 RALEIGH, N.C., Oct. 12, 2022 GLOBE NEWSWIRE -- Martin Marietta Materials, Inc. NYSE:MLM Martin Marietta or the Company will host its third-quarter 2022 earnings conference call on Wednesday, November 2, 2022 at 11:00 a.m. Eastern Time. The Company will release results for the quarter ended September 30, 2022, that morning before the market opens. 