{"transactions":[{"id":4621367,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-09-17T20:27:47.000Z","date":"2026-09-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":51,"price":272.46,"value":13895.46,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person."}],"balance_after":25762,"source":{"system":"sec-edgar","filing":"0001638430-26-000004","document":"wk-form4_1789676862.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1638430/000163843026000004/wk-form4_1789676862.xml","form_type":"4"}},{"id":4621366,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-09-17T20:27:47.000Z","date":"2026-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":205,"price":275.09,"value":56393.45,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person."}],"balance_after":25813,"source":{"system":"sec-edgar","filing":"0001638430-26-000004","document":"wk-form4_1789676862.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1638430/000163843026000004/wk-form4_1789676862.xml","form_type":"4"}},{"id":4621365,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-09-17T20:27:47.000Z","date":"2026-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":47,"price":275.09,"value":12929.23,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person."}],"balance_after":26018,"source":{"system":"sec-edgar","filing":"0001638430-26-000004","document":"wk-form4_1789676862.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1638430/000163843026000004/wk-form4_1789676862.xml","form_type":"4"}},{"id":4621364,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-09-17T20:27:47.000Z","date":"2026-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":44,"price":275.09,"value":12103.96,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock previously granted to the Reporting Person."}],"balance_after":26065,"source":{"system":"sec-edgar","filing":"0001638430-26-000004","document":"wk-form4_1789676862.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1638430/000163843026000004/wk-form4_1789676862.xml","form_type":"4"}},{"id":4621363,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-09-17T20:27:47.000Z","date":"2026-09-15","kind":"grant","planned":false,"acquired":true,"shares":700,"price":275.09,"value":192563.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a grant of restricted stock under the CME Group Omnibus Stock Plan, vesting in four equal annual installments, subject to continued service."}],"balance_after":26109,"source":{"system":"sec-edgar","filing":"0001638430-26-000004","document":"wk-form4_1789676862.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1638430/000163843026000004/wk-form4_1789676862.xml","form_type":"4"}},{"id":838825,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-03-17T16:23:17.000Z","date":"2026-03-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":179,"price":311.4,"value":55740.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the company in order to fulfill tax withholding obligations related to the receipt of the performance share award."}],"balance_after":25409,"source":{"system":"sec-edgar","filing":"0001628280-26-018535","document":"wk-form4_1773764594.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000162828026018535/wk-form4_1773764594.xml","form_type":"4"}},{"id":838824,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-03-17T16:23:17.000Z","date":"2026-03-15","kind":"grant","planned":false,"acquired":true,"shares":608,"price":311.4,"value":189331.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the vesting of performance shares granted in 2022 under CME Group's Omnibus Stock Plan. The number of shares was determined based on the company's achievement of total shareholder return relative to the S&P 500 measured over a three-year performance period from January 1, 2023 through December 31, 2025."}],"balance_after":25588,"source":{"system":"sec-edgar","filing":"0001628280-26-018535","document":"wk-form4_1773764594.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000162828026018535/wk-form4_1773764594.xml","form_type":"4"}},{"id":846783,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2026-03-12T21:48:01.000Z","date":"2026-03-11","kind":"gift","planned":false,"acquired":false,"shares":105,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":24980,"source":{"system":"sec-edgar","filing":"0001628280-26-017394","document":"wk-form4_1773352078.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000162828026017394/wk-form4_1773352078.xml","form_type":"4"}},{"id":1038289,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2025-09-17T17:48:44.000Z","date":"2025-09-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":57,"price":259.83,"value":14810.31,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on September 16, 2025."}],"balance_after":25085,"source":{"system":"sec-edgar","filing":"0001638430-25-000005","document":"wk-form4_1758131321.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000163843025000005/wk-form4_1758131321.xml","form_type":"4"}},{"id":1038288,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2025-09-17T17:48:44.000Z","date":"2025-09-15","kind":"grant","planned":false,"acquired":true,"shares":1546,"price":258.83,"value":400151.18,"ownership":{"direct":true},"balance_after":25142,"source":{"system":"sec-edgar","filing":"0001638430-25-000005","document":"wk-form4_1758131321.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000163843025000005/wk-form4_1758131321.xml","form_type":"4"}},{"id":1038287,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2025-09-17T17:48:44.000Z","date":"2025-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":143,"price":258.83,"value":37012.69,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on September 15, 2025."}],"balance_after":23596,"source":{"system":"sec-edgar","filing":"0001638430-25-000005","document":"wk-form4_1758131321.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000163843025000005/wk-form4_1758131321.xml","form_type":"4"}},{"id":1200907,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2025-03-18T16:17:48.000Z","date":"2025-03-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":91,"price":258.68,"value":23539.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":23739,"source":{"system":"sec-edgar","filing":"0001156375-25-000046","document":"wk-form4_1742314663.