MLM r&d expenses history

Quarterly · USD. Dates are reporting period ends; fiscal years can differ from calendar years.

Martin Marietta Materials R&D Expenses — Quarterly (USD)
Period ending	R&D Expenses (USD)
Jun 30, 2026	0
Mar 31, 2026	0
Dec 31, 2025	0
Sep 30, 2025	0
Jun 30, 2025	0
Mar 31, 2025	0
Dec 31, 2024	0
Sep 30, 2024	0
Jun 30, 2024	0
Mar 31, 2024	0
Dec 31, 2023	0
Sep 30, 2023	0
Jun 30, 2023	0
Mar 31, 2023	0
Dec 31, 2022	0
Sep 30, 2022	0
Jun 30, 2022	0
Mar 31, 2022	0
Dec 31, 2021	0
Sep 30, 2021	0
Jun 30, 2021	0
Mar 31, 2021	0
Dec 31, 2020	0
Sep 30, 2020	0
Jun 30, 2020	0
Mar 31, 2020	0
Dec 31, 2019	0
Sep 30, 2019	0
Jun 30, 2019	0
Mar 31, 2019	0
Dec 31, 2018	0
Sep 30, 2018	0
Jun 30, 2018	0
Mar 31, 2018	0
Dec 31, 2017	0
Sep 30, 2017	0
Jun 30, 2017	0
Mar 31, 2017	0
Dec 31, 2016	0
Sep 30, 2016	0
Jun 30, 2016	0
Mar 31, 2016	0
Dec 31, 2015	0
Sep 30, 2015	0
Jun 30, 2015	0
Mar 31, 2015	0
Dec 31, 2014	0
Sep 30, 2014	0
Jun 30, 2014	3,338,000
Mar 31, 2014	9,512,000
Dec 31, 2013	0
Sep 30, 2013	89,000
Jun 30, 2013	275,000
Mar 31, 2013	307,000
Dec 31, 2012	0
Sep 30, 2012	0
Jun 30, 2012	9,240,000
Mar 31, 2012	25,901,000
Dec 31, 2011	18,573,000
Sep 30, 2011	733,000
Jun 30, 2011	1,735,000
Mar 31, 2011	972,000
Dec 31, 2010	3,000
Sep 30, 2010	114,000
Jun 30, 2010	22,000
Mar 31, 2010	13,000
Dec 31, 2009	23,000
Sep 30, 2009	51,000
Jun 30, 2009	163,000
Mar 31, 2009	136,000
Dec 31, 2008	139,000
Sep 30, 2008	145,000
Jun 30, 2008	134,000
Mar 31, 2008	178,000
Dec 31, 2007	310,000
Sep 30, 2007	170,000
Jun 30, 2007	186,000
Mar 31, 2007	203,000
Dec 31, 2006	257,000
Sep 30, 2006	175,000
Jun 30, 2006	140,000
Mar 31, 2006	164,000
Dec 31, 2005	132,000
Sep 30, 2005	189,000
Jun 30, 2005	193,000
Mar 31, 2005	148,000
Dec 31, 2004	355,000
Sep 30, 2004	201,000
Jun 30, 2004	181,000
Mar 31, 2004	154,000
Dec 31, 2003	197,000
Sep 30, 2003	245,000
Jun 30, 2003	112,000
Mar 31, 2003	58,000
Dec 31, 2002	137,000
Sep 30, 2002	12,000
Jun 30, 2002	136,000
Mar 31, 2002	84,000
Dec 31, 2001	66,000
Sep 30, 2001	-179,000