Duke Energy Corporation
US ˙ NYSE ˙ US26441C2044

SecurityDUK / Duke Energy Corporation
InstitutionLockheed Martin Investment Management Co
Latest Disclosed Ownership232,670 shares
Latest Disclosed Value $ 30,465,810
Lockheed Martin Investment Management Co reports 39.26% decrease in ownership of DUK / Duke Energy Corporation

On May 6, 2026 - Lockheed Martin Investment Management Co filed a 13F-HR form disclosing ownership of 232,670 shares of Duke Energy Corporation (US:DUK) valued at $30,465,810 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 383,050 shares of Duke Energy Corporation. This represents a change in shares of -39.26% during the quarter. The current value of the position is $28,162,377 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)
2026-05-06 2026-03-31 13F DUKE ENERGY CORP COM NEW 26441C204 232,670 -150,380 -39.26 30,466 -32.14 1.1151
2026-02-05 2025-12-31 13F DUKE ENERGY CORP COM NEW 26441C204 383,050 108,420 39.48 44,897 32.11 1.4994
2025-10-30 2025-09-30 13F DUKE ENERGY CORP COM NEW 26441C204 274,630 27,820 11.27 33,985 16.69 1.2517
2025-08-04 2025-06-30 13F DUKE ENERGY CORP COM NEW 26441C204 246,810 84,200 51.78 29,124 46.84 1.0645
2025-05-12 2025-03-31 13F DUKE ENERGY CORP COM NEW 26441C204 162,610 26,470 19.44 19,834 35.22 0.8071
2025-01-27 2024-12-31 13F DUKE ENERGY CORP COM NEW 26441C204 136,140 -4,870 -3.45 14,668 -9.79 0.5843
2024-11-14 2024-09-30 13F DUKE ENERGY CORP COM NEW 26441C204 141,010 11,740 9.08 16,258 25.49 0.7528
2024-08-07 2024-06-30 13F DUKE ENERGY CORP COM NEW 26441C204 129,270 -1,630 -1.25 12,957 3.46 0.7501
2024-05-13 2024-03-31 13F DUKE ENERGY CORP COM NEW 26441C204 130,900 -12,300 -8.59 12,524 -8.86 0.9090
2024-02-12 2023-12-31 13F DUKE ENERGY CORP COM NEW 26441C204 143,200 -12,990 -8.32 13,741 -3.92 0.9844
2023-11-13 2023-09-30 13F DUKE ENERGY CORP COM NEW 26441C204 156,190 -20,020 -11.36 14,302 -9.56 1.0976
2023-08-14 2023-06-30 13F Duke Energy Common Equities 26441C204 176,210 47,180 36.57 15,813 27.04 0.9076
2023-05-11 2023-03-31 13F Duke Energy Common Equities 26441C204 129,030 -5,280 -3.93 12,448 -10.01 0.7051
2023-02-14 2022-12-31 13F/A-1 Duke Energy Common Equities 26441C204 134,310 5,270 4.08 13,833 15.24 0.9184
2023-02-08 2022-12-31 13F Duke Energy Common Equities 26441C204 134,310 5,270 14 0.9184
2022-11-03 2022-09-30 13F Duke Energy Common Equities 26441C204 129,040 -33,900 -20.81 12,003 -31.29 0.9654
2022-08-12 2022-06-30 13F Duke Energy Common Equities 26441C204 162,940 -27,500 -14.44 17,468 -17.85 1.1867
2022-05-12 2022-03-31 13F Duke Energy Common Equities 26441C204 190,440 17,120 9.88 21,264 16.96 1.1705
2022-02-10 2021-12-31 13F Duke Energy Common Equities 26441C204 173,320 87,300 101.49 18,181 116.60 0.9732
2021-11-12 2021-09-30 13F Duke Energy Common Equities 26441C204 86,020 -2,420 -2.74 8,394 -3.85 0.4550
2021-08-06 2021-06-30 13F Duke Energy Common Equities 26441C204 88,440 -25,270 -22.22 8,730 -20.46 0.4565
2021-05-12 2021-03-31 13F Duke Energy Common Equities 26441C204 113,710 31,540 38.38 10,976 45.90 0.5613
2021-02-12 2020-12-31 13F/A-1 Duke Energy Common Equities 26441C204 82,170 0 0.00 7,523 3.39 0.3892
2021-02-12 2020-12-31 13F Duke Energy Common Equities 26441C204 82,170 7,523 0.3892
2020-11-13 2020-09-30 13F Duke Energy Common Equities 26441C204 82,170 -9,030 -9.90 7,276 -0.12 0.4509
2020-07-31 2020-06-30 13F Duke Energy Common Equities 26441C204 91,200 91,200 7,285 0.4812
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.