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These shares were sold in multiple transactions at prices ranging from $66.76 to $67.75. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. 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These shares were sold in multiple transactions at prices ranging from $104.80 to $105.79."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":120864,"source":{"system":"sec-edgar","filing":"0001381197-24-000077","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000077/form4.xml","form_type":"4"}},{"id":1632835,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-20T21:55:07.000Z","date":"2024-02-15","kind":"sale","planned":true,"acquired":false,"shares":4000,"price":104.92,"value":419680.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.50 to $105.08."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":123770,"source":{"system":"sec-edgar","filing":"0001381197-24-000077","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000077/form4.xml","form_type":"4"}},{"id":1632834,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-20T21:55:07.000Z","date":"2024-02-15","kind":"sale","planned":true,"acquired":false,"shares":500,"price":103.57,"value":51785.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.50 to $104.49."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":127770,"source":{"system":"sec-edgar","filing":"0001381197-24-000077","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000077/form4.xml","form_type":"4"}},{"id":1632833,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-20T21:55:07.000Z","date":"2024-02-15","kind":"sale","planned":true,"acquired":false,"shares":3400,"price":102.83,"value":349622.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.50 to $103.49."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":128270,"source":{"system":"sec-edgar","filing":"0001381197-24-000077","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000077/form4.xml","form_type":"4"}},{"id":1632832,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-20T21:55:07.000Z","date":"2024-02-15","kind":"sale","planned":true,"acquired":false,"shares":2100,"price":102.02,"value":214242.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.50 to $102.49. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. 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These shares were sold in multiple transactions at prices ranging from $101.88 to $102.31."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":133770,"source":{"system":"sec-edgar","filing":"0001381197-24-000075","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000075/form4.xml","form_type":"4"}},{"id":1640694,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-15T21:54:01.000Z","date":"2024-02-14","kind":"sale","planned":true,"acquired":false,"shares":10650,"price":101.28,"value":1078632.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $101.00 to $101.78."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":158770,"source":{"system":"sec-edgar","filing":"0001381197-24-000075","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000075/form4.xml","form_type":"4"}},{"id":1640692,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-15T21:54:01.000Z","date":"2024-02-13","kind":"sale","planned":true,"acquired":false,"shares":20809,"price":100.73,"value":2096090.57,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $96.31 to $96.69."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":208770,"source":{"system":"sec-edgar","filing":"0001381197-24-000071","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119724000071/form4.xml","form_type":"4"}},{"id":1656579,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2024-02-06T22:07:37.000Z","date":"2024-02-05","kind":"sale","planned":true,"acquired":false,"shares":24547,"price":95.67,"value":2348411.49,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $95.86 to $96.80. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. 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(b) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan (\"Plan\"); and (c) unvested restricted stock units that were awarded under the Plan."}],"balance_after":293688,"source":{"system":"sec-edgar","filing":"0001381197-23-000156","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119723000156/form4.xml","form_type":"4"}},{"id":1781848,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2023-09-13T22:42:35.000Z","date":"2023-08-10","kind":"other","planned":false,"acquired":true,"shares":174822,"price":86.85,"value":15183290.7,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"EN Holdings LLC, a limited liability company owned by the Reporting Person and his affiliates, distributed to its members the shares it acquired in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC."},{"field":"shares","element":"transactionShares","label":"F4","text":"Represents the number of securities distributed to the Reporting Person by EN Holdings LLC. 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These shares were sold in multiple transactions at prices ranging from $48.94 to $48.99, inclusive."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":41114,"source":{"system":"sec-edgar","filing":"0001567619-20-017079","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920017079/doc1.xml","form_type":"4"}},{"id":3022814,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-24T20:09:39.000Z","date":"2020-09-22","kind":"sale","acquired":false,"shares":38500,"price":48.56,"value":1869560.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.17 to $48.94, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (4) - (5) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":42114,"source":{"system":"sec-edgar","filing":"0001567619-20-017079","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920017079/doc1.xml","form_type":"4"}},{"id":3025796,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-21T20:24:55.000Z","date":"2020-09-18","kind":"sale","acquired":false,"shares":16200,"price":48.03,"value":778086.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.81 to $48.22, inclusive."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":80614,"source":{"system":"sec-edgar","filing":"0001567619-20-016940","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016940/doc1.xml","form_type":"4"}},{"id":3025795,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-21T20:24:55.000Z","date":"2020-09-17","kind":"sale","acquired":false,"shares":8100,"price":47.79,"value":387099.