Martin Marietta Materials, Inc.
DE ˙ DB ˙ US5732841060
499,80 € ↑4,40 (0,89%)
2026-06-04
DEL PRIS
SecurityDE:MMX / Martin Marietta Materials, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,396,229 shares
Ownership 3.00%
Morgan Stanley ownership in MMX / Martin Marietta Materials, Inc.

2014-02-11 - Morgan Stanley has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,396,229 shares of Martin Marietta Materials, Inc. (DE:MMX). This represents 3.0 percent ownership of the company.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2014-02-11 2014-02-11 13G/A 1,396,229 3.00
2013-02-13 2013-02-13 13G 2,576,188 5.60

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 1,341,601 -25,415 -1.86 789,776 -7.21 0.0476
2026-05-27 2025-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 1,367,016 68,382 5.27 851,188 3.99 0.0508
2026-02-13 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,367,016 68,382 851,188 0.0508
2026-05-27 2025-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 1,298,634 17,843 1.39 818,505 16.41 0.0496
2025-11-14 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,298,634 17,843 818,505 0.0496
2025-08-15 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,280,791 355,579 38.43 703,105 58.94 0.0458
2025-05-15 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 925,212 -26,140 -2.75 442,373 -9.97 0.0316
2025-05-15 2024-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 951,352 112,237 13.38 491,374 8.79 0.0344
2025-02-14 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 951,352 112,237 491,374 0.0344
2025-05-14 2024-09-30 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 839,115 32,581 4.04 451,655 3.36 0.0328
2025-02-14 2024-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 839,115 32,581 451,655 0.0327
2024-11-14 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 839,115 32,581 451,655 0.0039
2025-05-14 2024-06-30 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 806,534 22,774 2.91 436,982 -9.19 0.0338
2024-10-17 2024-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 806,534 22,774 436,982 0.0338
2024-08-14 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 806,534 22,774 436,982 0.0338
2024-10-17 2024-03-31 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 783,760 -2,683 -0.34 481,183 22.64 0.0386
2024-08-16 2024-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 783,760 -2,683 481,183 0.0045
2024-05-15 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 783,760 -2,683 481,183 0.0386
2024-08-16 2023-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 786,443 35,812 4.77 392,366 27.34 0.0346
2024-02-13 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 786,443 35,812 392,366 0.0346
2023-11-15 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 750,631 -26,191 -3.37 308,120 -14.09 0.0313
2023-08-14 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 776,822 66,931 9.43 358,652 42.29 0.0353
2023-05-15 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 709,891 -27,930 -3.79 252,055 1.08 0.0270
2023-02-14 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 737,821 251,047 51.57 249,362 59.04 0.0283
2022-11-14 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 486,774 -93,047 -16.05 156,788 -9.63 0.0214
2022-10-27 2022-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 579,821 142,328 32.53 173,505 3.04 0.0225
2022-08-15 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 579,821 142,328 173,505 0.0045
2022-10-27 2022-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 437,493 -478,908 -52.26 168,386 -58.29 0.0227
2022-05-13 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 437,493 -478,908 168,386 0.0227
2022-02-14 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 916,401 -119,905 -11.57 403,693 14.01 0.0498
2021-11-15 2021-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,036,306 -10,846 -1.04 354,084 -3.89 0.0477
2021-08-23 2021-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 1,047,152 -636,955 -37.82 368,399 -34.86 0.0486
2021-08-16 2021-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,047,152 -636,955 368,399 0.0101
2021-05-17 2021-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,684,107 -1,224,728 -42.10 565,558 -31.53 0.0831
