Martin Marietta Materials, Inc.
US ˙ NYSE ˙ US5732841060

SecurityMLM / Martin Marietta Materials, Inc.
InstitutionIHT Wealth Management, LLC
Latest Disclosed Ownership397 shares
Latest Disclosed Value $ 233,632
IHT Wealth Management, LLC reports 2.58% increase in ownership of MLM / Martin Marietta Materials, Inc.

On May 15, 2026 - IHT Wealth Management, LLC filed a 13F-HR form disclosing ownership of 397 shares of Martin Marietta Materials, Inc. (US:MLM) valued at $233,706 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 387 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 2.58% during the quarter. The current value of the position is $230,601 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F Martin Marietta Materials COM 573284106 397 10 2.58 234 -2.92 0.0054
2026-02-17 2025-12-31 13F Martin Marietta Materials COM 573284106 387 -8 -2.03 241 -3.23 0.0059
2025-11-14 2025-09-30 13F Martin Marietta Materials COM 573284106 395 9 2.33 249 16.98 0.0063
2025-08-14 2025-06-30 13F Martin Marietta Materials COM 573284106 386 386 212 0.0058
2025-05-15 2025-03-31 13F Martin Marietta Materials COM 573284106 0 -411 -100.00 0 -100.00
2025-02-14 2024-12-31 13F Martin Marietta Materials COM 573284106 411 -57 -12.18 212 -15.54 0.0068
2024-11-14 2024-09-30 13F Martin Marietta Materials COM 573284106 468 57 13.87 252 13.06 0.0071
2024-08-14 2024-06-30 13F MARTIN MARIETTA MATERIALS INC COM COM 573284106 411 -33 -7.43 222 -18.38 0.0083
2024-05-15 2024-03-31 13F Martin Marietta Materials COM 573284106 444 -45 -9.20 273 11.48 0.0109
2024-02-14 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 489 489 244 0.0109
2023-11-14 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 0 -482 -100.00 0 -100.00
2023-08-15 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 482 482 223 0.0116
2018-08-13 2018-06-30 13F MARTIN MARIETTA COM 573284106 0 -51 -100.00 0 -100.00
2018-05-14 2018-03-31 13F MARTIN MARIETTA COM 573284106 51 1 2.00 10 -16.67 0.0027
2018-02-14 2017-12-31 13F MARTIN MARIETTA COM 573284106 50 50 12 0.0032
2017-11-14 2017-09-30 13F MARTIN MARIETTA COM 573284106 0 -35 -100.00 0 -100.00
2017-08-14 2017-06-30 13F/A-1 MARTIN MARIETTA COM 573284106 35 0 0.00 21 162.50 0.0102
2017-08-14 2017-06-30 13F MARTIN MARIETTA COM 573284106 35 0 1
2017-05-15 2017-03-31 13F MARTIN MARIETTA COM 573284106 35 17 94.44 8 100.00 0.0053
2017-02-14 2016-12-31 13F MARTIN MARIETTA COM 573284106 18 18 4 0.0030
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.