Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionAdvisor OS, LLC
Latest Disclosed Ownership1,600 shares
Latest Disclosed Value $ 967,542
Advisor OS, LLC reports 4.93% decrease in ownership of LMT / Lockheed Martin Corporation

On May 7, 2026 - Advisor OS, LLC filed a 13F-HR form disclosing ownership of 1,600 shares of Lockheed Martin Corporation (MX:LMT) valued at $967,542 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 1,683 shares of Lockheed Martin Corporation. This represents a change in shares of -4.93% 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)
2026-05-07 2026-03-31 13F LOCKHEED MARTIN COM 539830109 1,600 -83 -4.93 968 18.80 0.0272
2026-02-04 2025-12-31 13F LOCKHEED MARTIN COM 539830109 1,683 492 41.31 814 37.04 0.0240
2025-11-12 2025-09-30 13F LOCKHEED MARTIN COM 539830109 1,191 -2,134 -64.18 595 -61.43 0.0513
2025-08-14 2025-06-30 13F LOCKHEED MARTIN COM 539830109 3,325 374 12.67 1,540 16.84 0.1516
2025-05-06 2025-03-31 13F LOCKHEED MARTIN COM 539830109 2,951 38 1.30 1,318 -6.86 0.1500
2025-02-05 2024-12-31 13F LOCKHEED MARTIN COM 539830109 2,913 396 15.73 1,416 -3.81 0.1640
2024-11-04 2024-09-30 13F LOCKHEED MARTIN COM 539830109 2,517 28 1.12 1,471 26.59 0.1465
2024-08-05 2024-06-30 13F LOCKHEED MARTIN COM 539830109 2,489 379 17.96 1,163 21.17 0.1273
2024-05-09 2024-03-31 13F LOCKHEED MARTIN COM 539830109 2,110 860 68.80 960 69.43 0.1103
2024-02-08 2023-12-31 13F LOCKHEED MARTIN COM 539830109 1,250 296 31.03 566 45.13 0.0737
2023-11-03 2023-09-30 13F LOCKHEED MARTIN COM 539830109 954 -1,707 -64.15 390 -68.14 0.0585
2023-08-08 2023-06-30 13F LOCKHEED MARTIN COM 539830109 2,661 -1,379 -34.13 1,225 -35.88 0.2004
2023-04-25 2023-03-31 13F LOCKHEED MARTIN COM 539830109 4,040 -64 -1.56 1,910 -4.36 0.4584
2023-02-01 2022-12-31 13F LOCKHEED MARTIN COM 539830109 4,104 980 31.37 1,997 65.23 0.5303
2022-11-04 2022-09-30 13F LOCKHEED MARTIN COM 539830109 3,124 79 2.59 1,208 -7.79 0.3642
2022-08-02 2022-06-30 13F LOCKHEED MARTIN COM 539830109 3,045 1,103 56.80 1,310 52.68 0.3822
2022-05-11 2022-03-31 13F LOCKHEED MARTIN COM 539830109 1,942 401 26.02 858 57.14 0.2484
2022-02-04 2021-12-31 13F LOCKHEED MARTIN COM 539830109 1,541 174 12.73 546 15.92 0.1114
2021-11-15 2021-09-30 13F LOCKHEED MARTIN COM 539830109 1,367 191 16.24 471 5.61 0.1024
2021-08-10 2021-06-30 13F LOCKHEED MARTIN COM 539830109 1,176 552 88.46 446 93.91 0.0926
2021-05-13 2021-03-31 13F LOCKHEED MARTIN COM 539830109 624 -176 -22.00 230 -19.01 0.0521
2021-02-10 2020-12-31 13F LOCKHEED MARTIN COM 539830109 800 -72 -8.26 284 -14.97 0.0762
2020-11-12 2020-09-30 13F LOCKHEED MARTIN COM 539830109 872 -252 -22.42 334 -18.54 0.1402
2020-08-28 2020-06-30 13F LOCKHEED MARTIN COM 539830109 1,124 1,124 410 0.2445
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.