Interactive Brokers Group, Inc. — Director's Dealing 2020

Dec 8, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Interactive Brokers Group, Inc. (IBKR)
CIK: 0001381197
Period of Report: 2020-12-04

Reporting Person: Frank Thomas AJ (Chief Information Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-12-04	Class A common stock	S	17750	$55.20	Disposed	1783231	Direct
2020-12-04	Class A common stock	S	47	$55.82	Disposed	1783184	Direct
2020-12-07	Class A common stock	S	14619	$53.67	Disposed	1768565	Direct
2020-12-07	Class A common stock	S	2947	$54.45	Disposed	1765618	Direct

Footnotes

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

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"); (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.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.80 to $55.70. 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.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.10 to $54.09.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.10 to $54.74.