Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionGlobal Retirement Partners, LLC
Latest Disclosed Ownership523 shares
Latest Disclosed Value $ 325,866
Global Retirement Partners, LLC reports 156.37% increase in ownership of MLM / Martin Marietta Materials, Inc.

On February 6, 2026 - Global Retirement Partners, LLC filed a 13F-HR form disclosing ownership of 523 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $325,866 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 21, 2025 disclosing 204 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 156.37% 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)
2026-02-06 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 523 319 156.37 326 153.91 0.0058
2025-10-21 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 204 -108 -34.62 129 -25.15 0.0029
2025-08-12 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 312 -45 -12.61 171 -7.07 0.0042
2025-01-31 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 357 -487 -57.70 184 -59.47 0.0053
2024-10-16 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 844 164 24.12 454 23.37 0.0137
2024-07-23 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 680 281 70.43 368 50.82 0.0115
2024-04-23 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 399 -61 -13.26 245 7.49 0.0091
2024-01-18 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 460 22 5.02 228 24.04 0.0095
2023-10-13 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 438 -39 -8.18 183 -16.82 0.0092
2023-07-20 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 477 43 9.91 220 37.50 0.0108
2023-05-08 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 434 130 42.76 160 56.86 0.0085
2023-02-13 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 304 14 4.83 103 5.15 0.0071
2022-11-03 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 290 15 5.45 97 18.29 0.0073
2022-07-15 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 275 3 1.10 82 -6.82 0.0066
2022-07-14 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 272 272 88 0.0069
2022-01-21 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 0 -305 -100.00 0 -100.00
2021-10-22 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 305 2 0.66 104 -2.80 0.0103
2021-07-15 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 303 126 71.19 107 81.36 0.0110
2021-04-14 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 177 21 13.46 59 34.09 0.0069
2021-01-13 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 156 32 25.81 44 51.72 0.0055
2020-10-09 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 124 2 1.64 29 16.00 0.0042
2020-07-13 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 122 -9 -6.87 25 0.00 0.0040
2020-04-28 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 131 -102 -43.78 25 -61.54 0.0047
2020-01-23 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 233 -22 -8.63 65 -7.14 0.0100
2019-11-19 2019-09-30 13F MARTIN MARIETTA MATLS COM 573284106 255 1 0.39 70 18.64 0.0115
2019-11-19 2019-06-30 13F MARTIN MARIETTA MATLS COM 573284106 254 62 32.29 59 51.28 0.0113
2019-05-07 2019-03-31 13F MARTIN MARIETTA MATLS COM 573284106 192 87 82.86 39 116.67 0.0094
2019-02-22 2018-12-31 13F MARTIN MARIETTA MATLS COM 573284106 105 105 18 0.0046
2018-08-13 2018-06-30 13F MARTIN MARIETTA MATLS COM 573284106 0 -35 -100.00 0 -100.00
2018-08-10 2018-03-31 13F MARTIN MARIETTA MATLS COM 573284106 35 0 0.00 7 -12.50 0.0019
2018-08-13 2017-12-31 13F MARTIN MARIETTA MATLS COM 573284106 35 35 8 0.0022
2018-08-10 2017-09-30 13F MARTIN MARIETTA MATLS COM 573284106 0 -342 -100.00 0 -100.00
2018-08-10 2017-06-30 13F MARTIN MARIETTA MATLS COM 573284106 342 0 0.00 76 1.33 0.0357
2018-08-10 2017-03-31 13F MARTIN MARIETTA MATLS COM 573284106 342 230 205.36 75 200.00 0.0419
2018-08-10 2016-12-31 13F MARTIN MARIETTA MATLS COM 573284106 112 112 25 0.0168
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.