Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionStrategy Asset Managers Llc
Latest Disclosed Ownership1,232 shares
Latest Disclosed Value $ 725,254
Strategy Asset Managers Llc ownership in MLM / Martin Marietta Materials, Inc.

On May 12, 2026 - Strategy Asset Managers Llc filed a 13F-HR form disclosing ownership of 1,232 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $725,254 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,232 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 0.00% 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.

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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)
2026-05-12 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 725 -5.48 0.1190
2026-02-11 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 767 -1.16 0.1261
2025-11-04 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 777 14.79 0.1397
2025-08-07 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 676 14.77 0.1263
2025-05-09 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 589 -7.39 0.1214
2025-02-12 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 636 -4.07 0.1234
2024-11-08 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 663 16.73 0.1273
2024-08-02 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 569 -24.87 0.1263
2024-04-25 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 -1,086 -46.85 756 -34.60 0.1619
2024-02-12 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 2,318 -141 -5.73 1,156 14.57 0.2742
2023-11-13 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 2,459 1,227 99.59 1,009 77.64 0.2640
2023-08-25 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 569 29.98 0.1263
2023-05-02 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 437 0.1066
2023-01-13 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 0 -100.00 0.1057
2022-10-11 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 -1,857 -60.12 397 -57.03 0.1078
2022-07-13 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 3,089 -70 -2.22 924 -24.01 0.2844
2022-04-11 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 3,159 1,877 146.41 1,216 115.22 0.2631
2022-01-14 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,282 0 0.00 565 29.00 0.1467
2021-12-14 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,282 50 4.06 438 1.15 0.0974
2021-08-04 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 433 4.59 0.0916
2021-05-12 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 414 18.29 0.0949
2021-02-10 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 350 20.69 0.0835
2020-11-03 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 290 14.17 0.0752
2020-08-10 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 254 9.01 0.0680
2020-05-14 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 0 0.00 233 -32.46 0.0750
2020-02-13 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,232 -546 -30.71 345 -29.16 0.0851
2019-11-13 2019-09-30 13F MARTIN MARIETTA MATLS COM Common Stock 573284106 1,778 0 0.00 487 19.07 0.1450
2019-08-14 2019-06-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,778 0 0.00 409 14.25 0.1158
2019-05-08 2019-03-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,778 0 0.00 358 16.99 0.0805
2019-02-14 2018-12-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,778 0 0.00 306 -5.26 0.0747
2018-11-01 2018-09-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,778 0 0.00 324 -18.64 0.0658
2018-08-07 2018-06-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,778 1,778 397 0.0839
2018-05-03 2018-03-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 0 -1,778 -100.00 0 -100.00
2018-01-29 2017-12-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,778 2 0.11 393 7.38 0.0768
2017-11-06 2017-09-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,776 -200 -10.12 366 -16.82 0.0750
2017-08-07 2017-06-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 440 2.09 0.0905
2017-04-28 2017-03-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 431 -7.31 0.0936
2017-02-01 2016-12-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 465 31.36 0.1017
2016-10-31 2016-09-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 354 -6.60 0.0794
2016-08-04 2016-06-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 379 20.32 0.0861
2016-04-29 2016-03-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 315 16.67 0.0716
2016-01-29 2015-12-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 270 -10.00 0.0614
2015-11-05 2015-09-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 300 7.14 0.0720
2015-08-04 2015-06-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 0 0.00 280 1.45 0.0624
2015-05-08 2015-03-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 1,976 0.00 276 0.0603
2015-02-03 2014-12-31 13F MARTIN MARIETTA MATLS Common Stock 573284106 0 -1,976 -100.00 0 -100.00
2014-11-12 2014-09-30 13F MARTIN MARIETTA MATLS Common Stock 573284106 1,976 1,976 255 0.0557
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.