MLM MARTIN MARIETTA MATERIALS INC Capital Structure Changes 8-K Filing 2024 - Debt Issuance Martin Marietta Materials, Inc. issued $750 million in senior notes with interest rates of 5.150% due in 2034 and 5.500% due in 2054, using part of the proceeds to repay existing borrowings and for general corporate purposes.Get access to all SEC 8-K filings of the MARTIN MARIETTA MATERIALS INC