Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership5,249 shares
Latest Disclosed Value $ 3,089,981
Macquarie Group Ltd reports 7.36% decrease in ownership of MLM / Martin Marietta Materials, Inc.

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 5,249 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $3,089,981 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 5,666 shares of Martin Marietta Materials, Inc.. This represents a change in shares of -7.36% 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 5,249 -417 -7.36 3,090 -12.42 0.0144
2026-02-13 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 5,666 -196,207 -97.19 3,528 -97.23 0.0154
2025-11-13 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 201,873 -25,203 -11.10 127,237 2.07 0.1485
2025-08-14 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 227,076 -44,926 -16.52 124,656 -4.15 0.1529
2025-08-14 2025-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 272,002 -24,115 -8.14 130,052 -14.28 0.1614
2025-05-15 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 272,002 -24,115 128,402 0.1049
2025-02-14 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 296,117 5,242 1.80 151,719 -3.09 0.1841
2024-11-14 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 290,875 -3,132 -1.07 156,564 -1.71 0.1690
2024-08-09 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 294,007 -18,203 -5.83 159,293 -16.81 0.1827
2024-05-14 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 312,210 -37,604 -10.75 191,476 9.71 0.2172
2024-02-14 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 349,814 4,765 1.38 174,526 23.22 0.2016
2023-11-14 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 345,049 608 0.18 141,636 -10.93 0.1779
2023-10-27 2023-06-30 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 344,441 30,281 9.64 159,025 42.56 0.1818
2023-10-12 2023-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 344,441 30,281 159,025 0.1598
2023-08-14 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 344,441 30,281 159,025 0.1613
2023-06-01 2023-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 314,160 92,676 41.84 111,546 49.01 0.1325
2023-05-15 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 314,160 92,676 111,546 0.1024
2023-02-21 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 221,484 184,388 497.06 74,855 526.45 0.0884
2022-11-14 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 37,096 228 0.62 11,949 8.31 0.0147
2022-08-17 2022-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 36,868 -223 -0.60 11,032 -22.72 0.0124
2022-08-15 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 36,868 -223 11,032 0.0040
2022-05-16 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 37,091 51 0.14 14,275 -12.51 0.0109
2022-02-11 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 37,040 -64,701 -63.59 16,317 -53.06 0.0136
2021-11-12 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 101,741 759 0.75 34,763 -2.15 0.0296
2021-08-13 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 100,982 11,941 13.41 35,526 18.81 0.0292
2021-05-14 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 89,041 48,886 121.74 29,902 162.25 0.0423
2021-02-16 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 40,155 -11,845 -22.78 11,402 -6.83 0.0167
2020-11-13 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 52,000 841 1.64 12,238 15.80 0.0207
2020-08-11 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 51,159 0 0.00 10,568 9.16 0.0182
2020-05-15 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 51,159 50,259 5,584.33 9,681 3,741.67 0.0199