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637525000046/wk-form4_1742314663.xml","form_type":"4"}},{"id":1200906,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2025-03-18T16:17:48.000Z","date":"2025-03-15","kind":"grant","planned":false,"acquired":true,"shares":308,"price":258.68,"value":79673.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"For the PSAs granted in September 2021: Represents shares earned from a 2021 performance share award based on the company's achievement of total shareholder return relative to the S&P 500 measured over 2022-2024."}],"balance_after":23830,"source":{"system":"sec-edgar","filing":"0001156375-25-000046","document":"wk-form4_1742314663.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637525000046/wk-form4_1742314663.xml","form_type":"4"}},{"id":1238960,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2025-02-28T20:33:20.000Z","date":"2025-02-27","kind":"gift","planned":false,"acquired":false,"shares":43,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction represented a gift of securities from the reporting person to his adult children, who do not share the reporting person's household."}],"balance_after":23522,"source":{"system":"sec-edgar","filing":"0001156375-25-000027","document":"wk-form4_1740774793.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637525000027/wk-form4_1740774793.xml","form_type":"4"}},{"id":1405536,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2024-09-17T23:10:41.000Z","date":"2024-09-16","kind":"grant","planned":false,"acquired":true,"shares":852,"price":218.53,"value":186187.56,"ownership":{"direct":true},"balance_after":23565,"source":{"system":"sec-edgar","filing":"0001156375-24-000172","document":"wk-form4_1726614635.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637524000172/wk-form4_1726614635.xml","form_type":"4"}},{"id":1405535,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2024-09-17T23:10:41.000Z","date":"2024-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":252,"price":216.99,"value":54681.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on September 15, 2024."}],"balance_after":22713,"source":{"system":"sec-edgar","filing":"0001156375-24-000172","document":"wk-form4_1726614635.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637524000172/wk-form4_1726614635.xml","form_type":"4"}},{"id":1569811,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2024-03-19T15:23:12.000Z","date":"2024-03-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":479,"price":217.5,"value":104182.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Mr. Tobin  surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 3/15/2024."}],"balance_after":22965,"source":{"system":"sec-edgar","filing":"0001156375-24-000044","document":"wk-form4_1710861782.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637524000044/wk-form4_1710861782.xml","form_type":"4"}},{"id":1569810,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2024-03-19T15:23:12.000Z","date":"2024-03-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":159,"price":217.5,"value":34582.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":23444,"source":{"system":"sec-edgar","filing":"0001156375-24-000044","document":"wk-form4_1710861782.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637524000044/wk-form4_1710861782.xml","form_type":"4"}},{"id":1569809,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2024-03-19T15:23:12.000Z","date":"2024-03-15","kind":"grant","planned":false,"acquired":true,"shares":541,"price":217.5,"value":117667.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares earned from a 2020 performance share award based on the company's achievement of total shareholder return relative to the S&P 500 measured over 2021-2023."}],"balance_after":23603,"source":{"system":"sec-edgar","filing":"0001156375-24-000044","document":"wk-form4_1710861782.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637524000044/wk-form4_1710861782.xml","form_type":"4"}},{"id":1587318,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2024-03-08T15:41:32.000Z","date":"2024-03-07","kind":"gift","planned":false,"acquired":false,"shares":72,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction represented a gift of securities from the reporting person to his adult children, who do not share the reporting person's household."}],"balance_after":23062,"source":{"system":"sec-edgar","filing":"0001156375-24-000014","document":"wk-form4_1709912484.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637524000014/wk-form4_1709912484.xml","form_type":"4"}},{"id":1779218,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2023-09-18T22:08:38.000Z","date":"2023-09-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":47,"price":206.82,"value":9720.54,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/16/2023."}],"balance_after":23134,"source":{"system":"sec-edgar","filing":"0001156375-23-000150","document":"wk-form4_1695074908.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637523000150/wk-form4_1695074908.xml","form_type":"4"}},{"id":1779217,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2023-09-18T22:08:38.000Z","date":"2023-09-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":164,"price":206.82,"value":33918.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2023."}],"balance_after":23181,"source":{"system":"sec-edgar","filing":"0001156375-23-000150","document":"wk-form4_1695074908.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637523000150/wk-form4_1695074908.xml","form_type":"4"}},{"id":1779216,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2023-09-18T22:08:38.000Z","date":"2023-09-15","kind":"grant","planned":false,"acquired":true,"shares":872,"price":206.82,"value":180347.04,"ownership":{"direct":true},"balance_after":23345,"source":{"system":"sec-edgar","filing":"0001156375-23-000150","document":"wk-form4_1695074908.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637523000150/wk-form4_1695074908.xml","form_type":"4"}},{"id":2156208,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-09-19T23:10:28.000Z","date":"2022-09-14","kind":"tax_withholding","acquired":false,"shares":56,"price":191.3,"value":10712.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/14/2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This Form 4 is being amended to include the price at which shares were withheld for payment of taxes, which amount was inadvertently omitted from the original filing due to clerical error."}],"balance_after":21729,"source":{"system":"sec-edgar","filing":"0001156375-22-000295","document":"wf-form4a_166362901515628.