Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionWealthfront Advisers Llc
Latest Disclosed Ownership6,375 shares
Latest Disclosed Value $ 3,752,835
Wealthfront Advisers Llc reports 0.66% increase in ownership of MLM / Martin Marietta Materials, Inc.

On May 5, 2026 - Wealthfront Advisers Llc filed a 13F-HR form disclosing ownership of 6,375 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $3,752,835 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 6,333 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 0.66% 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)
2026-05-05 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 6,375 42 0.66 3,753 -4.84 0.0082
2026-01-30 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 6,333 578 10.04 3,943 8.71 0.0088
2025-11-06 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 5,755 219 3.96 3,627 19.35 0.0085
2025-07-31 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 5,536 138 2.56 3,039 17.79 0.0078
2025-05-02 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 5,398 1,091 25.33 2,581 16.01 0.0069
2025-04-01 2024-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 4,307 236 5.80 2,225 1.51 0.0065
2025-02-07 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 96,101 92,030 2,876 0.0087
2024-11-12 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 4,071 -228 -5.30 2,191 -5.93 0.0067
2024-08-14 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 4,299 -13 -0.30 2,329 -12.01 0.0078
2024-04-19 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 4,312 -90 -2.04 2,647 20.54 0.0093
2024-02-09 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 4,402 305 7.44 2,196 30.64 0.0084
2023-11-01 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 4,097 91 2.27 1,682 -9.09 0.0072
2023-08-07 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 4,006 470 13.29 1,850 47.33 0.0078
2023-04-28 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 3,536 412 13.19 1,255 18.96 0.0057
2023-02-10 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 3,124 -583 -15.73 1,056 -11.64 0.0051
2022-11-14 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 3,707 871 30.71 1,194 40.64 0.0063
2022-07-20 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 2,836 -687 -19.50 849 -37.39 0.0043
2022-05-16 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 3,523 353 11.14 1,356 -2.87 0.0059
2022-01-21 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 3,170 182 6.09 1,396 36.73 0.0059
2021-11-15 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 2,988 197 7.06 1,021 3.97 0.0047
2021-08-16 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 2,791 72 2.65 982 7.56 0.0047
2021-05-14 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 2,719 53 1.99 913 20.61 0.0049
2021-02-16 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 2,666 4 0.15 757 20.73 0.0046
2020-11-16 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 2,662 -56 -2.06 627 11.76 0.0045
2020-08-14 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 2,718 -4,283 -61.18 561 -57.66 0.0044
2020-05-15 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 7,001 3,471 98.33 1,325 34.25 0.0120
2020-01-21 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 3,530 1,775 101.14 987 105.20 0.0073
2019-10-15 2019-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,755 106 6.43 481 26.91 0.0040
2019-08-13 2019-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,649 349 26.85 379 44.66 0.0033
2019-05-13 2019-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,300 80 6.56 262 24.76 0.0024
2019-02-14 2018-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,220 1,220 210 0.0022
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.