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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 23,781 shares of common stock, and the PSOs are scheduled to vest on February 2, 2026."}],"balance_after":23781,"derivative":{"exercise_price":554.52,"exercise_date":"2026-02-02","expiration_date":"2033-02-02","underlying":"Common Stock","underlying_shares":23781},"source":{"system":"sec-edgar","filing":"0001416752-26-000002","document":"wk-form4_1769634228.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000141675226000002/wk-form4_1769634228.xml","form_type":"4"}},{"id":1119451,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-06-06T16:00:31.000Z","date":"2025-06-05","kind":"sale","planned":true,"acquired":false,"shares":309,"price":568.93,"value":175799.37,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":284787,"source":{"system":"sec-edgar","filing":"0001408198-25-000169","document":"wk-form4_1749240024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000169/wk-form4_1749240024.xml","form_type":"4"}},{"id":1119450,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-06-06T16:00:31.000Z","date":"2025-06-05","kind":"sale","planned":true,"acquired":false,"shares":1,"price":566.32,"value":566.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":285096,"source":{"system":"sec-edgar","filing":"0001408198-25-000169","document":"wk-form4_1749240024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000169/wk-form4_1749240024.xml","form_type":"4"}},{"id":1119449,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-06-06T16:00:31.000Z","date":"2025-06-05","kind":"sale","planned":true,"acquired":false,"shares":100,"price":565.53,"value":56553.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":285097,"source":{"system":"sec-edgar","filing":"0001408198-25-000169","document":"wk-form4_1749240024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000169/wk-form4_1749240024.xml","form_type":"4"}},{"id":1119448,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-06-06T16:00:31.000Z","date":"2025-06-05","kind":"sale","planned":true,"acquired":false,"shares":1109,"price":564.17,"value":625664.53,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $563.88 to $564.79. 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."}],"balance_after":285197,"source":{"system":"sec-edgar","filing":"0001408198-25-000169","document":"wk-form4_1749240024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000169/wk-form4_1749240024.xml","form_type":"4"}},{"id":1119447,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-06-06T16:00:31.000Z","date":"2025-06-05","kind":"sale","planned":true,"acquired":false,"shares":2151,"price":563.27,"value":1211593.77,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $562.86 to $563.84. 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."}],"balance_after":286306,"source":{"system":"sec-edgar","filing":"0001408198-25-000169","document":"wk-form4_1749240024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000169/wk-form4_1749240024.xml","form_type":"4"}},{"id":1119446,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-06-06T16:00:31.000Z","date":"2025-06-05","kind":"sale","planned":true,"acquired":false,"shares":1330,"price":562.35,"value":747925.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $561.835 to $562.79. 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."}],"balance_after":288457,"source":{"system":"sec-edgar","filing":"0001408198-25-000169","document":"wk-form4_1749240024.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000169/wk-form4_1749240024.xml","form_type":"4"}},{"id":1156086,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-05-07T16:00:31.000Z","date":"2025-05-05","kind":"sale","planned":true,"acquired":false,"shares":372,"price":554.82,"value":206393.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":289787,"source":{"system":"sec-edgar","filing":"0001408198-25-000148","document":"wk-form4_1746648022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000148/wk-form4_1746648022.xml","form_type":"4"}},{"id":1156085,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-05-07T16:00:31.000Z","date":"2025-05-05","kind":"sale","planned":true,"acquired":false,"shares":2008,"price":553.25,"value":1110926.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."}],"balance_after":290159,"source":{"system":"sec-edgar","filing":"0001408198-25-000148","document":"wk-form4_1746648022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000148/wk-form4_1746648022.xml","form_type":"4"}},{"id":1156084,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-05-07T16:00:31.000Z","date":"2025-05-05","kind":"sale","planned":true,"acquired":false,"shares":1886,"price":552.03,"value":1041128.58,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."}],"balance_after":292167,"source":{"system":"sec-edgar","filing":"0001408198-25-000148","document":"wk-form4_1746648022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000148/wk-form4_1746648022.xml","form_type":"4"}},{"id":1156083,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-05-07T16:00:31.000Z","date":"2025-05-05","kind":"sale","planned":true,"acquired":false,"shares":734,"price":551.11,"value":404514.74,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":294053,"source":{"system":"sec-edgar","filing":"0001408198-25-000148","document":"wk-form4_1746648022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000148/wk-form4_1746648022.xml","form_type":"4"}},{"id":1176542,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":6,"price":535.49,"value":3212.94,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":294787,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176541,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":566,"price":533.09,"value":301728.94,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":294793,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176540,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":250,"price":529.32,"value":132330.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"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."}],"balance_after":295359,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176539,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":100,"price":528.02,"value":52802.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."}],"balance_after":295609,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176538,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":235,"price":526.12,"value":123638.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"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."}],"balance_after":295709,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176537,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":585,"price":524.6,"value":306891.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"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."}],"balance_after":295944,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176536,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":736,"price":523.55,"value":385332.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."