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000295/wf-form4a_166362901515628.xml","form_type":"4/A","original_submission_date":"2022-09-15"}},{"id":2156191,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-09-19T23:04:32.000Z","date":"2022-09-16","kind":"tax_withholding","acquired":false,"shares":52,"price":191.56,"value":9961.12,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/16/2022."}],"balance_after":22473,"source":{"system":"sec-edgar","filing":"0001156375-22-000283","document":"wf-form4_166362820218918.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000283/wf-form4_166362820218918.xml","form_type":"4"}},{"id":2156190,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-09-19T23:04:32.000Z","date":"2022-09-15","kind":"grant","acquired":true,"shares":912,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":22525,"source":{"system":"sec-edgar","filing":"0001156375-22-000283","document":"wf-form4_166362820218918.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000283/wf-form4_166362820218918.xml","form_type":"4"}},{"id":2156189,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-09-19T23:04:32.000Z","date":"2022-09-15","kind":"tax_withholding","acquired":false,"shares":116,"price":190.77,"value":22129.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2022."}],"balance_after":21613,"source":{"system":"sec-edgar","filing":"0001156375-22-000283","document":"wf-form4_166362820218918.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000283/wf-form4_166362820218918.xml","form_type":"4"}},{"id":2158642,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-09-15T21:52:03.000Z","date":"2022-09-14","kind":"tax_withholding","acquired":false,"shares":56,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/14/2022."}],"balance_after":21729,"source":{"system":"sec-edgar","filing":"0001156375-22-000247","document":"wf-form4_166327870797666.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000247/wf-form4_166327870797666.xml","form_type":"4"}},{"id":2328295,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-03-17T20:45:09.000Z","date":"2022-03-15","kind":"grant","acquired":true,"shares":2048,"price":232,"value":475136.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"On March 15, 2022, the reporting person was granted restricted shares, vesting in four equal annual installments on the first four anniversaries of the grant date, subject to the restricted share agreement."}],"balance_after":21785,"source":{"system":"sec-edgar","filing":"0001156375-22-000135","document":"wf-form4_164754989005994.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000135/wf-form4_164754989005994.xml","form_type":"4"}},{"id":2328294,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-03-17T20:45:09.000Z","date":"2022-03-15","kind":"tax_withholding","acquired":false,"shares":73,"price":232,"value":16936.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":19737,"source":{"system":"sec-edgar","filing":"0001156375-22-000135","document":"wf-form4_164754989005994.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000135/wf-form4_164754989005994.xml","form_type":"4"}},{"id":2328293,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-03-17T20:45:09.000Z","date":"2022-03-15","kind":"grant","acquired":true,"shares":247,"price":232,"value":57304.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares earned from a 2018 performance share award based on the company's achievement of total shareholder return relative to the S&P 500 measured over 2019-2021."}],"balance_after":19810,"source":{"system":"sec-edgar","filing":"0001156375-22-000135","document":"wf-form4_164754989005994.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000135/wf-form4_164754989005994.xml","form_type":"4"}},{"id":2398672,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-02-15T01:39:59.000Z","date":"2020-03-15","kind":"tax_withholding","acquired":false,"shares":145,"price":182.01,"value":26391.45,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F5","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"The original Form 4 filed on March 15, 2020 incorrectly reported 17,906 shares held directly. This amendment is being filed to correctly report the amount as 18,445 shares held directly."}],"balance_after":18445,"source":{"system":"sec-edgar","filing":"0001156375-22-000061","document":"wf-form4a_164488916556921.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000061/wf-form4a_164488916556921.xml","form_type":"4/A","original_submission_date":"2020-03-15"}},{"id":2398671,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-02-15T01:39:59.000Z","date":"2020-03-15","kind":"grant","acquired":true,"shares":494,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares earned from a 2016 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2017-2019."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"The original Form 4 filed on March 15, 2020 incorrectly reported 18,051 shares held directly. This amendment is being filed to correctly report the amount as 18,590 shares held directly."}],"balance_after":18590,"source":{"system":"sec-edgar","filing":"0001156375-22-000061","document":"wf-form4a_164488916556921.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000061/wf-form4a_164488916556921.xml","form_type":"4/A","original_submission_date":"2020-03-15"}},{"id":2398670,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-02-15T01:39:59.000Z","date":"2020-03-15","kind":"tax_withholding","acquired":false,"shares":145,"price":182.01,"value":26391.45,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F5","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"The original Form 4 filed on March 15, 2020 incorrectly reported 17,557 shares held directly. This amendment is being filed to correctly report the amount as 18,096 shares held directly."}],"balance_after":18096,"source":{"system":"sec-edgar","filing":"0001156375-22-000061","document":"wf-form4a_164488916556921.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000061/wf-form4a_164488916556921.xml","form_type":"4/A","original_submission_date":"2020-03-15"}},{"id":2398669,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-02-15T01:39:59.000Z","date":"2020-03-15","kind":"grant","acquired":true,"shares":494,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares earned from a 2016 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2017-2019."