DENVER, Jan. 7, 2025 /PRNewswire/ -- Summit Materials, Inc. (NYSE: SUM) ("Summit," "Summit Materials" or the "Company"), a leading producer of aggregates and cement, today announced the expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 in connection with Summit's previously announced definitive agreement to be acquired by Quikrete Holdings, Inc. ("Quikrete" or the "Purchaser") for $52.50 per share in cash (the "Merger"). The Merger is expected to close within th ...