Martin Marietta Materials, Inc.
DE ˙ DB ˙ US5732841060
499,80 € ↑4,40 (0,89%)
2026-06-04
DEL PRIS
SecurityDE:MMX / Martin Marietta Materials, Inc.
InstitutionCircle Wealth Management, LLC
Latest Disclosed Ownership803 shares
Latest Disclosed Value $ 472,710
Circle Wealth Management, LLC reports 18.72% decrease in ownership of MMX / Martin Marietta Materials, Inc.

On May 12, 2026 - Circle Wealth Management, LLC filed a 13F-HR form disclosing ownership of 803 shares of Martin Marietta Materials, Inc. (DE:MMX) valued at $403,427 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 988 shares of Martin Marietta Materials, Inc.. This represents a change in shares of -18.72% during the quarter. The current value of the position is $401,339 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)
2026-05-12 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 803 -185 -18.72 473 -23.25 0.0067
2026-02-12 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 988 61 6.58 615 5.31 0.0095
2025-11-14 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 927 0 0.00 584 14.96 0.0114
2025-08-14 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 927 -20 -2.11 509 12.39 0.0110
2025-05-14 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 947 107 12.74 453 4.39 0.0104
2025-02-14 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 840 0 0.00 434 -4.20 0.0092
2024-11-14 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 840 0 0.00 452 -0.66 0.0100
2024-08-13 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 840 -110 -11.58 455 -21.96 0.0105
2024-05-14 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 950 186 24.35 583 53.02 0.0145
2024-02-15 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 764 -229 -23.06 381 -6.39 0.0097
2023-11-15 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 993 237 31.35 408 16.62 0.0102
2023-08-11 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 756 0 0.00 349 30.22 0.0462
2023-05-09 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 756 0 0.00 268 5.10 0.0388
2023-02-13 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 756 5 0.67 256 5.37 0.0395
2022-11-14 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 751 -5 -0.66 242 7.08 0.0399
2022-08-12 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 756 -4 -0.53 226 -22.87 0.0359
2022-05-16 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 760 0 0.00 293 -12.54 0.0385
2022-02-14 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 760 -424 -35.81 335 -17.28 0.0437
2021-11-12 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,184 0 0.00 405 -2.88 0.0584
2021-08-16 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,184 -101 -7.86 417 -3.47 0.0599
2021-05-17 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,285 -409 -24.14 432 -10.19 0.0689
2021-02-18 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,694 0 0.00 481 20.55 0.0689
2020-11-16 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,694 -163 -8.78 399 3.91 0.0659
2020-08-14 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,857 -23 -1.22 384 7.87 0.0672
2020-05-15 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,880 1,880 356 0.0694
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.