MSCI

SEC source: 0001408198-25-000162 · wk-form4_1748980806.xml · nonDerivative · entry 1

Matlock Robin · CIK 0001781215 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,624

F1 · shares: Shares acquired by the Reporting Person in connection with MSCI Inc.'s payment of a dividend. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the earlier of June 1, 2033 and the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000164 · wk-form4_1748980879.xml · nonDerivative · entry 1

Taneja Rajat · CIK 0001532601 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,011

F1 · shares: Shares acquired by the Reporting Person in connection with MSCI Inc.'s payment of a dividend. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the shares were subject to a deferral election in effect as of the Transaction Date (May 30, 2025). That election expired on June 1, 2025.

SEC source: 0001408198-25-000148 · wk-form4_1746648022.xml · nonDerivative · entry 4

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,787

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

SEC source: 0001408198-25-000148 · wk-form4_1746648022.xml · nonDerivative · entry 3

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 290,159

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F4 · price: This transaction was executed in multiple trades at prices ranging from $553.00 to $553.515. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000148 · wk-form4_1746648022.xml · nonDerivative · entry 2

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 292,167

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F3 · price: This transaction was executed in multiple trades at prices ranging from $551.775 to $552.37. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000148 · wk-form4_1746648022.xml · nonDerivative · entry 1

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,053

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F2 · price: This transaction was executed in multiple trades at prices ranging from $550.73 to $551.58. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000146 · wk-form4_1746475627.xml · nonDerivative · entry 1

Yang June · CIK 0002008967 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 510

F1 · shares: Restricted stock units vesting on May 1, 2026. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000140 · wk-form4_1746475372.xml · nonDerivative · entry 2

Rattray Sandy C. · CIK 0001801716 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,449

F2 · shares: Restricted stock units vesting on May 1, 2026.

SEC source: 0001408198-25-000140 · wk-form4_1746475372.xml · nonDerivative · entry 1

Rattray Sandy C. · CIK 0001801716 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,064

F1 · shares: Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 450 restricted stock units ("RSUs") granted on May 1, 2024.

SEC source: 0001408198-25-000145 · wk-form4_1746475600.xml · nonDerivative · entry 2

Volent Paula · CIK 0001801717 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,857

SEC source: 0001408198-25-000145 · wk-form4_1746475600.xml · nonDerivative · entry 1

Volent Paula · CIK 0001801717 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,656

F1 · shares: Restricted stock units vesting on May 1, 2026.

SEC source: 0001408198-25-000137 · wk-form4_1746475260.xml · nonDerivative · entry 2

Ashe Robert G. · CIK 0001414310 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,235

SEC source: 0001408198-25-000137 · wk-form4_1746475260.xml · nonDerivative · entry 1

Ashe Robert G. · CIK 0001414310 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,034

F1 · shares: Restricted stock units vesting on May 1, 2026.

SEC source: 0001408198-25-000144 · wk-form4_1746475571.xml · nonDerivative · entry 2

Taneja Rajat · CIK 0001532601 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,002

F2 · shares: Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the earlier of June 1, 2025 and the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000144 · wk-form4_1746475571.xml · nonDerivative · entry 1

Taneja Rajat · CIK 0001532601 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,819

F1 · shares: Restricted stock units vesting on May 1, 2026. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the earlier of June 1, 2025 and the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000143 · wk-form4_1746475543.xml · nonDerivative · entry 1

Smith Marcus L. · CIK 0001718950 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,056

F1 · shares: Restricted stock units vesting on May 1, 2026.

SEC source: 0001408198-25-000142 · wk-form4_1746475503.xml · nonDerivative · entry 1

Seitz Michelle · CIK 0001836301 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 671

F1 · shares: Restricted stock units vesting on May 1, 2026.

SEC source: 0001408198-25-000139 · wk-form4_1746475330.xml · nonDerivative · entry 1

Perold Jacques P · CIK 0001648837 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,884

F1 · shares: Restricted stock units vesting on May 1, 2026.

