Frank Thomas AJ

SEC source: 0001381197-24-000037 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 604,008

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.14 to $89.48.

F1 · 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.

SEC source: 0001381197-24-000037 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 604,641

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.14 to $89.13.

F1 · 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.

SEC source: 0001381197-24-000037 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 605,905

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.14 to $88.13. 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 (2) - (7) to this Form 4.

F1 · 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.

SEC source: 0001381197-24-000031 · form4.xml · nonDerivative · entry 6

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 616,835

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.68 to $88.73.

F1 · 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.

SEC source: 0001381197-24-000031 · form4.xml · nonDerivative · entry 5

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 617,106

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.68 to $88.67.

F1 · 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.

SEC source: 0001381197-24-000031 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 618,823

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.68 to $87.67.

F1 · 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.

SEC source: 0001381197-24-000031 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 630,023

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.00 to $87.48.

F1 · 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.

SEC source: 0001381197-24-000031 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 631,017

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.00 to $86.99.

F1 · 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.

SEC source: 0001381197-24-000031 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 637,069

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.00 to $85.99. 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 (2) - (7) to this Form 4.

F1 · 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.

SEC source: 0001381197-24-000023 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 643,212

F1 · shares: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest 20% on or about 5/9/2024 and 20% on each of the first four anniversaries of 5/9/2024.

F1 · price: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest 20% on or about 5/9/2024 and 20% on each of the first four anniversaries of 5/9/2024.

F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the 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.

SEC source: 0001381197-23-000133 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 628,124

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.75 to $86.96.

F1 · 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.

SEC source: 0001381197-23-000133 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 631,505

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.75 to $86.74.

F1 · 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.

SEC source: 0001381197-23-000133 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 641,312

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.84 to $87.11.

F1 · 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.

SEC source: 0001381197-23-000133 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 642,757

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.84 to $86.83. 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 (2) - (5) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000127 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 654,500

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.00 to $85.82.

F1 · 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.

SEC source: 0001381197-23-000127 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 667,688

F1 · 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.

SEC source: 0001381197-23-000127 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 667,779

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.06 to $86.99.

F1 · 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.

SEC source: 0001381197-23-000127 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 675,366

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.06 to $86.05. 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 (2) - (4) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000121 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 680,876

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.91 to $88.33.

F1 · 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.

SEC source: 0001381197-23-000121 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 682,322

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.91 to $87.90.

F1 · 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.

SEC source: 0001381197-23-000121 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 693,703

F1 · 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.

SEC source: 0001381197-23-000121 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 693,794

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.22 to $89.12. 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 (2) - (4) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000119 · form4.xml · nonDerivative · entry 5

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 706,891

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.99 to $89.59.

F1 · 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.

SEC source: 0001381197-23-000119 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 711,950

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.99 to $88.98.

F1 · 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.

SEC source: 0001381197-23-000119 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 720,080

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.89 to $90.10.

F1 · 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.

SEC source: 0001381197-23-000119 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 723,722

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.89 to $89.88.

F1 · 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.

SEC source: 0001381197-23-000119 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 732,484

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.89 to $88.88. 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 (2) - (6) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000116 · form4.xml · nonDerivative · entry 5

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 735,104

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.79 to $88.03.

F1 · 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.

SEC source: 0001381197-23-000116 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 736,188

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.79 to $87.78.

F1 · 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.

SEC source: 0001381197-23-000116 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 743,414

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.79 to $86.78.

F1 · 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.

SEC source: 0001381197-23-000116 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 748,202

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.83 to $87.76.

F1 · 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.

SEC source: 0001381197-23-000116 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 750,008

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.83 to $86.82. 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 (2) - (6) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000113 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 761,390

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.04 to $87.70.

F1 · 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.

SEC source: 0001381197-23-000113 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 768,978

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.04 to $87.03.

F1 · 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.

SEC source: 0001381197-23-000113 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 774,398

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.30 to $86.94.

F1 · 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.

SEC source: 0001381197-23-000113 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 780,179

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.30 to $86.29. 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 (2) - (5) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000111 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 787,586

F1 · 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.

SEC source: 0001381197-23-000111 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 787,676

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.13 to $88.11.

F1 · 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.

SEC source: 0001381197-23-000111 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 791,586

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.13 to $87.12.

F1 · 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.

SEC source: 0001381197-23-000111 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 800,774

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.47 to $88.36. 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 (2) - (4) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000107 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 813,962

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.61 to $88.49.

F1 · 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.

SEC source: 0001381197-23-000107 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 822,272

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.61 to $87.60.

F1 · 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.

SEC source: 0001381197-23-000107 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 827,150

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.54 to $87.31.

F1 · 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.

SEC source: 0001381197-23-000107 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 834,738

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.54 to $86.53. 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 (2) - (5) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000103 · form4.xml · nonDerivative · entry 1

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 840,248

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.47 to $88.02. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in this footnote (2) to this Form 4.

F1 · 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.

SEC source: 0001381197-23-000099 · form4.xml · nonDerivative · entry 6

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 853,436

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.44 to $89.51.

F1 · 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.

SEC source: 0001381197-23-000099 · form4.xml · nonDerivative · entry 5

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 853,707

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.44 to $89.43.

F1 · 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.

SEC source: 0001381197-23-000099 · form4.xml · nonDerivative · entry 4

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 858,495

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.44 to $88.43.

F1 · 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.

SEC source: 0001381197-23-000099 · form4.xml · nonDerivative · entry 3

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 866,263

F1 · 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.

SEC source: 0001381197-23-000099 · form4.xml · nonDerivative · entry 2

Frank Thomas AJ · CIK 0001391401 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 866,430

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.66 to $90.64.

F1 · 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.