BlackRock, Inc. ownership in MMX / Martin Marietta Materials, Inc.

Martin Marietta Materials, Inc.

DE ˙ DB ˙ US5732841060

499,80 € ↑4,40 (0,89%)

2026-06-04
CENA AKCJI

Security	DE:MMX / Martin Marietta Materials, Inc.
Institution	BlackRock, Inc.
Latest Disclosed Ownership	4,113,718 shares
Ownership	6.70%

2024-01-26 - BlackRock, Inc. has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,113,718 shares of Martin Marietta Materials, Inc. (DE:MMX). This represents 6.7 percent ownership of the company. In their previous filing dated 2023-02-01 , BlackRock, Inc. had reported owning 4,025,394 shares, indicating an increase of 2.19 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2024-01-26	2024-01-26	13G/A	4,025,394	4,113,718	2.19	6.70	3.08
2023-02-01	2023-02-01	13G/A	4,077,354	4,025,394	-1.27	6.50	0.00
2022-02-01	2022-02-01	13G/A	3,803,693	4,077,354	7.19	6.50	6.56
2021-01-29	2021-01-29	13G/A	4,105,223	3,803,693	-7.35	6.10	-7.58
2020-02-05	2020-02-05	13G/A	3,945,492	4,105,223	4.05	6.60	4.76
2019-02-06	2019-02-06	13G/A	3,861,669	3,945,492	2.17	6.30	3.28
2018-01-25	2018-01-25	13G/A	3,690,187	3,861,669	4.65	6.10	5.17
2017-01-25	2017-01-25	13G/A	3,714,605	3,690,187	-0.66	5.80	3.57
2016-02-09	2016-02-09	13G		3,714,605		5.60
2014-09-08	2014-09-08	13G/A		3,071,545		4.50
2014-01-30	2014-01-30	13G/A		3,040,551		6.60
2013-02-05	2013-02-05	13G/A		2,826,652		6.16
2012-02-13	2012-02-13	13G/A		2,742,468		6.00

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-13	2026-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,685,757	199,531	4.45	2,758,411	-1.25	0.0482
2026-02-12	2025-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,486,226	334,218	8.05	2,793,393	6.74	0.0472
2025-11-12	2025-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,152,008	-75,800	-1.79	2,616,927	12.75	0.0458
2025-08-12	2025-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,227,808	-84,285	-1.95	2,320,897	12.57	0.0442
2025-05-02	2025-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,312,093	52,328	1.23	2,061,741	-6.29	0.0433
2025-02-07	2024-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,259,765	203,634	5.02	2,200,169	0.78	0.0445
2024-11-13	2024-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,056,131	-84,795	-2.05	2,183,213	-2.69	0.0458
2024-08-13	2024-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,140,926	45,477	1.11	2,243,554	-10.77	0.0508
2024-05-10	2024-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,095,449	-18,332	-0.45	2,514,360	22.51	0.0585
2024-02-13	2023-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,113,781	-3,210	-0.08	2,052,406	21.45	0.0523
2023-11-13	2023-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,116,991	175,116	4.44	1,689,943	-7.14	0.0486
2023-08-11	2023-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,941,875	-59,319	-1.48	1,819,924	28.10	0.0502
2023-05-12	2023-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,001,194	-24,307	-0.60	1,420,664	4.42	0.0419
2023-02-13	2022-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,025,501	21,982	0.55	1,360,499	5.51	0.0426
2022-11-14	2022-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,003,519	-51,169	-1.26	1,289,494	6.28	0.0439
2022-08-12	2022-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,054,688	-62,074	-1.51	1,213,326	-23.43	0.0389
2022-05-12	2022-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,116,762	39,408	0.97	1,584,501	-11.78	0.0427
2022-02-10	2021-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,077,354	-72,516	-1.75	1,796,154	26.67	0.0457
2021-11-09	2021-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,149,870	53,775	1.31	1,417,929	-1.60	0.0397
2021-08-11	2021-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	4,096,095	144,354	3.65	1,441,046	8.59	0.0401
2021-05-07	2021-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,951,741	148,048	3.89	1,327,071	22.86	0.0390
2021-02-05	2020-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,803,693	-31,583	-0.82	1,080,137	19.66	0.0345
2020-11-06	2020-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,835,276	-46,381	-1.19	902,669	12.58	0.0333
2020-08-14	2020-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,881,657	-68,051	-1.72	801,835	7.28	0.0320
2020-05-01	2020-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,949,708	-155,515	-3.79	747,402	-34.89	0.0366
2020-02-13	2019-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	4,105,223	124,653	3.13	1,147,986	5.22	0.0440
2019-11-08	2019-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,980,570	82,968	2.13	1,091,073	21.65	0.0458
2019-08-22	2019-06-30	13F/A-1	MARTIN MARIETTA MATLS	COM	573284106	3,897,602	-26,521	-0.68	896,876	13.61	0.0384
2019-08-13	2019-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,897,602	-26,521		896,876
2019-05-09	2019-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,924,123	-21,369	-0.54	789,456	16.42	0.0352
2019-02-08	2018-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,945,492	34,666	0.89	678,110	-4.70	0.0342
2018-11-09	2018-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,910,826	-51,292	-1.29	711,573	-19.58	0.0308
2018-08-09	2018-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,962,118	51,674	1.32	884,859	9.16	0.0408
2018-05-09	2018-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,910,444	48,775	1.26	810,635	-5.03	0.0388
2018-02-09	2017-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,861,669	8,010	0.21	853,584	7.40	0.0406
2017-11-14	2017-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,853,659	35,856	0.94	794,740	-6.48	0.0401
2017-08-10	2017-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	3,817,803	81,136	2.17	849,766	4.20	0.0451
2017-05-12	2017-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	3,736,667	3,621,250	3,137.54	815,527	3,089.51	0.0448
2017-02-10	2016-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	115,417	-6,577	-5.39	25,569	17.02	0.0362
2016-11-08	2016-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	121,994	-3,230	-2.58	21,851	-9.12	0.0314
2016-08-10	2016-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	125,224	9,080	7.82	24,044	29.79	0.0362
2016-05-10	2016-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	116,144	-31,009	-21.07	18,525	-7.83	0.0298
2016-02-11	2015-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	147,153	-222	-0.15	20,098	-10.25	0.0295
2015-11-13	2015-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	147,375	15,728	11.95	22,394	20.21	0.0351
2015-08-07	2015-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	131,647	-5,297	-3.87	18,629	-2.70	0.0276
2015-05-13	2015-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	136,944	2,904	2.17	19,145	29.46	0.0265
2015-02-09	2014-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	134,040	2,519	1.92	14,788	-12.80	0.0211
2014-10-29	2014-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	131,521	105,637	408.12	16,958	396.14	0.0248
2014-08-06	2014-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	25,884	1,738	7.20	3,418	10.26	0.0051
2014-05-02	2014-03-31	13F	MARTIN MARIETTA MATLS	COM	573284106	24,146	-4,461	-15.59	3,100	8.43	0.0050
2014-02-12	2013-12-31	13F	MARTIN MARIETTA MATLS	COM	573284106	28,607	-637	-2.18	2,859	-0.42	0.0047
2013-11-12	2013-09-30	13F	MARTIN MARIETTA MATLS	COM	573284106	29,244	3,657	14.29	2,871	14.02	0.0054
2013-08-13	2013-06-30	13F	MARTIN MARIETTA MATLS	COM	573284106	25,587	25,587		2,518		0.0050

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.