Lockheed Martin Corporation
MX ˙ BMV ˙ US5398301094
SecurityMX:LMT / Lockheed Martin Corporation
InstitutionMassmutual Trust Co Fsb/adv
Latest Disclosed Ownership19,873 shares
Latest Disclosed Value $ 12,011,042
Massmutual Trust Co Fsb/adv reports 7.05% decrease in ownership of LMT / Lockheed Martin Corporation

On April 13, 2026 - Massmutual Trust Co Fsb/adv filed a 13F-HR form disclosing ownership of 19,873 shares of Lockheed Martin Corporation (MX:LMT) valued at $12,011,042 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 21,381 shares of Lockheed Martin Corporation. This represents a change in shares of -7.05% 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)
2026-04-13 2026-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 19,873 -1,508 -7.05 12,011 16.15 0.3271
2026-01-07 2025-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 21,381 -562 -2.56 10,341 -5.60 0.2661
2025-10-22 2025-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 21,943 -1,245 -5.37 10,954 2.00 0.2790
2025-07-09 2025-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 23,188 -179 -0.77 10,739 2.88 0.2861
2025-04-01 2025-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 23,367 11 0.05 10,438 -8.03 0.3019
2025-01-16 2024-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 23,356 -568 -2.37 11,350 -18.84 0.3184
2024-10-02 2024-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 23,924 -323 -1.33 13,985 23.48 0.3983
2024-07-02 2024-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 24,247 -170 -0.70 11,326 1.97 0.3436
2024-04-09 2024-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 24,417 53 0.22 11,106 0.58 0.3456
2024-01-03 2023-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 24,364 -432 -1.74 11,043 8.90 0.3704
2023-10-04 2023-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 24,796 1,338 5.70 10,140 -6.10 0.3744
2023-08-02 2023-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 23,458 -400 -1.68 10,799 -4.25 0.3884
2023-04-11 2023-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 23,858 -376 -1.55 11,278 102,427.27 0.4311
2023-01-06 2022-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 24,234 110 0.46 12 22.22 0.4849
2022-10-07 2022-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 24,124 -1,104 -4.38 9 -10.00 0.4229
2022-07-07 2022-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 25,228 191 0.76 11 -9.09 0.4698
2022-04-08 2022-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 25,037 1,207 5.07 11 37.50 0.4177
2022-02-09 2021-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 23,830 -388 -1.60 8 0.00 0.3145
2021-11-12 2021-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 24,218 588 2.49 8 0.00 0.3455
2021-08-16 2021-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 23,630 911 4.01 9 0.00 0.3797
2021-05-17 2021-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 22,719 887 4.06 8 14.29 0.3948
2021-02-16 2020-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 21,832 1,206 5.85 8 0.00 0.3968
2020-11-13 2020-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 20,626 -4,371 -17.49 8 -99.92 0.4621
2020-08-13 2020-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 24,997 -302 -1.19 9,122 6.38 0.5879
2020-05-15 2020-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 25,299 569 2.30 8,575 -10.95 0.6846
2020-05-15 2019-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 24,730 1,228 5.23 9,629 5.04 0.5948
2019-11-14 2019-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 23,502 842 3.72 9,167 11.28 0.6139
2019-08-14 2019-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 22,660 1,971 9.53 8,238 32.66 0.5696
2019-05-15 2019-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 20,689 3,899 23.22 6,210 41.26 0.4478
2019-02-26 2018-12-31 13F Lockheed Martin Common / Ordinary Stock 539830109 16,790 2,067 14.04 4,396 -13.69 0.3762
2018-11-09 2018-09-30 13F Lockheed Martin Common / Ordinary Stock 539830109 14,723 5,928 67.40 5,094 96.04 0.3780
2018-08-20 2018-06-30 13F Lockheed Martin Common / Ordinary Stock 539830109 8,795 -2,599 -22.81 2,598 -32.52 0.2074
2018-05-21 2018-03-31 13F Lockheed Martin Common / Ordinary Stock 539830109 11,394 -441 -3.73 3,850 1.34 0.3186
2018-03-01 2017-12-31 13F/A-1 Lockheed Martin Common / Ordinary Stock 539830109 11,835 -169 -1.41 3,800 2.01 0.3148
2018-02-21 2017-12-31 13F PowerShares S&P International Developed Low Volatility Portfolio Exchange Traded Fund 539830109 1,595 -10,409 54
2018-02-13 2017-09-30 13F Lockheed Martin common 539830109 12,004 -659 -5.20 3,725 5.95 0.3087
2017-08-14 2017-06-30 13F Lockheed Martin common 539830109 12,663 -999 -7.31 3,515 -3.83 0.3130
2017-05-02 2017-03-31 13F Lockheed Martin common 539830109 13,662 -841 -5.80 3,656 0.86 0.3434
2017-02-13 2016-12-31 13F Lockheed Martin common 539830109 14,503 99 0.69 3,625 1.40 0.4433
2016-08-10 2016-06-30 13F LOCKHEED MARTIN common 539830109 14,404 -3,322 -18.74 3,575 -8.97 0.4517
2016-05-10 2016-03-31 13F LOCKHEED MARTIN common 539830109 17,726 30 0.17 3,926 2.19 0.5296
2016-02-12 2015-12-31 13F LOCKHEED MARTIN common 539830109 17,696 17,263 3,986.84 3,843 4,763.29 0.5495
2015-11-04 2015-09-30 13F LOCKHEED MARTIN common 539830109 433 302 230.53 79 276.19 0.0167
2015-07-29 2015-06-30 13F LOCKHEED MARTIN common 539830109 131 -7,820 -98.35 21 -98.70 0.0047
2015-05-11 2015-03-31 13F LOCKHEED MARTIN common 539830109 7,951 1,124 16.46 1,614 22.75 0.2659
2015-02-05 2014-12-31 13F LOCKHEED MARTIN common 539830109 6,827 6,394 1,476.67 1,315 1,563.29 0.4250
2014-11-04 2014-09-30 13F LOCKHEED MARTIN COMMON STOCK 539830109 433 302 230.53 79 276.19 0.0157
2014-07-09 2014-06-30 13F LOCKHEED MARTIN COMMON STOCK 539830109 131 0 0.00 21 0.00 0.0083
2014-05-15 2014-03-31 13F LOCKHEED MARTIN common 539830109 131 8 6.50 21 16.67 0.0125
2014-02-14 2013-12-31 13F/A-1 LOCKHEED MARTIN COMMON STOCK 539830109 123 123 18 0.0168
2014-02-13 2013-12-31 13F LOCKHEED MARTIN COMMON STOCK 539830109 123 18 0.0168
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.