X0609 4 2026-06-05 0001013871 NRG ENERGY, INC. NRG 0001940921 Chung Bruce false 804 CARNEGIE CENTER PRINCETON NJ 08540 1 EVP & CFO 0 Common Stock, par value $.01 per share 2026-06-05 4 M 0 22328.0000 0.0000 A 101591.0000 D Common Stock, par value $.01 per share 2026-06-05 4 M 0 1410.0000 129.2000 A 103001.0000 D Common Stock, par value $.01 per share 2026-06-05 4 F 0 1267.0000 129.2000 D 101734.0000 D Common Stock, par value $.01 per share 2026-06-05 4 F 0 12142.0000 129.2000 D 89592.0000 D Dividend Equivalent Rights 0.0000 2026-06-05 4 M 0 1410.0000 129.2000 A 2026-06-05 2026-06-05 Common Stock, par value $.01 per share 1410.0000 1410.0000 D Relative Performance Stock Units 0.0000 2026-06-05 4 M 0 22328.0000 129.2000 D 2026-06-05 2026-06-05 Common Stock, par value $.01 per share 22328.0000 0.0000 D The Reporting Person was issued 22,328 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. In connection with the vesting of the RPSUs described above, an incremental 1,410 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 6,975 RSUs by NRG under the NRG Energy, Inc. Long-Term Incentive Plan. On June 5, 2026, 2,330 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 1,267 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. In connection with the vesting of the RSUs, 147 DERs vested, resulting in the Reporting Person holding 378 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 12,142 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. Christine Zoino, by Power of Attorney 2026-06-09