X0508 4 2024-01-02 0001013871 NRG ENERGY, INC. NRG 0001734640 Curci Brian 804 CARNEGIE CENTER PRINCETON NJ 08540 1 Exec VP & General Counsel 0 Common Stock, par value $.01 per share 2024-01-02 4 M 0 15022.0000 51.2500 A 85949.0000 D Common Stock, par value $.01 per share 2024-01-02 4 A 0 11955.0000 0.0000 A 97904.0000 D Common Stock, par value $.01 per share 2024-01-02 4 M 0 1724.0000 51.2500 A 99628.0000 D Common Stock, par value $.01 per share 2024-01-02 4 F 0 653.0000 0.0000 D 98975.0000 D Common Stock, par value $.01 per share 2024-01-02 4 F 0 996.0000 0.0000 D 97979.0000 D Common Stock, par value $.01 per share 2024-01-02 4 F 0 1777.0000 0.0000 D 96202.0000 D Common Stock, par value $.01 per share 2024-01-02 4 F 0 5450.0000 51.2500 D 90752.0000 D Dividend Equivalent Rights 2024-01-02 4 M 0 1724.0000 51.2500 D 2024-01-02 2024-01-02 Common Stock, par value $.01 per share 1724.0000 0.0000 D Relative Performance Stock Units 0.0000 2024-01-02 4 M 0 15022.0000 51.2500 D 2024-01-02 2024-01-02 Common Stock, par value $.01 per share 15022.0000 0.0000 D The Reporting Person was issued 15,022 Relative Performance Stock Units by NRG Energy, Inc. under the Amended and Restated Long-Term Incentive Plan that vested subject to certain performance conditions on January 2, 2024. Represents Restricted Stock Units issued to the Reporting Person under the LTIP. Each RSU is equivalent in value to one share of Common Stock, par value $.01 per share. The Reporting Person will receive from NRG one such share of Common Stock for each RSU that will vest ratably over a three-year period beginning on the first anniversary date of the grant. In connection with the vesting of the RPSUs described above, an incremental 1,724 Dividend Equivalent Rights vested. Each DER is the economic equivalent of one share of Common Stock. On January 2, 2021, the Reporting Person was issued 5,358 RSUs by NRG under the LTIP. On January 2, 2024, 1,790 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 653 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. In connection with the vesting of the RSUs, 205 DERs vested, resulting in the Reporting Person holding 1,328 DERs in the aggregate. On January 2, 2022, the Reporting Person was issued 9,575 RSUs by NRG under the LTIP. On January 2, 2024, 3,188 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 996 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. In connection with the vesting of the RSUs, 251 DERs vested, resulting in the Reporting Person holding 1,077 DERs in the aggregate. On January 2, 2023, the Reporting Person was issued 18,693 RSUs by NRG under the LTIP. On January 2, 2024, 6,224 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 1,777 shares of Common Stock to satisfy the Reporting Person's tax withholding obligation. In connection with the vesting of the RSUs, 256 DERs vested, resulting in the Reporting Person holding 821 DERs in the aggregate. The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of Common Stock for Relative Performance Stock Units having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 5,450 shares of Common Stock to satisfy their tax withholding obligation. Conversion price not applicable Christine Zoino, by Power of Attorney 2024-01-05