Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionChesapeake Asset Management Llc
Latest Disclosed Ownership1,022 shares
Latest Disclosed Value $ 617,686
Chesapeake Asset Management Llc reports 32.27% decrease in ownership of LMT / Lockheed Martin Corporation

On May 12, 2026 - Chesapeake Asset Management Llc filed a 13F-HR form disclosing ownership of 1,022 shares of Lockheed Martin Corporation (MX:LMT) valued at $617,686 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 1,509 shares of Lockheed Martin Corporation. This represents a change in shares of -32.27% 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)
2026-05-12 2026-03-31 13F LOCKHEED MARTIN CORP COM COM 539830109 1,022 -487 -32.27 618 -15.36 0.4901
2026-01-08 2025-12-31 13F LOCKHEED MARTIN COM 539830109 1,509 4 0.27 730 -2.93 0.6031
2025-10-17 2025-09-30 13F LOCKHEED MARTIN COM 539830109 1,505 -15 -0.99 751 6.83 0.6649
2025-10-15 2025-06-30 13F LOCKHEED MARTIN COM 539830109 1,520 -41 -2.63 704 0.86 0.6334
2026-01-05 2025-03-31 13F LOCKHEED MARTIN COM 539830109 1,561 -3,071 -66.30 697 -69.02 0.6562
2026-01-05 2024-12-31 13F LOCKHEED MARTIN COM 539830109 4,632 -1,723 -27.11 2,251 -39.42 2.0961
2026-01-05 2024-09-30 13F LOCKHEED MARTIN COM 539830109 6,355 -9 -0.14 3,715 24.97 3.2257
2026-01-05 2024-06-30 13F LOCKHEED MARTIN CORP COM COM 539830109 6,364 -164 -2.51 2,973 0.10 2.8409
2026-01-05 2024-03-31 13F LOCKHEED MARTIN COM 539830109 6,528 -573 -8.07 2,969 -7.74 2.9345
2026-01-05 2023-12-31 13F LOCKHEED MARTIN COM 539830109 7,101 97 1.38 3,218 12.36 2.8695
2026-01-05 2023-09-30 13F LOCKHEED MARTIN CORP COM COM 539830109 7,004 -1,695 -19.48 2,864 -28.47 2.7767
2026-01-05 2023-06-30 13F LOCKHEED MARTIN CORP COM COM 539830109 8,699 -843 -8.83 4,005 -11.22 3.6131
2026-01-05 2023-03-31 13F LOCKHEED MARTIN CORP COM COM 539830109 9,542 -543 -5.38 4,511 14.85 4.1258
2020-02-06 2019-12-31 13F LOCKHEED MARTIN COM 539830109 10,085 0 0.00 3,927 -0.18 6.6529
2019-10-30 2019-09-30 13F LOCKHEED MARTIN COM 539830109 10,085 -738 -6.82 3,934 -0.03 7.3957
2019-08-06 2019-06-30 13F LOCKHEED MARTIN COM 539830109 10,823 -100 -0.92 3,935 20.01 6.4906
2019-05-09 2019-03-31 13F LOCKHEED MARTIN COM 539830109 10,923 -1,772 -13.96 3,279 -1.35 5.5766
2019-02-06 2018-12-31 13F LOCKHEED MARTIN COM 539830109 12,695 -675 -5.05 3,324 -28.13 6.1262
2018-11-06 2018-09-30 13F LOCKHEED MARTIN COM 539830109 13,370 -2,590 -16.23 4,625 -1.91 5.3146
2018-08-08 2018-06-30 13F LOCKHEED MARTIN COM 539830109 15,960 -2,776 -14.82 4,715 -25.53 5.4922
2018-05-04 2018-03-31 13F LOCKHEED MARTIN COM 539830109 18,736 -363 -1.90 6,331 3.25 6.7864
2018-02-06 2017-12-31 13F LOCKHEED MARTIN COM 539830109 19,099 -2,567 -11.85 6,132 -8.79 5.9114
2017-11-06 2017-09-30 13F LOCKHEED MARTIN COM 539830109 21,666 0 0.00 6,723 11.77 6.0589
2017-08-04 2017-06-30 13F LOCKHEED MARTIN COM 539830109 21,666 -237 -1.08 6,015 2.63 5.7227
2017-05-10 2017-03-31 13F LOCKHEED MARTIN COM 539830109 21,903 -612 -2.72 5,861 4.16 4.8277
2017-02-06 2016-12-31 13F LOCKHEED MARTIN COM 539830109 22,515 0 0.00 5,627 4.26 4.8772
2016-11-08 2016-09-30 13F LOCKHEED MARTIN COM 539830109 22,515 0 0.00 5,397 -3.42 4.8857
2016-08-09 2016-06-30 13F LOCKHEED MARTIN COM 539830109 22,515 -2,040 -8.31 5,588 2.74 4.5455
2016-05-10 2016-03-31 13F LOCKHEED MARTIN COM 539830109 24,555 -50 -0.20 5,439 1.80 4.5158
2016-02-10 2015-12-31 13F LOCKHEED MARTIN COM 539830109 24,605 -338 -1.36 5,343 3.33 4.1039
2015-11-13 2015-09-30 13F LOCKHEED MARTIN COM 539830109 24,943 0 0.00 5,171 11.52 4.3926
2015-08-12 2015-06-30 13F LOCKHEED MARTIN COM 539830109 24,943 0 0.00 4,637 -8.40 3.4042
2015-05-12 2015-03-31 13F LOCKHEED MARTIN COM 539830109 24,943 -50 -0.20 5,062 5.17 3.7294
2015-02-17 2014-12-31 13F LOCKHEED MARTIN COM 539830109 24,993 -442 -1.74 4,813 3.53 3.0180
2014-11-14 2014-09-30 13F LOCKHEED MARTIN COM 539830109 25,435 0 0.00 4,649 13.72 2.8387
2014-08-14 2014-06-30 13F LOCKHEED MARTIN COM 539830109 25,435 0 0.00 4,088 -1.54 2.5406
2014-05-15 2014-03-31 13F LOCKHEED MARTIN COM 539830109 25,435 0 0.00 4,152 9.81 2.8093
2014-02-13 2013-12-31 13F LOCKHEED MARTIN COM 539830109 25,435 0 0.00 3,781 16.55 2.2376
2013-11-13 2013-09-30 13F LOCKHEED MARTIN COM 539830109 25,435 9,200 56.67 3,244 84.21 2.1742
2013-08-09 2013-06-30 13F LOCKHEED MARTIN COM 539830109 16,235 16,235 1,761 1.2720
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.