NRG Energy, Inc.
MX ˙ BMV ˙ US6293775085
SecurityMX:NRG / NRG Energy, Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership492,790 shares
Latest Disclosed Value $ 72,016,331
Assenagon Asset Management S.A. reports 6.39% increase in ownership of NRG / NRG Energy, Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 492,790 shares of NRG Energy, Inc. (MX:NRG) valued at $72,016,331 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 463,213 shares of NRG Energy, Inc.. This represents a change in shares of 6.39% 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)
2026-04-20 2026-03-31 13F NRG ENERGY COM NEW 629377508 492,790 29,577 6.39 72,016 -2.37 0.1093
2026-01-09 2025-12-31 13F NRG ENERGY COM NEW 629377508 463,213 -285,729 -38.15 73,762 -39.19 0.1015
2025-10-07 2025-09-30 13F NRG ENERGY COM NEW 629377508 748,942 -357,961 -32.34 121,291 -31.76 0.1659
2025-07-11 2025-06-30 13F NRG ENERGY COM NEW 629377508 1,106,903 -333,734 -23.17 177,746 29.25 0.2639
2025-04-15 2025-03-31 13F NRG ENERGY COM NEW 629377508 1,440,637 -116,713 -7.49 137,523 -2.12 0.2294
2025-01-14 2024-12-31 13F NRG ENERGY COM NEW 629377508 1,557,350 1,417,057 1,010.07 140,504 999.41 0.2266
2024-10-23 2024-09-30 13F NRG ENERGY COM NEW 629377508 140,293 -1,456,391 -91.21 12,781 -89.72 0.0235
2024-07-18 2024-06-30 13F NRG ENERGY COM NEW 629377508 1,596,684 633,765 65.82 124,318 90.73 0.2767
2024-04-24 2024-03-31 13F NRG ENERGY COM NEW 629377508 962,919 432,080 81.40 65,180 137.50 0.1543
2024-01-17 2023-12-31 13F NRG ENERGY COM NEW 629377508 530,839 -1,756,101 -76.79 27,444 -68.85 0.0728
2023-11-06 2023-09-30 13F NRG ENERGY COM NEW 629377508 2,286,940 -626,937 -21.52 88,093 -19.14 0.2727
2023-07-25 2023-06-30 13F NRG ENERGY COM NEW 629377508 2,913,877 2,913,877 108,950 0.3769
2023-04-18 2023-03-31 13F NRG ENERGY COM NEW 629377508 0 -651,460 -100.00 0 -100.00
2023-01-12 2022-12-31 13F NRG ENERGY COM NEW 629377508 651,460 651,460 21 0.0748
2022-10-27 2022-09-30 13F NRG ENERGY COM NEW 629377508 0 -415,512 -100.00 0 -100.00
2022-07-27 2022-06-30 13F NRG ENERGY COM NEW 629377508 415,512 344,159 482.33 15,860 479.47 0.0588
2022-04-25 2022-03-31 13F NRG ENERGY COM NEW 629377508 71,353 71,353 2,737 0.0076
2022-02-01 2021-12-31 13F NRG ENERGY COM NEW 629377508 0 -389,934 -100.00 0 -100.00
2021-10-19 2021-09-30 13F NRG ENERGY COM NEW 629377508 389,934 51,696 15.28 15,921 16.80 0.0509
2021-07-15 2021-06-30 13F NRG ENERGY COM NEW 629377508 338,238 1,999 0.59 13,631 7.45 0.0463
2021-04-26 2021-03-31 13F NRG ENERGY COM NEW 629377508 336,239 -192,531 -36.41 12,686 -36.11 0.0515
2021-02-01 2020-12-31 13F NRG ENERGY COM NEW 629377508 528,770 99,025 23.04 19,855 50.30 0.0865
2020-10-07 2020-09-30 13F NRG ENERGY COM NEW 629377508 429,745 263,770 158.92 13,210 144.45 0.0741
2020-07-21 2020-06-30 13F NRG ENERGY COM NEW 629377508 165,975 -55,889 -25.19 5,404 -10.65 0.0347
2020-04-17 2020-03-31 13F NRG ENERGY COM NEW 629377508 221,864 221,864 6,048 0.0484
2019-10-16 2019-09-30 13F NRG ENERGY COM NEW 629377508 0 -203,869 -100.00 0 -100.00
2019-08-12 2019-06-30 13F NRG ENERGY COM NEW 629377508 203,869 -16,356 -7.43 7,160 -23.46 0.0538
2019-04-26 2019-03-31 13F NRG ENERGY COM NEW 629377508 220,225 172,218 358.74 9,355 392.11 0.0878
2019-01-23 2018-12-31 13F NRG ENERGY COM NEW 629377508 48,007 48,007 1,901 0.0215
2018-10-29 2018-09-30 13F NRG ENERGY COM NEW 629377508 0 -1,727,368 -100.00 0 -100.00
2018-07-17 2018-06-30 13F NRG ENERGY COM NEW 629377508 1,727,368 1,727,368 53,030 0.6121
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.