Martin Marietta Materials, Inc.
MX ˙ BMV ˙ US5732841060
SecurityMX:MLM / Martin Marietta Materials, Inc.
InstitutionRather & Kittrell, Inc.
Latest Disclosed Ownership31,554 shares
Latest Disclosed Value $ 18,575,409
Rather & Kittrell, Inc. reports 0.02% increase in ownership of MLM / Martin Marietta Materials, Inc.

On May 12, 2026 - Rather & Kittrell, Inc. filed a 13F-HR form disclosing ownership of 31,554 shares of Martin Marietta Materials, Inc. (MX:MLM) valued at $18,575,409 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 31,548 shares of Martin Marietta Materials, Inc.. This represents a change in shares of 0.02% 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)
2026-05-12 2026-03-31 13F MARTIN MARIETTA MATLS COM 573284106 31,554 6 0.02 18,575 -5.44 2.8668
2026-01-28 2025-12-31 13F MARTIN MARIETTA MATLS COM 573284106 31,548 5 0.02 19,644 -1.19 3.1628
2025-10-28 2025-09-30 13F MARTIN MARIETTA MATLS COM 573284106 31,543 13 0.04 19,881 14.86 3.4808
2025-08-12 2025-06-30 13F MARTIN MARIETTA MATLS COM 573284106 31,530 67 0.21 17,309 15.06 3.4275
2025-05-15 2025-03-31 13F MARTIN MARIETTA MATLS COM 573284106 31,463 1 0.00 15,043 -7.43 3.2628
2025-02-13 2024-12-31 13F MARTIN MARIETTA MATLS COM 573284106 31,462 1 0.00 16,250 -4.03 3.8199
2025-01-31 2024-09-30 13F/A-1 MARTIN MARIETTA MATLS COM 573284106 31,461 1 0.00 16,934 -0.66 4.1485
2024-11-01 2024-09-30 13F MARTIN MARIETTA MATLS COM 573284106 31,461 1 16,934 4.1485
2024-07-29 2024-06-30 13F MARTIN MARIETTA MATLS COM 573284106 31,460 0 0.00 17,045 -11.75 4.6899
2024-04-25 2024-03-31 13F MARTIN MARIETTA MATLS COM 573284106 31,460 0 0.00 19,315 23.06 5.7755
2024-02-02 2023-12-31 13F MARTIN MARIETTA MATLS COM 573284106 31,460 0 0.00 15,696 21.54 5.4769
2023-11-09 2023-09-30 13F MARTIN MARIETTA MATLS COM 573284106 31,460 0 0.00 12,914 -11.09 5.2080
2023-07-28 2023-06-30 13F MARTIN MARIETTA MATLS COM 573284106 31,460 0 0.00 14,525 30.03 6.0680
2023-05-04 2023-03-31 13F MARTIN MARIETTA MATLS COM 573284106 31,460 3 0.01 11,170 5.07 5.0776
2023-02-09 2022-12-31 13F MARTIN MARIETTA MATLS COM 573284106 31,457 29 0.09 10,632 5.03 5.6539
2022-11-14 2022-09-30 13F MARTIN MARIETTA MATLS COM 573284106 31,428 0 0.00 10,122 7.64 10.6362
2022-08-09 2022-06-30 13F MARTIN MARIETTA MATLS COM 573284106 31,428 0 0.00 9,404 -22.26 10.3105
2022-05-10 2022-03-31 13F MARTIN MARIETTA MATLS COM 573284106 31,428 0 0.00 12,096 -12.63 11.7929
2022-02-18 2021-12-31 13F MARTIN MARIETTA MATLS COM 573284106 31,428 31,428 13,844 12.1795
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.