Company: EAI
Filing Date: 2025-08-06
Form Type: S-3ASR
Source: 0001193125-25-174487
Chunk: 32

Company: ENTERGY ARKANSAS, LLC
Filing Date: 2025-08-06
Form: S-3ASR
Chunk 32
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 any related open borrowings of securities. The third party in such sale transactions will be an underwriter and will be identified in the applicable prospectus supplement.

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We may make sales of our common stock to or through one or more underwriters, dealers or agents in “at
the market” offerings, and, if we engage in such transactions, we will do so pursuant to the terms of an agreement between us and the underwriters, dealers or agents. If we engage in at the market sales pursuant to a distribution or similar
agreement, we will issue and sell shares of our common stock to or through one or more underwriters or agents, which may act on an agency basis or on a principal basis.

We may have agreements to indemnify agents, underwriters and dealers against, or to contribute to payments which the underwriters, dealers and agents may be
required to make in respect of, certain civil liabilities, including liabilities under the Securities Act.

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EXPERTS

The financial statements and the related financial statement schedule of Entergy Corporation incorporated by reference in this Prospectus, and the
effectiveness of Entergy Corporation’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports. Such financial statements and
financial statement schedule are incorporated by reference in reliance upon the reports of such firm, given their authority as experts in accounting and auditing.

LEGALITY

The
legality of the securities and certain legal matters with respect to the offering of the securities will be passed upon for us by Morgan, Lewis & Bockius LLP, New York, New York. Certain legal matters with respect to the offering of
the securities will be passed upon for any underwriters, dealers or agents by Pillsbury Winthrop Shaw Pittman LLP, New York, New York. Pillsbury Winthrop Shaw Pittman LLP from time to time represents certain of our affiliates in connection with
various matters.

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PROSPECTUS FIRST MORTGAGE BONDS ENTERGY ARKANSAS, LLC 425 West Capitol Avenue Little Rock, Arkansas 72201 Telephone (501) 377-4000 We -

| • |     | may periodically offer our first mortgage bonds in one or more series; and |

| • |     | will determine the price and other terms of each series of first mortgage bonds when sold, including whether any 
 series will be subject to redemption prior to maturity.                                                          |

The First Mortgage Bonds -

| •