Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionJoel Isaacson & Co., LLC
Latest Disclosed Ownership5,307 shares
Latest Disclosed Value $ 3,207,498
Joel Isaacson & Co., LLC reports 3.41% increase in ownership of LMT / Lockheed Martin Corporation

On April 22, 2026 - Joel Isaacson & Co., LLC filed a 13F-HR form disclosing ownership of 5,307 shares of Lockheed Martin Corporation (MX:LMT) valued at $3,207,498 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 5,132 shares of Lockheed Martin Corporation. This represents a change in shares of 3.41% 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)
2026-04-22 2026-03-31 13F LOCKHEED MARTIN COM 539830109 5,307 175 3.41 3,207 29.21 0.1063
2026-01-30 2025-12-31 13F LOCKHEED MARTIN COM 539830109 5,132 -20 -0.39 2,482 -3.46 0.0820
2025-10-30 2025-09-30 13F LOCKHEED MARTIN COM 539830109 5,152 4,000 347.22 2,572 382.36 0.0928
2025-07-23 2025-06-30 13F LOCKHEED MARTIN COM 539830109 1,152 3 0.26 534 3.90 0.0217
2025-04-25 2025-03-31 13F LOCKHEED MARTIN COM 539830109 1,149 180 18.58 513 9.15 0.0233
2025-01-28 2024-12-31 13F LOCKHEED MARTIN COM 539830109 969 16 1.68 471 -15.62 0.0212
2024-10-23 2024-09-30 13F LOCKHEED MARTIN COM 539830109 953 -55 -5.46 557 18.51 0.0266
2024-07-24 2024-06-30 13F LOCKHEED MARTIN COM 539830109 1,008 -117 -10.40 471 -8.02 0.0247
2024-04-30 2024-03-31 13F LOCKHEED MARTIN COM 539830109 1,125 55 5.14 512 5.58 0.0281
2024-02-12 2023-12-31 13F/A-1 LOCKHEED MARTIN COM 539830109 1,070 0 0.00 485 10.76 0.0298
2024-01-25 2023-12-31 13F LOCKHEED MARTIN COM 539830109 1,070 0 485 0.0298
2023-10-24 2023-09-30 13F LOCKHEED MARTIN COM 539830109 1,070 150 16.30 438 3.31 0.0299
2023-07-27 2023-06-30 13F LOCKHEED MARTIN COM 539830109 920 117 14.57 424 11.61 0.0284
2023-04-25 2023-03-31 13F LOCKHEED MARTIN COM 539830109 803 -60 -6.95 380 -9.55 0.0273
2023-01-27 2022-12-31 13F LOCKHEED MARTIN COM 539830109 863 60 7.47 420 35.16 0.0323
2022-10-14 2022-09-30 13F LOCKHEED MARTIN COM 539830109 803 16 2.03 310 -8.28 0.0268
2022-07-15 2022-06-30 13F LOCKHEED MARTIN COM 539830109 787 4 0.51 338 -7.65 0.0284
2022-04-21 2022-03-31 13F LOCKHEED MARTIN COM 539830109 783 0 0.00 366 31.65 0.0269
2022-01-19 2021-12-31 13F LOCKHEED MARTIN COM 539830109 783 -106 -11.92 278 -9.45 0.0191
2021-10-21 2021-09-30 13F LOCKHEED MARTIN COM 539830109 889 -131 -12.84 307 -20.47 0.0232
2021-07-20 2021-06-30 13F LOCKHEED MARTIN COM 539830109 1,020 -26 -2.49 386 -0.26 0.0300
2021-04-23 2021-03-31 13F LOCKHEED MARTIN COM 539830109 1,046 0 0.00 387 4.31 0.0339
2021-01-22 2020-12-31 13F LOCKHEED MARTIN COM 539830109 1,046 -8 -0.76 371 -8.17 0.0363
2020-10-14 2020-09-30 13F LOCKHEED MARTIN COM 539830109 1,054 8 0.76 404 5.76 0.0525
