Lockheed Martin Corporation
US ˙ NYSE ˙ US5398301094

SecurityLMT / Lockheed Martin Corporation
InstitutionFirst Manhattan Co
Latest Disclosed Ownership3,451 shares
Latest Disclosed Value $ 2,085,750
First Manhattan Co reports 2.16% increase in ownership of LMT / Lockheed Martin Corporation

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 3,451 shares of Lockheed Martin Corporation (US:LMT) valued at $2,085,750 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,378 shares of Lockheed Martin Corporation. This represents a change in shares of 2.16% during the quarter. The current value of the position is $1,767,016 USD.

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)
2026-05-15 2026-03-31 13F LOCKHEED MARTIN COM 539830109 3,451 73 2.16 2,086 27.68 0.0058
2026-02-17 2025-12-31 13F LOCKHEED MARTIN COM 539830109 3,378 -675 -16.65 1,634 -19.28 0.0043
2025-11-14 2025-09-30 13F LOCKHEED MARTIN COM 539830109 4,053 -34 -0.83 2,023 6.92 0.0053
2025-08-14 2025-06-30 13F LOCKHEED MARTIN COM 539830109 4,087 -16 -0.39 1,893 3.28 0.0053
2025-05-15 2025-03-31 13F LOCKHEED MARTIN COM 539830109 4,103 -673 -14.09 1,833 -21.03 0.0053
2025-02-14 2024-12-31 13F LOCKHEED MARTIN COM 539830109 4,776 -15 -0.31 2,321 -17.14 0.0068
2024-11-14 2024-09-30 13F LOCKHEED MARTIN COM 539830109 4,791 -5 -0.10 2,801 25.00 0.0083
2024-08-15 2024-06-30 13F/A-1 LOCKHEED MARTIN COM 539830109 4,796 13 0.27 2,240 2.99 0.0072
2024-08-14 2024-06-30 13F LOCKHEED MARTIN COM 539830109 4,796 13 2,240 0.0072
2024-05-15 2024-03-31 13F LOCKHEED MARTIN COM 539830109 4,783 -4 -0.08 2,176 0.28 0.0070
2024-02-13 2023-12-31 13F LOCKHEED MARTIN COM 539830109 4,787 6 0.13 2,170 10.95 0.0075
2023-11-14 2023-09-30 13F LOCKHEED MARTIN COM 539830109 4,781 -457 -8.72 1,955 -18.91 0.0072
2023-08-14 2023-06-30 13F LOCKHEED MARTIN COM 539830109 5,238 -2 -0.04 2,411 -2.66 0.0088
2023-05-15 2023-03-31 13F LOCKHEED MARTIN COM 539830109 5,240 -2,507 -32.36 2,477 -34.26 0.0095
2023-02-14 2022-12-31 13F LOCKHEED MARTIN COM 539830109 7,747 120 1.57 3,769 27.90 0.0138
2022-11-14 2022-09-30 13F LOCKHEED MARTIN COM 539830109 7,627 -146 -1.88 2,946 -11.85 0.0125
2022-08-15 2022-06-30 13F LOCKHEED MARTIN COM 539830109 7,773 -25 -0.32 3,342 -2.91 0.0135
2022-05-16 2022-03-31 13F LOCKHEED MARTIN COM 539830109 7,798 829 11.90 3,442 39.01 0.0113
2022-02-14 2021-12-31 13F LOCKHEED MARTIN COM 539830109 6,969 96 1.40 2,476 4.38 0.0082
2021-11-15 2021-09-30 13F LOCKHEED MARTIN COM 539830109 6,873 399 6.16 2,372 -3.14 0.0087
2021-08-16 2021-06-30 13F LOCKHEED MARTIN COM 539830109 6,474 -110 -1.67 2,449 0.70 0.0089
2021-05-14 2021-03-31 13F LOCKHEED MARTIN COM 539830109 6,584 708 12.05 2,432 16.64 0.0105
2021-02-16 2020-12-31 13F LOCKHEED MARTIN COM 539830109 5,876 26 0.44 2,085 -7.00 0.0100
2020-11-12 2020-09-30 13F LOCKHEED MARTIN COMMON 539830109 5,850 0 0.00 2,242 5.01 0.0116
2020-08-14 2020-06-30 13F LOCKHEED MARTIN COMMON 539830109 5,850 -175 -2.90 2,135 4.55 0.0123
