Nrg Energy

=== SEC Form 3 — Statement of Changes in Beneficial Ownership === Document Type: 3 Period of Report: 2026-08-06 --- Issuer --- Name: NRG ENERGY, INC. (NRG) CIK: 0001013871 --- Reporting Owner --- Name: Hart Scott Barton CIK: 0002149050 Role: Officer (EVP, President of NRG Business) --- Holdings --- [Holding #1] Security: Common Stock, par value $.01 per share Ownership: D (Direct) Footnotes: [F1] Includes 3,988 Restricted Stock Units (RSUs) issued by NRG Energy, Inc. under NRG Energy, Inc.'s Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01. Includes 92 Dividend Equivalent Rights (DERs). Each DER is the economic equivalent to one share of NRG Common Stock. [Holding #2] Security: Common Stock, par value $.01 per share Ownership: I (Indirect) [Holding #3] Security: Relative Performance Stock Units Ownership: D (Direct) Footnotes: [F2] On January 2, 2024, the Reporting Person was issued 6,051 RPSUs by NRG under the LTIP that vest on January 2, 2027, subject to certain performance conditions. [Holding #4] Security: Relative Performance Stock Units Ownership: D (Direct) Footnotes: [F3] On January 2, 2025, the Reporting Person was issued 3,462 RPSUs by NRG under the LTIP that vest on January 2, 2028, subject to certain performance conditions. [Holding #5] Security: Relative Performance Stock Units Ownership: D (Direct) Footnotes: [F4] On January 2, 2026, the Reporting Person was issued 2,310 RPSUs by NRG under the LTIP that vest on January 2, 2029, subject to certain performance conditions. [Holding #6] Security: Relative Performance Stock Units Ownership: D (Direct) Footnotes: [F5] On June 15, 2026, the Reporting Person was issued 4,141 RPSUs by NRG under the LTIP that vest on June 15, 2029, subject to certain performance conditions. --- Footnotes (Complete Index) --- F1: Includes 3,988 Restricted Stock Units (RSUs) issued by NRG Energy, Inc. under NRG Energy, Inc.'s Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01. Includes 92 Dividend Equivalent Rights (DERs). Each DER is the economic equivalent to one share of NRG Common Stock. F2: On January 2, 2024, the Reporting Person was issued 6,051 RPSUs by NRG under the LTIP that vest on January 2, 2027, subject to certain performance conditions. F3: On January 2, 2025, the Reporting Person was issued 3,462 RPSUs by NRG under the LTIP that vest on January 2, 2028, subject to certain performance conditions. F4: On January 2, 2026, the Reporting Person was issued 2,310 RPSUs by NRG under the LTIP that vest on January 2, 2029, subject to certain performance conditions. F5: On June 15, 2026, the Reporting Person was issued 4,141 RPSUs by NRG under the LTIP that vest on June 15, 2029, subject to certain performance conditions. --- Signature --- /s/ Christine Zoino, by Power of Attorney (2026-08-13)