Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership451,276 shares
Latest Disclosed Value $ 272,745,554
Janus Henderson Group Plc reports 3,497.54% increase in ownership of LMT / Lockheed Martin Corporation

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 451,276 shares of Lockheed Martin Corporation (MX:LMT) valued at $272,745,554 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,544 shares of Lockheed Martin Corporation. This represents a change in shares of 3,497.54% 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)
2026-05-18 2026-03-31 13F/A-1 LOCKHEED MARTIN COM 539830109 451,276 438,732 3,497.54 272,746 4,394.81 0.0460
2026-05-15 2026-03-31 13F LOCKHEED MARTIN COM 539830109 451,276 438,732 272,746 0.0506
2026-02-17 2025-12-31 13F LOCKHEED MARTIN COM 539830109 12,544 414 3.41 6,069 0.23 0.0027
2025-11-14 2025-09-30 13F LOCKHEED MARTIN COM 539830109 12,130 -5,690 -31.93 6,054 -26.63 0.0028
2025-08-14 2025-06-30 13F LOCKHEED MARTIN COM 539830109 17,820 7,499 72.66 8,251 81.10 0.0040
2025-05-15 2025-03-31 13F LOCKHEED MARTIN COM 539830109 10,321 -18,300 -63.94 4,556 -67.24 0.0025
2025-02-14 2024-12-31 13F LOCKHEED MARTIN COM 539830109 28,621 12,924 82.33 13,908 51.61 0.0071
2024-11-14 2024-09-30 13F LOCKHEED MARTIN COM 539830109 15,697 -200 -1.26 9,173 23.53 0.0047
2024-08-14 2024-06-30 13F LOCKHEED MARTIN COM 539830109 15,897 -9,959 -38.52 7,427 -36.83 0.0040
2024-05-15 2024-03-31 13F LOCKHEED MARTIN COM 539830109 25,856 -12,796 -33.11 11,757 -32.90 0.0064
2024-02-14 2023-12-31 13F LOCKHEED MARTIN COM 539830109 38,652 7,246 23.07 17,520 36.36 0.0104
2023-11-14 2023-09-30 13F LOCKHEED MARTIN COM 539830109 31,406 10,793 52.36 12,849 35.38 0.0084
2023-08-14 2023-06-30 13F LOCKHEED MARTIN COM 539830109 20,613 -1,192 -5.47 9,490 -7.86 0.0059
2023-05-15 2023-03-31 13F LOCKHEED MARTIN COM 539830109 21,805 -8,273 -27.51 10,299 -29.62 0.0068
2023-02-14 2022-12-31 13F LOCKHEED MARTIN COM 539830109 30,078 14,227 89.75 14,634 138.73 0.0105
2023-01-13 2022-09-30 13F/A-1 LOCKHEED MARTIN COM 539830109 15,851 -6,359 -28.63 6,130 -35.83 0.0046
2022-11-14 2022-09-30 13F LOCKHEED MARTIN COM 539830109 15,851 -6,359 6,130 0.0046
2022-08-15 2022-06-30 13F LOCKHEED MARTIN COM 539830109 22,210 -13,433 -37.69 9,553 -39.28 0.0066
2022-05-16 2022-03-31 13F LOCKHEED MARTIN COM 539830109 35,643 -11,415 -24.26 15,732 -5.94 0.0076
2022-02-14 2021-12-31 13F LOCKHEED MARTIN COM 539830109 47,058 -387,169 -89.16 16,725 -88.84 0.0070
2021-11-16 2021-09-30 13F LOCKHEED MARTIN COM 539830109 434,227 -64,582 -12.95 149,850 -20.60 0.0655
2021-08-16 2021-06-30 13F LOCKHEED MARTIN COM 539830109 498,809 40,626 8.87 188,724 11.47 0.0808
2021-05-17 2021-03-31 13F LOCKHEED MARTIN COM 539830109 458,183 33,936 8.00 169,298 12.42 0.0773
2021-02-16 2020-12-31 13F LOCKHEED MARTIN COM 539830109 424,247 93,877 28.42 150,597 18.93 0.0700
2020-11-16 2020-09-30 13F LOCKHEED MARTIN COM 539830109 330,370 -93,038 -21.97 126,624 -18.05 0.0660
2020-08-14 2020-06-30 13F LOCKHEED MARTIN COM 539830109 423,408 -72,553 -14.63 154,509 -8.09 0.0867