}],"balance_after":296529,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176535,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":794,"price":522.79,"value":415095.26,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."}],"balance_after":297265,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176534,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":1479,"price":521.12,"value":770736.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."}],"balance_after":298059,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1176533,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-04-07T16:03:57.000Z","date":"2025-04-04","kind":"sale","planned":true,"acquired":false,"shares":249,"price":519.95,"value":129467.55,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":299538,"source":{"system":"sec-edgar","filing":"0001408198-25-000103","document":"wk-form4_1744056231.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000103/wk-form4_1744056231.xml","form_type":"4"}},{"id":1217230,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-03-07T16:01:39.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":417,"price":569.62,"value":237531.54,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"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."}],"balance_after":299787,"source":{"system":"sec-edgar","filing":"0001408198-25-000085","document":"wk-form4_1741381291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000085/wk-form4_1741381291.xml","form_type":"4"}},{"id":1217229,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-03-07T16:01:39.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":2006,"price":568.87,"value":1141153.22,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"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."}],"balance_after":300204,"source":{"system":"sec-edgar","filing":"0001408198-25-000085","document":"wk-form4_1741381291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000085/wk-form4_1741381291.xml","form_type":"4"}},{"id":1217228,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-03-07T16:01:39.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":2377,"price":567.92,"value":1349945.84,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"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."}],"balance_after":302210,"source":{"system":"sec-edgar","filing":"0001408198-25-000085","document":"wk-form4_1741381291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000085/wk-form4_1741381291.xml","form_type":"4"}},{"id":1217227,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-03-07T16:01:39.000Z","date":"2025-03-05","kind":"sale","planned":true,"acquired":false,"shares":200,"price":565.78,"value":113156.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 4, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"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."}],"balance_after":304587,"source":{"system":"sec-edgar","filing":"0001408198-25-000085","document":"wk-form4_1741381291.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000085/wk-form4_1741381291.xml","form_type":"4"}},{"id":1276386,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-02-10T16:02:18.000Z","date":"2025-02-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":12194,"price":587.48,"value":7163731.12,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"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)."}],"balance_after":304787,"source":{"system":"sec-edgar","filing":"0001408198-25-000061","document":"wk-form4_1739221331.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000061/wk-form4_1739221331.xml","form_type":"4"}},{"id":1276385,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2025-02-10T16:02:18.000Z","date":"2025-02-06","kind":"grant","planned":false,"acquired":true,"shares":25943,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"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."}],"balance_after":316981,"source":{"system":"sec-edgar","filing":"0001408198-25-000061","document":"wk-form4_1739221331.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819825000061/wk-form4_1739221331.xml","form_type":"4"}},{"id":1291773,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Option to purchase common stock","published_at":"2025-01-29T16:08:27.000Z","date":"2025-01-27","kind":"grant","planned":false,"acquired":true,"shares":16260,"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 27, 2025 of the achievement of the performance condition applicable to the PSOs. The PSOs were granted on February 3, 2022 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, 2022 and ending on December 31, 2024. 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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":291038,"source":{"system":"sec-edgar","filing":"0001408198-24-000080","document":"wk-form4_1714137545.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000140819824000080/wk-form4_1714137545.xml","form_type":"4"}},{"id":1655167,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common 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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."}],"balance_after":240020,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480462,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":100,"price":603.46,"value":60346.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":240598,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480461,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":100,"price":601.46,"value":60146.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":240698,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480460,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":350,"price":600.32,"value":210112.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $600.01 to $600.63. 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."}],"balance_after":240798,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480459,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":58,"price":598.78,"value":34729.24,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":241148,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480458,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":92,"price":597.49,"value":54969.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $597.42 to $597.57. 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."}],"balance_after":241206,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480457,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":722,"price":596.83,"value":430911.26,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $596.39 to $597.33. 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."}],"balance_after":241298,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480456,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":300,"price":595.08,"value":178524.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $594.80 to $595.395. 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."}],"balance_after":242020,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2480455,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-12-08T16:01:13.000Z","date":"2021-12-06","kind":"sale","acquired":false,"shares":200,"price":593.99,"value":118798.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $593.66 to $594.31. 