Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionValeo Financial Advisors, LLC
Latest Disclosed Ownership2,404 shares
Latest Disclosed Value $ 1,415,334
Valeo Financial Advisors, LLC reports 165.05% increase in ownership of MLM / Martin Marietta Materials, Inc.

On May 8, 2026 - Valeo Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 2,404 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $1,415,334 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 907 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 165.05% 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)
2026-05-08 2026-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 2,404 1,497 165.05 1,415 150.89 0.0338
2026-02-04 2025-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 907 205 29.20 565 27.60 0.0125
2025-11-03 2025-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 702 -179 -20.32 442 -8.49 0.0101
2025-09-12 2025-06-30 13F/A-1 MARTIN MARIETTA MATLS Stock 573284106 881 1 0.11 483 15.00 0.0119
2025-07-22 2025-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 849 -31 466 0.0112
2025-04-30 2025-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 880 19 2.21 421 -5.41 0.0117
2025-01-30 2024-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 861 43 5.26 445 0.91 0.0124
2024-10-10 2024-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 818 -29 -3.42 440 -3.93 0.0125
2024-07-10 2024-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 847 121 16.67 459 6.76 0.0143
2024-04-25 2024-03-31 13F/A-1 MARTIN MARIETTA MATLS Stock 573284106 726 -534 -42.38 430 -31.69 0.0154
2024-04-19 2024-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 739 -521 454 0.0156
2024-01-29 2023-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 1,260 25 2.02 629 24.11 0.0254
2023-10-20 2023-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 1,235 202 19.55 507 6.30 0.0231
2023-07-14 2023-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 1,033 -272 -20.84 477 2.81 0.0218
2023-04-17 2023-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 1,305 364 38.68 463 45.60 0.0223
2023-02-09 2022-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 941 175 22.85 318 28.74 0.0174
2022-10-31 2022-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 766 27 3.65 247 11.76 0.0157
2022-08-03 2022-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 739 -330 -30.87 221 -46.23 0.0139
2022-04-28 2022-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 1,069 347 48.06 411 29.25 0.0209
2022-01-07 2021-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 722 -281 -28.02 318 -7.29 0.0172
2021-11-02 2021-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 1,003 15 1.52 343 -1.44 0.0196
2021-07-22 2021-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 988 380 62.50 348 70.59 0.0211
2021-04-12 2021-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 608 20 3.40 204 22.16 0.0094
2021-02-11 2020-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 588 -16 -2.65 167 17.61 0.0086
2020-10-28 2020-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 604 -337 -35.81 142 -26.80 0.0124
2020-07-20 2020-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 941 -33 -3.39 194 -3.96 0.0177
2020-04-13 2020-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 974 -15 -1.52 202 -27.08 0.0215
2020-01-24 2019-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 989 -29 -2.85 277 -0.72 0.0269
2019-10-15 2019-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 1,018 -52 -4.86 279 13.41 0.0308
2019-07-10 2019-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 1,070 50 4.90 246 20.00 0.0282
2019-04-12 2019-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 1,020 16 1.59 205 18.50 0.0249
2019-01-30 2018-12-31 13F MARTIN MARIETTA MATLS Stock 573284106 1,004 15 1.52 173 2.37 0.0243
2018-11-01 2018-09-30 13F MARTIN MARIETTA MATLS Stock 573284106 989 -220 -18.20 169 -30.45 0.0228
2018-08-14 2018-06-30 13F MARTIN MARIETTA MATLS Stock 573284106 1,209 866 252.48 243 242.25 0.0340
2018-04-12 2018-03-31 13F MARTIN MARIETTA MATLS Stock 573284106 343 -180 -34.42 71 -38.79 0.0114
2018-02-09 2017-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 523 313 149.05 116 169.77 0.0190
2017-11-15 2017-09-30 13F/A-1 MARTIN MARIETTA MATLS INC COM Stock 573284106 210 210 43 0.0097
2017-11-14 2017-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 210 43
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.