Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionD.B. Root & Company, LLC
Latest Disclosed Ownership1,814 shares
Latest Disclosed Value $ 1,096,541
D.B. Root & Company, LLC ownership in LMT / Lockheed Martin Corporation

On May 12, 2026 - D.B. Root & Company, LLC filed a 13F-HR form disclosing ownership of 1,814 shares of Lockheed Martin Corporation (MX:LMT) valued at $1,096,541 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 1,814 shares of Lockheed Martin Corporation. This represents a change in shares of 0.00% 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 LOCKHEED MARTIN COM 539830109 1,814 0 0.00 1,097 24.97 0.2620
2026-02-03 2025-12-31 13F LOCKHEED MARTIN COM 539830109 1,814 8 0.44 878 -2.66 0.2141
2025-11-06 2025-09-30 13F LOCKHEED MARTIN COM 539830109 1,806 16 0.89 901 8.69 0.2288
2025-07-22 2025-06-30 13F LOCKHEED MARTIN COM 539830109 1,790 -163 -8.35 829 -4.93 0.2448
2025-05-14 2025-03-31 13F LOCKHEED MARTIN COM 539830109 1,953 -114 -5.52 873 -13.15 0.2817
2025-01-17 2024-12-31 13F LOCKHEED MARTIN COM 539830109 2,067 55 2.73 1,005 -14.63 0.3196
2024-10-31 2024-09-30 13F LOCKHEED MARTIN COM 539830109 2,012 -420 -17.27 1,177 3.52 0.3877
2024-07-15 2024-06-30 13F LOCKHEED MARTIN COM 539830109 2,432 -1,034 -29.83 1,136 -27.92 0.3876
2024-04-17 2024-03-31 13F LOCKHEED MARTIN COM 539830109 3,466 158 4.78 1,577 5.14 0.5329
2024-01-16 2023-12-31 13F LOCKHEED MARTIN COM 539830109 3,308 -49 -1.46 1,499 9.26 0.5435
2023-11-03 2023-09-30 13F LOCKHEED MARTIN COM 539830109 3,357 100 3.07 1,373 -8.47 0.5352
2023-07-18 2023-06-30 13F LOCKHEED MARTIN COM 539830109 3,257 23 0.71 1,500 -1.90 0.5672
2023-04-18 2023-03-31 13F LOCKHEED MARTIN COM 539830109 3,234 133 4.29 1,529 1.33 0.6015
2023-01-27 2022-12-31 13F LOCKHEED MARTIN COM 539830109 3,101 42 1.37 1,509 27.69 0.6375
2022-10-26 2022-09-30 13F Lockheed Martin COM 539830109 3,059 -76 -2.42 1,181 -12.39 0.5378
2022-07-21 2022-06-30 13F Lockheed Martin COM 539830109 3,135 -45 -1.42 1,348 -3.92 0.5781
2022-05-06 2022-03-31 13F Lockheed Martin COM 539830109 3,180 24 0.76 1,403 25.16 0.5223
2022-02-01 2021-12-31 13F Lockheed Martin COM 539830109 3,156 -15 -0.47 1,121 2.47 0.4042
2021-10-22 2021-09-30 13F Lockheed Martin COM 539830109 3,171 111 3.63 1,094 -5.53 0.4266
2021-07-28 2021-06-30 13F Lockheed Martin COM 539830109 3,060 36 1.19 1,158 3.67 0.4325
2021-05-04 2021-03-31 13F Lockheed Martin COM 539830109 3,024 80 2.72 1,117 6.89 0.4391
2021-02-09 2020-12-31 13F Lockheed Martin COM 539830109 2,944 5 0.17 1,045 -7.19 0.4172
2020-10-22 2020-09-30 13F Lockheed Martin COM 539830109 2,939 -439 -13.00 1,126 -8.60 0.4519
2020-08-06 2020-06-30 13F Lockheed Martin COM 539830109 3,378 -29 -0.85 1,232 6.76 0.5349
2020-04-29 2020-03-31 13F Lockheed Martin COM 539830109 3,407 342 11.16 1,154 -3.27 0.5824
2020-01-14 2019-12-31 13F Lockheed Martin COM 539830109 3,065 -110 -3.46 1,193 -3.63 0.5255
2019-10-28 2019-09-30 13F Lockheed Martin COM 539830109 3,175 7 0.22 1,238 7.47 0.5767
2019-07-19 2019-06-30 13F Lockheed Martin COM 539830109 3,168 -325 -9.30 1,152 9.92 0.5105
2019-04-12 2019-03-31 13F Lockheed Martin Stock 539830109 3,493 225 6.88 1,048 22.43 0.4473
2019-01-25 2018-12-31 13F/A-1 Lockheed Martin Stock 539830109 3,268 -20 -0.61 856 -24.71 0.4258
2019-01-24 2018-12-31 13F Lockheed Martin Stock 539830109 3,288 0 1,137 0.5009
2018-11-05 2018-09-30 13F Lockheed Martin Stock 539830109 3,288 -15 -0.45 1,137 16.50 0.5009
2018-07-25 2018-06-30 13F Lockheed Martin Stock 539830109 3,303 -57 -1.70 976 -14.01 0.4605
2018-05-02 2018-03-31 13F Lockheed Martin Stock 539830109 3,360 335 11.07 1,135 16.89 0.5993
2018-02-22 2017-12-31 13F LOCKHEED MARTIN COM 539830109 3,025 3,025 971 0.8318
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.