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."}],"balance_after":242320,"source":{"system":"sec-edgar","filing":"0001209191-21-068504","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121068504/doc4.xml","form_type":"4"}},{"id":2521320,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":8,"price":664.78,"value":5318.24,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":242520,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521319,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":192,"price":663.7,"value":127430.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F12","text":"This transaction was executed in multiple trades at prices ranging from $663.37 to $664.18. 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."}],"balance_after":242528,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521318,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":345,"price":662.62,"value":228603.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F11","text":"This transaction was executed in multiple trades at prices ranging from $662.31 to $663.31. 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."}],"balance_after":242720,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521317,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":270,"price":661.87,"value":178704.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"This transaction was executed in multiple trades at prices ranging from $661.30 to $662.11. 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."}],"balance_after":243065,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521316,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":303,"price":660.68,"value":200186.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"This transaction was executed in multiple trades at prices ranging from $660.285 to $661.27. 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."}],"balance_after":243335,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521315,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":297,"price":659.59,"value":195898.23,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"This transaction was executed in multiple trades at prices ranging from $659.19 to $660.16. 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."}],"balance_after":243638,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521314,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":238,"price":658.41,"value":156701.58,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $658.08 to $658.96. 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."}],"balance_after":243935,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521313,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":165,"price":657.49,"value":108485.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $656.98 to $657.89. 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."}],"balance_after":244173,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521312,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":246,"price":655.66,"value":161292.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $655.48 to $656.33. 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."}],"balance_after":244338,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521311,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":105,"price":655.16,"value":68791.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $654.36 to $655.20. 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."}],"balance_after":244584,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521310,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":95,"price":653.43,"value":62075.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $653.10 to $653.73. 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."}],"balance_after":244689,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521309,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":50,"price":649.47,"value":32473.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":244784,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521308,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":146,"price":648.55,"value":94688.3,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $647.95 to $648.93. 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."}],"balance_after":244834,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2521307,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-11-08T16:15:23.000Z","date":"2021-11-04","kind":"sale","acquired":false,"shares":40,"price":646.5,"value":25860.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":244980,"source":{"system":"sec-edgar","filing":"0001209191-21-063376","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121063376/doc4.xml","form_type":"4"}},{"id":2547077,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":50,"price":609.76,"value":30488.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":245020,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547076,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":798,"price":607.71,"value":484952.58,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $607.62 to $608.00. 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."}],"balance_after":245070,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547075,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":150,"price":606.38,"value":90957.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $606.20 to $606.74. 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."}],"balance_after":245868,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547074,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":100,"price":604.64,"value":60464.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":246018,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547073,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":372,"price":603.27,"value":224416.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $602.86 to $603.75. 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."}],"balance_after":246118,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547072,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":101,"price":601.97,"value":60798.97,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $601.82 to $602.20. 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."}],"balance_after":246490,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547071,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":529,"price":601.21,"value":318040.09,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $600.79 to $601.76. 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."}],"balance_after":246591,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2547070,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-10-06T16:01:29.000Z","date":"2021-10-04","kind":"sale","acquired":false,"shares":400,"price":600,"value":240000.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $599.69 to $600.40. 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."}],"balance_after":247120,"source":{"system":"sec-edgar","filing":"0001209191-21-059806","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121059806/doc4.xml","form_type":"4"}},{"id":2575834,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":38,"price":654.98,"value":24889.24,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F11","text":"This transaction was executed in multiple trades at prices ranging from $654.92 to $654.99. 