Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionWest Branch Capital LLC
Latest Disclosed Ownership965 shares
Latest Disclosed Value $ 583,237
West Branch Capital LLC ownership in LMT / Lockheed Martin Corporation

On April 14, 2026 - West Branch Capital LLC filed a 13F-HR form disclosing ownership of 965 shares of Lockheed Martin Corporation (MX:LMT) valued at $583,237 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 965 shares of Lockheed Martin Corporation. This represents a change in shares of 0.00% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-14 2026-03-31 13F LOCKHEED MARTIN COM 539830109 965 0 0.00 583 25.11 0.1562
2026-01-16 2025-12-31 13F LOCKHEED MARTIN COM 539830109 965 -89 -8.44 467 -11.41 0.1203
2025-10-21 2025-09-30 13F LOCKHEED MARTIN COM 539830109 1,054 -26 -2.41 526 5.20 0.1381
2025-07-16 2025-06-30 13F LOCKHEED MARTIN COM 539830109 1,080 -187 -14.76 500 -11.66 0.1480
2025-04-16 2025-03-31 13F LOCKHEED MARTIN COM 539830109 1,267 -752 -37.25 566 -42.30 0.1888
2025-01-17 2024-12-31 13F LOCKHEED MARTIN COM 539830109 2,019 79 4.07 981 -13.42 0.3130
2024-10-18 2024-09-30 13F LOCKHEED MARTIN COM 539830109 1,940 2 0.10 1,134 25.19 0.3921
2024-07-26 2024-06-30 13F LOCKHEED MARTIN COM 539830109 1,938 -27 -1.37 905 1.34 0.3362
2024-04-24 2024-03-31 13F LOCKHEED MARTIN COM 539830109 1,965 -5 -0.25 894 0.11 0.3606
2024-01-19 2023-12-31 13F LOCKHEED MARTIN COM 539830109 1,970 31 1.60 893 12.48 0.4197
2023-10-20 2023-09-30 13F LOCKHEED MARTIN COM 539830109 1,939 -25 -1.27 793 -12.28 0.4162
2023-08-07 2023-06-30 13F LOCKHEED MARTIN COM 539830109 1,964 0 0.00 904 -2.59 0.4512
2023-04-20 2023-03-31 13F LOCKHEED MARTIN COM 539830109 1,964 -49 -2.43 928 -5.21 0.5172
2023-01-27 2022-12-31 13F LOCKHEED MARTIN COM 539830109 2,013 0 0.00 980 25.84 0.6051
2022-10-19 2022-09-30 13F LOCKHEED MARTIN COM 539830109 2,013 0 0.00 778 -10.06 0.4836
2022-07-28 2022-06-30 13F LOCKHEED MARTIN COM 539830109 2,013 50 2.55 865 -0.12 0.5003
2022-05-03 2022-03-31 13F LOCKHEED MARTIN COM 539830109 1,963 -49 -2.44 866 21.12 0.4138
2022-01-24 2021-12-31 13F LOCKHEED MARTIN COM 539830109 2,012 -153 -7.07 715 -4.28 0.3043
2021-11-09 2021-09-30 13F LOCKHEED MARTIN COM 539830109 2,165 -19 -0.87 747 -9.56 0.3594
2021-08-17 2021-06-30 13F LOCKHEED MARTIN COM 539830109 2,184 1 0.05 826 2.35 0.4059
2021-05-14 2021-03-31 13F LOCKHEED MARTIN COM 539830109 2,183 -181 -7.66 807 -3.81 0.4722
2021-02-08 2020-12-31 13F LOCKHEED MARTIN COM 539830109 2,364 -1,097 -31.70 839 -36.73 0.4958
2020-10-13 2020-09-30 13F LOCKHEED MARTIN COM 539830109 3,461 -674 -16.30 1,326 -12.13 0.8461
2020-07-08 2020-06-30 13F LOCKHEED MARTIN COM 539830109 4,135 -1,266 -23.44 1,509 -17.59 1.0631
2020-04-20 2020-03-31 13F LOCKHEED MARTIN COM 539830109 5,401 -533 -8.98 1,831 -20.77 1.7489
2020-01-07 2019-12-31 13F LOCKHEED MARTIN COM 539830109 5,934 -3,223 -35.20 2,311 -35.30 1.6095
2019-10-23 2019-09-30 13F Lockheed Martin COM 539830109 9,157 702 8.30 3,572 16.20 2.6457
2019-08-05 2019-06-30 13F Lockheed Martin COM 539830109 8,455 1,210 16.70 3,074 41.33 2.5363
2019-04-30 2019-03-31 13F LOCKHEED MARTIN COM 539830109 7,245 2,528 53.59 2,175 76.11 1.9468
2019-02-06 2018-12-31 13F LOCKHEED MARTIN COM 539830109 4,717 -4,084 -46.40 1,235 -59.44 1.3008
2018-10-15 2018-09-30 13F LOCKHEED MARTIN COM 539830109 8,801 180 2.09 3,045 19.55 2.2589
2018-08-02 2018-06-30 13F LOCKHEED MARTIN COM 539830109 8,621 212 2.52 2,547 -10.38 2.0075
2018-05-02 2018-03-31 13F LOCKHEED MARTIN COM 539830109 8,409 8,409 2,842 3.1199
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.