Washington, DC 20549





Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported) December 10, 2018


Martin Marietta Materials, Inc.

(Exact Name of Registrant as Specified in Its Charter)



North Carolina





(State or Other Jurisdiction
of Incorporation)


File Number)


(IRS Employer
Identification No.)


2710 Wycliff Road, Raleigh, North Carolina



(Address of Principal Executive Offices)


(Zip Code)

(919) 781-4550

(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)


Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). Emerging growth company 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. 



Item 1.04 Mine Safety—Reporting of Shutdowns and Patterns of Violations.


On December 10, 2018, the Corporation received a section 107(a) order issued by the Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977 at its Spanish Spring Quarry in Sparks, Nevada.  The order stated that two miners were observed under an approximately 40,000 pound suspended load while attempting to remove the hopper from the primary plant.  The order further stated one miner was directing the load and the other miner was trying to grab the suspension line from a third miner who was above the load.  No one was injured in the cited incident.  The Corporation took corrective action and the order was terminated.


Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.















Date: December 14, 2018



/s/ James A. J. Nickolas





James A. J. Nickolas,





Senior Vice President and Chief Financial Officer