2020-03-18 2019-12-31 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 900 -100 -10.00 252 -8.03 0.0004
2020-02-28 2019-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 900 0 252 0.0004
2020-02-14 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 900 -100 252 316.2386
2019-11-14 2019-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,000 400 66.67 274 98.55 0.0005
2019-11-06 2019-06-30 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 600 -75 -11.11 138 2.22 0.0002
2019-09-24 2019-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 600 0 138 0.0002
2019-08-14 2019-06-30 13F MARTIN MARIETTA MATLS COM 573284106 600 -75 138
2019-05-15 2019-03-31 13F MARTIN MARIETTA MATLS COM 573284106 675 -2,495 -78.71 135 -75.23 0.0002
2019-02-15 2018-12-31 13F MARTIN MARIETTA MATLS COM 573284106 3,170 2,455 343.36 545 319.23 0.0011
2018-11-15 2018-09-30 13F MARTIN MARIETTA MATLS COM 573284106 715 -85 -10.62 130 -27.37 0.0002
2019-03-21 2018-06-30 13F/A-1 MARTIN MARIETTA MATLS ORD 573284106 800 0 0.00 179 7.83 0.0003
2018-08-14 2018-06-30 13F MARVELL TECHNOLOGY GROUP ORD 573284106 800 0 179
2018-05-11 2018-03-31 13F MARTIN MARIETTA MATLS COM 573284106 800 0 0.00 166 -4.05 0.0003
2018-02-14 2017-12-31 13F MARTIN MARIETTA MATLS COM 573284106 800 -100 -11.11 173 -6.99 0.0003
2017-11-08 2017-09-30 13F MARTIN MARIETTA MATLS COM 573284106 900 0 0.00 186 -7.46 0.0003
2017-08-14 2017-06-30 13F MARTIN MARIETTA MATLS COM 573284106 900 -2,400 -72.73 201 -72.08 0.0004
2017-05-15 2017-03-31 13F Martin Marietta Materials COM 573284106 3,300 -11,189 -77.22 720 -77.57 0.0013
2017-03-30 2016-12-31 13F/A-1 Martin Marietta Materials Common Stock 573284106 14,489 -1,611 -10.01 3,210 11.30 0.0061
2017-02-15 2016-12-31 13F Martin Marietta Materials Common Stock 573284106 14,489 3,210
2016-11-15 2016-09-30 13F Martin Marietta Materials Common Stock 573284106 16,100 700 4.55 2,884 -2.47 0.0055
2016-09-14 2016-06-30 13F/A-1 Martin Marietta Materials Common Stock 573284106 15,400 -3,700 -19.37 2,957 -2.95 0.0058
2016-08-15 2016-06-30 13F Martin Marietta Materials Common Stock 573284106 15,400 2,957
2016-05-16 2016-03-31 13F Martin Marietta Materials Common Stock 573284106 19,100 -8,300 -30.29 3,047 -18.57 0.0061
2016-02-16 2015-12-31 13F Martin Marietta Materials Common Stock 573284106 27,400 8,500 44.97 3,742 30.29 0.0077
2015-11-16 2015-09-30 13F Martin Marietta Materials Common Stock 573284106 18,900 0 0.00 2,872 7.40 0.0062
2015-08-21 2015-06-30 13F/A-1 Martin Marietta Materials Common Stock 573284106 18,900 -11,300 -37.42 2,674 -36.67 0.0053
2015-08-14 2015-06-30 13F Martin Marietta Materials Common Stock 573284106 18,900 2,674
2015-05-18 2015-03-31 13F Martin Marietta Materials Common Stock 573284106 30,200 -700 -2.27 4,222 23.85 0.0083
2015-02-17 2014-12-31 13F Martin Marietta Materials Common Stock 573284106 30,900 -31,150 -50.20 3,409 -57.39 0.0070
2014-11-14 2014-09-30 13F Martin Marietta Materials Common Stock 573284106 62,050 44,350 250.56 8,001 242.22 0.0172
2014-08-14 2014-06-30 13F MARTIN MARIETTA MATERIALS COMMON 573284106 17,700 0 0.00 2,338 2.90 0.0052
2014-05-15 2014-03-31 13F Martin Marietta Materials Common Stock 573284106 17,700 0 0.00 2,272 28.43 0.0039
2014-02-14 2013-12-31 13F Martin Marietta Materials Common Stock 573284106 17,700 4,900 38.28 1,769 40.73 0.0032
2013-11-14 2013-09-30 13F MARTIN MARIETTA MATERIALS Common Stock 573284106 12,800 0 0.00 1,257 -0.24 0.0025
2013-08-16 2013-06-30 13F/A-1 MARTIN MARIETTA MATERIALS COMMON 573284106 12,800 12,800 1,260 0.0027
2013-08-14 2013-06-30 13F MARTIN MARIETTA MATERIALS COMMON 573284106 12,800 1,260 0.0027
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.