Martin Marietta Materials, Inc.
US ˙ NYSE ˙ US5732841060

SecurityMLM / Martin Marietta Materials, Inc.
InstitutionTruist Financial Corp
Latest Disclosed Ownership17,739 shares
Latest Disclosed Value $ 10,442,462
Truist Financial Corp reports 3.96% decrease in ownership of MLM / Martin Marietta Materials, Inc.

On April 27, 2026 - Truist Financial Corp filed a 13F-HR form disclosing ownership of 17,739 shares of Martin Marietta Materials, Inc. (US:MLM) valued at $10,442,595 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 18,471 shares of Martin Marietta Materials, Inc.. This represents a change in shares of -3.96% during the quarter. The current value of the position is $10,344,498 USD.

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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-27 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 17,739 -732 -3.96 10,442 -9.20 0.0141
2026-02-02 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 18,471 -240 -1.28 11,501 -2.48 0.0153
2025-11-03 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 18,711 -981 -4.98 11,793 9.09 0.0159
2025-07-18 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 19,692 -71 -0.36 10,810 14.40 0.0158
2025-04-29 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 19,763 -10,679 -35.08 9,449 -39.90 0.0151
2025-01-31 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 30,442 -73,656 -70.76 15,723 -71.94 0.0246
2024-11-13 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 104,098 5,553 5.63 56,031 4.94 0.0878
2024-08-21 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 98,545 -7,424 -7.01 53,392 -17.93 0.0812
2024-05-13 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 105,969 7,455 7.57 65,059 32.37 0.0985
2024-02-02 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 98,514 8,119 8.98 49,149 32.46 0.0781
2023-11-14 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 90,395 31,969 54.72 37,105 37.56 0.0620
2023-08-01 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 58,426 36,397 165.22 26,975 244.89 0.0448
2023-05-05 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 22,029 365 1.68 7,822 6.83 0.0135
2023-02-17 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 21,664 -1,044 -4.60 7,322 0.10 0.0129
2022-10-26 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 22,708 -3,392 -13.00 7,314 -6.34 0.0140
2022-07-22 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 26,100 -5,971 -18.62 7,809 -36.73 0.0143
2022-04-22 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 32,071 -2,757 -7.92 12,343 -19.55 0.0195
2022-02-14 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 34,828 -1,366 -3.77 15,343 24.06 0.0234
2021-11-05 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 36,194 -916 -2.47 12,367 -5.28 0.0203
2021-08-16 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 37,110 1,404 3.93 13,056 8.89 0.0213
2021-05-17 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 35,706 -1,746 -4.66 11,990 12.75 0.0209
2021-11-19 2020-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 37,452 3,689 10.93 10,634 33.83 0.0203
2021-02-18 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 44,349 10,586 12,593 0.0234
2021-11-05 2020-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 33,763 2,904 9.41 7,946 24.66 0.0174
2020-11-13 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 33,763 2,904 7,946 0.0172
2021-11-16 2020-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 30,859 4,227 15.87 6,374 26.47 0.0143
2020-08-14 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 30,859 4,227 6,374 0.0141
2021-11-05 2020-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 26,632 2,844 11.96 5,040 -24.23 0.0133
2020-05-15 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 26,632 2,844 5,040 0.0131
2021-11-16 2019-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 23,788 5,806 32.29 6,652 34.96 0.0135
2020-02-14 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 23,788 5,806 6,652 0.0134
2019-10-31 2019-09-30 13F MARTIN MARIETTA COMMON STOCK 573284106 17,982 602 3.46 4,929 23.26 0.0846
2019-07-24 2019-06-30 13F MARTIN MARIETTA COMMON STOCK 573284106 17,380 -105 -0.60 3,999 13.70 0.0693
2019-04-23 2019-03-31 13F MARTIN MARIETTA COMMON STOCK 573284106 17,485 592 3.50 3,517 21.15 0.0628
2019-01-22 2018-12-31 13F MARTIN MARIETTA COMMON STOCK 573284106 16,893 -165 -0.97 2,903 -6.48 0.0595
2018-10-17 2018-09-30 13F MARTIN MARIETTA COMMON STOCK 573284106 17,058 1,336 8.50 3,104 -11.62 0.0558
2018-07-26 2018-06-30 13F MARTIN MARIETTA COMMON STOCK 573284106 15,722 -802 -4.85 3,512 2.54 0.0668
2018-04-20 2018-03-31 13F MARTIN MARIETTA COMMON STOCK 573284106 16,524 2,231 15.61 3,425 8.42 0.0653
2018-01-29 2017-12-31 13F MARTIN MARIETTA COMMON STOCK 573284106 14,293 329 2.36 3,159 9.73 0.0590
2017-10-23 2017-09-30 13F MARTIN MARIETTA COMMON STOCK 573284106 13,964 1,231 9.67 2,879 1.59 0.0559
2017-07-20 2017-06-30 13F MARTIN MARIETTA COMMON STOCK 573284106 12,733 2,757 27.64 2,834 30.18 0.0562
2017-04-28 2017-03-31 13F MARTIN MARIETTA COMMON STOCK 573284106 9,976 8,632 642.26 2,177 630.54 0.0438
2017-02-02 2016-12-31 13F MARTIN MARIETTA COMMON STOCK 573284106 1,344 1,344 0.00 298 0.0061
2016-11-01 2016-09-30 13F MARTIN MARIETTA COMMON STOCK 573284106 0 -1,348 -100.00 0 -100.00
2016-08-01 2016-06-30 13F MARTIN MARIETTA COMMON STOCK 573284106 1,348 1,348 0.00 258 0.0054
2015-04-23 2015-03-31 13F MARTIN MARIETTA COMMON STOCK 573284106 0 -2,185 -100.00 0 -100.00
2015-01-26 2014-12-31 13F MARTIN MARIETTA COMMON STOCK 573284106 2,185 259 13.45 242 -2.42 0.0071
2014-10-21 2014-09-30 13F MARTIN MARIETTA COMMON STOCK 573284106 1,926 1,926 248 0.0075
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.