2020-05-14 2020-03-31 13F LOCKHEED MARTIN COM 539830109 495,961 -55,716 -10.10 168,111 -21.74 0.1157
2020-02-18 2019-12-31 13F LOCKHEED MARTIN COM 539830109 551,677 -9,179 -1.64 214,810 -1.81 0.1100
2019-11-14 2019-09-30 13F LOCKHEED MARTIN COM 539830109 560,856 1,082 0.19 218,762 7.50 0.1185
2019-07-31 2019-06-30 13F LOCKHEED MARTIN COM 539830109 559,774 -127,927 -18.60 203,495 -1.42 0.1108
2019-04-30 2019-03-31 13F LOCKHEED MARTIN COM 539830109 687,701 -137,069 -16.62 206,421 -4.42 0.1144
2019-02-06 2018-12-31 13F LOCKHEED MARTIN COM 539830109 824,770 -241,633 -22.66 215,960 -41.46 0.1377
2018-11-09 2018-09-30 13F LOCKHEED MARTIN COM 539830109 1,066,403 -153,657 -12.59 368,932 2.35 0.1971
2018-08-10 2018-06-30 13F LOCKHEED MARTIN COM 539830109 1,220,060 196,432 19.19 360,453 4.20 0.2055
2018-05-14 2018-03-31 13F LOCKHEED MARTIN COM 539830109 1,023,628 -20,994 -2.01 345,916 3.14 0.2038
2018-03-12 2017-12-31 13F/A-1 LOCKHEED MARTIN COM 539830109 1,044,622 206,229 24.60 335,383 28.92 0.2065
2018-02-09 2017-12-31 13F LOCKHEED MARTIN COM 539830109 1,044,622 206,229 335,383
2017-11-14 2017-09-30 13F LOCKHEED MARTIN COM 539830109 838,393 -91,150 -9.81 260,144 0.81 0.1667
2017-08-17 2017-06-30 13F/A-1 LOCKHEED MARTIN COM 539830109 929,543 846,553 1,020.07 258,056 1,061.73 0.1759
2017-08-14 2017-06-30 13F LOCKHEED MARTIN COM 539830109 929,543 846,553 258,056
2017-05-03 2017-03-31 13F LOCKHEED MARTIN COM 539830109 82,990 -1,867 -2.20 22,213 4.65 0.1559
2017-01-30 2016-12-31 13F LOCKHEED MARTIN COM 539830109 84,857 -133,655 -61.17 21,227 -59.48 0.1566
2016-10-24 2016-09-30 13F LOCKHEED MARTIN COM 539830109 218,512 -15,339 -6.56 52,388 -9.78 0.3861
2016-07-29 2016-06-30 13F LOCKHEED MARTIN COM 539830109 233,851 -83,900 -26.40 58,064 -17.51 0.4828
2016-05-12 2016-03-31 13F LOCKHEED MARTIN COM 539830109 317,751 1,046 0.33 70,385 2.35 0.5709
2016-02-03 2015-12-31 13F LOCKHEED MARTIN COM 539830109 316,705 -960 -0.30 68,772 4.41 0.5518
2015-11-16 2015-09-30 13F LOCKHEED MARTIN COM 539830109 317,665 0 0.00 65,865 11.56 0.5802
2015-08-17 2015-06-30 13F LOCKHEED MARTIN COM 539830109 317,665 -59,050 -15.67 59,041 -22.81 0.4640
2015-06-02 2015-03-31 13F/A-1 LOCKHEED MARTIN COM 539830109 376,715 56,295 17.57 76,490 23.95 0.5901
2015-05-15 2015-03-31 13F LOCKHEED MARTIN COM 539830109 376,715 76,490
2015-02-12 2014-12-31 13F LOCKHEED MARTIN COM 539830109 320,420 275 0.09 61,711 5.43 0.4450
2014-11-12 2014-09-30 13F LOCKHEED MARTIN COM 539830109 320,145 -1,762 -0.55 58,532 13.16 0.5506
2014-08-13 2014-06-30 13F LOCKHEED MARTIN COM 539830109 321,907 182,973 131.70 51,726 128.08 0.4830
2014-05-08 2014-03-31 13F LOCKHEED MARTIN COM 539830109 138,934 8,218 6.29 22,679 16.72 0.2208
2014-01-14 2013-12-31 13F LOCKHEED MARTIN COM 539830109 130,716 -97,568 -42.74 19,430 -33.29 0.1963
2013-11-12 2013-09-30 13F LOCKHEED MARTIN COM 539830109 228,284 29,553 14.87 29,126 35.65 0.3213
2013-08-15 2013-06-30 13F LOCKHEED MARTIN COM 539830109 198,731 198,731 21,472 0.2510
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.