NRG Energy, Inc.
MX ˙ BMV ˙ US6293775085
SecurityMX:NRG / NRG Energy, Inc.
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership27,645 shares
Latest Disclosed Value $ 4,040,040
Guggenheim Capital Llc reports 56.85% increase in ownership of NRG / NRG Energy, Inc.

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 27,645 shares of NRG Energy, Inc. (MX:NRG) valued at $4,040,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 17,625 shares of NRG Energy, Inc.. This represents a change in shares of 56.85% 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)
2026-05-15 2026-03-31 13F NRG ENERGY COM NEW 629377508 27,645 10,020 56.85 4,040 43.98 0.0156
2026-02-17 2025-12-31 13F NRG ENERGY COM NEW 629377508 17,625 -3,111 -15.00 2,807 -16.44 0.0201
2025-11-13 2025-09-30 13F NRG ENERGY COM NEW 629377508 20,736 5,386 35.09 3,358 36.28 0.0244
2025-08-13 2025-06-30 13F NRG ENERGY COM NEW 629377508 15,350 -14 -0.09 2,465 68.08 0.0196
2025-05-14 2025-03-31 13F NRG ENERGY COM NEW 629377508 15,364 -6,121 -28.49 1,467 -24.36 0.0135
2025-02-13 2024-12-31 13F NRG ENERGY COM NEW 629377508 21,485 -780 -3.50 1,938 -4.44 0.0157
2024-11-13 2024-09-30 13F NRG ENERGY COM NEW 629377508 22,265 -25,971 -53.84 2,028 -45.99 0.0142
2024-08-14 2024-06-30 13F NRG ENERGY COM NEW 629377508 48,236 13,420 38.55 3,756 59.38 0.0266
2024-05-14 2024-03-31 13F NRG ENERGY COM NEW 629377508 34,816 -17,655 -33.65 2,357 -13.13 0.0166
2024-02-14 2023-12-31 13F NRG ENERGY COM NEW 629377508 52,471 8,601 19.61 2,713 60.57 0.0205
2023-11-14 2023-09-30 13F NRG ENERGY COM NEW 629377508 43,870 -18,496 -29.66 1,690 -27.54 0.0145
2023-08-11 2023-06-30 13F NRG ENERGY COM NEW 629377508 62,366 -25,047 -28.65 2,332 -22.22 0.0183
2023-05-11 2023-03-31 13F NRG ENERGY COM NEW 629377508 87,413 -6,717 -7.14 2,997 0.07 0.0252
2023-02-14 2022-12-31 13F NRG ENERGY COM NEW 629377508 94,130 -63,200 -40.17 2,995 -50.26 0.0263
2022-11-14 2022-09-30 13F NRG ENERGY COM NEW 629377508 157,330 -11,101 -6.59 6,021 -6.35 0.0551
2022-08-15 2022-06-30 13F NRG ENERGY COM NEW 629377508 168,431 -22,992 -12.01 6,429 -12.45 0.0507
2022-05-16 2022-03-31 13F NRG ENERGY COM NEW 629377508 191,423 -57,084 -22.97 7,343 -31.41 0.0442
2022-02-14 2021-12-31 13F NRG ENERGY COM NEW 629377508 248,507 132,723 114.63 10,705 126.46 0.0558
2021-11-15 2021-09-30 13F NRG ENERGY COM NEW 629377508 115,784 4,511 4.05 4,727 5.40 0.0284
2021-08-13 2021-06-30 13F NRG ENERGY COM NEW 629377508 111,273 22,587 25.47 4,485 34.08 0.0264
2021-05-13 2021-03-31 13F NRG ENERGY COM NEW 629377508 88,686 9,161 11.52 3,345 12.02 0.0220
2021-02-16 2020-12-31 13F NRG ENERGY COM NEW 629377508 79,525 -101,320 -56.03 2,986 -46.29 0.0187
2020-11-13 2020-09-30 13F NRG ENERGY COM NEW 629377508 180,845 49,466 37.65 5,559 29.94 0.0402
2020-08-14 2020-06-30 13F NRG ENERGY COM NEW 629377508 131,379 -68,438 -34.25 4,278 -21.45 0.0331
2020-06-02 2020-03-31 13F NRG ENERGY COM NEW 629377508 199,817 -21,714 -9.80 5,446 -38.16 0.0548
