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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
September 07, 2021 Filed Sep 9, 2021 20:10 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $64.68 $1,201,301.64
Disclosure

SEC source: 0001567619-21-016912 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,881,481

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.47 to $65.06. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
September 03, 2021 Filed Sep 7, 2021 20:25 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 17,157 $64.70 $1,110,057.90
Disclosure

SEC source: 0001567619-21-016793 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,900,054

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.50 to $65.28.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
September 02, 2021 Filed Sep 7, 2021 20:25 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $64.56 $1,199,072.88
Disclosure

SEC source: 0001567619-21-016793 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,917,211

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.19 to $65.07. 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 (3) - (4) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
September 01, 2021 Filed Sep 2, 2021 20:36 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 6,375 $65.51 $417,626.25
Disclosure

SEC source: 0001567619-21-016664 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,935,784

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.32 to $65.61.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
September 01, 2021 Filed Sep 2, 2021 20:36 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 12,198 $64.81 $790,552.38
Disclosure

SEC source: 0001567619-21-016664 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,942,159

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.32 to $65.31.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 31, 2021 Filed Sep 2, 2021 20:36 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 17,786 $64.59 $1,148,797.74
Disclosure

SEC source: 0001567619-21-016664 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,954,357

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.17 to $64.81. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 30, 2021 Filed Aug 31, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,574 $64.69 $1,201,552.06
Disclosure

SEC source: 0001567619-21-016504 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,972,143

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.33 to $65.13.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 27, 2021 Filed Aug 31, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 12,355 $65.04 $803,569.20
Disclosure

SEC source: 0001567619-21-016504 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,990,717

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.85 to $65.28.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 27, 2021 Filed Aug 31, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 5,903 $64.54 $380,979.62
Disclosure

SEC source: 0001567619-21-016504 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,003,072

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.85 to $64.84. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 26, 2021 Filed Aug 27, 2021 20:17 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $63.87 $1,186,257.51
Disclosure

SEC source: 0001567619-21-016410 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,008,975

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.75 to $64.08.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 25, 2021 Filed Aug 27, 2021 20:17 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 708 $64.12 $45,396.96
Disclosure

SEC source: 0001567619-21-016410 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,027,548

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.11 to $64.14.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 25, 2021 Filed Aug 27, 2021 20:17 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 17,708 $63.84 $1,130,478.72
Disclosure

SEC source: 0001567619-21-016410 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,028,256

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.11 to $64.10. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 24, 2021 Filed Aug 25, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $62.80 $1,166,384.40
Disclosure

SEC source: 0001567619-21-016328 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,045,964

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.19 to $63.18.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 23, 2021 Filed Aug 25, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $62.38 $1,158,583.74
Disclosure

SEC source: 0001567619-21-016328 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,064,537

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.07 to $62.76. 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 (3) - (4) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 20, 2021 Filed Aug 23, 2021 20:16 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 11,628 $61.82 $718,842.96
Disclosure

SEC source: 0001567619-21-016215 · doc1.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,083,110

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.70 to $62.05.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 20, 2021 Filed Aug 23, 2021 20:16 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 6,552 $61.43 $402,489.36
Disclosure

SEC source: 0001567619-21-016215 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,094,738

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.70 to $61.69.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 19, 2021 Filed Aug 23, 2021 20:16 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 2,638 $61.39 $161,946.82
Disclosure

SEC source: 0001567619-21-016215 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,101,290

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.21 to $61.54.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 19, 2021 Filed Aug 23, 2021 20:16 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,935 $60.77 $968,369.95
Disclosure

SEC source: 0001567619-21-016215 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,103,928

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.21 to $61.20. 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 (3) - (6) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 18, 2021 Filed Aug 19, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 3,227 $62.34 $201,171.18
Disclosure

SEC source: 0001567619-21-016119 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,119,863

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.29 to $62.48.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 18, 2021 Filed Aug 19, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,189 $62.04 $942,325.56
Disclosure

SEC source: 0001567619-21-016119 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,123,090

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.29 to $62.28.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 17, 2021 Filed Aug 19, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $61.58 $1,143,725.34
Disclosure

SEC source: 0001567619-21-016119 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,138,279

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.10 to $62.03. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 16, 2021 Filed Aug 17, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $62.38 $1,158,583.74
Disclosure

SEC source: 0001567619-21-015980 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,156,852

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.75 to $62.65.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 13, 2021 Filed Aug 17, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 555 $63.46 $35,220.30
Disclosure

SEC source: 0001567619-21-015980 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,175,425

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.45 to $63.48.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 13, 2021 Filed Aug 17, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,019 $63.03 $1,135,737.57
Disclosure

SEC source: 0001567619-21-015980 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,175,980

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.45 to $63.44. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
August 12, 2021 Filed Aug 13, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $63.55 $1,180,314.15
Disclosure

SEC source: 0001567619-21-015493 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,193,999

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.08 to $63.85.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 11, 2021 Filed Aug 13, 2021 20:02 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,573 $63.67 $1,182,542.91
Disclosure

SEC source: 0001567619-21-015493 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,212,572

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.34 to $64.13. 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 (3) - (4) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 10, 2021 Filed Aug 11, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 4,668 $64.08 $299,125.44
Disclosure

SEC source: 0001567619-21-015056 · doc1.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,231,145

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.95 to $64.19.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 10, 2021 Filed Aug 11, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 13,905 $63.42 $881,855.10
Disclosure

SEC source: 0001567619-21-015056 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,235,813

