Interactive Brokers Group, Inc. — Director's Dealing 2016

Aug 1, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Interactive Brokers Group, Inc. (IBKR)
CIK: 0001381197
Period of Report: 2016-07-28

Reporting Person: Frank Thomas AJ (Chief Information Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-07-28	Class A Common Stock	A	1000000	$35.14	Acquired	1000000	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	306801	Direct

Footnotes

F1: 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.

F2: The shares were acquired in a share for share exchange between IBG Holdings LLC and the issuer, in which each share of Class A Common Stock of the issuer was acquired by IBG Holdings LLC in exchange for one membership interest in IBG LLC. The per share price provided represents the closing price of the issuer's Class A Common Stock on 7/28/2016, the date when the exchange described took place.

F3: 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.