IT

SEC source: 0001127602-24-020108 · 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 · 57 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: 0001127602-24-020108 · form4.xml · derivative · entry 4

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,120

Underlying: Common Stock · 57 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: 0001127602-24-020108 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,200

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

SEC source: 0001127602-24-020106 · 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 · 59 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: 0001127602-24-020106 · form4.xml · derivative · entry 2

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140

Underlying: Common Stock · 59 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: 0001127602-24-020106 · form4.xml · nonDerivative · entry 1

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,001

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

SEC source: 0001127602-24-020101 · 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 · 51 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: 0001127602-24-020101 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,719

Underlying: Common Stock · 51 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: 0001127602-24-020101 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,467

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

SEC source: 0001127602-24-020090 · form4.xml · derivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,525

Underlying: Common Stock · 57 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: 0001127602-24-018861 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,731

F1 · kind: These shares were gifted by the reporting person to a grantor retained annuity trust with an independent trustee on June 13, 2024 (the "2024 GRAT"). The reporting person does not have or share investment control over the shares held by the 2024 GRAT.

SEC source: 0001127602-24-018279 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F2 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F2 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018279 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 599,074

F1 · price: This transaction was executed in multiple trades ranging from $439.28 to $439.63. 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: 0001127602-24-018277 · form4.xml · derivative · entry 1

Bisson Peter · CIK 0001650029 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018275 · form4.xml · derivative · entry 1

BRESSLER RICHARD J · CIK 0001200604 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018272 · form4.xml · derivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018268 · form4.xml · derivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018266 · form4.xml · derivative · entry 1

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018264 · form4.xml · derivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018262 · form4.xml · derivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018260 · form4.xml · derivative · entry 1

GUTIERREZ JOSE M · CIK 0001257702 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018257 · form4.xml · derivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018254 · form4.xml · derivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 555

Underlying: Common Stock · 555 shares

Expires not disclosed

F1 · derivative.exercise_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs shall vest on June 6, 2025, subject to Grantee's continued service as a director through such date.

SEC source: 0001127602-24-018192 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,331

F1 · kind: On June 9, 2023, the reporting person established a grantor retained annuity trust with an independent trustee (the "2023 GRAT"). This reflects the distribution of shares to the reporting person as the proceeds of an annual annuity distribution from the 2023 GRAT.

SEC source: 0001127602-24-018085 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,524

F1 · balance_after: This balance reflects the number of shares directly held by the reporting person following the share transfer relating to the 2024 GRAT, described in footnote (2), as well as the sale reported herein.

SEC source: 0001127602-24-017773 · form4.xml · derivative · entry 2

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017773 · form4.xml · nonDerivative · entry 1

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 609,074

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: 0001127602-24-017765 · form4.xml · derivative · entry 2

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017765 · form4.xml · nonDerivative · entry 1

FUCHS ANNE SUTHERLAND · CIK 0001246335 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,873

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: 0001127602-24-017753 · form4.xml · derivative · entry 2

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 261 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017753 · form4.xml · nonDerivative · entry 1

DYKSTRA KAREN E · CIK 0001198848 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,508

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: 0001127602-24-017749 · form4.xml · derivative · entry 2

GUTIERREZ JOSE M · CIK 0001257702 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017749 · form4.xml · nonDerivative · entry 1

GUTIERREZ JOSE M · CIK 0001257702 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 961

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: 0001127602-24-017746 · form4.xml · derivative · entry 2

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017746 · form4.xml · nonDerivative · entry 1

GRABE WILLIAM O · CIK 0001185567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,536

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: 0001127602-24-017744 · form4.xml · derivative · entry 2

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017744 · form4.xml · nonDerivative · entry 1

PAGLIUCA STEPHEN G · CIK 0001240386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,416

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: 0001127602-24-017741 · form4.xml · derivative · entry 2

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017741 · form4.xml · nonDerivative · entry 1

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,942

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: 0001127602-24-017738 · form4.xml · derivative · entry 4

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 705 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: One hundred percent (100%) of the RSUs vested on June 1, 2024.

F1 · derivative.expiration_date: One hundred percent (100%) of the RSUs vested on June 1, 2024.

SEC source: 0001127602-24-017738 · form4.xml · nonDerivative · entry 1

CESAN RAUL E · CIK 0001023201 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,143

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: 0001127602-24-017770 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Global Business Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,797

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: 0001127602-24-017768 · form4.xml · nonDerivative · entry 1

Safian Craig · CIK 0001610073 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,544

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: 0001127602-24-017759 · form4.xml · nonDerivative · entry 1

Sribar Valentin · CIK 0001907594 · EVP, Research & Advisory

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,171

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: 0001127602-24-017736 · form4.xml · nonDerivative · entry 1

HALL EUGENE A · CIK 0001198849 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,155,471

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: 0001127602-24-017734 · 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

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: 0001127602-24-016798 · form4.xml · derivative · entry 3

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,828 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: One Hundred Percent (100%) of the RSUs vested on May 24, 2019. The Reporting Person elected to defer the release of the underlying shares until the 5th anniversary of the original vesting date.

F1 · derivative.expiration_date: One Hundred Percent (100%) of the RSUs vested on May 24, 2019. The Reporting Person elected to defer the release of the underlying shares until the 5th anniversary of the original vesting date.

SEC source: 0001127602-24-016798 · form4.xml · nonDerivative · entry 1

Serra Eileen · CIK 0001721344 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,827

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: 0001127602-24-016561 · form4.xml · nonDerivative · entry 1

Dawkins Alwyn · CIK 0001439796 · EVP, Global Business Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,783

SEC source: 0001127602-24-016257 · form4.xml · nonDerivative · entry 5

SMITH JAMES C · CIK 0001183693 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 608,369

F5 · price: This transaction was executed in multiple trades ranging from $456.61 to $457.50. 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.