X0206 3 2019-05-09 0 0000916076 MARTIN MARIETTA MATERIALS INC MLM 0001776295 LaTorre Craig M 2710 WYCLIFF ROAD RALEIGH NC 27607 1 Sr. VP, CHRO Common Stock 8080 D Represents unvested restricted stock units granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan. 5,892 restricted stock units were awarded on August 23, 2018, which award vests in three equal installments on each of the third, fourth and fifth anniversaries of the award date, subject to continued employment and other terms and conditions specified in the award agreement. 2,188 restricted stock units were awarded on February 20, 2019, which award vests pro rata in equal annual installments over three years from the date of grant. Exhibit 24.1 - Power of Attorney /s/ Roselyn R. Bar, attorney-in-fact 2019-05-09