2021-02-16 2020-12-31 13F MARTIN MARIETTA MATLS COM 573284106 2,908,835 501,135 20.81 826,022 45.77 0.1276
2020-11-13 2020-09-30 13F MARTIN MARIETTA MATLS COM 573284106 2,407,700 1,383,932 135.18 566,676 167.96 0.1096
2020-08-14 2020-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,023,768 89,332 9.56 211,480 19.60 0.0468
2020-05-26 2020-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 934,436 -315,598 -25.25 176,822 -49.42 0.0481
2020-05-15 2020-03-31 13F MARTIN MARIETTA MATLS COM 573284106 934,436 -315,598 176,822 13,583.6157
2020-02-14 2019-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,250,034 -304,390 -19.58 349,559 -17.96 0.0813
2019-11-14 2019-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,554,424 -24,794 -1.57 426,067 17.25 0.1128
2019-08-14 2019-06-30 13F MARTIN MARIETTA MATLS COM 573284106 1,579,218 -173,841 -9.92 363,394 3.04 0.0967
2019-05-15 2019-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,753,059 -1,715,539 -49.46 352,682 -40.84 0.0998
2019-02-14 2018-12-31 13F MARTIN MARIETTA MATLS COM 573284106 3,468,598 -197,248 -5.38 596,149 -10.62 0.1784
2019-04-23 2018-09-30 13F/A-2 MARTIN MARIETTA MATLS COM 573284106 3,665,846 173,731 4.97 666,999 -14.48 0.1669
2018-11-20 2018-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 3,665,846 0 666,999 0.1669
2018-11-14 2018-09-30 13F MARTIN MARIETTA MATLS COM 573284106 3,665,846 173,731 666,999
2019-04-23 2018-06-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 3,492,115 760,872 27.86 779,894 37.74 0.2107
2018-08-14 2018-06-30 13F MARTIN MARIETTA MATLS COM 573284106 3,492,115 760,872 779,894
2019-04-23 2018-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 2,731,243 987,007 56.59 566,187 46.85 0.1571
2018-05-14 2018-03-31 13F MARTIN MARIETTA MATLS COM 573284106 2,731,243 987,007 566,187
2019-04-23 2017-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 1,744,236 -91,896 -5.00 385,548 1.82 0.1055
2018-02-14 2017-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,744,236 -91,896 385,548
2017-11-14 2017-09-30 13F MARTIN MARIETTA MATLS COM 573284106 1,836,132 1,707,035 1,322.29 378,664 1,217.83 0.1134
2017-08-11 2017-06-30 13F MARTIN MARIETTA MATLS COM 573284106 129,097 -438,188 -77.24 28,734 -76.79 0.0087
2017-05-22 2017-03-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 567,285 -237,286 -29.49 123,809 -30.54 0.0381
2017-05-12 2017-03-31 13F MARTIN MARIETTA MATLS COM 573284106 567,285 123,809
2017-02-22 2016-12-31 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 804,571 621,323 339.06 178,236 443.05 0.0583
2017-02-13 2016-12-31 13F MARTIN MARIETTA MATLS COM 573284106 804,571 178,236
2016-11-10 2016-09-30 13F MARTIN MARIETTA MATLS COM 573284106 183,248 94,476 106.43 32,821 92.57 0.0112
2016-08-12 2016-06-30 13F MARTIN MARIETTA MATLS COM 573284106 88,772 -21,918 -19.80 17,044 -3.47 0.0062
2016-05-12 2016-03-31 13F MARTIN MARIETTA MATLS COM 573284106 110,690 -137,743 -55.44 17,657 -47.96 0.0068
2016-02-09 2015-12-31 13F MARTIN MARIETTA MATLS COM 573284106 248,433 73,879 42.32 33,931 27.93 0.0123
2016-02-08 2015-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 174,554 -30,184 -14.74 26,524 -8.46 0.0098
2015-11-09 2015-09-30 13F MARTIN MARIETTA MATLS COM 573284106 174,554 26,524
2015-08-12 2015-06-30 13F MARTIN MARIETTA MATLS COM 573284106 204,738 142,245 227.62 28,974 231.66 0.0100
2015-05-14 2015-03-31 13F MARTIN MARIETTA MATLS COM 573284106 62,493 9,149 17.15 8,736 48.47 0.0032
2015-02-13 2014-12-31 13F MARTIN MARIETTA MATLS COM 573284106 53,344 -150,222 -73.80 5,884 -77.58 0.0022
2014-12-16 2014-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 203,566 -1,247,132 -85.97 26,248 -85.90 0.0101
2014-11-14 2014-09-30 13F MARTIN MARIETTA MATLS COM 573284106 203,566 26,248
2014-05-13 2014-03-31 13F MARTIN MARIETTA MATLS COM 573284106 1,450,698 -69,472 -4.57 186,197 22.56 0.0780
2014-02-13 2013-12-31 13F MARTIN MARIETTA MATLS COM 573284106 1,520,170 -1,558,630 -50.62 151,926 -49.73 0.0646
2013-11-13 2013-09-30 13F MARTIN MARIETTA MATERIALS I COM 573284106 3,078,800 10,783 0.35 302,245 0.10 0.1429
2013-08-08 2013-06-30 13F MARTIN MARIETTA MATERIALS I COM 573284106 3,068,017 3,068,017 301,954 0.1523
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.