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."}],"balance_after":247520,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575833,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":134,"price":653.11,"value":87516.74,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"This transaction was executed in multiple trades at prices ranging from $652.94 to $653.62. 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."}],"balance_after":247558,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575832,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":224,"price":651.9,"value":146025.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"This transaction was executed in multiple trades at prices ranging from $651.75 to $651.91. 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."}],"balance_after":247692,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575831,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":520,"price":650.62,"value":338322.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"This transaction was executed in multiple trades at prices ranging from $650.54 to $651.38. 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."}],"balance_after":247916,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575830,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":195,"price":649.68,"value":126687.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $649.00 to $649.855. 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."}],"balance_after":248436,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575829,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":50,"price":647.98,"value":32399.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $647.96 to $648.76. 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."}],"balance_after":248631,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575828,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":355,"price":646.7,"value":229578.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $646.41 to $646.985. 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."}],"balance_after":248681,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575827,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":325,"price":645.89,"value":209914.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $645.41 to $646.385. 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."}],"balance_after":249036,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575826,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":255,"price":644.63,"value":164380.65,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $644.14 to $645.01. 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."}],"balance_after":249361,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2575825,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-09-08T16:03:17.000Z","date":"2021-09-07","kind":"sale","acquired":false,"shares":404,"price":643.71,"value":260058.84,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $643.08 to $644.04. 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."}],"balance_after":249616,"source":{"system":"sec-edgar","filing":"0001209191-21-055126","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121055126/doc4.xml","form_type":"4"}},{"id":2612888,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-08-05T16:03:34.000Z","date":"2021-08-04","kind":"sale","acquired":false,"shares":100,"price":626.22,"value":62622.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $626.06 to $626.38. 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."}],"balance_after":250020,"source":{"system":"sec-edgar","filing":"0001209191-21-049913","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121049913/doc4.xml","form_type":"4"}},{"id":2612887,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-08-05T16:03:34.000Z","date":"2021-08-04","kind":"sale","acquired":false,"shares":617,"price":624.55,"value":385347.35,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"This transaction was executed in multiple trades at prices ranging from $624.16 to $625.00. 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."}],"balance_after":250120,"source":{"system":"sec-edgar","filing":"0001209191-21-049913","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121049913/doc4.xml","form_type":"4"}},{"id":2612886,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-08-05T16:03:34.000Z","date":"2021-08-04","kind":"sale","acquired":false,"shares":550,"price":623.53,"value":342941.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $623.00 to $623.99. 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."}],"balance_after":250737,"source":{"system":"sec-edgar","filing":"0001209191-21-049913","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121049913/doc4.xml","form_type":"4"}},{"id":2612885,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-08-05T16:03:34.000Z","date":"2021-08-04","kind":"sale","acquired":false,"shares":550,"price":622.36,"value":342298.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $622.00 to $622.99. 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."}],"balance_after":251287,"source":{"system":"sec-edgar","filing":"0001209191-21-049913","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121049913/doc4.xml","form_type":"4"}},{"id":2612884,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-08-05T16:03:34.000Z","date":"2021-08-04","kind":"sale","acquired":false,"shares":683,"price":621.05,"value":424177.15,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $620.77 to $621.54. 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."}],"balance_after":251837,"source":{"system":"sec-edgar","filing":"0001209191-21-049913","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121049913/doc4.xml","form_type":"4"}},{"id":2639265,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-07-07T16:09:30.000Z","date":"2021-07-06","kind":"sale","acquired":false,"shares":7,"price":546.08,"value":3822.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":252520,"source":{"system":"sec-edgar","filing":"0001209191-21-045781","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121045781/doc4.xml","form_type":"4"}},{"id":2639264,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-07-07T16:09:30.000Z","date":"2021-07-06","kind":"sale","acquired":false,"shares":483,"price":545.05,"value":263259.15,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $545.03 to $545.082. 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."}],"balance_after":252527,"source":{"system":"sec-edgar","filing":"0001209191-21-045781","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121045781/doc4.xml","form_type":"4"}},{"id":2639263,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-07-07T16:09:30.000Z","date":"2021-07-06","kind":"sale","acquired":false,"shares":854,"price":544.18,"value":464729.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $543.967 to $544.753. 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."