Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionRosenberg Matthew Hamilton
Latest Disclosed Ownership810 shares
Latest Disclosed Value $ 489,556
Rosenberg Matthew Hamilton reports 0.12% decrease in ownership of LMT / Lockheed Martin Corporation

On April 6, 2026 - Rosenberg Matthew Hamilton filed a 13F-HR form disclosing ownership of 810 shares of Lockheed Martin Corporation (MX:LMT) valued at $489,556 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 811 shares of Lockheed Martin Corporation. This represents a change in shares of -0.12% 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)
2026-04-06 2026-03-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 810 -1 -0.12 490 24.74 0.1003
2026-01-05 2025-12-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 811 -42 -4.92 392 -7.76 0.0812
2025-11-10 2025-09-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 853 48 5.96 426 14.25 0.0920
2025-07-28 2025-06-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 805 -112 -12.21 373 -9.05 0.0867
2025-04-28 2025-03-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 917 36 4.09 410 -4.44 0.1027
2025-01-14 2024-12-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 881 -5 -0.56 428 -17.21 0.1112
2024-10-28 2024-09-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 886 11 1.26 518 26.72 0.1355
2024-07-26 2024-06-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 875 72 8.97 408 12.40 0.1205
2024-04-22 2024-03-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 803 -41 -4.86 364 -4.97 0.1051
2024-01-16 2023-12-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 844 14 1.69 383 12.68 0.1177
2023-10-11 2023-09-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 830 -71 -7.88 339 -18.12 0.1131
2023-07-26 2023-06-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 901 -20 -2.17 415 -4.83 0.1402
2023-04-17 2023-03-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 921 0 0.00 435 -2.90 0.1405
2023-01-19 2022-12-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 921 3 0.33 448 26.20 0.1518
2022-10-21 2022-09-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 918 65 7.62 355 -4.05 0.1373
2022-07-15 2022-06-30 13F LOCKHEED MARTIN CORP COM Stock 539830109 853 40 4.92 370 42.86 0.1395
2022-04-14 2022-03-31 13F LOCKHEED MARTIN CORP COM Stock 539830109 813 15 1.88 259 -8.80 0.0906
2022-01-20 2021-12-31 13F LOCKHEED MARTIN COM 539830109 798 198 33.00 284 37.20 0.1011
2021-10-12 2021-09-30 13F LOCKHEED MARTIN COM 539830109 600 -121 -16.78 207 -24.18 0.0818
2021-07-26 2021-06-30 13F LOCKHEED MARTIN COM 539830109 721 0 0.00 273 2.63 0.1421
2021-04-30 2021-03-31 13F LOCKHEED MARTIN COM 539830109 721 11 1.55 266 5.56 0.1518
2021-02-03 2020-12-31 13F LOCKHEED MARTIN COM 539830109 710 -123 -14.77 252 -21.00 0.1572
2020-10-16 2020-09-30 13F LOCKHEED MARTIN COM 539830109 833 0 0.00 319 4.93 0.2343
2020-08-04 2020-06-30 13F LOCKHEED MARTIN COM 539830109 833 269 47.70 304 58.33 0.2421
2020-05-14 2020-03-31 13F LOCKHEED MARTIN COM 539830109 564 564 192 0.1910
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.