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The Reporting Person hereby\nundertakes 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."}],"balance_after":1731961,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":774796,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T16:10:12.000Z","date":"2026-05-15","kind":"purchase","planned":false,"acquired":true,"shares":400,"price":564.42,"value":225768.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $564.12 to $564.74. The price reported above reflects the weighted average purchase price. The Reporting Person hereby\nundertakes 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."}],"balance_after":1731881,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":774795,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T16:10:12.000Z","date":"2026-05-15","kind":"purchase","planned":false,"acquired":true,"shares":800,"price":563.39,"value":450712.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $563.03 to $563.90. The price reported above reflects the weighted average purchase price. The Reporting Person hereby\nundertakes 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."}],"balance_after":1731481,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":774794,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T16:10:12.000Z","date":"2026-05-15","kind":"purchase","planned":false,"acquired":true,"shares":1122,"price":562.47,"value":631091.34,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $562.01 to $562.96. The price reported above reflects the weighted average purchase price. The Reporting Person hereby\nundertakes 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."}],"balance_after":1730681,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":774793,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T16:10:12.000Z","date":"2026-05-15","kind":"purchase","planned":false,"acquired":true,"shares":1238,"price":561.56,"value":695211.28,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $560.91 to $561.88. The price reported above reflects the weighted average purchase price. The Reporting Person hereby\nundertakes 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."}],"balance_after":1729559,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":774792,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T16:10:12.000Z","date":"2026-05-15","kind":"purchase","planned":false,"acquired":true,"shares":240,"price":560.28,"value":134467.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $559.90 to $560.75. The price reported above reflects the weighted average purchase price. The Reporting Person hereby\nundertakes 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."}],"balance_after":1728321,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":774791,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-05-18T16:10:12.000Z","date":"2026-05-15","kind":"purchase","planned":false,"acquired":true,"shares":120,"price":559.4,"value":67128.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $558.85 to $559.83. The price reported above reflects the weighted average purchase price. The Reporting Person hereby\nundertakes 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."}],"balance_after":1728081,"source":{"system":"sec-edgar","filing":"0001416750-26-000011","document":"wk-form4_1779135010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000011/wk-form4_1779135010.xml","form_type":"4"}},{"id":796762,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-04-30T16:05:20.000Z","date":"2026-04-28","kind":"gift","planned":false,"acquired":true,"shares":75707,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reported transaction reflects the distribution of the remaining shares held by the 2024 GRAT to The Fernandez 2007 Children's Trust upon the scheduled termination of the 2024 GRAT. The spouse of the Reporting Person is the trustee of The Fernandez 2007 Children's Trust."}],"balance_after":410776,"source":{"system":"sec-edgar","filing":"0001416750-26-000009","document":"wk-form4_1777579518.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000009/wk-form4_1777579518.xml","form_type":"4"}},{"id":796761,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-04-30T16:05:20.000Z","date":"2026-04-28","kind":"gift","planned":false,"acquired":false,"shares":75707,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Henry Fernandez 2024 MSCI Annuity Trust"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The balance shown reflects the transfer of 234,114 shares previously indirectly held by the Henry Fernandez 2024 MSCI Annuity Trust (the \"2024 GRAT\"), a grantor retained annuity trust established by the Reporting Person, to direct holdings of the Reporting Person, reflecting the final scheduled annuity payment from the 2024 GRAT."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reported transaction reflects the distribution of the remaining shares held by the 2024 GRAT to The Fernandez 2007 Children's Trust upon the scheduled termination of the 2024 GRAT. The spouse of the Reporting Person is the trustee of The Fernandez 2007 Children's Trust."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001416750-26-000009","document":"wk-form4_1777579518.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000009/wk-form4_1777579518.xml","form_type":"4"}},{"id":900815,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-02-17T18:02:45.000Z","date":"2026-02-17","kind":"purchase","planned":false,"acquired":true,"shares":200,"price":520,"value":104000.0,"ownership":{"direct":true},"balance_after":1493847,"source":{"system":"sec-edgar","filing":"0001416750-26-000006","document":"wk-form4_1771369363.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000006/wk-form4_1771369363.xml","form_type":"4"}},{"id":900814,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-02-17T18:02:45.000Z","date":"2026-02-17","kind":"purchase","planned":false,"acquired":true,"shares":360,"price":519.45,"value":187002.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $518.97 to $519.89. 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."}],"balance_after":1493647,"source":{"system":"sec-edgar","filing":"0001416750-26-000006","document":"wk-form4_1771369363.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000006/wk-form4_1771369363.xml","form_type":"4"}},{"id":900813,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-02-17T18:02:45.000Z","date":"2026-02-17","kind":"purchase","planned":false,"acquired":true,"shares":240,"price":517.32,"value":124156.8,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $516.77 to $517.67. 