2020-02-20 2019-12-31 13F/A-1 NRG ENERGY COM NEW 629377508 221,531 114,989 107.93 8,806 108.77 0.0661
2020-02-14 2019-12-31 13F NRG ENERGY COM NEW 629377508 221,531 114,989 8,806 52,191.4017
2020-02-20 2019-09-30 13F/A-1 NRG ENERGY COM NEW 629377508 106,542 -39,938 -27.27 4,218 -18.02 0.0337
2019-11-14 2019-09-30 13F NRG ENERGY COM NEW 629377508 106,542 -39,938 4,218 30,910.7412
2019-08-14 2019-06-30 13F NRG ENERGY COM NEW 629377508 146,480 -55,448 -27.46 5,145 -40.03 0.0419
2019-05-15 2019-03-31 13F NRG ENERGY COM NEW 629377508 201,928 43,697 27.62 8,579 36.89 0.0699
2019-02-14 2018-12-31 13F NRG ENERGY COM NEW 629377508 158,231 -26,517 -14.35 6,267 -9.29 0.0531
2018-11-14 2018-09-30 13F NRG ENERGY COM NEW 629377508 184,748 -89,911 -32.74 6,909 -18.06 0.0450
2018-08-14 2018-06-30 13F NRG ENERGY COM NEW 629377508 274,659 -1,174,986 -81.05 8,432 -80.95 0.0563
2018-05-15 2018-03-31 13F NRG ENERGY COM NEW 629377508 1,449,645 -11,410 -0.78 44,257 6.36 0.1080
2018-02-14 2017-12-31 13F NRG ENERGY COM NEW 629377508 1,461,055 -459,163 -23.91 41,611 -15.32 0.0986
2017-11-14 2017-09-30 13F NRG ENERGY COM NEW 629377508 1,920,218 -1,055,429 -35.47 49,139 -4.10 0.1154
2017-08-14 2017-06-30 13F NRG ENERGY COM NEW 629377508 2,975,647 211,597 7.66 51,240 -0.87 0.1357
2017-05-15 2017-03-31 13F NRG ENERGY COM NEW 629377508 2,764,050 -412,419 -12.98 51,689 32.73 0.1401
2017-02-14 2016-12-31 13F NRG ENERGY COM NEW 629377508 3,176,469 -1,289,449 -28.87 38,944 -22.21 0.1114
2016-11-14 2016-09-30 13F NRG ENERGY COM NEW 629377508 4,465,918 813,590 22.28 50,063 -8.56 0.1557
2016-08-15 2016-06-30 13F NRG ENERGY COM NEW 629377508 3,652,328 84,066 2.36 54,749 17.94 0.1720
2016-05-16 2016-03-31 13F NRG ENERGY COM NEW 629377508 3,568,262 -895,698 -20.07 46,423 -11.64 0.1465
2016-02-16 2015-12-31 13F NRG ENERGY COM NEW 629377508 4,463,960 2,680,195 150.25 52,541 98.35 0.1529
2015-11-16 2015-09-30 13F NRG ENERGY COM NEW 629377508 1,783,765 6,512 0.37 26,489 -34.86 0.0815
2015-08-14 2015-06-30 13F NRG ENERGY COM NEW 629377508 1,777,253 20,928 1.19 40,663 -8.09 0.1004
2015-05-18 2015-03-31 13F/A-1 NRG ENERGY COM NEW 629377508 1,756,325 115,179 7.02 44,243 0.03 0.1047
2015-05-15 2015-03-31 13F NRG ENERGY COM NEW 629377508 1,756,325 44,243
2015-02-17 2014-12-31 13F NRG ENERGY COM NEW 629377508 1,641,146 -32,099 -1.92 44,229 -13.28 0.1110
2014-11-14 2014-09-30 13F NRG ENERGY COM NEW 629377508 1,673,245 281,996 20.27 51,001 -1.45 0.1230
2014-08-14 2014-06-30 13F NRG ENERGY COM NEW 629377508 1,391,249 219,752 18.76 51,753 38.92 0.1309
2014-05-16 2014-03-31 13F NRG ENERGY COM NEW 629377508 1,171,497 -186,968 -13.76 37,255 -4.51 0.1060
2014-02-14 2013-12-31 13F NRG ENERGY COM NEW 629377508 1,358,465 680,502 100.37 39,015 110.57 0.1186
2013-11-14 2013-09-30 13F NRG ENERGY COM NEW 629377508 677,963 77,664 12.94 18,528 15.60 0.0665
2013-08-22 2013-06-30 13F/A-1 NRG ENERGY COM NEW 629377508 600,299 600,299 16,027 0.0674
2013-08-14 2013-06-30 13F NRG ENERGY COM NEW 629377508 600,299 16,027 0.0676
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.