X0508 4 2023-12-15 0001013871 NRG ENERGY, INC. NRG 0001272898 COBEN LAWRENCE S 804 CARNEGIE CENTER PRINCETON NJ 08540 1 1 Interim Pres & CEO 0 Common Stock, par value $.01 per share 2023-12-15 4 A 0 244565.0000 0.0000 A 407158.0000 D Represents Restricted Stock Units, which will vest in three equal installments on each anniversary of the grant date. The total amount of Restricted Stock Units delivered will be prorated for the time the Reporting Person spent in the role of Interim President and CEO, measured from November 17, 2023 to the date on which the Reporting Person steps down as Interim President and CEO. Christine Zoino, by Power of Attorney 2023-12-19