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.74 to $47.88, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (4) - (5) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":96814,"source":{"system":"sec-edgar","filing":"0001567619-20-016940","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016940/doc1.xml","form_type":"4"}},{"id":3027925,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-17T21:24:42.000Z","date":"2020-09-16","kind":"sale","acquired":false,"shares":20255,"price":47.71,"value":966366.05,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.61 to $47.85, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":104914,"source":{"system":"sec-edgar","filing":"0001567619-20-016843","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016843/doc1.xml","form_type":"4"}},{"id":3031090,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-15T20:37:08.000Z","date":"2020-09-14","kind":"sale","acquired":false,"shares":11700,"price":47.9,"value":560430.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.70 to $48.14, inclusive."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":125169,"source":{"system":"sec-edgar","filing":"0001567619-20-016740","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016740/doc1.xml","form_type":"4"}},{"id":3031089,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-15T20:37:08.000Z","date":"2020-09-11","kind":"sale","acquired":false,"shares":11400,"price":47.66,"value":543324.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.60 to $48.06, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (4) - (5) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":136869,"source":{"system":"sec-edgar","filing":"0001567619-20-016740","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016740/doc1.xml","form_type":"4"}},{"id":3033033,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-11T20:19:52.000Z","date":"2020-09-10","kind":"sale","acquired":false,"shares":300,"price":48,"value":14400.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":148269,"source":{"system":"sec-edgar","filing":"0001567619-20-016640","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016640/doc1.xml","form_type":"4"}},{"id":3033032,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-11T20:19:52.000Z","date":"2020-09-09","kind":"sale","acquired":false,"shares":9600,"price":48.38,"value":464448.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.00 to $48.84, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote (4) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":148569,"source":{"system":"sec-edgar","filing":"0001567619-20-016640","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016640/doc1.xml","form_type":"4"}},{"id":3035200,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-09T20:57:22.000Z","date":"2020-09-08","kind":"sale","acquired":false,"shares":600,"price":50.59,"value":30354.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.51 to $50.64."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":158169,"source":{"system":"sec-edgar","filing":"0001567619-20-016580","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016580/doc1.xml","form_type":"4"}},{"id":3035199,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-09T20:57:22.000Z","date":"2020-09-08","kind":"sale","acquired":false,"shares":14005,"price":49.63,"value":695068.15,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.51 to $50.50."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":158769,"source":{"system":"sec-edgar","filing":"0001567619-20-016580","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016580/doc1.xml","form_type":"4"}},{"id":3035198,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-09T20:57:22.000Z","date":"2020-09-08","kind":"sale","acquired":false,"shares":15895,"price":48.87,"value":776788.65,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.51 to $49.50, inclusive."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":172774,"source":{"system":"sec-edgar","filing":"0001567619-20-016580","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016580/doc1.xml","form_type":"4"}},{"id":3035197,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-09T20:57:22.000Z","date":"2020-09-04","kind":"sale","acquired":false,"shares":3000,"price":53.44,"value":160320.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.55 to $53.46."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":188669,"source":{"system":"sec-edgar","filing":"0001567619-20-016580","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016580/doc1.xml","form_type":"4"}},{"id":3035196,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-09T20:57:22.000Z","date":"2020-09-04","kind":"sale","acquired":false,"shares":20127,"price":51.93,"value":1045195.11,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.55 to $52.54, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (4) - (8) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":191669,"source":{"system":"sec-edgar","filing":"0001567619-20-016580","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016580/doc1.xml","form_type":"4"}},{"id":3037332,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-04T21:20:48.000Z","date":"2020-09-03","kind":"sale","acquired":false,"shares":3300,"price":53.34,"value":176022.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.28 to $53.47, inclusive."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":211796,"source":{"system":"sec-edgar","filing":"0001567619-20-016498","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016498/doc1.xml","form_type":"4"}},{"id":3037331,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-04T21:20:48.000Z","date":"2020-09-03","kind":"sale","acquired":false,"shares":40500,"price":52.62,"value":2131110.0,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.28 to $53.27, inclusive."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":215096,"source":{"system":"sec-edgar","filing":"0001567619-20-016498","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016498/doc1.xml","form_type":"4"}},{"id":3037330,"issuer":{"id":279,"kind":"organization","name":"Interactive Brokers Group, Inc.","symbol":"IBKR"},"owners":[{"id":26587,"kind":"person","name":"Nemser Earl H","position":1,"cik":"0001391400","reported_name":"Nemser Earl H","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice Chairman"}}],"security":"Class A common stock","published_at":"2020-09-04T21:20:48.000Z","date":"2020-09-02","kind":"sale","acquired":false,"shares":55497,"price":53.29,"value":2957435.13,"ownership":{"direct":false,"nature":"By EN Holdings LLC"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by EN Holdings LLC, which is owned by the reporting person and his affiliates."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.18 to $53.56, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the \"Company\"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (4) - (6) to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates."}],"balance_after":255596,"source":{"system":"sec-edgar","filing":"0001567619-20-016498","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1381197/000156761920016498/doc1.xml","form_type":"4"}}],"next_cursor":"2020-09-04T21:20:48.000000Z,3037330"}