Billionaire investor Carl Icahn said that his affiliates had converted 1.5 million Series B preferred shares of Guaranty Financial into 15.1 million common shares. One of Icahn's affiliates also sold 40,000 common shares of the bank holding company at $4.18 per share. Icahn owns about 18.5 million common shares (17%).

Billionaire investor Carl Icahn entered into an agreement with Guaranty Financial under which the company will sell him about 1.06 million shares of its Series B convertible preferred stock for $55 million. Icahn also entered into a purchase agreement under which Guaranty Bank will sell him units consisting of Guaranty Bank subordinated notes -- with an original principal amount of $175 million -- and 406,000 shares of Series B preferred stock. Icahn will pay $175 million for the units. The investor also entered into a letter agreement with Guaranty Financial under which he and the nominating and governance committee will work to identify a qualified candidate to serve as a director. Icahn will also have certain pre-emptive rights with regard to the issuance of specified securities for one year following the issuance of the Series B preferred. Icahn has 3,455,493 shares (7.74%).

Billionaire investor Carl Icahn intends to talk with management about ways to enhance shareholder value. Icahn maintains that the stock of the Dallas bank holding company is undervalued. He holds about 3.46 million shares (9.77%).