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"The original Form 4 filed on March 15, 2020 incorrectly reported 17,702 shares held directly. This amendment is being filed to correctly report the amount as 18,241 shares held directly."}],"balance_after":18241,"source":{"system":"sec-edgar","filing":"0001156375-22-000061","document":"wf-form4a_164488916556921.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000061/wf-form4a_164488916556921.xml","form_type":"4/A","original_submission_date":"2020-03-15"}},{"id":2398668,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2022-02-15T01:39:59.000Z","date":"2020-02-25","kind":"gift","acquired":false,"shares":100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction represented a gift of securities from the reporting person to his children, who do not share the reporting person's household."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The original Form 4 filed on March 15, 2020 incorrectly reported 17,208 shares held directly. This amendment is being filed to correctly report the amount as 17,747 shares held directly."}],"balance_after":17747,"source":{"system":"sec-edgar","filing":"0001156375-22-000061","document":"wf-form4a_164488916556921.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637522000061/wf-form4a_164488916556921.xml","form_type":"4/A","original_submission_date":"2020-03-15"}},{"id":2468044,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-12-17T19:04:50.000Z","date":"2021-12-16","kind":"tax_withholding","acquired":false,"shares":65,"price":229.09,"value":14890.85,"ownership":{"direct":true},"balance_after":19024,"source":{"system":"sec-edgar","filing":"0001156375-21-000193","document":"wf-form4_163976787680115.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000193/wf-form4_163976787680115.xml","form_type":"4"}},{"id":2475993,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-12-14T02:24:46.000Z","date":"2021-12-10","kind":"gift","acquired":false,"shares":450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction involved a gift of securities from the reporting person to a charitable organization."}],"balance_after":19089,"source":{"system":"sec-edgar","filing":"0001156375-21-000191","document":"wf-form4_163944867157585.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000191/wf-form4_163944867157585.xml","form_type":"4"}},{"id":2486565,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-12-03T22:39:54.000Z","date":"2021-12-01","kind":"gift","acquired":false,"shares":90,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction represented a gift of securities from the reporting person to his adult children, who do not share the reporting person's household."}],"balance_after":19539,"source":{"system":"sec-edgar","filing":"0001156375-21-000187","document":"wf-form4_163857118217753.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000187/wf-form4_163857118217753.xml","form_type":"4"}},{"id":2566366,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-09-17T19:29:07.000Z","date":"2021-09-16","kind":"tax_withholding","acquired":false,"shares":58,"price":188.69,"value":10944.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/16/2021."}],"balance_after":19629,"source":{"system":"sec-edgar","filing":"0001156375-21-000145","document":"wf-form4_163190693493784.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000145/wf-form4_163190693493784.xml","form_type":"4"}},{"id":2568098,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-09-16T16:55:41.000Z","date":"2021-09-15","kind":"grant","acquired":true,"shares":852,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":19687,"source":{"system":"sec-edgar","filing":"0001156375-21-000127","document":"wf-form4_163181132847139.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000127/wf-form4_163181132847139.xml","form_type":"4"}},{"id":2568097,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-09-16T16:55:41.000Z","date":"2021-09-15","kind":"tax_withholding","acquired":false,"shares":65,"price":188.96,"value":12282.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2021."}],"balance_after":18835,"source":{"system":"sec-edgar","filing":"0001156375-21-000127","document":"wf-form4_163181132847139.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000127/wf-form4_163181132847139.xml","form_type":"4"}},{"id":2568096,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-09-16T16:55:41.000Z","date":"2021-09-15","kind":"tax_withholding","acquired":false,"shares":70,"price":188.96,"value":13227.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2021."}],"balance_after":18900,"source":{"system":"sec-edgar","filing":"0001156375-21-000127","document":"wf-form4_163181132847139.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000127/wf-form4_163181132847139.xml","form_type":"4"}},{"id":2568095,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-09-16T16:55:41.000Z","date":"2021-09-14","kind":"tax_withholding","acquired":false,"shares":62,"price":188.85,"value":11708.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Jack Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/14/2021."}],"balance_after":18970,"source":{"system":"sec-edgar","filing":"0001156375-21-000127","document":"wf-form4_163181132847139.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000127/wf-form4_163181132847139.xml","form_type":"4"}},{"id":2783207,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-03-18T00:25:29.000Z","date":"2021-03-15","kind":"tax_withholding","acquired":false,"shares":216,"price":209.09,"value":45163.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":19032,"source":{"system":"sec-edgar","filing":"0001156375-21-000036","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000036/edgardoc.xml","form_type":"4"}},{"id":2783206,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2021-03-18T00:25:29.000Z","date":"2021-03-15","kind":"grant","acquired":true,"shares":734,"price":209.09,"value":153472.06,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares earned from a 2017 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2018-2020."}],"balance_after":19248,"source":{"system":"sec-edgar","filing":"0001156375-21-000036","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637521000036/edgardoc.xml","form_type":"4"}},{"id":2938231,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-12-18T16:02:18.000Z","date":"2020-12-16","kind":"tax_withholding","acquired":false,"shares":69,"price":181.72,"value":12538.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 12/16/2020."