Martin Marietta Materials Inc.

MLM·NYSE·$560.93Share Price as of 11/2·$34BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2607/30/26 10-QQ1 ended 03/31/2604/30/26 10-KFY 202502/19/26 10-QQ3 ended 09/30/2511/04/25 10-QQ2 ended 06/30/2508/07/25

Disclosures

8-KCurrent report09/16/26 8-KCurrent report08/24/26 8-KCurrent report08/18/26 8-KCurrent report08/14/26 8-KCurrent report08/12/26

Prospectuses and Registrations

424B2Prospectus for primary offering08/13/26 FWPFree writing prospectus08/11/26 424B5Prospectus supplement08/10/26 S-8Registration of securities for employees05/15/26 S-3ASRAutomatic shelf registration02/19/26

Proxies

DEF 14ADefinitive proxy04/15/26 DEF 14ADefinitive proxy04/15/25 DEF 14ADefinitive proxy04/15/24 PX14A6GLetter to shareholders04/24/23 DEF 14ADefinitive proxy04/14/23

Ownership

SC 13G/ABeneficial ownership (amended)10/30/26 Form 4Insider transaction09/02/26 Form 4Insider transaction09/02/26 Form 4Insider transaction09/02/26 Form 4Insider transaction09/02/26

Other

SDConflict Minerals disclosure09/18/26 11-KEmployee stock purchase plan report06/18/26 ARSAnnual report to shareholders04/15/26 SDConflict Minerals disclosure09/24/25 11-KEmployee stock purchase plan report06/26/25