Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionPeapack Gladstone Financial Corp
Latest Disclosed Ownership32,688 shares
Latest Disclosed Value $ 19,243
Peapack Gladstone Financial Corp reports 3.86% increase in ownership of MLM / Martin Marietta Materials, Inc.

On May 15, 2026 - Peapack Gladstone Financial Corp filed a 13F-HR form disclosing ownership of 32,688 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $19,243 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 31,474 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 3.86% 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)
2026-05-15 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 32,688 1,214 3.86 19 0.00 0.2462
2026-02-10 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 31,474 415 1.34 20 0.00 0.2468
2025-11-14 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 31,059 -246 -0.79 20 11.76 0.2550
2025-08-14 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 31,305 219 0.70 17 21.43 0.2432
2025-05-12 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 31,086 -1,697 -5.18 15 -12.50 0.2206
2025-02-13 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 32,783 -566 -1.70 17 -5.88 0.2456
2024-11-26 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 33,349 -1,840 -5.23 18 -10.53 0.2588
2024-08-13 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 35,189 -101 -0.29 19 -9.52 0.2930
2024-05-10 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 35,290 200 0.57 22 23.53 0.3388
2024-02-13 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 35,090 -413 -1.16 18 21.43 0.2946
2023-11-14 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 35,503 1,607 4.74 15 -6.67 0.2697
2023-08-14 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 33,896 4,809 16.53 16 50.00 0.2789
2023-05-15 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 29,087 1,426 5.16 10 -99.89 0.1965
2023-02-14 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 27,661 1 0.00 9,348 4.93 0.1841
2022-11-14 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 27,660 31 0.11 8,909 7.75 0.1817
2022-08-12 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 27,629 -370 -1.32 8,268 -23.28 0.1890
2022-05-16 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 27,999 79 0.28 10,777 -12.37 0.2111
2022-02-15 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 27,920 -54 -0.19 12,299 28.66 0.2323
2021-11-15 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 27,974 435 1.58 9,559 -1.34 0.1976
2021-08-16 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 27,539 174 0.64 9,689 5.43 0.2322
2021-05-14 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 27,365 4,856 21.57 9,190 43.77 0.2372
2021-02-16 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 22,509 -2,710 -10.75 6,392 7.68 0.1912
2020-11-16 2020-09-30 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 25,219 1,147 4.76 5,936 19.36 0.2156
2020-08-14 2020-06-30 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 24,072 -357 -1.46 4,973 7.57 0.1969
2020-05-15 2020-03-31 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 24,429 105 0.43 4,623 -32.03 0.2181
2020-02-14 2019-12-31 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 24,324 -650 -2.60 6,802 -0.64 0.2734
2019-11-13 2019-09-30 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 24,974 -1,025 -3.94 6,846 14.42 0.2942
2019-08-15 2019-06-30 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 25,999 870 3.46 5,983 18.36 0.2594
2019-05-15 2019-03-31 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 25,129 873 3.60 5,055 21.25 0.2285
2019-02-14 2018-12-31 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 24,256 1,901 8.50 4,169 2.51 0.2132
2018-11-14 2018-09-30 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 22,355 2,659 13.50 4,067 -7.55 0.1985
2018-08-09 2018-06-30 13F MARTIN MARIETTA MATLS COMMON STOCK 573284106 19,696 7,975 68.04 4,399 81.10 0.2294
2018-05-10 2018-03-31 13F MARTIN MARIETTA MATLS DOMESTIC COMMON STOCKS 573284106 11,721 3,945 50.73 2,430 41.39 0.1314
2018-02-14 2017-12-31 13F MARTIN MARIETTA MATLS DOMESTIC COMMON STOCKS 573284106 7,776 5,875 309.05 1,719 338.27 0.0923
2017-11-14 2017-09-30 13F MARTIN MARIETTA MATLS DOMESTIC COMMON STOCKS 573284106 1,901 1,901 392 0.0225
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.