安特吉美股招股说明书(2026-05-06版)

19,247,788 Shares Common Stock The forward sellers referred to below are offering 19,247,788shares of our common stock, par value $.01 per share. We have entered into forward sale agreements with each of WellsFargo Bank, National Association, Citibank, N.A., Barclays Bank PLC and The Bank of Nova Scotia, whom we refer to in such capacity as the “forward purchasers,” with respect to anaggregate of 19,247,788shares of our common stock. In connection with these forward sale agreements, the forward purchasers or their affiliates and/or agents, whom we refer to in suchcapacity as the “forward sellers,” at our request, are borrowing from third parties and selling to the underwriters an aggregate of 19,247,788shares of our common stock. If in the good faith,commercially reasonable judgment of a forward purchaser, it or its affiliate is unable to borrow and deliver for sale on the anticipated closing date a number of shares of our common stockunderlying its forward sale agreement, or it or its affiliate would be unable to borrow, at a stock loan rate not greater than a specified rate, and deliver for sale on the anticipated closing datesuch number of shares of our common stock, or if certain other conditions to such forward purchaser’s or its affiliate’s obligations have not been satisfied, then we will issue and sell directlyto the underwriters a number of shares of our common stock equal to the number of shares that such forward seller does not borrow and deliver. We will not initially receive any proceeds from the sale of our common stock sold by the forward sellers to the underwriters, except in certain circumstances described in thisprospectus supplement, including the last sentence of the previous paragraph. Each forward sale agreement provides for settlement on a settlement date or dates to be specified at ourdiscretion on or prior to April30, 2028. If we elect to cash settle all or a portion of the forward sale agreements, we may not receive any proceeds from such election, and we may owe cash toone or more of the forward purchasers. If we elect to net share settle all or a portion of the forward sale agreements, we will not receive any cash proceeds from such election, and we mayowe shares of our common stock to one or more of the forward purchasers. Our common stock is listed on the New York Stock Exchange, or NYSE, and NYSE Texas, Inc., or NYSE Texas, in each case, under the symbol “ETR.” On May5, 2026, the lastreported sale price of our common stock on the NYSE was $117.36 per share. Investing in our common stock involves risks. See “Risk Factors” beginning on page S-7 of this prospectus supplement to read about factorsyou should consider before buying our common stock. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy ofthis prospectus supplement or the accompanying prospectus. Any representation to the contrary is a criminal offense. Public offering priceUnderwriting discount Proceeds to Entergy Corporation, before expenses(1) (1)We expect to receive net proceeds, before expenses, from the sale of our common stock of approximately $2.132billion ($2.451billion if the underwriters’ option to purchaseadditional shares of our common stock is exercised in full, as described in detail below) upon full physical settlement of the forward sale agreements, which we expect to occur on orprior to April30, 2028. For purposes of calculating the estimated net proceeds to us, we have assumed that the forward sale agreements are fully physically settled based on the initialforward sale price of $110.74 per share, which is equal to the public offering price per share less the underwriting discount shown above. The forward sale price is subject toadjustment pursuant to the forward sale agreements, and the actual proceeds, if any, will be calculated as described in this prospectus supplement. Although we expect to settle theforward sale agreements entirely by the full physical delivery of shares of our common stock to the forward purchasers in exchange for cash proceeds, we may elect cash settlement ornet share settlement for all or a portion of our obligations under one or more forward sale agreements, in which case we may receive no cash proceeds or substantially less cashproceeds than is reflected in the above table upon settlement, or we may be required to deliver cash or shares of our common stock to the forward purchasers. See “Underwriting(Conflicts of Interest)—Forward Sale Agreements” for a description of the forward sale agreements. We have granted the underwriters an option for a period of 30days from the date of this prospectus supplement to purchase up to an additional 2,887,168shares of our common stockat a price of $110.74 per share. If such option is exercised, we may, in our sole discretion, enter into additional forward sale agreements with each of the forward purchasers in