SEC source: 0001408198-25-000138 · wk-form4_1746475298.xml · nonDerivative · entry 1

Matlock Robin · CIK 0001781215 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,620

F1 · shares: Restricted stock units vesting on May 1, 2026. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the earlier of June 1, 2033 and the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000141 · wk-form4_1746475416.xml · nonDerivative · entry 1

RIEFLER LINDA H · CIK 0001366334 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,571

F1 · shares: Restricted stock units vesting on May 1, 2026. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 10

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,787

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 9

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,793

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 8

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,359

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F8 · price: This transaction was executed in multiple trades at prices ranging from $529.16 to $529.46. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 7

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,609

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 6

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,709

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F7 · price: This transaction was executed in multiple trades at prices ranging from $525.81 to $526.27. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 5

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 295,944

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F6 · price: This transaction was executed in multiple trades at prices ranging from $524.38 to $525.09. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 4

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 296,529

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F5 · price: This transaction was executed in multiple trades at prices ranging from $523.24 to $523.92. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 3

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 297,265

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F4 · price: This transaction was executed in multiple trades at prices ranging from $522.20 to $523.00. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 2

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 298,059

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F3 · price: This transaction was executed in multiple trades at prices ranging from $520.85 to $521.65. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000103 · wk-form4_1744056231.xml · nonDerivative · entry 1

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 299,538

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F2 · price: This transaction was executed in multiple trades at prices ranging from $519.67 to $520.33. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000085 · wk-form4_1741381291.xml · nonDerivative · entry 4

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 299,787

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F5 · price: This transaction was executed in multiple trades at prices ranging from $569.395 to $569.715. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000085 · wk-form4_1741381291.xml · nonDerivative · entry 3

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 300,204

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F4 · price: This transaction was executed in multiple trades at prices ranging from $568.37 to $569.29. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000085 · wk-form4_1741381291.xml · nonDerivative · entry 2

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 302,210

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F3 · price: This transaction was executed in multiple trades at prices ranging from $567.37 to $568.31. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000085 · wk-form4_1741381291.xml · nonDerivative · entry 1

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 304,587

F1 · shares: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024.

F2 · price: This transaction was executed in multiple trades at prices ranging from $565.77 to $566.51. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000080 · wk-form4_1741122135.xml · nonDerivative · entry 1

RIEFLER LINDA H · CIK 0001366334 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,186

F1 · shares: Shares acquired by the Reporting Person in connection with MSCI Inc.'s payment of a dividend. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000081 · wk-form4_1741122158.xml · nonDerivative · entry 1

Taneja Rajat · CIK 0001532601 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,434

F1 · shares: Shares acquired by the Reporting Person in connection with MSCI Inc.'s payment of a dividend. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the earlier of June 1, 2025 and the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000079 · wk-form4_1741122109.xml · nonDerivative · entry 1

Matlock Robin · CIK 0001781215 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,235

F1 · shares: Shares acquired by the Reporting Person in connection with MSCI Inc.'s payment of a dividend. Pursuant to the MSCI Inc. Non-Employee Directors Deferral Plan, the Reporting Person has elected to defer receipt of the shares until the earlier of June 1, 2033 and the 60th day after such Reporting Person's "separation from service" as a director.

SEC source: 0001408198-25-000066 · wk-form4_1740482855.xml · nonDerivative · entry 3

Fernandez Henry A · CIK 0001416750 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,269,951

SEC source: 0001408198-25-000066 · wk-form4_1740482855.xml · nonDerivative · entry 2

Fernandez Henry A · CIK 0001416750 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,269,851

F2 · price: This transaction was executed in multiple trades at prices ranging from $574.645 to $575.61. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000066 · wk-form4_1740482855.xml · nonDerivative · entry 1

Fernandez Henry A · CIK 0001416750 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,265,151

F1 · price: This transaction was executed in multiple trades at prices ranging from $569.82 to $570.00. The price reported above reflects the weighted average purchase price. The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the issuer or the security holders of the issuer full information regarding the number of shares and prices at which each transaction was effected.