}],"balance_after":253010,"source":{"system":"sec-edgar","filing":"0001209191-21-045781","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121045781/doc4.xml","form_type":"4"}},{"id":2639262,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-07-07T16:09:30.000Z","date":"2021-07-06","kind":"sale","acquired":false,"shares":1156,"price":543,"value":627708.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $542.38 to $543.30. 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."}],"balance_after":253864,"source":{"system":"sec-edgar","filing":"0001209191-21-045781","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121045781/doc4.xml","form_type":"4"}},{"id":2677382,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-06-08T16:00:45.000Z","date":"2021-06-04","kind":"sale","acquired":false,"shares":675,"price":465,"value":313875.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $464.63 to $465.555. 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."}],"balance_after":255020,"source":{"system":"sec-edgar","filing":"0001209191-21-038863","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121038863/doc4.xml","form_type":"4"}},{"id":2677381,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-06-08T16:00:45.000Z","date":"2021-06-04","kind":"sale","acquired":false,"shares":1500,"price":463.64,"value":695460.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $463.39 to $464.31. 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."}],"balance_after":255695,"source":{"system":"sec-edgar","filing":"0001209191-21-038863","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121038863/doc4.xml","form_type":"4"}},{"id":2677380,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-06-08T16:00:45.000Z","date":"2021-06-04","kind":"sale","acquired":false,"shares":325,"price":462.47,"value":150302.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $462.03 to $462.92. 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."}],"balance_after":257195,"source":{"system":"sec-edgar","filing":"0001209191-21-038863","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121038863/doc4.xml","form_type":"4"}},{"id":2725013,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-05-06T16:00:44.000Z","date":"2021-05-04","kind":"sale","acquired":false,"shares":400,"price":486.21,"value":194484.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."}],"balance_after":257520,"source":{"system":"sec-edgar","filing":"0001209191-21-030598","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121030598/doc4.xml","form_type":"4"}},{"id":2725012,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-05-06T16:00:44.000Z","date":"2021-05-04","kind":"sale","acquired":false,"shares":560,"price":485.06,"value":271633.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $484.59 to $485.26. 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."}],"balance_after":257920,"source":{"system":"sec-edgar","filing":"0001209191-21-030598","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121030598/doc4.xml","form_type":"4"}},{"id":2725011,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-05-06T16:00:44.000Z","date":"2021-05-04","kind":"sale","acquired":false,"shares":900,"price":483.75,"value":435375.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $483.57 to $483.85. 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."}],"balance_after":258480,"source":{"system":"sec-edgar","filing":"0001209191-21-030598","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121030598/doc4.xml","form_type":"4"}},{"id":2725010,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-05-06T16:00:44.000Z","date":"2021-05-04","kind":"sale","acquired":false,"shares":640,"price":482.49,"value":308793.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 2, 2020."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $482.18 to $482.92. 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."}],"balance_after":259380,"source":{"system":"sec-edgar","filing":"0001209191-21-030598","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121030598/doc4.xml","form_type":"4"}},{"id":2754173,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-04-07T16:17:22.000Z","date":"2021-04-05","kind":"sale","acquired":false,"shares":1159,"price":431.57,"value":500189.63,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 29, 2019."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $431.39 to $431.85. 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."}],"balance_after":260020,"source":{"system":"sec-edgar","filing":"0001209191-21-025863","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121025863/doc4.xml","form_type":"4"}},{"id":2754172,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-04-07T16:17:22.000Z","date":"2021-04-05","kind":"sale","acquired":false,"shares":623,"price":430.4,"value":268139.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 29, 2019."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $430.04 to $430.62. 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."}],"balance_after":261179,"source":{"system":"sec-edgar","filing":"0001209191-21-025863","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121025863/doc4.xml","form_type":"4"}},{"id":2754171,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-04-07T16:17:22.000Z","date":"2021-04-05","kind":"sale","acquired":false,"shares":718,"price":429.4,"value":308309.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 29, 2019."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at prices ranging from $428.967 to $429.83. 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."}],"balance_after":261802,"source":{"system":"sec-edgar","filing":"0001209191-21-025863","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121025863/doc4.xml","form_type":"4"}},{"id":2802937,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-03-08T16:03:08.000Z","date":"2021-03-04","kind":"sale","acquired":false,"shares":200,"price":413.21,"value":82642.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"This transaction was executed in multiple trades at prices ranging from $413.00 to $413.41. 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."}],"balance_after":262520,"source":{"system":"sec-edgar","filing":"0001209191-21-018509","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121018509/doc4.xml","form_type":"4"}},{"id":2802936,"issuer":{"id":3075,"kind":"organization","name":"MSCI Inc.","symbol":"MSCI"},"owners":[{"id":68593,"kind":"person","name":"Pettit CD Baer","position":1,"cik":"0001416752","reported_name":"Pettit CD Baer","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Common Stock","published_at":"2021-03-08T16:03:08.000Z","date":"2021-03-04","kind":"sale","acquired":false,"shares":300,"price":409.92,"value":122976.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 29, 2019."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"This transaction was executed in multiple trades at prices ranging from $409.636 to $410.49. 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."}],"balance_after":262720,"source":{"system":"sec-edgar","filing":"0001209191-21-018509","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1416752/000120919121018509/doc4.xml","form_type":"4"}}],"next_cursor":"2021-03-08T16:03:08.000000Z,2802936"}