Duke Energy Corporation
US ˙ NYSE ˙ US26441C2044

SecurityDUK / Duke Energy Corporation
InstitutionCincinnati Casualty Co
Latest Disclosed Ownership66,300 shares
Latest Disclosed Value $ 8,681,322
Cincinnati Casualty Co ownership in DUK / Duke Energy Corporation

On May 11, 2026 - Cincinnati Casualty Co filed a 13F-HR form disclosing ownership of 66,300 shares of Duke Energy Corporation (US:DUK) valued at $8,681,322 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 66,300 shares of Duke Energy Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $8,024,952 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)
2026-05-11 2026-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 8,681 11.71 4.5341
2026-02-12 2025-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 7,771 -5.28 3.9431
2025-11-06 2025-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 8,205 4.87 4.1717
2025-08-07 2025-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 7,823 -3.25 4.1430
2025-05-08 2025-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 8,087 13.20 4.6345
2025-02-12 2024-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 7,143 -6.55 4.0005
2024-11-07 2024-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 7,644 15.03 4.3081
2024-08-08 2024-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,645 3.65 3.6405
2024-05-03 2024-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,412 -0.34 3.5069
2024-02-08 2023-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,434 9.95 3.7724
2023-11-03 2023-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,852 -1.65 3.7347
2023-08-08 2023-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,950 -6.97 3.6089
2023-05-05 2023-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,396 -6.34 4.0073
2023-02-09 2022-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,828 10.72 4.2081
2022-11-08 2022-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,167 -13.24 4.3288
2022-08-05 2022-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 7,108 -3.98 4.6403
2022-05-12 2022-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 7,403 6.44 4.3065
2022-02-11 2021-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,955 7.50 3.7309
2021-11-05 2021-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,470 -1.15 3.8417
2021-08-06 2021-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,545 2.27 3.8906
2021-05-06 2021-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,400 5.44 4.0230
2021-02-12 2020-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,070 3.37 4.1541
2020-11-06 2020-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,872 10.86 4.5817
2020-08-06 2020-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,297 -1.21 4.3255
2020-05-08 2020-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,362 -11.33 4.9228
2020-02-11 2019-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,047 -4.86 4.2910
2019-11-05 2019-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 6,356 8.65 4.9033
2019-08-07 2019-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,850 -1.96 4.4951
2019-05-03 2019-03-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,967 4.28 4.9023
2019-02-11 2018-12-31 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,722 7.86 5.3096
2018-11-06 2018-09-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,305 1.18 4.3709
2018-08-13 2018-06-30 13F DUKE ENERGY ORD COMMON 26441C204 66,300 0 0.00 5,243 2.08 4.6869
2018-05-10 2018-03-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,136 -7.89 4.5947
2018-02-13 2017-12-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,576 0.22 4.7310
2017-11-03 2017-09-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,564 0.40 4.7768
2017-08-08 2017-06-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,542 1.93 4.9312
2017-05-08 2017-03-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,437 5.65 4.9364
2017-02-15 2016-12-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,146 -3.03 4.8887
2016-11-07 2016-09-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,307 -6.70 5.2476
2016-08-09 2016-06-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,688 6.34 5.8070
2016-05-06 2016-03-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,349 13.02 6.1212
2016-02-09 2015-12-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,733 -0.78 5.8017
2015-11-10 2015-09-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,770 1.88 6.0913
2015-08-07 2015-06-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,682 -8.03 5.4322
2015-05-08 2015-03-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,091 -8.09 5.6405
2015-02-10 2014-12-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 5,539 11.74 6.1175
2014-11-07 2014-09-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,957 0.77 5.4825
2014-08-08 2014-06-30 13F DUKE ENERGY CORP COMMON 26441C204 66,300 0 0.00 4,919 4.17 5.3127
2014-05-14 2014-03-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,722 3.21 5.2435
2014-02-11 2013-12-31 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,575 3.32 5.1204
2013-11-06 2013-09-30 13F DUKE ENERGY COMMON 26441C204 66,300 0 0.00 4,428 -1.05 5.3573
2013-08-02 2013-06-30 13F DUKE ENERGY COMMON 26441C204 66,300 66,300 4,475 5.6550
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.