Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionMark Sheptoff Financial Planning, Llc
Latest Disclosed Ownership1,619 shares
Latest Disclosed Value $ 823,958
Mark Sheptoff Financial Planning, Llc reports 3.57% decrease in ownership of LMT / Lockheed Martin Corporation

On May 11, 2026 - Mark Sheptoff Financial Planning, Llc filed a 13F-HR form disclosing ownership of 1,619 shares of Lockheed Martin Corporation (MX:LMT) valued at $823,958 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,679 shares of Lockheed Martin Corporation. This represents a change in shares of -3.57% 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)
2026-05-11 2026-03-31 13F LOCKHEED MARTIN COM 539830109 1,619 -60 -3.57 824 1.35 0.4362
2026-02-12 2025-12-31 13F LOCKHEED MARTIN COM 539830109 1,679 10 0.60 812 -2.52 0.3870
2025-11-13 2025-09-30 13F LOCKHEED MARTIN OM 539830109 1,669 -880 -34.52 833 -29.41 0.3988
2025-08-06 2025-06-30 13F LOCKHEED MARTIN COM 539830109 2,549 0 0.00 1,181 3.69 0.6292
2025-05-13 2025-03-31 13F LOCKHEED MARTIN COM 539830109 2,549 0 0.00 1,139 -8.08 0.6277
2025-02-12 2024-12-31 13F LOCKHEED MARTIN COM 539830109 2,549 -451 -15.03 1,239 -29.38 0.6646
2024-11-14 2024-09-30 13F LOCKHEED MARTIN COM 539830109 3,000 481 19.09 1,754 49.06 0.9318
2024-08-12 2024-06-30 13F LOCKHEED MARTIN COM 539830109 2,519 -200 -7.36 1,177 -4.85 0.6577
2024-05-10 2024-03-31 13F LOCKHEED MARTIN COM 539830109 2,719 -1 -0.04 1,237 0.32 0.6858
2024-02-09 2023-12-31 13F LOCKHEED MARTIN COM 539830109 2,720 0 0.00 1,233 10.79 0.7428
2023-11-13 2023-09-30 13F LOCKHEED MARTIN COM 539830109 2,720 0 0.00 1,112 -11.18 0.7140
2023-08-10 2023-06-30 13F LOCKHEED MARTIN COM 539830109 2,720 0 0.00 1,252 -2.57 0.7145
2023-05-11 2023-03-31 13F LOCKHEED MARTIN COM 539830109 2,720 1 0.04 1,286 -2.80 0.7465
2023-02-14 2022-12-31 13F LOCKHEED MARTIN COM 539830109 2,719 0 0.00 1,323 25.90 0.7757
2022-11-09 2022-09-30 13F LOCKHEED MARTIN COM 539830109 2,719 0 0.00 1,050 -10.18 0.6393
2022-08-11 2022-06-30 13F LOCKHEED MARTIN COM 539830109 2,719 0 0.00 1,169 -2.58 0.6719
2022-05-12 2022-03-31 13F LOCKHEED MARTIN COM 539830109 2,719 -100 -3.55 1,200 19.76 0.6039
2022-02-11 2021-12-31 13F LOCKHEED MARTIN COM 539830109 2,819 400 16.54 1,002 20.00 0.4783
2021-11-10 2021-09-30 13F LOCKHEED MARTIN COM 539830109 2,419 0 0.00 835 -8.74 0.4596
2021-08-12 2021-06-30 13F LOCKHEED MARTIN COM 539830109 2,419 -150 -5.84 915 -3.58 0.4904
2021-05-11 2021-03-31 13F LOCKHEED MARTIN COM 539830109 2,569 -1,371 -34.80 949 -32.17 0.5447