2020-05-06 2020-03-31 13F LOCKHEED MARTIN COMMON 539830109 6,025 -431 -6.68 2,042 -18.74 0.0132
2020-02-13 2019-12-31 13F LOCKHEED MARTIN COMMON 539830109 6,456 -95 -1.45 2,513 -1.64 0.0126
2019-11-13 2019-09-30 13F LOCKHEED MARTIN COMMON 539830109 6,551 -362 -5.24 2,555 1.67 0.0141
2019-08-16 2019-06-30 13F LOCKHEED MARTIN COMMON 539830109 6,913 -371 -5.09 2,513 14.96 0.0140
2019-04-12 2019-03-31 13F LOCKHEED MARTIN COMMON 539830109 7,284 -597 -7.58 2,186 5.96 0.0126
2019-01-30 2018-12-31 13F LOCKHEED MARTIN COMMON 539830109 7,881 75 0.96 2,063 -23.59 0.0128
2018-10-15 2018-09-30 13F LOCKHEED MARTIN COMMON 539830109 7,806 -35 -0.45 2,700 16.58 0.0144
2018-08-01 2018-06-30 13F LOCKHEED MARTIN COMMON 539830109 7,841 -296 -3.64 2,316 -15.75 0.0134
2018-04-20 2018-03-31 13F LOCKHEED MARTIN COMMON 539830109 8,137 77 0.96 2,749 6.26 0.0156
2018-01-22 2017-12-31 13F LOCKHEED MARTIN COMMON 539830109 8,060 56 0.70 2,587 4.19 0.0142
2017-10-25 2017-09-30 13F LOCKHEED MARTIN COMMON 539830109 8,004 354 4.63 2,483 16.96 0.0142
2017-08-10 2017-06-30 13F/A-2 LOCKHEED MARTIN COMMON 539830109 7,650 230 3.10 2,123 6.95 0.0124
2017-08-01 2017-06-30 13F/A-1 LOCKHEED MARTIN COMMON 539830109 7,650 0 2,123 0.0124
2017-07-28 2017-06-30 13F LOCKHEED MARTIN COMMON 539830109 7,650 230 2,123
2017-04-25 2017-03-31 13F/A-1 LOCKHEED MARTIN COMMON 539830109 7,420 -322 -4.16 1,985 2.58 0.0118
2017-04-24 2017-03-31 13F LOCKHEED MARTIN COMMON 539830109 8,386 2,010
2017-01-25 2016-12-31 13F LOCKHEED MARTIN COMMON 539830109 7,742 -644 -7.68 1,935 -3.73 0.0118
2016-10-20 2016-09-30 13F LOCKHEED MARTIN COMMON 539830109 8,386 -41 -0.49 2,010 -3.87 0.0123
2016-07-14 2016-06-30 13F LOCKHEED MARTIN COMMON 539830109 8,427 21 0.25 2,091 12.36 0.0128
2016-04-22 2016-03-31 13F LOCKHEED MARTIN COMMON 539830109 8,406 -384 -4.37 1,861 -2.46 0.0114
2016-01-20 2015-12-31 13F LOCKHEED MARTIN COMMON 539830109 8,790 1,000 12.84 1,908 18.14 0.0117
2015-10-26 2015-09-30 13F LOCKHEED MARTIN COMMON 539830109 7,790 590 8.19 1,615 20.70 0.0104
2015-07-17 2015-06-30 13F LOCKHEED MARTIN COMMON 539830109 7,200 41 0.57 1,338 -7.91 0.0079
2015-04-30 2015-03-31 13F LOCKHEED MARTIN COMMON 539830109 7,159 -16 -0.22 1,453 5.21 0.0084
2015-01-20 2014-12-31 13F LOCKHEED MARTIN COMMON 539830109 7,175 290 4.21 1,381 9.78 0.0078
2014-10-23 2014-09-30 13F LOCKHEED MARTIN COMMON 539830109 6,885 -200 -2.82 1,258 10.54 0.0073
2014-08-14 2014-06-30 13F/A-1 LOCKHEED MARTIN COMMON 539830109 7,085 39 0.55 1,138 -1.04 0.0072
2014-05-16 2014-03-31 13F LOCKHEED MARTIN COMMON 539830109 7,046 130 1.88 1,150 11.87 0.0076
2014-02-04 2013-12-31 13F LOCKHEED MARTIN COMMON 539830109 6,916 -250 -3.49 1,028 12.47 0.0068
2013-10-29 2013-09-30 13F LOCKHEED MARTIN COMMON 539830109 7,166 0 0.00 914 6.40 0.0064
2013-08-13 2013-06-30 13F LOCKHEED MARTIN COMMON 539830109 7,166 7,166 859 0.0059
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.