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."}],"balance_after":1493287,"source":{"system":"sec-edgar","filing":"0001416750-26-000006","document":"wk-form4_1771369363.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000006/wk-form4_1771369363.xml","form_type":"4"}},{"id":900812,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2026-02-17T18:02:45.000Z","date":"2026-02-13","kind":"purchase","planned":false,"acquired":true,"shares":6000,"price":524.18,"value":3145080.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $523.68 to $524.65. 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."}],"balance_after":1493047,"source":{"system":"sec-edgar","filing":"0001416750-26-000006","document":"wk-form4_1771369363.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000006/wk-form4_1771369363.xml","form_type":"4"}},{"id":928902,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Option to purchase common stock","published_at":"2026-01-28T16:02:44.000Z","date":"2026-01-26","kind":"grant","planned":false,"acquired":true,"shares":42193,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of performance stock options (\"PSOs\") to purchase common stock earned by the reporting person following the certification by the Compensation, Talent and Culture Committee on January 26, 2026 of the achievement of the performance condition applicable to the PSOs. The PSOs were granted on February 2, 2023 and vest on the third anniversary of the grant date, subject to continuous service through such date and satisfaction of the performance condition for the performance period from January 1, 2023 and ending on December 31, 2025. The performance condition for the PSOs was met with respect to 42,193 shares of common stock, and the PSOs are scheduled to vest on February 2, 2026."}],"balance_after":42193,"derivative":{"exercise_price":554.52,"exercise_date":"2026-02-02","expiration_date":"2033-02-02","underlying":"Common Stock","underlying_shares":42193},"source":{"system":"sec-edgar","filing":"0001416750-26-000003","document":"wk-form4_1769634162.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675026000003/wk-form4_1769634162.xml","form_type":"4"}},{"id":975923,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2025-12-09T06:38:10.000Z","date":"2025-12-05","kind":"purchase","planned":false,"acquired":true,"shares":40,"price":541.9,"value":21676.0,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"balance_after":335069,"source":{"system":"sec-edgar","filing":"0001416750-25-000005","document":"wk-form4_1765280287.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675025000005/wk-form4_1765280287.xml","form_type":"4"}},{"id":975922,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2025-12-09T06:38:10.000Z","date":"2025-12-05","kind":"purchase","planned":false,"acquired":true,"shares":240,"price":540.37,"value":129688.8,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F17","text":"This transaction was executed in multiple trades at prices ranging from $540.05 to $540.46. 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."}],"balance_after":335029,"source":{"system":"sec-edgar","filing":"0001416750-25-000005","document":"wk-form4_1765280287.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675025000005/wk-form4_1765280287.xml","form_type":"4"}},{"id":975921,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2025-12-09T06:38:10.000Z","date":"2025-12-05","kind":"purchase","planned":false,"acquired":true,"shares":114,"price":539.35,"value":61485.9,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F16","text":"This transaction was executed in multiple trades at prices ranging from $538.95 to $539.66. 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."}],"balance_after":334789,"source":{"system":"sec-edgar","filing":"0001416750-25-000005","document":"wk-form4_1765280287.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675025000005/wk-form4_1765280287.xml","form_type":"4"}},{"id":975920,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2025-12-09T06:38:10.000Z","date":"2025-12-05","kind":"purchase","planned":false,"acquired":true,"shares":80,"price":537.75,"value":43020.0,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"balance_after":334675,"source":{"system":"sec-edgar","filing":"0001416750-25-000005","document":"wk-form4_1765280287.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675025000005/wk-form4_1765280287.xml","form_type":"4"}},{"id":975919,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2025-12-09T06:38:10.000Z","date":"2025-12-05","kind":"purchase","planned":false,"acquired":true,"shares":317,"price":536.9,"value":170197.3,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F15","text":"This transaction was executed in multiple trades at prices ranging from $536.75 to $537.15. 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."}],"balance_after":334595,"source":{"system":"sec-edgar","filing":"0001416750-25-000005","document":"wk-form4_1765280287.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1416750/000141675025000005/wk-form4_1765280287.xml","form_type":"4"}},{"id":975918,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":46410,"kind":"person","name":"Fernandez Henry A","position":1,"cik":"0001416750","reported_name":"Fernandez Henry A","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman and CEO"}}],"security":"Common Stock","published_at":"2025-12-09T06:38:10.000Z","date":"2025-12-05","kind":"purchase","planned":false,"acquired":true,"shares":552,"price":536.02,"value":295883.04,"ownership":{"direct":false,"nature":"By Fernandez 2007 Children's Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F14","text":"This transaction was executed in multiple trades at prices ranging from $535.67 to $536.59. The price reported above reflects the weighted average purchase price. 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The price reported above reflects the weighted average purchase price. 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The price reported above reflects the weighted average purchase price. 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The price reported above reflects the weighted average purchase price. 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The price reported above reflects the weighted average purchase price. 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The price reported above reflects the weighted average purchase price. 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The price reported above reflects the weighted average purchase price. 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