Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionBoston Partners
Latest Disclosed Ownership1,893 shares
Latest Disclosed Value $ 1,144,310
Boston Partners reports 0.05% increase in ownership of LMT / Lockheed Martin Corporation

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 1,893 shares of Lockheed Martin Corporation (MX:LMT) valued at $1,144,310 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,892 shares of Lockheed Martin Corporation. This represents a change in shares of 0.05% 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)
2026-05-11 2026-03-31 13F LOCKHEED MARTIN COM 539830109 1,893 1 0.05 1,144 25.03 0.0005
2026-02-13 2025-12-31 13F LOCKHEED MARTIN COM 539830109 1,892 -16 -0.84 915 -3.89 0.0009
2025-11-13 2025-09-30 13F LOCKHEED MARTIN COM 539830109 1,908 1,908 952 0.0010
2023-05-09 2023-03-31 13F LOCKHEED MARTIN COM 539830109 0 -3,113 -100.00 0 -100.00
2023-02-08 2022-12-31 13F LOCKHEED MARTIN COM 539830109 3,113 72 2.37 1,514 28.85 0.0020
2022-11-09 2022-09-30 13F LOCKHEED MARTIN COM 539830109 3,041 60 2.01 1,175 -8.35 0.0017
2022-08-10 2022-06-30 13F LOCKHEED MARTIN COM 539830109 2,981 0 0.00 1,282 -2.58 0.0018
2022-05-10 2022-03-31 13F LOCKHEED MARTIN COM 539830109 2,981 -723 -19.52 1,316 0.00 0.0016
2022-02-04 2021-12-31 13F LOCKHEED MARTIN COM 539830109 3,704 465 14.36 1,316 17.71 0.0016
2021-11-05 2021-09-30 13F LOCKHEED MARTIN COM 539830109 3,239 -466 -12.58 1,118 -20.26 0.0014
2021-08-12 2021-06-30 13F LOCKHEED MARTIN COM 539830109 3,705 -96 -2.53 1,402 -0.14 0.0018
2021-05-10 2021-03-31 13F LOCKHEED MARTIN COM 539830109 3,801 1,164 44.14 1,404 50.00 0.0019
2021-02-10 2020-12-31 13F/A-1 LOCKHEED MARTIN COM 539830109 2,637 2,622 17,480.00 936 15,500.00 0.0015
2021-02-04 2020-12-31 13F LOCKHEED MARTIN COM 539830109 2,637 2,622 936 561.5444
2020-02-06 2019-12-31 13F/A-1 LOCKHEED MARTIN COM 539830109 15 0 0.00 6 0.00 0.0000
2020-02-05 2019-12-31 13F LOCKHEED MARTIN COM 539830109 15 0 6 3.3734
2019-11-20 2019-09-30 13F/A-1 LOCKHEED MARTIN COM 539830109 15 0 0.00 6 20.00 0.0000
2019-11-08 2019-09-30 13F LOCKHEED MARTIN COM 539830109 15 0 6 0.0000
2019-08-09 2019-06-30 13F LOCKHEED MARTIN COM 539830109 15 15 5 0.0000
2018-11-14 2018-09-30 13F LOCKHEED MARTIN COM 539830109 0 -85,782 -100.00 0 -100.00
2018-08-03 2018-06-30 13F LOCKHEED MARTIN COM 539830109 85,782 -42,333 -33.04 25,343 -41.46 0.0304
2018-05-04 2018-03-31 13F LOCKHEED MARTIN COM 539830109 128,115 15 0.01 43,294 5.27 0.0522
2018-02-14 2017-12-31 13F/A-1 LOCKHEED MARTIN COM 539830109 128,100 -51,320 -28.60 41,127 -26.13 0.0484
2018-02-01 2017-12-31 13F LOCKHEED MARTIN COM 539830109 128,100 -51,320 41,127
2017-11-02 2017-09-30 13F LOCKHEED MARTIN COM 539830109 179,420 32 0.02 55,672 11.79 0.0688
2017-08-02 2017-06-30 13F LOCKHEED MARTIN COM 539830109 179,388 -9,712 -5.14 49,800 -1.59 0.0633
2017-05-03 2017-03-31 13F LOCKHEED MARTIN COM 539830109 189,100 -273 -0.14 50,603 6.91 0.0646
2017-02-06 2016-12-31 13F LOCKHEED MARTIN COM 539830109 189,373 -834,260 -81.50 47,332 -80.71 0.0622
2016-11-09 2016-09-30 13F LOCKHEED MARTIN COM 539830109 1,023,633 -433,445 -29.75 245,385 -32.14 0.3431
2016-08-05 2016-06-30 13F LOCKHEED MARTIN COM 539830109 1,457,078 -73,021 -4.77 361,603 6.69 0.5225
2016-05-12 2016-03-31 13F LOCKHEED MARTIN COM 539830109 1,530,099 -1,436,183 -48.42 338,917 -47.38 0.4992
2016-02-08 2015-12-31 13F LOCKHEED MARTIN COM 539830109 2,966,282 37,925 1.30 644,128 6.10 0.9227
2015-11-10 2015-09-30 13F LOCKHEED MARTIN COM 539830109 2,928,357 128,814 4.60 607,077 16.65 0.9254
2015-08-10 2015-06-30 13F LOCKHEED MARTIN COM 539830109 2,799,543 -405,430 -12.65 520,435 -19.99 0.7476
2015-05-05 2015-03-31 13F LOCKHEED MARTIN COM 539830109 3,204,973 -109,274 -3.30 650,481 1.92 0.9684
2015-02-09 2014-12-31 13F LOCKHEED MARTIN COM 539830109 3,314,247 132,265 4.16 638,225 9.74 0.9579
2014-11-12 2014-09-30 13F LOCKHEED MARTIN COM 539830109 3,181,982 146,114 4.81 581,603 19.19 0.9439
2014-08-08 2014-06-30 13F LOCKHEED MARTIN COM 539830109 3,035,868 793,170 35.37 487,954 33.29 0.8172
2014-05-07 2014-03-31 13F LOCKHEED MARTIN COM 539830109 2,242,698 237,567 11.85 366,097 22.82 0.6678
2014-02-06 2013-12-31 13F LOCKHEED MARTIN COM 539830109 2,005,131 777,360 63.31 298,083 90.34 0.6111
2013-11-12 2013-09-30 13F LOCKHEED MARTIN COM 539830109 1,227,771 1,180,078 2,474.32 156,602 2,927.30 0.3776
2013-08-01 2013-06-30 13F LOCKHEED MARTIN COM 539830109 47,693 47,693 5,173 0.0142
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.