Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionRathbone Brothers plc
Latest Disclosed Ownership16,022 shares
Latest Disclosed Value $ 9,683,536
Rathbone Brothers plc reports 91.97% decrease in ownership of LMT / Lockheed Martin Corporation

On May 12, 2026 - Rathbone Brothers plc filed a 13F-HR form disclosing ownership of 16,022 shares of Lockheed Martin Corporation (MX:LMT) valued at $9,683,536 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 6, 2026 disclosing 199,489 shares of Lockheed Martin Corporation. This represents a change in shares of -91.97% 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 CO USD1 COM 539830109 16,022 -183,467 -91.97 9,684 -89.96 0.0414
2026-02-06 2025-12-31 13F/A-1 LOCKHEED MARTIN CO USD1 COM 539830109 199,489 -1,704 -0.85 96,487 -3.93 0.3820
2026-01-21 2025-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 199,489 -1,704 96,487 0.3820
2025-11-13 2025-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 201,193 -356 -0.18 100,438 7.60 0.4078
2025-08-07 2025-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 201,549 5,215 2.66 93,345 6.43 0.4026
2025-05-13 2025-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 196,334 50,654 34.77 87,704 23.89 0.4238
2025-02-13 2024-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 145,680 -6,372 -4.19 70,792 -20.35 0.3427
2024-11-13 2024-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 152,052 -9,444 -5.85 88,884 17.83 0.4485
2024-08-09 2024-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 161,496 -32 -0.02 75,435 2.67 0.4109
2024-05-14 2024-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 161,528 30,734 23.50 73,474 23.94 0.4240
2024-02-13 2023-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 130,794 12,610 10.67 59,281 22.65 0.3820
2023-11-13 2023-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 118,184 14,294 13.76 48,333 1.05 0.3505
2023-08-04 2023-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 103,890 12,504 13.68 47,829 10.71 0.4464
2023-05-12 2023-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 91,386 -1,779 -1.91 43,201 -4.68 0.4417
2023-02-14 2022-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 93,165 -2,210 -2.32 45,324 23.02 0.5103
2022-11-14 2022-09-30 13F/A-1 LOCKHEED MARTIN CO USD1 COM 539830109 95,375 -419 -0.44 36,842 -10.55 0.4546
2022-11-03 2022-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 95,375 -419 36,842 0.4546
2022-08-12 2022-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 95,794 -7,233 -7.02 41,188 -9.43 0.4721
2022-05-11 2022-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 103,027 -7,397 -6.70 45,476 15.87 0.4640
2022-02-10 2021-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 110,424 8,657 8.51 39,246 11.75 0.3814
2021-11-04 2021-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 101,767 12,432 13.92 35,120 3.91 0.3779
2021-07-30 2021-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 89,335 1,185 1.34 33,800 3.77 0.3755
2021-05-14 2021-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 88,150 5,448 6.59 32,571 10.94 0.4171
2021-02-11 2020-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 82,702 -1,355 -1.61 29,358 -8.87 0.4168
2020-11-13 2020-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 84,057 2,361 2.89 32,217 8.06 0.5513
2020-08-07 2020-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 81,696 11,491 16.37 29,813 25.29 0.6052
2020-05-04 2020-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 70,205 2,549 3.77 23,796 -9.67 0.6930
2020-02-11 2019-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 67,656 -2,502 -3.57 26,344 -3.73 0.6935
2019-11-13 2019-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 70,158 12,189 21.03 27,366 29.86 0.7772
2019-08-12 2019-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 57,969 -2,408 -3.99 21,074 16.28 0.6598
2019-05-09 2019-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 60,377 -73,067 -54.75 18,123 -48.13 0.5959
2019-02-12 2018-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 133,444 -22,281 -14.31 34,941 -35.14 1.3391
2018-10-12 2018-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 155,725 -57,049 -26.81 53,875 -14.29 1.8302
2018-07-16 2018-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 212,774 3,761 1.80 62,860 -11.00 2.3816
2018-04-06 2018-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 209,013 -23,510 -10.11 70,632 -5.38 2.8743
2018-01-24 2017-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 232,523 815 0.35 74,652 3.83 3.0384
2017-10-24 2017-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 231,708 621 0.27 71,897 12.07 3.1302
2017-08-10 2017-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 231,087 1,454 0.63 64,152 4.40 2.8584
2017-04-06 2017-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 229,633 -3,035 -1.30 61,450 5.67 2.8013
2017-02-02 2016-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 232,668 4,985 2.19 58,153 6.55 2.9145
2016-10-24 2016-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 227,683 1,592 0.70 54,580 -2.73 2.8192
2016-08-03 2016-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 226,091 -14,580 -6.06 56,109 5.25 3.0918
2016-04-08 2016-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 240,671 -20,747 -7.94 53,309 -5.77 3.2416
2016-01-19 2015-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 261,418 -66,721 -20.33 56,576 -16.83 3.5924
2015-10-27 2015-09-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 328,139 -992 -0.30 68,026 11.18 4.5337
2015-08-05 2015-06-30 13F LOCKHEED MARTIN CO USD1 COM 539830109 329,131 -714 -0.22 61,185 -8.60 3.9733
2015-04-10 2015-03-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 329,845 -505 -0.15 66,945 5.23 4.4293
2015-01-21 2014-12-31 13F LOCKHEED MARTIN CO USD1 COM 539830109 330,350 7,755 2.40 63,615 7.89 4.1829
2014-10-23 2014-09-30 13F LOCKHEED MARTIN CO US$1 COM 539830109 322,595 1,876 0.58 58,964 14.38 4.0954
2014-07-02 2014-06-30 13F LOCKHEED MARTIN CO US$1 COM 539830109 320,719 38,363 13.59 51,549 11.84 3.6425
2014-04-11 2014-03-31 13F/A-1 LOCKHEED MARTIN CO US$1 COM 539830109 282,356 27,361 10.73 46,092 21.59 3.6977
2014-04-10 2014-03-31 13F SCHLUMBERGER LTD US$0.01 COM 539830109 100,615 9,810
2014-01-10 2013-12-31 13F LOCKHEED MARTIN CO US$1 COM 539830109 254,995 9,866 4.02 37,908 21.24 3.7820
2013-10-11 2013-09-30 13F LOCKHEED MARTIN CO US$1 COM 539830109 245,129 19,879 8.83 31,266 27.98 3.6425
2013-08-06 2013-06-30 13F LOCKHEED MARTIN CO US$1 COM 539830109 225,250 225,250 24,431 3.2903
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.