Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionTrust Investment Advisors
Latest Disclosed Ownership1,840 shares
Latest Disclosed Value $ 1,083,171
Trust Investment Advisors reports 3.06% decrease in ownership of MLM / Martin Marietta Materials, Inc.

On April 24, 2026 - Trust Investment Advisors filed a 13F-HR form disclosing ownership of 1,840 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $1,083,171 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 1,898 shares of Martin Marietta Materials, Inc.. This represents a change in shares of -3.06% 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)
2026-04-24 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,840 -58 -3.06 1,083 -8.30 0.6224
2026-01-20 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,898 93 5.15 1,182 3.87 0.6291
2025-11-24 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,805 85 4.94 1,138 20.44 0.6397
2025-08-01 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,720 -123 -6.67 944 7.15 0.5732
2025-05-02 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,843 26 1.43 881 -6.08 0.5674
2025-02-12 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,817 -82 -4.32 938 -8.22 0.5989
2024-11-12 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,899 52 2.82 1,022 2.20 0.6512
2024-08-12 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,847 -4 -0.22 1,001 -11.97 0.6362
2024-05-09 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,851 -5 -0.27 1,136 22.81 0.8201
2024-01-31 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,856 0 0.00 926 21.55 0.7218
2023-11-14 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,856 -94 -4.82 762 -15.44 0.6552
2023-08-10 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,950 111 6.04 900 38.04 0.7269
2023-05-12 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,839 16 0.88 653 5.84 0.5850
2023-02-28 2022-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 1,823 -117 -6.03 616 -1.44 0.5812
2022-11-03 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,940 23 1.20 625 8.89 0.6521
2022-07-22 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,917 -100 -4.96 574 -26.03 0.5515
2022-05-02 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 2,017 48 2.44 776 -10.50 0.6319
2022-02-02 2021-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 1,969 30 1.55 867 30.77 0.6834
2022-01-26 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,939 0 663 0.5927
2021-11-12 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,939 51 2.70 663 -0.15 0.5928
2021-07-23 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,888 79 4.37 664 9.39 0.5875
2021-05-06 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,809 -16 -0.88 607 17.18 0.5953
2021-02-05 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,825 -34 -1.83 518 18.26 0.5252
2020-11-13 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,859 53 2.93 438 17.43 0.5086
2020-08-11 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,806 50 2.85 373 12.35 0.4782
2020-04-30 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,756 -19 -1.07 332 -33.06 0.5495
2020-02-03 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,775 -175 -8.97 496 -7.12 0.6175
2019-10-24 2019-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,950 0 0.00 534 18.93 0.6905
2019-07-30 2019-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,950 -325 -14.29 449 -1.97 0.5655
2019-05-03 2019-03-31 13F MARTIN MARIETTA MATLS COM 573284106 2,275 -100 -4.21 458 12.25 0.5397
2019-02-05 2018-12-31 13F MARTIN MARIETTA MATLS COM 573284106 2,375 2,375 408 0.5148
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.