Edgar Filing: Interactive Brokers Group, Inc.

Ownership Submission

FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Brody Paul Jonathan

2. Issuer Name and Ticker or Trading Symbol
Interactive Brokers Group, Inc. [IBKR]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

__X__ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
Chief Financial Officer

(Last)

(First)

(Middle)

ONE PICKWICK PLAZA

3. Date of Earliest Transaction (Month/Day/Year)
08/24/2015

(Street)

GREENWICH, CT 06830

4. If Amendment, Date Original Filed(Month/Day/Year)

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	08/24/2015		S		30 ⁽¹⁾	D	$ 36.25 ⁽⁴⁾	18,576 ⁽²⁾	I	By IBG Holdings LLC
Class A Common Stock	08/24/2015		S		261 ⁽¹⁾	D	$ 37.12 ⁽⁵⁾	18,315 ⁽²⁾	I	By IBG Holdings LLC
Class A Common Stock	08/24/2015		S		25 ⁽¹⁾	D	$ 37.71 ⁽⁶⁾	18,290 ⁽²⁾	I	By IBG Holdings LLC
Class A Common Stock	08/25/2015		S		109 ⁽¹⁾	D	$ 37.26 ⁽⁷⁾	18,181 ⁽²⁾	I	By IBG Holdings LLC
Class A Common Stock	08/25/2015		S		188 ⁽¹⁾	D	$ 37.74 ⁽⁸⁾	17,993 ⁽²⁾	I	By IBG Holdings LLC
Class A Common Stock	08/25/2015		S		17 ⁽¹⁾	D	$ 38.73 ⁽⁹⁾	17,976 ⁽²⁾	I	By IBG Holdings LLC
Class A Common Stock								575,651	D ⁽³⁾

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security
(Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code
(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date
(Month/Day/Year)

7. Title and Amount of Underlying Securities
(Instr. 3 and 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Brody Paul Jonathan ONE PICKWICK PLAZA GREENWICH, CT 06830	X		Chief Financial Officer

Signatures

/s/ Raymond Bussiere as authorized signatory for Paul J. Brody		08/26/2015
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	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.
(2)	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.
(3)	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.
(4)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.64 to $36.63, 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) - (9) to this Form 4.
(5)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.64 to $37.63, inclusive.
(6)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.64 to $37.85, inclusive.
(7)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.58 to $37.57, inclusive.
(8)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.58 to $38.57, inclusive.
(9)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.58 to $38.98, inclusive.

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