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Frank Thomas AJ

Disclosed activity across 1 company

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43456
SEC CIK
0001391401

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Interactive Brokers Group, Inc.IBKR · Entity 279Executive Vice PresidentMay 08, 2026May 28, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Interactive Brokers Group, Inc.

Report date May 08, 2026 · Filed May 28, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A common stockSEC Table I · non-derivativeDirect251,518 Reported balance After 2026-05-08 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-05-08 · Tax withholding · Disposed 31,730 · Balance 251,518

F1: The price represents the closing price of the issuer's Class A common stock as of May 8, 2026, the vesting date.

F2: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan.

Filing footnotes · ownership attribution and instrument terms

F1: The price represents the closing price of the issuer's Class A common stock as of May 8, 2026, the vesting date.

F2: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
November 03, 2017 Filed Nov 6, 2017 20:07 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 35,696 $53.82 $1,921,158.72
Disclosure

SEC source: 0001140361-17-041125 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 55,184

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.55 to $54.46, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
November 02, 2017 Filed Nov 6, 2017 20:08 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,222 $55.18 $67,429.96
Disclosure

SEC source: 0001140361-17-041126 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 90,880

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.12 to $55.32, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
November 02, 2017 Filed Nov 6, 2017 20:08 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 35,411 $54.81 $1,940,876.91
Disclosure

SEC source: 0001140361-17-041126 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 92,102

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.12 to $55.11, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
November 02, 2017 Filed Nov 6, 2017 20:07 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,222 $55.18 $67,429.96
Disclosure

SEC source: 0001140361-17-041125 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 90,880

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.12 to $55.32, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
November 02, 2017 Filed Nov 6, 2017 20:07 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 35,411 $54.81 $1,940,876.91
Disclosure

SEC source: 0001140361-17-041125 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 92,102

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.12 to $55.11, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
November 01, 2017 Filed Nov 3, 2017 00:31 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 36,632 $53.96 $1,976,662.72
Disclosure

SEC source: 0001140361-17-040841 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 127,513

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.63 to $54.41, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 31, 2017 Filed Nov 3, 2017 00:31 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 36,633 $53.84 $1,972,320.72
Disclosure

SEC source: 0001140361-17-040841 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 164,145

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.37 to $54.14, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 30, 2017 Filed Oct 31, 2017 22:44 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 36,633 $53.25 $1,950,707.25
Disclosure

SEC source: 0001140361-17-040352 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 200,778

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.84 to $53.61, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 27, 2017 Filed Oct 31, 2017 22:44 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 2,258 $53.47 $120,735.26
Disclosure

SEC source: 0001140361-17-040352 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 237,411

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.32 to $53.69, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 27, 2017 Filed Oct 31, 2017 22:44 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 5,893 $52.99 $312,270.07
Disclosure

SEC source: 0001140361-17-040352 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 239,669

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.32 to $53.31, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 26, 2017 Filed Oct 27, 2017 17:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 5,965 $52.64 $313,997.60
Disclosure

SEC source: 0001140361-17-039780 · doc1.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 245,562

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.46 to $52.99, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 26, 2017 Filed Oct 27, 2017 17:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 7,289 $52.11 $379,829.79
Disclosure

SEC source: 0001140361-17-039780 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 251,527

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.46 to $52.45, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 25, 2017 Filed Oct 27, 2017 17:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,421 $51.44 $73,096.24
Disclosure

SEC source: 0001140361-17-039780 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 258,816

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.31 to $51.54, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 25, 2017 Filed Oct 27, 2017 17:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,089 $50.79 $766,370.31
Disclosure

SEC source: 0001140361-17-039780 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 260,237

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.31 to $51.30, 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) - (7) to this Form 4.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 24, 2017 Filed Oct 25, 2017 23:56 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,194 $51.08 $827,189.52
Disclosure

SEC source: 0001140361-17-039597 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 275,326

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.70 to $51.26, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 23, 2017 Filed Oct 25, 2017 23:56 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 3,295 $50.42 $166,133.90
Disclosure

SEC source: 0001140361-17-039597 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 291,520

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.36 to $50.59, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 23, 2017 Filed Oct 25, 2017 23:56 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 13,181 $50.02 $659,313.62
Disclosure

SEC source: 0001140361-17-039597 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 294,815

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.36 to $50.35, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 20, 2017 Filed Oct 24, 2017 00:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $49.43 $832,895.50
Disclosure

SEC source: 0001140361-17-039300 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 307,996

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.04 to $49.73, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 19, 2017 Filed Oct 24, 2017 00:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 4,427 $49.55 $219,357.85
Disclosure

SEC source: 0001140361-17-039300 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 324,846

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.43 to $49.81, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 19, 2017 Filed Oct 24, 2017 00:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 12,423 $49.24 $611,708.52
Disclosure

SEC source: 0001140361-17-039300 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 329,273

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.43 to $49.42, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 18, 2017 Filed Oct 19, 2017 23:40 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,093 $50.17 $406,025.81
Disclosure

SEC source: 0001140361-17-039113 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 341,696

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.88 to $50.56, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 18, 2017 Filed Oct 19, 2017 23:40 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,757 $49.68 $435,047.76
Disclosure

SEC source: 0001140361-17-039113 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 349,789

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.88 to $49.87, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 17, 2017 Filed Oct 19, 2017 23:40 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $47.34 $797,679.00
Disclosure

SEC source: 0001140361-17-039113 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 358,546

