Duke Energy Corporation
US ˙ NYSE ˙ US26441C2044

SecurityDUK / Duke Energy Corporation
InstitutionCalifornia State Teachers Retirement System
Latest Disclosed Ownership901,695 shares
Latest Disclosed Value $ 118,067,943
California State Teachers Retirement System reports 3.11% decrease in ownership of DUK / Duke Energy Corporation

On May 15, 2026 - California State Teachers Retirement System filed a 13F-HR form disclosing ownership of 901,695 shares of Duke Energy Corporation (US:DUK) valued at $118,067,943 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 930,621 shares of Duke Energy Corporation. This represents a change in shares of -3.11% during the quarter. The current value of the position is $109,141,163 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.

Upgrade to unlock premium data and export to Excel .

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 DUKE ENERGY COMMON STOCK 26441C204 901,695 -28,926 -3.11 118,068 8.24 0.1250
2026-02-17 2025-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 930,621 -6,000 -0.64 109,078 -5.89 0.1091
2025-11-14 2025-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 936,621 4,977 0.53 115,907 5.43 0.1189
2025-08-14 2025-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 931,644 11,775 1.28 109,934 -2.02 0.1221
2025-05-15 2025-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 919,869 241 0.03 112,196 13.24 0.1387
2025-03-18 2024-12-31 13F/A-1 DUKE ENERGY COMMON STOCK 26441C204 919,628 -40,632 -4.23 99,081 -10.51 0.1157
2025-02-14 2024-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 919,628 -40,632 99,081 0.1430
2025-04-04 2024-09-30 13F/A-1 DUKE ENERGY COMMON STOCK 26441C204 960,260 -65,140 -6.35 110,718 7.73 0.1291
2024-11-14 2024-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 960,260 -65,140 110,718 0.1552
2025-04-08 2024-06-30 13F/A-1 DUKE ENERGY COMMON STOCK 26441C204 1,025,400 -33,438 -3.16 102,776 0.37 0.1260
2024-08-14 2024-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,025,400 -33,438 102,776 0.1502
2024-05-16 2024-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,058,838 -40,553 -3.69 102,400 -4.02 0.1294
2024-02-13 2023-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,099,391 -36,598 -3.22 106,685 6.41 0.1471
2023-11-14 2023-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,135,989 -81,572 -6.70 100,262 -8.24 0.1541
2023-08-21 2023-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,217,561 -26,765 -2.15 109,264 -8.98 0.1543
2023-05-09 2023-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,244,326 -12,851 -1.02 120,040 -7.29 0.1786
2023-02-14 2022-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,257,177 14,151 1.14 129,477 11.98 0.2034
2022-11-21 2022-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,243,026 -17,145 -1.36 115,626 -14.42 0.1954
2022-08-15 2022-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,260,171 1,590 0.13 135,103 -3.86 0.2138
2022-05-16 2022-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,258,581 -84,505 -6.29 140,533 -0.25 0.1850
2022-02-15 2021-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,343,086 51,663 4.00 140,890 11.79 0.1647
2021-11-15 2021-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,291,423 -18,985 -1.45 126,030 -2.58 0.1618
2021-08-16 2021-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,310,408 -2,503 -0.19 129,363 2.07 0.1625
2021-05-18 2021-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,312,911 -32,833 -2.44 126,735 2.86 0.1674
2021-02-16 2020-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,345,744 66 0.00 123,216 3.39 0.1723
2020-11-17 2020-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,345,678 -54,527 -3.89 119,173 6.54 0.1913
2020-08-17 2020-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,400,205 -83,998 -5.66 111,862 -6.81 0.1970
2020-05-13 2020-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,484,203 -21,704 -1.44 120,042 -12.60 0.2585
2020-02-14 2019-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,505,907 234,642 18.46 137,354 12.71 0.2336
2019-11-15 2019-09-30 13F/A-1 DUKE ENERGY COMMON STOCK 26441C204 1,271,265 3,315 0.26 121,863 8.92 0.2377
2019-11-14 2019-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,267,950 0 111,884 220,468.5688
2019-08-14 2019-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,267,950 31,999 2.59 111,884 0.58 0.2207
2019-05-09 2019-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,235,951 -24,778 -1.97 111,236 2.24 0.2278
2019-02-13 2018-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,260,729 -10,868 -0.85 108,801 6.93 0.2476
2018-11-14 2018-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,271,597 21,075 1.69 101,753 2.89 0.1978
2018-08-14 2018-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,250,522 5,716 0.46 98,891 2.55 0.2059
2018-05-15 2018-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,244,806 4,922 0.40 96,435 -7.53 0.2065
2018-02-14 2017-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,239,884 45,580 3.82 104,287 4.05 0.2145
2017-11-13 2017-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,194,304 -100,788 -7.78 100,226 -7.42 0.2219
2017-08-15 2017-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,295,092 -122,604 -8.65 108,256 -6.89 0.2308
2017-05-12 2017-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,417,696 -62,200 -4.20 116,265 1.21 0.2350
2017-02-14 2016-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,479,896 -38,100 -2.51 114,870 -5.46 0.2340
2016-11-09 2016-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,517,996 12,800 0.85 121,500 -5.91 0.2508
2016-08-01 2016-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,505,196 -5,578 -0.37 129,131 5.94 0.2780
2016-05-16 2016-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,510,774 188,460 14.25 121,889 29.12 0.2601
2016-01-29 2015-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,322,314 20,908 1.61 94,400 0.83 0.2302
2015-10-30 2015-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,301,406 38,404 3.04 93,623 4.97 0.2437
2015-08-03 2015-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,263,002 -74,513 -5.57 89,193 -13.15 0.2156
2015-05-07 2015-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,337,515 -21,851 -1.61 102,694 -9.57 0.2432
2015-02-11 2014-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,359,366 12,669 0.94 113,561 12.78 0.2663
2014-11-10 2014-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,346,697 55,421 4.29 100,693 5.11 0.2496
2014-08-13 2014-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,291,276 7,500 0.58 95,800 4.78 0.2409
2014-05-08 2014-03-31 13F/A-1 DUKE ENERGY COMMON STOCK 26441C204 1,283,776 6,000 0.47 91,431 3.69 0.2419
2014-05-05 2014-03-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,283,776 91,431
2014-02-10 2013-12-31 13F DUKE ENERGY COMMON STOCK 26441C204 1,277,776 8,800 0.69 88,179 4.06 0.2385
2013-11-18 2013-09-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,268,976 39,172 3.19 84,742 2.08 0.2522
2013-07-29 2013-06-30 13F DUKE ENERGY COMMON STOCK 26441C204 1,229,804 6,166 0.50 83,012 -6.54 0.2696
2013-07-24 2013-03-31 13F/A-1 DUKE ENERGY COMMON STOCK 26441C204 1,223,638 1,223,638 88,824 0.2981
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.