Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionTufton Capital Management
Latest Disclosed Ownership18,374 shares
Latest Disclosed Value $ 11,105
Tufton Capital Management reports 1.96% decrease in ownership of LMT / Lockheed Martin Corporation

On May 12, 2026 - Tufton Capital Management filed a 13F-HR form disclosing ownership of 18,374 shares of Lockheed Martin Corporation (MX:LMT) valued at $11,105 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 18,742 shares of Lockheed Martin Corporation. This represents a change in shares of -1.96% 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 CORP COM COM 539830109 18,374 -368 -1.96 11 22.22 2.0203
2026-01-28 2025-12-31 13F LOCKHEED MARTIN COM 539830109 18,742 -176 -0.93 9 0.00 1.5846
2025-10-31 2025-09-30 13F LOCKHEED MARTIN COM 539830109 18,918 -82 -0.43 9 12.50 1.6834
2025-08-05 2025-06-30 13F LOCKHEED MARTIN COM 539830109 19,000 -854 -4.30 9 -99.91 1.6730
2025-05-06 2025-03-31 13F LOCKHEED MARTIN COM 539830109 19,854 72 0.36 8,869 -7.73 1.7084
2025-02-05 2024-12-31 13F LOCKHEED MARTIN COM 539830109 19,782 -34 -0.17 9,613 -17.02 1.8183
2024-11-08 2024-09-30 13F LOCKHEED MARTIN COM 539830109 19,816 -521 -2.56 11,584 21.94 2.1716
2024-07-31 2024-06-30 13F LOCKHEED MARTIN COM 539830109 20,337 -90 -0.44 9,499 2.24 1.8473
2024-05-07 2024-03-31 13F LOCKHEED MARTIN COM 539830109 20,427 -134 -0.65 9,292 -0.30 1.8247
2024-01-31 2023-12-31 13F LOCKHEED MARTIN COM 539830109 20,561 -603 -2.85 9,319 7.67 1.9550
2023-10-30 2023-09-30 13F/A-1 LOCKHEED MARTIN COM 539830109 21,164 452 2.18 8,656 -9.23 1.9311
2023-10-30 2023-09-30 13F LOCKHEED MARTIN COM 539830109 21,164 452 8,656 1.9311
2023-07-28 2023-06-30 13F LOCKHEED MARTIN COM 539830109 20,712 -905 -4.19 9,536 -6.69 2.0572
2023-04-19 2023-03-31 13F LOCKHEED MARTIN COM 539830109 21,617 -140 -0.64 10,219 -3.45 2.2102
2023-01-26 2022-12-31 13F LOCKHEED MARTIN COM 539830109 21,757 -329 -1.49 10,585 24.07 2.3286
2022-10-21 2022-09-30 13F LOCKHEED MARTIN COM 539830109 22,086 -12,774 -36.64 8,531 -43.08 2.0593
2022-07-20 2022-06-30 13F LOCKHEED MARTIN COM 539830109 34,860 -10 -0.03 14,988 -2.62 2.7998
2022-04-25 2022-03-31 13F LOCKHEED MARTIN COM 539830109 34,870 -574 -1.62 15,391 22.18 2.4877
2022-01-28 2021-12-31 13F LOCKHEED MARTIN COM 539830109 35,444 -1,280 -3.49 12,597 -0.60 1.9341
2021-10-21 2021-09-30 13F LOCKHEED MARTIN COM 539830109 36,724 1,337 3.78 12,673 -5.34 2.1452
2021-07-29 2021-06-30 13F LOCKHEED MARTIN COM 539830109 35,387 -637 -1.77 13,388 0.59 2.1988
2021-04-22 2021-03-31 13F LOCKHEED MARTIN COM 539830109 36,024 120 0.33 13,310 4.43 2.2740
2021-02-01 2020-12-31 13F LOCKHEED MARTIN COM 539830109 35,904 731 2.08 12,745 -5.46 2.3502
2020-10-23 2020-09-30 13F LOCKHEED MARTIN COM 539830109 35,173 -983 -2.72 13,481 2.18 2.7851
