 SANTA ANA, Calif.--BUSINESS WIRE--Foundation Building Materials, Inc. FBM or the Company NYSE: FBM, one of the largest specialty building products distributors of wallboard, suspended ceiling systems, metal framing and complementary and other products in North America, today announced that it has entered into a definitive agreement under which an affiliate of American Securities LLC, a leading private equity firm, will acquire all outstanding shares of FBM for 19.25 per share in an a 