馬丁瑪麗埃塔材料公司
US ˙ NYSE ˙ US5732841060

SecurityMLM / Martin Marietta Materials, Inc.
InstitutionBogart Wealth, LLC
Latest Disclosed Ownership98 shares
Latest Disclosed Value $ 57,691
Bogart Wealth, LLC reports 13.95% increase in ownership of MLM / Martin Marietta Materials, Inc.

On April 28, 2026 - Bogart Wealth, LLC filed a 13F-HR form disclosing ownership of 98 shares of Martin Marietta Materials, Inc. (US:MLM) valued at $57,691 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 86 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 13.95% during the quarter. The current value of the position is $56,924 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.

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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)
2026-04-28 2026-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 98 12 13.95 58 7.55 0.0022
2026-01-30 2025-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 86 -1 -1.15 54 -1.85 0.0021
2025-10-27 2025-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 87 2 2.35 55 17.39 0.0022
2025-07-30 2025-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 85 0 0.00 47 15.00 0.0020
2025-05-02 2025-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 85 -5 -5.56 41 -13.04 0.0019
2025-01-30 2024-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 90 6 7.14 46 2.22 0.0022
2024-10-23 2024-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 84 0 0.00 45 0.00 0.0021
2024-07-31 2024-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 84 0 0.00 46 -11.76 0.0023
2024-04-25 2024-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 84 0 0.00 52 24.39 0.0027
2024-02-07 2023-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 84 -50 -37.31 42 -25.45 0.0024
2023-10-30 2023-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 -4 -2.90 55 -12.70 0.0034
2023-07-31 2023-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 138 0 0.00 64 31.25 0.0040
2023-04-21 2023-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 138 -3 -2.13 49 2.13 0.0033
2023-02-06 2022-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 141 7 5.22 48 9.30 0.0033
2022-11-03 2022-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 43 7.50 0.0036
2022-07-22 2022-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 -30 -18.29 40 -36.51 0.0035
2022-04-22 2022-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 164 0 0.00 63 -12.50 0.0054
2022-01-19 2021-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 164 0 0.00 72 28.57 0.0065
2021-10-15 2021-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 164 28 20.59 56 16.67 0.0057
2021-08-06 2021-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 136 2 1.49 48 6.67 0.0052
2021-04-16 2021-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 45 18.42 0.0063
2021-01-14 2020-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 38 22.58 0.0071
2020-10-06 2020-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 31 10.71 0.0069
2020-07-08 2020-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 28 12.00 0.0066
2020-04-20 2020-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 25 -32.43 0.0068
2020-02-10 2019-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 37 0.00 0.0118
2019-11-06 2019-09-30 13F/A-1 MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 0.00 37 23.33 0.0182
2019-10-10 2019-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 0 37 0.0170
2019-07-11 2019-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 134 -4 -2.90 30 11.11 0.0181
2019-04-08 2019-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 138 -92 -40.00 27 -30.77 0.0130
2019-01-15 2018-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 230 100 76.92 39 62.50 0.0195
2018-10-16 2018-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 130 -100 -43.48 24 -52.94 0.0139
2018-07-13 2018-06-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 230 0 0.00 51 6.25 0.0310
2018-04-12 2018-03-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 230 0 0.00 48 -5.88 0.0277
2018-01-10 2017-12-31 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 230 0 0.00 51 8.51 0.0327
2017-10-12 2017-09-30 13F MARTIN MARIETTA MATLS INC COM Stock 573284106 230 230 47 0.0348
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.