2020-07-27 2020-06-30 13F LOCKHEED MARTIN COM 539830109 36,156 5,431 17.68 13,194 26.69 2.9057
2020-04-23 2020-03-31 13F LOCKHEED MARTIN COM 539830109 30,725 14 0.05 10,414 -12.91 2.6699
2020-01-24 2019-12-31 13F LOCKHEED MARTIN COM 539830109 30,711 -99 -0.32 11,958 -0.49 2.3533
2019-10-25 2019-09-30 13F LOCKHEED MARTIN COM 539830109 30,810 -527 -1.68 12,017 5.49 2.5359
2019-07-26 2019-06-30 13F LOCKHEED MARTIN CORP COM COM 539830109 31,337 -243 -0.77 11,392 20.18 2.4089
2019-04-29 2019-03-31 13F LOCKHEED MARTIN CORP COM COM 539830109 31,580 1,056 3.46 9,479 18.61 2.0188
2019-01-28 2018-12-31 13F LOCKHEED MARTIN CORP COM COM 539830109 30,524 2,989 10.86 7,992 -16.10 1.9606
2018-10-26 2018-09-30 13F LOCKHEED MARTIN CORP COM COM 539830109 27,535 -265 -0.95 9,526 16.00 2.0265
2018-08-06 2018-06-30 13F LOCKHEED MARTIN CORP COM COM 539830109 27,800 -545 -1.92 8,212 -14.26 1.7610
2018-04-23 2018-03-31 13F LOCKHEED MARTIN CORP COM COM 539830109 28,345 -2,108 -6.92 9,578 -2.04 1.8898
2018-01-26 2017-12-31 13F LOCKHEED MARTIN CORP COM COM 539830109 30,453 -1,712 -5.32 9,777 -2.03 1.8834
2017-10-20 2017-09-30 13F LOCKHEED MARTIN CORP COM COM 539830109 32,165 -615 -1.88 9,980 9.67 1.9963
2017-07-28 2017-06-30 13F LOCKHEED MARTIN CORP COM COM 539830109 32,780 -55 -0.17 9,100 3.56 1.8468
2017-04-28 2017-03-31 13F LOCKHEED MARTIN CORP COM COM 539830109 32,835 -353 -1.06 8,787 5.93 1.7315
2017-01-31 2016-12-31 13F LOCKHEED MARTIN CORP COM COM 539830109 33,188 -360 -1.07 8,295 3.15 1.6830
2016-10-21 2016-09-30 13F LOCKHEED MARTIN CORP COM COM 539830109 33,548 -449 -1.32 8,042 -4.68 1.6213
2016-07-26 2016-06-30 13F LOCKHEED MARTIN CORP COM COM 539830109 33,997 -760 -2.19 8,437 9.59 1.7083
2016-04-13 2016-03-31 13F LOCKHEED MARTIN CORP COM COM 539830109 34,757 -215 -0.61 7,699 1.38 1.9168
2016-01-19 2015-12-31 13F LOCKHEED MARTIN CORP COM COM 539830109 34,972 -255 -0.72 7,594 3.98 1.8686
2015-10-22 2015-09-30 13F LOCKHEED MARTIN COM 539830109 35,227 -2,525 -6.69 7,303 4.06 1.6046
2015-07-23 2015-06-30 13F LOCKHEED MARTIN COM 539830109 37,752 -1,655 -4.20 7,018 -12.25 1.4178
2015-04-22 2015-03-31 13F LOCKHEED MARTIN COM 539830109 39,407 39,407 0.00 7,998 1.4660
2015-02-02 2014-12-31 13F LOCKHEED MARTIN COM 539830109 0 -40,647 -100.00 0 -100.00
2014-11-07 2014-09-30 13F LOCKHEED MARTIN COM 539830109 40,647 -580 -1.41 7,429 12.12 1.3954
2014-07-16 2014-06-30 13F LOCKHEED MARTIN COM 539830109 41,227 -230 -0.55 6,626 -2.08 1.3426
2014-04-22 2014-03-31 13F LOCKHEED MARTIN COM 539830109 41,457 -173 -0.42 6,767 9.34 1.4144
2014-01-30 2013-12-31 13F LOCKHEED MARTIN COM 539830109 41,630 -333 -0.79 6,189 15.64 1.3255
2013-10-30 2013-09-30 13F LOCKHEED MARTIN COM 539830109 41,963 -960 -2.24 5,352 14.97 1.2614
2013-07-18 2013-06-30 13F LOCKHEED MARTIN COM 539830109 42,923 42,923 4,655 1.1178
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.