Main Street Capital Corporation announced that in connection with previously announced long-term succession plans, the Main Street Board of Directors unanimously elected Dwayne L. Hyzak as Chief Executive Officer of the company. Mr. Hyzak succeeds Vincent D. Foster as CEO. Mr. Foster will continue to serve as Main Street's Executive Chairman.

The Board also unanimously approved the promotion of David L. Magdol to President, succeeding Mr. Hyzak in that role. These transitions are effective immediately. In addition to assuming the roles of CEO and Executive Chairman, respectively, Messrs.

Hyzak and Foster retain their existing roles as members of the Board, with Mr. Foster continuing to serve as Chairman of the Board. Mr. Magdol continues in his existing role as Chief Investment Officer of Main Street in addition to assuming the responsibility of President. The Investment Committee and Executive Committee of management for Main Street shall each remain comprised of Messrs.

Foster, Hyzak, Magdol and Curtis L. Hartman, Main Street's Vice Chairman, Chief Credit Officer and Senior Managing Director.