}],"balance_after":18514,"source":{"system":"sec-edgar","filing":"0001156375-20-000129","document":"primary_doc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000129/primary_doc.xml","form_type":"4"}},{"id":3028891,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-09-17T22:02:34.000Z","date":"2020-09-16","kind":"tax_withholding","acquired":false,"shares":63,"price":170.2,"value":10722.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/16/2020."}],"balance_after":18583,"source":{"system":"sec-edgar","filing":"0001156375-20-000109","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000109/edgardoc.xml","form_type":"4"}},{"id":3028890,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-09-17T22:02:34.000Z","date":"2020-09-15","kind":"grant","acquired":true,"shares":956,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":18646,"source":{"system":"sec-edgar","filing":"0001156375-20-000109","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000109/edgardoc.xml","form_type":"4"}},{"id":3030455,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-09-17T01:33:01.000Z","date":"2020-09-15","kind":"tax_withholding","acquired":false,"shares":75,"price":168.1,"value":12607.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Jack J Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2020."}],"balance_after":17690,"source":{"system":"sec-edgar","filing":"0001156375-20-000096","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000096/edgardoc.xml","form_type":"4"}},{"id":3030454,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-09-17T01:33:01.000Z","date":"2020-09-15","kind":"tax_withholding","acquired":false,"shares":74,"price":168.1,"value":12439.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Jack J Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2020."}],"balance_after":17765,"source":{"system":"sec-edgar","filing":"0001156375-20-000096","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000096/edgardoc.xml","form_type":"4"}},{"id":3030453,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-09-17T01:33:01.000Z","date":"2020-09-14","kind":"tax_withholding","acquired":false,"shares":67,"price":166.08,"value":11127.36,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Jack J. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/14/2020."}],"balance_after":17839,"source":{"system":"sec-edgar","filing":"0001156375-20-000096","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000096/edgardoc.xml","form_type":"4"}},{"id":3205819,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-03-17T20:40:36.000Z","date":"2020-03-15","kind":"tax_withholding","acquired":false,"shares":145,"price":182.01,"value":26391.45,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":17906,"source":{"system":"sec-edgar","filing":"0001156375-20-000027","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000027/edgardoc.xml","form_type":"4"}},{"id":3205818,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-03-17T20:40:36.000Z","date":"2020-03-15","kind":"grant","acquired":true,"shares":494,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares earned from a 2016 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2017-2019."}],"balance_after":18051,"source":{"system":"sec-edgar","filing":"0001156375-20-000027","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000027/edgardoc.xml","form_type":"4"}},{"id":3205817,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-03-17T20:40:36.000Z","date":"2020-03-15","kind":"tax_withholding","acquired":false,"shares":145,"price":182.01,"value":26391.45,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":17557,"source":{"system":"sec-edgar","filing":"0001156375-20-000027","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000027/edgardoc.xml","form_type":"4"}},{"id":3205816,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-03-17T20:40:36.000Z","date":"2020-03-15","kind":"grant","acquired":true,"shares":494,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares earned from a 2016 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2017-2019."}],"balance_after":17702,"source":{"system":"sec-edgar","filing":"0001156375-20-000027","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000027/edgardoc.xml","form_type":"4"}},{"id":3205815,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2020-03-17T20:40:36.000Z","date":"2020-02-25","kind":"gift","acquired":false,"shares":100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This transaction represented a gift of securities from the reporting person to his children, who do not share the reporting person's household."}],"balance_after":17208,"source":{"system":"sec-edgar","filing":"0001156375-20-000027","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637520000027/edgardoc.xml","form_type":"4"}},{"id":3337222,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-12-18T21:33:04.000Z","date":"2019-12-16","kind":"grant","acquired":true,"shares":506,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":17847,"source":{"system":"sec-edgar","filing":"0001156375-19-000118","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000118/edgardoc.xml","form_type":"4"}},{"id":3412602,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-09-17T22:34:26.000Z","date":"2019-09-16","kind":"grant","acquired":true,"shares":932,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":17341,"source":{"system":"sec-edgar","filing":"0001156375-19-000103","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000103/edgardoc.xml","form_type":"4"}},{"id":3412601,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-09-17T22:34:26.000Z","date":"2019-09-15","kind":"tax_withholding","acquired":false,"shares":86,"price":205.8,"value":17698.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2019."}],"balance_after":16409,"source":{"system":"sec-edgar","filing":"0001156375-19-000103","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000103/edgardoc.xml","form_type":"4"}},{"id":3412600,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-09-17T22:34:26.000Z","date":"2019-09-15","kind":"tax_withholding","acquired":false,"shares":88,"price":205.8,"value":18110.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2019."}],"balance_after":16495,"source":{"system":"sec-edgar","filing":"0001156375-19-000103","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000103/edgardoc.xml","form_type":"4"}},{"id":3412599,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-09-17T22:34:26.000Z","date":"2019-09-15","kind":"tax_withholding","acquired":false,"shares":83,"price":205.8,"value":17081.