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Filing Details

Accession Number:: 0001140361-15-034333
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2015-09-03 15:02:10
Reporting Period:: 2015-09-01

Filing Date:: 2015-09-03
Accepted Time:: 2015-09-03 15:02:10
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1381197	Interactive Brokers Group Inc.	IBKR	Security Brokers, Dealers & Flotation Companies (6211)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1391404	Milan Galik	One Pickwick Plaza Greenwich CT 06830	President	Yes	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Class A Common Stock	Disposition	2015-09-01	6,458	$38.61	327,458	No	4	S	Indirect	By IBG Holdings LLC
Class A Common Stock	Disposition	2015-09-01	54	$39.24	327,404	No	4	S	Indirect	By IBG Holdings LLC
Class A Common Stock	Disposition	2015-09-02	4,925	$37.21	322,479	No	4	S	Indirect	By IBG Holdings LLC
Class A Common Stock	Disposition	2015-09-02	1,425	$38.22	321,054	No	4	S	Indirect	By IBG Holdings LLC
Class A Common Stock	Disposition	2015-09-02	90	$38.70	320,964	No	4	S	Indirect	By IBG Holdings LLC

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	By IBG Holdings LLC
No	4	S	Indirect	By IBG Holdings LLC
No	4	S	Indirect	By IBG Holdings LLC
No	4	S	Indirect	By IBG Holdings LLC
No	4	S	Indirect	By IBG Holdings LLC

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Class A Common Stock	727,001	Direct

Footnotes

The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by IBG Holdings LLC, in which the reporting person has a pecuniary interest through his membership interest in IBG Holdings LLC that went into effect July 24, 2015.
Represents number of securities owned by IBG Holdings LLC in which the Reporting Person has a pecuniary interest through his membership interest in IBG Holdings LLC.
These shares of Class A Common Stock are owned directly by the reporting person and represent the aggregate number of shares of restricted stock from awards granted under the 2007 Stock Incentive Plan since its inception, less vested shares that were withheld for tax purposes, or sold previously.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.19 to $39.18, inclusive. The reporting person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (4) - (8) to this Form 4.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.19 to $39.24, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.67 to $37.66, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.67 to $38.66, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.67 to $38.71, inclusive.