SEC source: 0001408198-25-000062 · wk-form4_1739221352.xml · nonDerivative · entry 2

Wiechmann Andrew C. · CIK 0001769683 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,077

F2 · shares: Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 2,269 PSUs granted on February 6, 2020 (includes the performance adjustment as described above).

SEC source: 0001408198-25-000062 · wk-form4_1739221352.xml · nonDerivative · entry 1

Wiechmann Andrew C. · CIK 0001769683 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,332

F1 · shares: Represents the number of shares of common stock issued following the vesting and conversion of performance stock units ("PSUs") granted to the reporting person on February 6, 2020, upon certification by the Compensation, Talent and Culture Committee on February 6, 2025 of the achievement of the performance metric for the performance period from February 5, 2020 to February 4, 2025.

SEC source: 0001408198-25-000064 · wk-form4_1739221387.xml · nonDerivative · entry 2

Gutowski Robert J. · CIK 0001797266 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,569

F2 · shares: Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 1,815 PSUs granted on February 6, 2020 (includes the performance adjustment as described above).

SEC source: 0001408198-25-000064 · wk-form4_1739221387.xml · nonDerivative · entry 1

Gutowski Robert J. · CIK 0001797266 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,496

F1 · shares: Represents the number of shares of common stock issued following the vesting and conversion of performance stock units ("PSUs") granted to the reporting person on February 6, 2020, upon certification by the Compensation, Talent and Culture Committee on February 6, 2025 of the achievement of the performance metric for the performance period from February 5, 2020 to February 4, 2025.

SEC source: 0001408198-25-000060 · wk-form4_1739221306.xml · nonDerivative · entry 2

Fernandez Henry A · CIK 0001416750 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,264,651

F2 · shares: Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 58,370 PSUs granted on February 6, 2020 (includes the performance adjustment as described above).

SEC source: 0001408198-25-000060 · wk-form4_1739221306.xml · nonDerivative · entry 1

Fernandez Henry A · CIK 0001416750 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,296,930

F1 · shares: Represents the number of shares of common stock issued following the vesting and conversion of performance stock units ("PSUs") granted to the reporting person on February 6, 2020, upon certification by the Compensation, Talent and Culture Committee on February 6, 2025 of the achievement of the performance metric for the performance period from February 5, 2020 to February 4, 2025.

SEC source: 0001408198-25-000061 · wk-form4_1739221331.xml · nonDerivative · entry 2

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 304,787

F2 · shares: Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 25,943 PSUs granted on February 6, 2020 (includes the performance adjustment as described above).

SEC source: 0001408198-25-000061 · wk-form4_1739221331.xml · nonDerivative · entry 1

Pettit CD Baer · CIK 0001416752 · Director · President & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 316,981

F1 · shares: Represents the number of shares of common stock issued following the vesting and conversion of performance stock units ("PSUs") granted to the reporting person on February 6, 2020, upon certification by the Compensation, Talent and Culture Committee on February 6, 2025 of the achievement of the performance metric for the performance period from February 5, 2020 to February 4, 2025.

SEC source: 0001408198-25-000063 · wk-form4_1739221370.xml · nonDerivative · entry 2

Crum Scott A · CIK 0001204559 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,898

F2 · shares: Represents shares reacquired by MSCI Inc. to satisfy tax withholding obligations in connection with the vesting and conversion to shares of 5,446 PSUs granted on February 6, 2020 (includes the performance adjustment as described above).

SEC source: 0001408198-25-000063 · wk-form4_1739221370.xml · nonDerivative · entry 1

Crum Scott A · CIK 0001204559 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,003

F1 · shares: Represents the number of shares of common stock issued following the vesting and conversion of performance stock units ("PSUs") granted to the reporting person on February 6, 2020, upon certification by the Compensation, Talent and Culture Committee on February 6, 2025 of the achievement of the performance metric for the performance period from February 5, 2020 to February 4, 2025.