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2019."}],"balance_after":16583,"source":{"system":"sec-edgar","filing":"0001156375-19-000103","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000103/edgardoc.xml","form_type":"4"}},{"id":3412598,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-09-17T22:34:26.000Z","date":"2019-09-14","kind":"tax_withholding","acquired":false,"shares":75,"price":205.8,"value":15435.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/14/2019."}],"balance_after":16666,"source":{"system":"sec-edgar","filing":"0001156375-19-000103","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000103/edgardoc.xml","form_type":"4"}},{"id":3588016,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-03-20T00:36:35.000Z","date":"2019-03-15","kind":"tax_withholding","acquired":false,"shares":149,"price":170.14,"value":25350.86,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":16741,"source":{"system":"sec-edgar","filing":"0001156375-19-000026","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000026/edgardoc.xml","form_type":"4"}},{"id":3588015,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-03-20T00:36:35.000Z","date":"2019-03-15","kind":"grant","acquired":true,"shares":508,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares earned from a 2015 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2016-2018."}],"balance_after":16890,"source":{"system":"sec-edgar","filing":"0001156375-19-000026","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000026/edgardoc.xml","form_type":"4"}},{"id":3588014,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-03-20T00:36:35.000Z","date":"2019-03-15","kind":"tax_withholding","acquired":false,"shares":149,"price":170.14,"value":25350.86,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":16382,"source":{"system":"sec-edgar","filing":"0001156375-19-000026","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000026/edgardoc.xml","form_type":"4"}},{"id":3588013,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2019-03-20T00:36:35.000Z","date":"2019-03-15","kind":"grant","acquired":true,"shares":508,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares earned from a 2015 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2016-2018."}],"balance_after":16531,"source":{"system":"sec-edgar","filing":"0001156375-19-000026","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637519000026/edgardoc.xml","form_type":"4"}},{"id":3741714,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-12-06T17:34:31.000Z","date":"2018-11-30","kind":"gift","acquired":false,"shares":539,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This transaction involved a gift of securities from the reporting person to his donor advised fund."}],"balance_after":16023,"source":{"system":"sec-edgar","filing":"0001156375-18-000136","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000136/edgardoc.xml","form_type":"4"}},{"id":3741713,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-12-06T17:34:31.000Z","date":"2018-11-29","kind":"gift","acquired":false,"shares":165,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction represented a gift of securities from the reporting person to his adult children, who do not share the reporting person's household."}],"balance_after":16562,"source":{"system":"sec-edgar","filing":"0001156375-18-000136","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000136/edgardoc.xml","form_type":"4"}},{"id":3813145,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-18T22:14:27.000Z","date":"2018-09-14","kind":"grant","acquired":true,"shares":1072,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":16727,"source":{"system":"sec-edgar","filing":"0001156375-18-000099","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000099/edgardoc.xml","form_type":"4"}},{"id":3813144,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-18T22:14:27.000Z","date":"2018-06-14","kind":"gift","acquired":false,"shares":99,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction involved a gift of securities from the reporting person to a charitable organization."}],"balance_after":15655,"source":{"system":"sec-edgar","filing":"0001156375-18-000099","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000099/edgardoc.xml","form_type":"4"}},{"id":3822388,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Non-Qualified Stock Option (right to buy)","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"exercise","acquired":false,"shares":1780,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"As of 9/15/2013, this option vested with respect to 100% of the granted number of shares covered by the option."}],"balance_after":0,"derivative":{"exercise_price":56.87,"exercise_date":"2013-09-15","expiration_date":"2019-09-15","underlying":"Common Stock Class A","underlying_shares":1780},"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822387,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Non-Qualified Stock Option (right to buy)","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"exercise","acquired":false,"shares":4940,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"As of 9/15/2015, this option vested with respect to 100% of the granted number of shares covered by the option."}],"balance_after":0,"derivative":{"exercise_price":54.37,"exercise_date":"2015-09-15","expiration_date":"2021-09-15","underlying":"Common Stock Class A","underlying_shares":4940},"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822386,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Non-Qualified Stock Option (right to buy)","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"exercise","acquired":false,"shares":1100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"As of 9/15/2014, this option vested with respect to 100% of the granted number of shares covered by the option."}],"balance_after":0,"derivative":{"exercise_price":54.3,"exercise_date":"2014-09-15","expiration_date":"2020-09-15","underlying":"Common Stock Class A","underlying_shares":1100},"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822385,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"sale","acquired":false,"shares":4940,"price":174.8653,"value":863834.582,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On September 5, 2018, Mr. Tobin sold an aggregate of 7,820 shares of CME Group Class A common stock. For reporting purposes, the sale prices within a $1 range have been aggregated and the weighted average has been reported. The price ranges were 173.02 to $173.99; $174.09 to $174.78; $175.07 to $175.98; $176.06 to $176.99; $177.05 to $177.31. The Company maintains a record of the transactions and copies will be provided upon request."