X0609 4 2026-06-05 0001013871 NRG ENERGY, INC. NRG 0002048902 Kinney Virginia false 804 CARNEGIE CENTER PRINCETON NJ 08540 1 Exec VP, Chief Admin Officer 0 Common Stock, par value $.01 per share 2026-06-05 4 M 0 15948.0000 0 A 71473.0000 D Common Stock, par value $.01 per share 2026-06-05 4 M 0 1007.0000 129.2000 A 72480.0000 D Common Stock, par value $.01 per share 2026-06-05 4 F 0 697.0000 129.2000 D 71783.0000 D Common Stock, par value $.01 per share 2026-06-05 4 F 0 6672.0000 129.2000 D 65111.0000 D Dividend Equivalent Rights 0.0000 2026-06-05 4 M 0 1007.0000 129.2000 A 2026-06-05 2026-06-05 Common Stock, par value $.01 per share 1007.0000 1007.0000 D Relative Performance Stock Units 2026-06-05 4 M 0 15948.0000 129.2000 D 2026-06-05 2026-06-05 Common Stock, par value $.01 per share 15948.0000 0.0000 D The Reporting Person was issued 15,948 Relative Performance Stock Units by NRG Energy, Inc. under NRG's Long-Term Incentive Plan that vested subject to certain performance conditions on June 5, 2026. Unit Price is $0.00 In connection with the vesting of the RPSUs described above, an incremental 1,007 Dividend Equivalent Rights vested. Each DER is the economic equivalent of one share of Common Stock. On June 5, 2023, the Reporting Person was issued 4,982 RSUs by NRG under the NRG Energy, Inc. Long-Term Incentive Plan. On June 5, 2026, 1,664 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of Common Stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 697 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. In connection with the vesting of the RSUs, 105 DERs vested, resulting in the Reporting Person holding 167 DERs in the aggregate. The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of Common Stock for RPSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 6,672 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. The Conversion Price is $0.00 Christine Zoino, by Power of Attorney 2026-06-09