X0306 4 2017-11-30 0000916076 MARTIN MARIETTA MATERIALS INC MLM 0001084501 ZELNAK STEPHEN P JR 2710 WYCLIFF ROAD RALEIGH NC 27607 1 Common Stock 2017-11-30 4 A 0 81 166.71 A 17612 D Common stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in stock in a lump sum or in installments not to exceed 10 years commencing on (i) the date the reporting person ceases to be a Non-Employee Director, (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, or (iii) the date elected by the Non-Employee Director that is later than the third anniversary of the date the fees are earned, in accordance with the reporting person's election under the Plan. /s/ Roselyn R. Bar, attorney-in-fact 2017-12-04