Interactive Brokers Group, Inc. — Director's Dealing 2012

Jan 4, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Interactive Brokers Group, Inc. (IBKR)
CIK: 0001381197
Period of Report: 2011-12-31

Reporting Person: Galik Milan (Director, SVP Software Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-31	Class A Comon Stock	A	235426	—	Acquired	877159	Direct

Footnotes

F1: This represents a grant of restricted stock that will vest 10% on 5/9/2012 and 15% on each of the first six anniversaries of 5/9/2012.

F2: These shares represent the aggregate number of shares of restricted stock from awards granted on May 9, 2007 and annually thereafter, starting December 31, 2007 through December 31, 2011, less vested shares that were sold for withholding tax purposes.