Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionEnvestnet Asset Management Inc
Latest Disclosed Ownership172,360 shares
Latest Disclosed Value $ 101,465,136
Envestnet Asset Management Inc reports 8.03% increase in ownership of MLM / Martin Marietta Materials, Inc.

On May 4, 2026 - Envestnet Asset Management Inc filed a 13F-HR form disclosing ownership of 172,360 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $101,465,136 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 159,550 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 8.03% 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)
2026-05-04 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 172,360 12,810 8.03 101,465 2.14 0.0272
2026-02-10 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 159,550 -22,798 -12.50 99,336 -13.57 0.0295
2025-11-05 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 182,348 1,233 0.68 114,930 15.59 0.0331
2025-08-01 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 181,115 -753 -0.41 99,425 14.34 0.0290
2025-04-29 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 181,868 -5,073 -2.71 86,956 -9.94 0.0280
2025-02-13 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 186,941 -19,979 -9.66 96,555 -13.31 0.0310
2024-11-07 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 206,920 14,563 7.57 111,374 6.87 0.0359
2024-08-08 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 192,357 -839 -0.43 104,219 -12.13 0.0363
2024-05-13 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 193,196 21,625 12.60 118,611 38.57 0.0443
2024-02-13 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 171,571 13,718 8.69 85,598 32.11 0.0354
2023-11-13 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 157,853 56,643 55.97 64,795 38.67 0.0296
2023-08-04 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 101,210 18,583 22.49 46,728 59.28 0.0207
2023-05-11 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 82,627 5,426 7.03 29,338 12.44 0.0141
2023-02-07 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 77,201 271 0.35 26,091 5.30 0.0135
2022-11-10 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 76,930 535 0.70 24,778 8.39 0.0141
2022-08-03 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 76,395 6,123 8.71 22,861 -15.48 0.0128
2022-05-04 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 70,272 2,220 3.26 27,047 -9.78 0.0136
2022-02-04 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 68,052 2,443 3.72 29,978 33.73 0.0148
2021-10-07 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 65,609 -2,739 -4.01 22,417 -6.77 0.0123
2021-08-04 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 68,348 2,869 4.38 24,045 9.35 0.0137
2021-05-04 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 65,479 -17,951 -21.52 21,989 -7.19 0.0143
2021-02-02 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 83,430 4,501 5.70 23,692 27.53 0.0179
2020-10-09 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 78,929 4,583 6.16 18,577 20.96 0.0164
2020-07-08 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 74,346 7,319 10.92 15,358 21.08 0.0150
2020-04-23 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 67,027 27,488 69.52 12,684 14.71 0.0150
2020-02-11 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 39,539 -4,420 -10.05 11,057 -8.23 0.0117
2019-10-17 2019-09-30 13F MARTIN MARIETTA MATLS COM 573284106 43,959 -2,979 -6.35 12,049 11.55 0.0132
2019-08-02 2019-06-30 13F MARTIN MARIETTA MATLS COM 573284106 46,938 2,216 4.96 10,801 20.05 0.0136
2019-05-10 2019-03-31 13F MARTIN MARIETTA MATLS COM 573284106 44,722 1,998 4.68 8,997 22.52 0.0123
2019-02-12 2018-12-31 13F MARTIN MARIETTA MATLS COM 573284106 42,724 42,724 7,343 0.0114
2018-11-14 2018-09-30 13F MARTIN MARIETTA MATLS COM 573284106 0 -22,584 -100.00 0 -100.00
2018-08-10 2018-06-30 13F MARTIN MARIETTA MATLS COM 573284106 22,584 368 1.66 5,044 9.68 0.0115
2018-05-09 2018-03-31 13F MARTIN MARIETTA MATLS COM 573284106 22,216 -229 -1.02 4,599 -7.32 0.0130
2018-02-20 2017-12-31 13F MARTIN MARIETTA MATLS COM 573284106 22,445 893 4.14 4,962 11.63 0.0110
2017-11-13 2017-09-30 13F MARTIN MARIETTA MATLS COM 573284106 21,552 1,950 9.95 4,445 1.88 0.0106
2017-08-14 2017-06-30 13F MARTIN MARIETTA MATLS COM 573284106 19,602 2,257 13.01 4,363 15.27 0.0121
2017-05-09 2017-03-31 13F MARTIN MARIETTA MATLS COM 573284106 17,345 2,477 16.66 3,785 14.98 0.0121
2017-02-14 2016-12-31 13F MARTIN MARIETTA MATLS COM 573284106 14,868 1,137 8.28 3,292 33.88 0.0119
2016-11-14 2016-09-30 13F MARTIN MARIETTA MATLS COM 573284106 13,731 2,089 17.94 2,459 10.02 0.0095
2016-08-15 2016-06-30 13F MARTIN MARIETTA MATLS COM 573284106 11,642 -60 -0.51 2,235 19.71 0.0089
2016-05-16 2016-03-31 13F MARTIN MARIETTA MATLS COM 573284106 11,702 3,388 40.75 1,867 64.35 0.0080
2016-02-16 2015-12-31 13F MARTIN MARIETTA MATLS COM 573284106 8,314 951 12.92 1,136 1.52 0.0052
2015-11-13 2015-09-30 13F MARTIN MARIETTA MATLS COM 573284106 7,363 902 13.96 1,119 22.43 0.0056
2015-08-13 2015-06-30 13F MARTIN MARIETTA MATLS COM 573284106 6,461 275 4.45 914 5.66 0.0043
2015-05-15 2015-03-31 13F MARTIN MARIETTA MATLS COM 573284106 6,186 5,665 1,087.33 865 1,417.54 0.0045
2015-02-12 2014-12-31 13F Martin Marietta Materials COM 573284106 521 -143 -21.54 57 -33.72 0.0006
2014-11-13 2014-09-30 13F Martin Marietta Materials COM 573284106 664 98 17.31 86 14.67 0.0009
2014-08-14 2014-06-30 13F * MARTIN MARIETTA MATLS COM 573284106 566 -9,037 -94.11 75 -93.92 0.0008
2014-05-12 2014-03-31 13F Martin Marietta Materials COM 573284106 9,603 18 0.19 1,233 28.71 0.0137
2014-02-12 2013-12-31 13F Martin Marietta Materials COM 573284106 9,585 22 0.23 958 2.02 0.0110
2013-11-12 2013-09-30 13F Martin Marietta Materials COM 573284106 9,563 -88 -0.91 939 -1.16 0.0115
2013-08-09 2013-06-30 13F Martin Marietta Materials COM 573284106 9,651 9,651 950 0.0123
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.