}],"balance_after":15754,"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822384,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"exercise","acquired":true,"shares":4940,"price":54.37,"value":268587.8,"ownership":{"direct":true},"balance_after":20694,"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822383,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"sale","acquired":false,"shares":1100,"price":174.8653,"value":192351.83,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On September 5, 2018, Mr. Tobin sold an aggregate of 7,820 shares of CME Group Class A common stock. For reporting purposes, the sale prices within a $1 range have been aggregated and the weighted average has been reported. The price ranges were 173.02 to $173.99; $174.09 to $174.78; $175.07 to $175.98; $176.06 to $176.99; $177.05 to $177.31. The Company maintains a record of the transactions and copies will be provided upon request."}],"balance_after":15754,"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822382,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"exercise","acquired":true,"shares":1100,"price":54.3,"value":59730.0,"ownership":{"direct":true},"balance_after":16854,"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822381,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"sale","acquired":false,"shares":1780,"price":174.8653,"value":311260.234,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On September 5, 2018, Mr. Tobin sold an aggregate of 7,820 shares of CME Group Class A common stock. For reporting purposes, the sale prices within a $1 range have been aggregated and the weighted average has been reported. The price ranges were 173.02 to $173.99; $174.09 to $174.78; $175.07 to $175.98; $176.06 to $176.99; $177.05 to $177.31. The Company maintains a record of the transactions and copies will be provided upon request."}],"balance_after":15754,"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3822380,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-09-07T17:50:21.000Z","date":"2018-09-05","kind":"exercise","acquired":true,"shares":1780,"price":56.87,"value":101228.6,"ownership":{"direct":true},"balance_after":17534,"source":{"system":"sec-edgar","filing":"0001156375-18-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000088/edgardoc.xml","form_type":"4"}},{"id":3990028,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-03-19T22:32:16.000Z","date":"2018-03-15","kind":"tax_withholding","acquired":false,"shares":297,"price":165.66,"value":49201.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":15754,"source":{"system":"sec-edgar","filing":"0001156375-18-000038","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000038/edgardoc.xml","form_type":"4"}},{"id":3990027,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-03-19T22:32:16.000Z","date":"2018-03-15","kind":"grant","acquired":true,"shares":1012,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares earned from a 2014 performance share award based on the company's achievement of net income margin growth relative to the diversified financial services index of the S&P 500 and total shareholder return relative to the S&P 500 measured over 2015-2017."}],"balance_after":16051,"source":{"system":"sec-edgar","filing":"0001156375-18-000038","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000038/edgardoc.xml","form_type":"4"}},{"id":4073941,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2018-02-06T22:28:09.000Z","date":"2017-12-07","kind":"gift","acquired":false,"shares":210,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Gift by reporting person to his adult children not living in his household."}],"balance_after":15039,"source":{"system":"sec-edgar","filing":"0001156375-18-000011","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637518000011/edgardoc.xml","form_type":"5"}},{"id":4126688,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Non-Qualified Stock Option (right to buy)","published_at":"2017-12-19T17:56:48.000Z","date":"2017-12-18","kind":"exercise","acquired":false,"shares":2325,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As of 6/16/2013, this option vested with respect to 100% of the granted number of shares covered by the option."}],"balance_after":0,"derivative":{"exercise_price":83.88,"exercise_date":"2013-06-16","expiration_date":"2018-06-16","underlying":"Common Stock Class A","underlying_shares":2325},"source":{"system":"sec-edgar","filing":"0001156375-17-000119","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000119/edgardoc.xml","form_type":"4"}},{"id":4126687,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-12-19T17:56:48.000Z","date":"2017-12-18","kind":"sale","acquired":false,"shares":2325,"price":152.28,"value":354051.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1."}],"balance_after":15249,"source":{"system":"sec-edgar","filing":"0001156375-17-000119","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000119/edgardoc.xml","form_type":"4"}},{"id":4126686,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-12-19T17:56:48.000Z","date":"2017-12-18","kind":"exercise","acquired":true,"shares":2325,"price":83.88,"value":195021.0,"ownership":{"direct":true},"balance_after":17574,"source":{"system":"sec-edgar","filing":"0001156375-17-000119","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000119/edgardoc.xml","form_type":"4"}},{"id":4205959,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-09-19T18:39:09.000Z","date":"2017-09-16","kind":"tax_withholding","acquired":false,"shares":101,"price":131.29,"value":13260.29,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/16/17."}],"balance_after":15249,"source":{"system":"sec-edgar","filing":"0001156375-17-000100","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000100/edgardoc.xml","form_type":"4"}},{"id":4205958,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-09-19T18:39:09.000Z","date":"2017-09-15","kind":"tax_withholding","acquired":false,"shares":313,"price":131.29,"value":41093.77,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/17."