IT

SEC source: 0001127602-24-016257 · form4.xml · nonDerivative · entry 4

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 610,869

F4 · price: This transaction was executed in multiple trades ranging from $455.50 to $456.07. 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: 0001127602-24-016257 · form4.xml · nonDerivative · entry 3

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 612,801

F3 · price: This transaction was executed in multiple trades ranging from $454.50 to $455.42. 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: 0001127602-24-016257 · form4.xml · nonDerivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 615,567

F2 · price: This transaction was executed in multiple trades ranging from $453.50 to $454.30. 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: 0001127602-24-016257 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 616,869

F1 · price: This transaction was executed in multiple trades ranging from $452.50 to $452.90. 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: 0001127602-24-016254 · 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: 0001127602-24-016466 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Global Business Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,583

F1 · date: Inadvertently filed late due to an administrative error.

SEC source: 0001127602-24-014489 · form4.xml · derivative · entry 3

Kim Thomas Sang · CIK 0001969228 · EVP, GC

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,390

Underlying: Common Stock · 1,130 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: Represents shares acquired upon release of RSUs, which convert into common stock on a one-for-one basis. These RSU's vent in four substantially equal installments commencing on May 4, 2024. This represents the first installment.

F1 · derivative.expiration_date: Represents shares acquired upon release of RSUs, which convert into common stock on a one-for-one basis. These RSU's vent in four substantially equal installments commencing on May 4, 2024. This represents the first installment.

SEC source: 0001127602-24-014489 · form4.xml · nonDerivative · entry 2

Kim Thomas Sang · CIK 0001969228 · EVP, GC

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 606

F2 · shares: Represents shares withheld for the payment of applicable income and payroll withholding taxes.

SEC source: 0001127602-24-014489 · form4.xml · nonDerivative · entry 1

Kim Thomas Sang · CIK 0001969228 · EVP, GC

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,130

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, which convert into common stock on a one-for-one basis. These RSU's vent in four substantially equal installments commencing on May 4, 2024. This represents the first installment.

SEC source: 0001127602-24-012307 · 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 · 56 shares

Expires not disclosed

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

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: 0001127602-24-012307 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,253

Underlying: Common Stock · 56 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: 0001127602-24-012307 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,831

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

SEC source: 0001127602-24-012305 · form4.xml · derivative · entry 3

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,577

Underlying: Common Stock · 32 shares

Expires not disclosed

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

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: 0001127602-24-012305 · form4.xml · derivative · entry 2

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,609

Underlying: Common Stock · 32 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: 0001127602-24-012305 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,168

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

SEC source: 0001127602-24-012304 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,616

Underlying: Common Stock · 63 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 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.

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 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: 0001127602-24-012302 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,190

Underlying: Common Stock · 51 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 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.

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 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: 0001127602-24-012300 · form4.xml · derivative · entry 3

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 134 shares

Expires not disclosed

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

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: 0001127602-24-012300 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134

Underlying: Common Stock · 134 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: 0001127602-24-012300 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 618,369

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

SEC source: 0001127602-24-012299 · form4.xml · derivative · entry 3

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,063

Underlying: Common Stock · 52 shares

Expires not disclosed

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

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: 0001127602-24-012299 · form4.xml · derivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,115

Underlying: Common Stock · 52 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: 0001127602-24-012299 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,438

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

SEC source: 0001127602-24-012297 · form4.xml · derivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,468

Underlying: Common Stock · 52 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 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.

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 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: 0001127602-24-012292 · form4.xml · derivative · entry 3

GUTIERREZ JOSE M · CIK 0001257702 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 226

Underlying: Common Stock · 26 shares

Expires not disclosed

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

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: 0001127602-24-012292 · form4.xml · derivative · entry 2

GUTIERREZ JOSE M · CIK 0001257702 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 252

Underlying: Common Stock · 26 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: 0001127602-24-012292 · form4.xml · nonDerivative · entry 1

GUTIERREZ JOSE M · CIK 0001257702 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 256

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

SEC source: 0001127602-24-012296 · form4.xml · derivative · entry 3

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81

Underlying: Common Stock · 55 shares

Expires not disclosed

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

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: 0001127602-24-012296 · form4.xml · derivative · entry 2

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136

Underlying: Common Stock · 55 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: 0001127602-24-012296 · form4.xml · nonDerivative · entry 1

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,237

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

SEC source: 0001127602-24-012277 · form4.xml · derivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43

Underlying: Common Stock · 27 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 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.

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 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: 0001127602-24-012276 · form4.xml · derivative · entry 3

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,668

Underlying: Common Stock · 47 shares

Expires not disclosed

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

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: 0001127602-24-012276 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,715

Underlying: Common Stock · 47 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: 0001127602-24-012276 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,711

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

SEC source: 0001127602-24-010452 · form4.xml · nonDerivative · entry 1

Herkes Claire · CIK 0001843712 · EVP, Conferences

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,842

F1 · price: This transaction was executed in multiple trades at prices ranging from $475.48 to $476.20. 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: 0001127602-24-010012 · 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: 6,400

SEC source: 0001127602-24-010012 · form4.xml · nonDerivative · entry 3

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,386

SEC source: 0001127602-24-010012 · form4.xml · nonDerivative · entry 2

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,386

SEC source: 0001127602-24-010012 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Family Trust #1

Disclosed balance after: 10,000

SEC source: 0001127602-24-010010 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,775

F1 · kind: On March 14, 2022, the reporting person established a grantor retained annuity trust with an independent trustee (the "2022 GRAT"). This reflects the distribution of shares to the reporting person as the proceeds of an annual annuity distribution from the 2022 GRAT.

SEC source: 0001127602-24-009422 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 618,235

SEC source: 0001127602-24-008602 · form4.xml · nonDerivative · entry 4

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,155,457

F4 · price: This transaction was executed in multiple trades at prices ranging from $470.00 to $470.69. 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: 0001127602-24-008602 · form4.xml · nonDerivative · entry 3

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,159,587

F3 · price: This transaction was executed in multiple trades at prices ranging from $468.96 to $469.91. 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: 0001127602-24-008602 · form4.xml · nonDerivative · entry 2

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,162,113

F2 · price: This transaction was executed in multiple trades at prices ranging from $468.57 to $469.22. 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: 0001127602-24-008602 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,166,358

F1 · price: This transaction was executed in multiple trades at prices ranging from $467.44 to $468.40. 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: 0001127602-24-007921 · form4.xml · nonDerivative · entry 4

Allard Kenneth · CIK 0001774166 · EVP, Digital Markets

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,442

F4 · price: This transaction was executed in multiple trades at prices ranging from $464.62 to $465.00. 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: 0001127602-24-008200 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,536

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective September 1, 2021) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-008197 · form4.xml · nonDerivative · entry 1

Sribar Valentin · CIK 0001907594 · EVP, Research & Advisory

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,157

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective September 1, 2021) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-008193 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,174,173

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective September 1, 2021) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).

SEC source: 0001127602-24-008190 · form4.xml · nonDerivative · entry 1

Kranich Robin B · CIK 0001308381 · EVP & CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,374

F1 · shares: Represents shares acquired under Gartner, Inc.'s 2011 Employee Stock Purchase Plan (as amended and restated effective September 1, 2021) in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(c).