2021-02-11 2020-12-31 13F LOCKHEED MARTIN COM 539830109 3,940 55 1.42 1,399 -6.04 0.7960
2020-11-12 2020-09-30 13F LOCKHEED MARTIN COM 539830109 3,885 295 8.22 1,489 13.66 0.9163
2020-08-10 2020-06-30 13F LOCKHEED MARTIN COM 539830109 3,590 -267 -6.92 1,310 0.23 0.8497
2020-05-07 2020-03-31 13F LOCKHEED MARTIN COM 539830109 3,857 0 0.00 1,307 -12.98 0.9880
2020-02-10 2019-12-31 13F LOCKHEED MARTIN COM 539830109 3,857 0 0.00 1,502 -0.13 0.9457
2019-11-12 2019-09-30 13F LOCKHEED MARTIN COM 539830109 3,857 55 1.45 1,504 8.83 1.0141
2019-08-12 2019-06-30 13F LOCKHEED MARTIN COM 539830109 3,802 -50 -1.30 1,382 19.55 0.9435
2019-05-10 2019-03-31 13F LOCKHEED MARTIN COM 539830109 3,852 16 0.42 1,156 15.14 0.8330
2019-02-11 2018-12-31 13F LOCKHEED MARTIN COM 539830109 3,836 -200 -4.96 1,004 -28.08 0.8341
2018-11-13 2018-09-30 13F LOCKHEED MARTIN COM 539830109 4,036 650 19.20 1,396 39.60 0.9575
2018-08-09 2018-06-30 13F LOCKHEED MARTIN COM 539830109 3,386 0 0.00 1,000 -12.59 0.7396
2018-05-08 2018-03-31 13F LOCKHEED MARTIN COM 539830109 3,386 -100 -2.87 1,144 2.23 0.7937
2018-02-09 2017-12-31 13F LOCKHEED MARTIN COM 539830109 3,486 0 0.00 1,119 3.42 0.7278
2017-11-09 2017-09-30 13F LOCKHEED MARTIN COM 539830109 3,486 0 0.00 1,082 11.78 0.7264
2017-08-08 2017-06-30 13F LOCKHEED MARTIN COM 539830109 3,486 -1 -0.03 968 3.75 0.6648
2017-05-08 2017-03-31 13F LOCKHEED MARTIN COM 539830109 3,487 1 0.03 933 7.12 0.6653
2017-02-07 2016-12-31 13F LOCKHEED MARTIN COM 539830109 3,486 1,000 40.23 871 46.14 0.6464
2016-11-07 2016-09-30 13F LOCKHEED MARTIN COM 539830109 2,486 50 2.05 596 -1.49 0.4431
2016-08-09 2016-06-30 13F LOCKHEED MARTIN COM 539830109 2,436 19 0.79 605 13.08 0.4522
2016-05-09 2016-03-31 13F LOCKHEED MARTIN COM 539830109 2,417 -200 -7.64 535 -5.81 0.4349
2016-02-09 2015-12-31 13F LOCKHEED MARTIN COM 539830109 2,617 100 3.97 568 8.81 0.4603
2015-11-12 2015-09-30 13F LOCKHEED MARTIN COM 539830109 2,517 17 0.68 522 12.26 0.4577
2015-08-05 2015-06-30 13F LOCKHEED MARTIN COM 539830109 2,500 0 0.00 465 -8.28 0.3759
2015-05-12 2015-03-31 13F LOCKHEED MARTIN COM 539830109 2,500 0 0.00 507 5.41 0.4229
2015-02-09 2014-12-31 13F LOCKHEED MARTIN COM 539830109 2,500 0 0.00 481 5.25 0.4254
2014-11-12 2014-09-30 13F LOCKHEED MARTIN COM 539830109 2,500 0 0.00 457 13.68 0.4039
2014-08-13 2014-06-30 13F LOCKHEED MARTIN COM 539830109 2,500 0 0.00 402 -1.47 0.3436
2014-05-09 2014-03-31 13F LOCKHEED MARTIN COM 539830109 2,500 2,500 408 0.3612
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.