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.20 to $47.42, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 16, 2017 Filed Oct 17, 2017 21:14 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $47.49 $800,206.50
Disclosure

SEC source: 0001140361-17-038882 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 375,396

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.38 to $47.62, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 13, 2017 Filed Oct 17, 2017 21:14 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,765 $47.66 $799,019.90
Disclosure

SEC source: 0001140361-17-038882 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 392,246

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.38 to $47.76, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 12, 2017 Filed Oct 13, 2017 18:14 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,663 $47.84 $797,157.92
Disclosure

SEC source: 0001140361-17-038619 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 409,011

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.64 to $48.00, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 11, 2017 Filed Oct 13, 2017 18:14 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,109 $47.65 $767,593.85
Disclosure

SEC source: 0001140361-17-038619 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 425,674

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.29 to $47.86, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 10, 2017 Filed Oct 11, 2017 16:46 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $47.24 $795,994.00
Disclosure

SEC source: 0001140361-17-038143 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 441,783

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.06 to $47.50, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 09, 2017 Filed Oct 11, 2017 16:46 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,127 $47.63 $768,129.01
Disclosure

SEC source: 0001140361-17-038143 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 458,633

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.40 to $47.78, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 06, 2017 Filed Oct 10, 2017 21:40 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $47.47 $799,869.50
Disclosure

SEC source: 0001140361-17-038088 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 474,760

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.00 to $47.94, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 05, 2017 Filed Oct 10, 2017 21:40 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,416 $47.59 $781,237.44
Disclosure

SEC source: 0001140361-17-038088 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 491,610

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.29 to $47.92, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 04, 2017 Filed Oct 5, 2017 15:13 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $47.29 $796,836.50
Disclosure

SEC source: 0001140361-17-037701 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 508,026

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.08 to $47.52, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 03, 2017 Filed Oct 5, 2017 15:13 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,255 $46.90 $762,359.50
Disclosure

SEC source: 0001140361-17-037701 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 524,876

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.40 to $47.22, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 02, 2017 Filed Oct 3, 2017 18:54 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,855 $46.19 $85,682.45
Disclosure

SEC source: 0001140361-17-037324 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 541,131

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.04 to $46.39, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
October 02, 2017 Filed Oct 3, 2017 18:54 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 14,339 $45.51 $652,567.89
Disclosure

SEC source: 0001140361-17-037324 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 542,986

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.04 to $46.03, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 29, 2017 Filed Oct 3, 2017 18:54 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,757 $44.88 $752,054.16
Disclosure

SEC source: 0001140361-17-037324 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 557,325

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.55 to $45.05, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 28, 2017 Filed Sep 29, 2017 19:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,569 $44.78 $741,959.82
Disclosure

SEC source: 0001140361-17-036918 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 574,082

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.43 to $44.98, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 27, 2017 Filed Sep 29, 2017 19:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,340 $44.25 $723,045.00
Disclosure

SEC source: 0001140361-17-036918 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 590,651

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.95 to $44.50, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 26, 2017 Filed Sep 27, 2017 18:11 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,965 $43.74 $698,309.10
Disclosure

SEC source: 0001140361-17-036582 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 606,991

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.53 to $44.06, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 25, 2017 Filed Sep 27, 2017 18:11 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,488 $44.09 $682,865.92
Disclosure

SEC source: 0001140361-17-036582 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 622,956

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.94 to $44.27, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 22, 2017 Filed Sep 25, 2017 21:38 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,255 $43.75 $711,156.25
Disclosure

SEC source: 0001140361-17-036373 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 638,444

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.39 to $44.15, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 21, 2017 Filed Sep 25, 2017 21:38 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,475 $43.42 $715,344.50
Disclosure

SEC source: 0001140361-17-036373 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 654,699

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.20 to $43.89, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 20, 2017 Filed Sep 21, 2017 21:20 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,974 $43.59 $696,306.66
Disclosure

SEC source: 0001140361-17-036143 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 671,174

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.17 to $44.05, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 19, 2017 Filed Sep 21, 2017 21:20 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,569 $43.33 $717,934.77
Disclosure

SEC source: 0001140361-17-036143 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 687,148

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.75 to $43.56, 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) - (5) to this Form 4.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 18, 2017 Filed Sep 19, 2017 20:50 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,850 $42.66 $718,821.00
Disclosure

SEC source: 0001140361-17-035924 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 703,717

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.97 to $42.85, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 15, 2017 Filed Sep 19, 2017 20:50 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,418 $41.96 $353,219.28
Disclosure

SEC source: 0001140361-17-035924 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 720,567

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.78 to $42.21, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 14, 2017 Filed Sep 15, 2017 16:12 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,248 $42.05 $346,828.40
Disclosure

SEC source: 0001140361-17-035626 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 728,985

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.95 to $42.20, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 13, 2017 Filed Sep 15, 2017 16:12 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,418 $41.83 $352,124.94
Disclosure

SEC source: 0001140361-17-035626 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 737,233

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.65 to $41.99, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 12, 2017 Filed Sep 13, 2017 20:24 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,418 $41.86 $352,377.48
Disclosure

SEC source: 0001140361-17-035326 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 745,651

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.70 to $42.10, inclusive.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document
September 11, 2017 Filed Sep 13, 2017 20:24 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 8,418 $41.94 $353,050.92
Disclosure

SEC source: 0001140361-17-035326 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By IBG Holdings LLC

Disclosed balance after: 754,069

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect August 2, 2017.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.60 to $42.16, 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.

F2 · balance_after: Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.