Company: EAI
Filing Date: 2025-05-06
Form Type: 424B2
Source: 0001193125-25-113786
Chunk: 1

Company: ENTERGY ARKANSAS, LLC
Filing Date: 2025-05-06
Form: 424B2
Chunk 1
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 prospectus supplement. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

|              |     |     Price to 
    Public(1) |     | Underwriting 
     Discount |     |       Proceeds to 
  Entergy Arkansas 
 (before expenses) |
| Per new bond |     |     100.788% |     |       0.650% |     |          100.138% |
| Total        |     | $302,364,000 |     |   $1,950,000 |     |      $300,414,000 |

| (1) | In addition to the offering price set forth above, each purchaser will pay an amount equal to the interest                                                                               
 accrued on the new bonds from and including December 1, 2024, to but excluding the date they are delivered to that purchaser (which amount will aggregate $7,130,416.67 on May 8, 2025). |

The underwriters expect to deliver the new bonds to purchasers through the book-entry facilities of The Depository Trust Company in New York, New York on or about May 8, 2025. Joint Book-Running Managers

| Regions Securities LLC |     | Stephens Inc. |     | US Bancorp |     | Wells Fargo Securities |

Co-Manager Loop Capital Markets May 5, 2025

This prospectus supplement, the accompanying prospectus and any related free writing prospectus that we file with the Securities and Exchange Commission, or SEC, contain and incorporate by reference information that you should consider when making your investment decision. We have not, and the underwriters have not, authorized anyone else to provide you with different information. You should not assume that the information contained in this prospectus supplement, the accompanying prospectus or the documents incorporated by reference herein or therein is accurate as of any date other than as of the dates of these documents or the dates these documents were filed with the SEC. Our business, financial condition, results of operations and prospects may have changed since these dates. If the information in this prospectus supplement is different from, or inconsistent with, the information in the accompanying prospectus, you should rely on the information contained in this prospectus supplement. We are not, and the underwriters are not, making an offer or sale of the new bonds in any jurisdiction where