Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership36,938 shares
Latest Disclosed Value $ 21,744,866
Pnc Financial Services Group, Inc. reports 5.19% decrease in ownership of MLM / Martin Marietta Materials, Inc.

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 36,938 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $21,744,866 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 38,960 shares of Martin Marietta Materials, Inc.. This represents a change in shares of -5.19% during the quarter.

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.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-08 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 36,938 -2,022 -5.19 21,745 -10.36 0.0021
2026-02-06 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 38,960 -2,472 -5.97 24,259 -7.10 0.0132
2025-11-07 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 41,432 109 0.26 26,114 15.12 0.0158
2025-08-08 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 41,323 -397 -0.95 22,685 13.72 0.0146
2025-05-09 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 41,720 7,341 21.35 19,948 12.34 0.0104
2025-02-07 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 34,379 -3,418 -9.04 17,757 -12.72 0.0119
2024-11-08 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 37,797 356 0.95 20,344 0.29 0.0130
2024-08-09 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 37,441 -1,351 -3.48 20,285 -14.82 0.0135
2024-05-10 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 38,792 910 2.40 23,816 26.01 0.0166
2024-03-22 2023-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 37,882 500 1.34 18,900 23.17 0.0148
2024-02-09 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 37,882 500 18,900 0.0148
2023-11-13 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 37,382 -3,242 -7.98 15,345 -18.19 0.0131
2023-08-11 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 40,624 -1,545 -3.66 18,756 25.27 0.0160
2023-05-15 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 42,169 -2,188 -4.93 14,972 -0.13 0.0131
2023-02-10 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 44,357 2,472 5.90 14,991 11.13 0.0144
2022-11-10 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 41,885 1,699 4.23 13,490 12.17 0.0141
2022-08-12 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 40,186 1,562 4.04 12,026 -19.10 0.0118
2022-05-12 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 38,624 -604 -1.54 14,865 -13.98 0.0130
2022-02-11 2021-12-31 13F MARTIN MAR Common Stock 573284106 39,228 811 2.11 17,281 31.66 0.0143
2021-11-05 2021-09-30 13F MARTIN MAR Common Stock 573284106 38,417 230 0.60 13,125 -2.31 0.0121
2021-08-06 2021-06-30 13F MARTIN MAR Common Stock 573284106 38,187 556 1.48 13,436 6.33 0.0122
2021-05-07 2021-03-31 13F MARTIN MAR Common Stock 573284106 37,631 -4,367 -10.40 12,636 5.95 0.0123
2021-02-12 2020-12-31 13F MARTIN MAR Common Stock 573284106 41,998 -4 -0.01 11,926 20.61 0.0120
2020-11-06 2020-09-30 13F MARTIN MAR Common Stock 573284106 42,002 -891 -2.08 9,888 11.59 0.0122
2020-08-28 2020-06-30 13F/A-1 MARTIN MAR Common Stock 573284106 42,893 7,070 19.74 8,861 30.71 0.0118
2020-08-07 2020-06-30 13F MARTIN MAR Common Stock 573284106 42,893 7,070 8,861 1,839.8839
2020-05-08 2020-03-31 13F MARTIN MAR Common Stock 573284106 35,823 -946 -2.57 6,779 -34.06 0.0085
2020-02-07 2019-12-31 13F MARTIN MAR Common Stock 573284106 36,769 -783 -2.09 10,281 -0.12 0.0101
2019-11-08 2019-09-30 13F MARTIN MAR Common Stock 573284106 37,552 -99 -0.26 10,293 18.80 0.0103
2019-08-09 2019-06-30 13F MARTIN MAR Common Stock 573284106 37,651 -1,441 -3.69 8,664 10.16 0.0085
2019-05-10 2019-03-31 13F MARTIN MAR Common Stock 573284106 39,092 -262 -0.67 7,865 16.28 0.0079
2019-02-08 2018-12-31 13F MARTIN MAR Common Stock 573284106 39,354 -167 -0.42 6,764 -5.92 0.0075
2018-11-09 2018-09-30 13F MARTIN MAR Common Stock 573284106 39,521 3,172 8.73 7,190 -11.42 0.0068
2018-08-10 2018-06-30 13F MARTIN MAR Common Stock 573284106 36,349 -2,398 -6.19 8,117 1.05 0.0080
2018-05-11 2018-03-31 13F MARTIN MAR Common Stock 573284106 38,747 189 0.49 8,033 -5.76 0.0079
2018-02-09 2017-12-31 13F MARTIN MAR Common Stock 573284106 38,558 498 1.31 8,524 8.60 0.0083
2017-11-13 2017-09-30 13F MARTIN MAR Common Stock 573284106 38,060 2,229 6.22 7,849 -1.59 0.0082
2017-08-11 2017-06-30 13F MARTIN MAR 573284106 35,831 -535 -1.47 7,976 0.48 0.0086
2017-05-12 2017-03-31 13F MARTIN MAR Common Stock 573284106 36,366 -1,380 -3.66 7,938 -5.06 0.0088
2017-02-10 2016-12-31 13F MARTIN MAR Common Stock 573284106 37,746 -1,149 -2.95 8,361 20.03 0.0095
2016-11-04 2016-09-30 13F MARTIN MAR Common Stock 573284106 38,895 7,986 25.84 6,966 17.37 0.0081
2016-08-05 2016-06-30 13F MARTIN MAR Common Stock 573284106 30,909 492 1.62 5,935 22.35 0.0070
2016-05-06 2016-03-31 13F MARTIN MAR Common Stock 573284106 30,417 4,064 15.42 4,851 34.82 0.0057
2016-02-05 2015-12-31 13F MARTIN MARIETTA MATLS COM 573284106 26,353 -3,313 -11.17 3,598 -20.20 0.0042
2015-11-06 2015-09-30 13F MARTIN MAR Common Stock 573284106 29,666 1,046 3.65 4,509 11.31 0.0054
2015-08-05 2015-06-30 13F MARTIN MAR Common Stock 573284106 28,620 -2 -0.01 4,051 1.22 0.0045
2015-05-08 2015-03-31 13F MARTIN MAR Common Stock 573284106 28,622 366 1.30 4,002 28.35 0.0044
2015-02-06 2014-12-31 13F/A-1 MARTIN MAR Common Stock 573284106 28,256 2,342 9.04 3,118 -6.67 0.0034
2015-02-06 2014-12-31 13F MARTIN MAR Common Stock 573284106 28,256 3,118
2014-11-07 2014-09-30 13F MARTIN MARIETTA MATLS COM 573284106 25,914 9,954 62.37 3,341 58.57 0.0039
2014-08-08 2014-06-30 13F MARTIN MARIETTA MATLS COM 573284106 15,960 -167 -1.04 2,107 1.74 0.0027
2014-05-09 2014-03-31 13F MARTIN MARIETTA MATLS COM 573284106 16,127 -218 -1.33 2,071 26.74 0.0027
2014-02-07 2013-12-31 13F MARTIN MARIETTA MATLS COM 573284106 16,345 -187 -1.13 1,634 0.62 0.0022
2013-11-01 2013-09-30 13F MARTIN MARIETTA MATLS COM 573284106 16,532 -1,467 -8.15 1,624 -8.30 0.0024
2013-08-02 2013-06-30 13F MARTIN MARIETTA MATLS COM 573284106 17,999 17,999 1,771 0.0026
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.