X0508 4 2025-06-05 0001013871 NRG ENERGY, INC. NRG 0002048902 Kinney Virginia 804 CARNEGIE CENTER PRINCETON NJ 08540 1 Exec VP, Chief Admin Officer 0 Common Stock, par value $.01 per share 2025-06-05 4 F 0 686.0000 156.0300 D 65624.0000 D On June 5, 2023, the Reporting Person was issued 4,982 RSUs by NRG under the LTIP. On June 5, 2025, 1,659 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 686 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. In connection with the vesting of the RSUs, 84 DERs vested, resulting in the Reporting Person holding 935 DERs in the aggregate. Christine Zoino, by Power of Attorney 2025-06-09