Interactive Brokers Group, Inc.

The graphic below illustrates our current ownership structure and reflects current ownership percentages. The graphic below does not display the subsidiaries of IBG LLC.

Our primary assets are our ownership of approximately 26.3% of the membership interests of IBG LLC, the current holding company for our businesses, and our controlling interest and related contractual rights as the sole managing member of IBG LLC. The remaining approximately 73.7% of IBG LLC membership interests are held by IBG Holdings LLC (“Holdings”), a holding company that is owned directly and indirectly by our founder and Chairman, Mr. Thomas Peterffy and his affiliates, management and other employees of IBG LLC, and certain other members. The IBG LLC membership interests held by Holdings will be subject to purchase by us over time in connection with offerings by us of shares of our common stock.

The table below presents the amount of IBG LLC membership interests held by IBG, Inc. and Holdings as of December 31, 2025.

Purchases of IBG LLC membership interests, held by Holdings, by the Company are governed by the exchange agreement among us, IBG LLC, Holdings and the historical members of IBG LLC, (the “Exchange Agreement”), a copy of which was filed as an exhibit to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2009 and filed with the SEC on November 9, 2009. The Exchange Agreement, as amended June 6, 2012, provides that the Company may facilitate the redemption by Holdings of interests held by its members through the issuance of shares of common stock through a public offering or directly to Holdings in exchange for the interests in IBG LLC being sold by Holdings. The common stock received from the Company is either distributed by Holdings to certain members in redemption of their Holdings interests or sold on behalf of such members in open market transactions, with the proceeds of such sales distributed by Holdings to certain members in redemption of their Holdings interests. From 2011 through 2025, the Company issued 165,613,780 shares of common stock (with a fair value of $2.2 billion) to Holdings in exchange for an equivalent number of shares of member interests in IBG LLC.