC source: 0001127602-24-022705 · form4.xml · derivative · entry 4

Genovese Yvonne · CIK 0001843710 · EVP, Global Product Management

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,826

Underlying: Common Stock · 1,280 shares

Expires 2028-02-10

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.

F4 · derivative.exercise_date: These SARs are part of an award that becomes exercisable in four substantially equal annual installments, commencing on February 10, 2022.

SEC source: 0001127602-24-022705 · form4.xml · nonDerivative · entry 3

Genovese Yvonne · CIK 0001843710 · EVP, Global Product Management

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,402

F3 · shares: Represents shares withheld for the payment of applicable income and payroll withholding taxes.

SEC source: 0001127602-24-022705 · form4.xml · nonDerivative · entry 2

Genovese Yvonne · CIK 0001843710 · EVP, Global Product Management

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,762

F2 · shares: Represents shares withheld that had 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: 0001127602-24-022705 · form4.xml · nonDerivative · entry 1

Genovese Yvonne · CIK 0001843710 · EVP, Global Product Management

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,239

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 exercise of SARs.

SEC source: 0001127602-24-022513 · form4.xml · nonDerivative · entry 4

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Family Trust #2

Disclosed balance after: 24,900

SEC source: 0001127602-24-022513 · form4.xml · nonDerivative · entry 3

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,300

SEC source: 0001127602-24-022513 · form4.xml · nonDerivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Family Trust #1

Disclosed balance after: 14,400

SEC source: 0001127602-24-022513 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,800

SEC source: 0001127602-24-022509 · form4.xml · nonDerivative · entry 1

Jain Akhil · CIK 0001843364 · EVP, Consulting

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,839

SEC source: 0001127602-24-022506 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,544

SEC source: 0001127602-24-022253 · form4.xml · nonDerivative · entry 3

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 574,218

SEC source: 0001127602-24-022253 · form4.xml · nonDerivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 576,861

SEC source: 0001127602-24-022253 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 579,118

SEC source: 0001127602-24-021943 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 584,218

SEC source: 0001127602-24-021818 · form4.xml · nonDerivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,825

SEC source: 0001127602-24-021506 · form4.xml · derivative · entry 8

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,657

Underlying: Common Stock · 5,000 shares

Expires 2027-02-05

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 are part of an award that became exercisable in four substantially equal annual installments, commencing on February 5, 2021, and are fully exercisable.

SEC source: 0001127602-24-021506 · form4.xml · derivative · entry 7

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,196 shares

Expires 2026-02-06

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 are part of an award that became exercisable in four substantially equal annual installments, commencing on February 6, 2020, and are fully exercisable.

SEC source: 0001127602-24-021506 · form4.xml · nonDerivative · entry 6

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,854

F3 · shares: Represents shares withheld for the payment of applicable income and payroll withholding taxes.

SEC source: 0001127602-24-021506 · form4.xml · nonDerivative · entry 5

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,620

F2 · shares: Represents shares withheld that had an aggregate value, based on the market price on the date of exercise, substantially equal to the aggregate exercise price of the SARs.