NRG ENERGY, INC. (NRG) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: NRG ENERGY, INC. (NRG) CIK: 0001013871 --- Reporting Owner --- Name: Pruner Alexandra CIK: 0001759034 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock, par value $.01 per share Date: 2026-06-01 | Code: A (Grant or award) Shares: +1,557 | Price: $0.00 Shares Owned After: 32,680 | Ownership: D (Direct) Footnotes: [F1] Represents 1,557 Deferred Stock Units issued to the Reporting Person under NRG Energy, Inc.'s Long-Term Incentive Plan. Each Deferred Stock Unit is equivalent in value to one share of NRG Energy, Inc.'s Common Stock, par value $.01 per share. The Reporting Person will receive from NRG Energy, Inc. one such share of Common Stock for each Deferred Stock Unit they own upon termination of their service on NRG Energy, Inc.'s Board of Directors. [F2] Includes 3,370 Dividend Equivalent Rights. --- Holdings --- [Holding #1] Security: Common Stock, par value $.01 per share Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Represents 1,557 Deferred Stock Units issued to the Reporting Person under NRG Energy, Inc.'s Long-Term Incentive Plan. Each Deferred Stock Unit is equivalent in value to one share of NRG Energy, Inc.'s Common Stock, par value $.01 per share. The Reporting Person will receive from NRG Energy, Inc. one such share of Common Stock for each Deferred Stock Unit they own upon termination of their service on NRG Energy, Inc.'s Board of Directors. F2: Includes 3,370 Dividend Equivalent Rights. --- Signature --- /s/ Christine Zoino, by Power of Attorney (2026-06-03)