}],"balance_after":15350,"source":{"system":"sec-edgar","filing":"0001156375-17-000100","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000100/edgardoc.xml","form_type":"4"}},{"id":4205957,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-09-19T18:39:09.000Z","date":"2017-09-15","kind":"grant","acquired":true,"shares":1336,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":15663,"source":{"system":"sec-edgar","filing":"0001156375-17-000100","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000100/edgardoc.xml","form_type":"4"}},{"id":4380332,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-03-17T22:37:35.000Z","date":"2017-03-15","kind":"grant","acquired":true,"shares":1208,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares earned from a 2013 performance share award based upon the company's achievement of cash earnings per share growth and total shareholder return relative to the S&P 500 measured over 2014-2016."}],"balance_after":14327,"source":{"system":"sec-edgar","filing":"0001156375-17-000035","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000035/edgardoc.xml","form_type":"4"}},{"id":4380331,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":true,"officer_title":"MD Chief Accounting Officer","other_text":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-03-17T22:37:35.000Z","date":"2017-03-15","kind":"tax_withholding","acquired":false,"shares":376,"price":124.74,"value":46902.24,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations in connection with the receipt of the performance share award."}],"balance_after":13119,"source":{"system":"sec-edgar","filing":"0001156375-17-000035","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000035/edgardoc.xml","form_type":"4"}},{"id":4498995,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Non-Qualified Stock Option (right to buy)","published_at":"2017-01-05T21:18:41.000Z","date":"2017-01-03","kind":"exercise","acquired":false,"shares":1525,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On September 14, 2012, these options vested with respect to 100% of the granted number of shares covered by the option."}],"balance_after":0,"derivative":{"exercise_price":109.72,"exercise_date":"2012-09-14","expiration_date":"2017-09-14","underlying":"Common Stock Class A","underlying_shares":1525},"source":{"system":"sec-edgar","filing":"0001156375-17-000002","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000002/edgardoc.xml","form_type":"4"}},{"id":4498994,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-01-05T21:18:41.000Z","date":"2017-01-03","kind":"sale","acquired":false,"shares":1525,"price":116.16,"value":177144.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1."}],"balance_after":13495,"source":{"system":"sec-edgar","filing":"0001156375-17-000002","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000002/edgardoc.xml","form_type":"4"}},{"id":4498993,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2017-01-05T21:18:41.000Z","date":"2017-01-03","kind":"exercise","acquired":true,"shares":1525,"price":109.72,"value":167323.0,"ownership":{"direct":true},"balance_after":15020,"source":{"system":"sec-edgar","filing":"0001156375-17-000002","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637517000002/edgardoc.xml","form_type":"4"}},{"id":4587415,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Non-Qualified Stock Option (right to buy)","published_at":"2016-10-04T19:10:42.000Z","date":"2016-10-03","kind":"exercise","acquired":false,"shares":3750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As of 7/12/2007, this option vested with respect to 100% of the granted number of shares covered by the option."}],"balance_after":0,"derivative":{"exercise_price":80.78,"exercise_date":"2007-07-12","expiration_date":"2017-01-02","underlying":"Common Stock Class A","underlying_shares":3750},"source":{"system":"sec-edgar","filing":"0001156375-16-000244","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637516000244/edgardoc.xml","form_type":"4"}},{"id":4587414,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2016-10-04T19:10:42.000Z","date":"2016-10-03","kind":"sale","acquired":false,"shares":3750,"price":104.09,"value":390337.5,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1."}],"balance_after":13495,"source":{"system":"sec-edgar","filing":"0001156375-16-000244","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637516000244/edgardoc.xml","form_type":"4"}},{"id":4587413,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2016-10-04T19:10:42.000Z","date":"2016-10-03","kind":"exercise","acquired":true,"shares":3750,"price":80.78,"value":302925.0,"ownership":{"direct":true},"balance_after":17245,"source":{"system":"sec-edgar","filing":"0001156375-16-000244","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637516000244/edgardoc.xml","form_type":"4"}},{"id":4600196,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2016-09-19T20:24:01.000Z","date":"2016-09-16","kind":"tax_withholding","acquired":false,"shares":102,"price":109.65,"value":11184.3,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/16/2016."}],"balance_after":13495,"source":{"system":"sec-edgar","filing":"0001156375-16-000237","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637516000237/edgardoc.xml","form_type":"4"}},{"id":4600195,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2016-09-19T20:24:01.000Z","date":"2016-09-15","kind":"grant","acquired":true,"shares":1484,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":13597,"source":{"system":"sec-edgar","filing":"0001156375-16-000237","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637516000237/edgardoc.xml","form_type":"4"}},{"id":4601672,"issuer":{"id":2909,"kind":"organization","name":"CME GROUP INC.","symbol":"CME"},"owners":[{"id":60125,"kind":"person","name":"Tobin Jack J","position":1,"cik":"0001638430","reported_name":"Tobin Jack J","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"MD Chief Accounting Officer"}}],"security":"Common Stock Class A","published_at":"2016-09-16T19:40:33.000Z","date":"2016-09-15","kind":"tax_withholding","acquired":false,"shares":211,"price":109.28,"value":23058.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Mr. Tobin surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on 9/15/2016."}],"balance_after":12113,"source":{"system":"sec-edgar","filing":"0001156375-16-000223","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1156375/000115637516000223/edgardoc.xml","form_type":"4"}}],"next_cursor":"2016-09-16T19:40:33.000000Z,4601672"}