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.95 to $63.94.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 09, 2021 Filed Aug 11, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,854 $64.14 $118,915.56
Disclosure

SEC source: 0001567619-21-015056 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,249,718

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.07 to $64.26.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 09, 2021 Filed Aug 11, 2021 20:06 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,719 $63.73 $1,065,501.87
Disclosure

SEC source: 0001567619-21-015056 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,251,572

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.07 to $64.06. 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 (3) - (6) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 06, 2021 Filed Aug 9, 2021 20:01 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 4,329 $63.46 $274,718.34
Disclosure

SEC source: 0001567619-21-014724 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,268,291

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.38 to $63.55.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 06, 2021 Filed Aug 9, 2021 20:01 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 14,245 $62.92 $896,295.40
Disclosure

SEC source: 0001567619-21-014724 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,272,620

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.38 to $63.37.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 05, 2021 Filed Aug 9, 2021 20:01 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 18,258 $62.33 $1,138,021.14
Disclosure

SEC source: 0001567619-21-014724 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,286,865

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.98 to $62.71. 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 (3) - (5) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 04, 2021 Filed Aug 5, 2021 20:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 15,661 $62.07 $972,078.27
Disclosure

SEC source: 0001567619-21-014501 · doc1.xml · nonDerivative · entry 5

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,305,123

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.78 to $62.39.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 04, 2021 Filed Aug 5, 2021 20:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 2,912 $61.35 $178,651.20
Disclosure

SEC source: 0001567619-21-014501 · doc1.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,320,784

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.78 to $61.77.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 03, 2021 Filed Aug 5, 2021 20:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 236 $63.02 $14,872.72
Disclosure

SEC source: 0001567619-21-014501 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,323,696

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 03, 2021 Filed Aug 5, 2021 20:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,023 $62.21 $63,640.83
Disclosure

SEC source: 0001567619-21-014501 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,323,932

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.01 to $62.40.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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August 03, 2021 Filed Aug 5, 2021 20:19 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 16,527 $61.41 $1,014,923.07
Disclosure

SEC source: 0001567619-21-014501 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,324,955

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.01 to $62.00. 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 (3) - (6) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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July 30, 2021 Filed Aug 3, 2021 21:05 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 GrantClass A common stock 2,000,000 $61.86 $123,720,000.00
Disclosure

SEC source: 0001567619-21-014359 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,341,482

F1 · shares: Represents number of securities acquired by the Reporting Person, in a partial redemption of his 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.

F2 · price: The per share price provided represents the closing price of the issuer's Class A common stock on 7/30/2021, the date when the exchange described in footnote (1) took place.

F3 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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May 07, 2021 Filed May 24, 2021 20:07 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 Tax withholdingClass A common stock 6,959 $69.60 $484,346.40
Disclosure

SEC source: 0001567619-21-011046 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 341,482

F1 · price: The price represents the closing price of the issuer's Class A common stock as of May 7, 2021, the vesting date.

F2 · balance_after: 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.

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March 15, 2021 Filed Mar 16, 2021 22:35 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 1,311 $78.73 $103,215.03
Disclosure

SEC source: 0001567619-21-006446 · doc1.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 348,441

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.52 to $78.95.

F7 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan.

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March 15, 2021 Filed Mar 16, 2021 22:35 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 10,235 $77.97 $798,022.95
Disclosure

SEC source: 0001567619-21-006446 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 349,752

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.52 to $78.51.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
March 12, 2021 Filed Mar 16, 2021 22:35 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 3,651 $79.20 $289,159.20
Disclosure

SEC source: 0001567619-21-006446 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 359,987

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.99 to $79.52.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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March 12, 2021 Filed Mar 16, 2021 22:35 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 29,802 $78.35 $2,334,986.70
Disclosure

SEC source: 0001567619-21-006446 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 363,638

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.99 to $78.98. 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 (3) - (6) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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March 11, 2021 Filed Mar 12, 2021 21:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 29,059 $79.08 $2,297,985.72
Disclosure

SEC source: 0001567619-21-006207 · doc1.xml · nonDerivative · entry 5

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 393,440

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.69 to $79.57.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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March 11, 2021 Filed Mar 12, 2021 21:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 4,211 $78.41 $330,184.51
Disclosure

SEC source: 0001567619-21-006207 · doc1.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 422,499

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.69 to $78.68.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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March 10, 2021 Filed Mar 12, 2021 21:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 651 $80.08 $52,132.08
Disclosure

SEC source: 0001567619-21-006207 · doc1.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 426,710

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.00 to $80.38.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
March 10, 2021 Filed Mar 12, 2021 21:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 11,055 $79.40 $877,767.00
Disclosure

SEC source: 0001567619-21-006207 · doc1.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 427,361

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.00 to $79.99.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

Read SEC document
March 10, 2021 Filed Mar 12, 2021 21:04 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 21,473 $78.65 $1,688,851.45
Disclosure

SEC source: 0001567619-21-006207 · doc1.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 438,416

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.00 to $78.99. 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 (3) - (7) to this Form 4.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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March 09, 2021 Filed Mar 10, 2021 22:07 UTC Interactive Brokers Group, Inc. IBKR · Entity 279 SaleClass A common stock 10,794 $79.17 $854,560.98
Disclosure

SEC source: 0001567619-21-005993 · doc1.xml · nonDerivative · entry 6

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 459,889

F1 · shares: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.68 to $79.52.

F2 · balance_after: 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"); (b) unvested restricted stock units that were awarded under the Plan; and (c) securities acquired by the Reporting Person, in a partial redemption of his interest in IBG Holdings LLC.

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