2020-07-21 2020-06-30 13F LOCKHEED MARTIN COM 539830109 1,046 34 3.36 382 11.37 0.0544
2020-04-21 2020-03-31 13F LOCKHEED MARTIN COM 539830109 1,012 1 0.10 343 -12.94 0.0597
2020-01-24 2019-12-31 13F LOCKHEED MARTIN COM 539830109 1,011 1 0.10 394 0.00 0.0517
2019-10-15 2019-09-30 13F LOCKHEED MARTIN COM 539830109 1,010 -105 -9.42 394 -2.72 0.0561
2019-07-11 2019-06-30 13F LOCKHEED MARTIN COM 539830109 1,115 -41 -3.55 405 16.71 0.0589
2019-04-09 2019-03-31 13F LOCKHEED MARTIN COM 539830109 1,156 5 0.43 347 8.44 0.0506
2019-01-18 2018-12-31 13F LOCKHEED MARTIN COM 539830109 1,151 55 5.02 320 -15.57 0.0507
2018-10-19 2018-09-30 13F LOCKHEED MARTIN COM 539830109 1,096 0 0.00 379 16.98 0.0596
2018-08-01 2018-06-30 13F LOCKHEED MARTIN COM 539830109 1,096 349 46.72 324 28.57 0.0543
2018-05-01 2018-03-31 13F LOCKHEED MARTIN COM 539830109 747 0 0.00 252 5.00 0.0440
2018-01-30 2017-12-31 13F LOCKHEED MARTIN COM 539830109 747 0 0.00 240 3.45 0.0416
2017-11-02 2017-09-30 13F LOCKHEED MARTIN COM 539830109 747 1 0.13 232 12.08 0.0424
2017-08-01 2017-06-30 13F LOCKHEED MARTIN COM 539830109 746 746 207 0.0391
2017-05-05 2017-03-31 13F LOCKHEED MARTIN COM 539830109 0 -743 -100.00 0 -100.00
2017-01-23 2016-12-31 13F LOCKHEED MARTIN COM 539830109 743 0 0.00 186 4.49 0.0374
2016-10-25 2016-09-30 13F LOCKHEED MARTIN COM 539830109 743 -755 -50.40 178 -52.15 0.0366
2016-07-22 2016-06-30 13F LOCKHEED MARTIN COM 539830109 1,498 -106 -6.61 372 4.79 0.0792
2016-04-18 2016-03-31 13F LOCKHEED MARTIN COM 539830109 1,604 -44 -2.67 355 -0.84 0.0784
2016-01-15 2015-12-31 13F LOCKHEED MARTIN COM 539830109 1,648 -121 -6.84 358 -2.45 0.0879
2015-10-21 2015-09-30 13F LOCKHEED MARTIN COM 539830109 1,769 -264 -12.99 367 -2.91 0.0980
2015-07-27 2015-06-30 13F LOCKHEED MARTIN COM 539830109 2,033 188 10.19 378 1.07 0.0969
2015-04-14 2015-03-31 13F LOCKHEED MARTIN COM 539830109 1,845 1,066 136.84 374 149.33 0.0943
2015-01-09 2014-12-31 13F LOCKHEED MARTIN COM 539830109 779 -24 -2.99 150 2.04 0.0403
2014-10-22 2014-09-30 13F LOCKHEED MARTIN COM 539830109 803 1 0.12 147 13.95 0.0449
2014-07-21 2014-06-30 13F LOCKHEED MARTIN COM 539830109 802 1 0.12 129 -1.53 0.0404
2014-04-14 2014-03-31 13F/A-1 LOCKHEED MARTIN COM 539830109 801 1 0.12 131 10.08 0.0440
2014-04-11 2014-03-31 13F LOCKHEED MARTIN COM 539830109 450 22
2014-02-12 2013-12-31 13F LOCKHEED MARTIN COM 539830109 800 -48 -5.66 119 10.19 0.0432
2014-02-26 2013-09-30 13F LOCKHEED MARTIN COM 539830109 848 648 324.00 108 390.91 0.0441
2014-03-03 2013-06-30 13F LOCKHEED MARTIN COM 539830109 200 0 0.00 22 15.79 0.0103
2014-03-03 2013-03-31 13F LOCKHEED MARTIN COM 539830109 200 0 0.00 19 5.56 0.0096
2014-03-07 2012-12-31 13F LOCKHEED MARTIN COM 539830109 200 200 18 0.0117
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.