环球租船美股招股说明书(2025-09-23版)

$150,000,000Depositary SharesEach representing 1/100th of One Share of8.75% SeriesB Cumulative Redeemable Perpetual Preferred Stock(Liquidation Preference: $25.00 per Depositary Share) We have entered into an At Market Issuance Sales Agreement (the “Sales Agreement”) with B. Riley Securities, Inc. and EvercoreGroup L.L.C. (collectively, the “Agents”) on September 23, 2025, under which we may offer and sell, as agent and/or principal, from timeto time, up to $150,000,000 of our Depositary Shares (the “Depositary Shares”), each of which represents 1/100th of one share of our8.75% SeriesB Cumulative Redeemable Perpetual Preferred Stock, par value $0.01 per share, with a liquidation preference of $2,500.00per share (equivalent to $25.00 per Depositary Share) (the “SeriesB Preferred Shares”). The SeriesB Preferred Shares represented by the Depositary Shares will be deposited with Computershare Inc. and ComputershareTrust Company, N.A., as applicable, as depositary. As a holder of a Depositary Share, you will be entitled, through the depositary andsubject to the terms of the deposit agreement governing the Depositary Shares (the “Deposit Agreement”), to proportional rights andpreferences as if you held 1/100th of one SeriesB Preferred Share. Dividends on the SeriesB Preferred Shares underlying the Depositary Shares are cumulative and shall accrue from the DividendPayment Date (as defined below) immediately preceding the issuance date and will be payable quarterly in arrears on the first day ofJanuary, April, July and October of each year (each, a “Dividend Payment Date”), when, as and if declared by our board of directors.Dividends will be payable out of amounts legally available therefor at a rate equal to 8.75% per annum of the stated liquidation preference. We may redeem, at our option, the SeriesB Preferred Shares (and therefore the Depositary Shares) at any time, in whole or in part,out of amounts legally available therefor, at a redemption price of $2,500.00 per share (equivalent to $25.00 per Depositary Share) plus anamount equal to all accumulated and unpaid dividends thereon to the date of redemption, whether or not declared. The Depositary Shares are listed on the New York Stock Exchange (the “NYSE”) under the symbol “GSL-B.” On September 17,2025, the last reported sale price per Depositary Share was $27.93. Sales of the Depositary Shares, if any, under this prospectus supplement and accompanying base prospectus may be made intransactions that are deemed to be “at the market offerings” as defined in Rule415 under the Securities Act. The Agents, individually orcollectively, are not required to sell any specific number or dollaramount of Depositary Shares, but have agreed to use their commerciallyreasonable efforts consistent with their normal trading and sales practices on mutually agreed terms between the Agents and us. See “Planof Distribution” for further information. We previously filed a prospectus supplement, dated December29, 2022, under our prior Registration Statement on FormF-3(FileNo.333-267468) (the “Prior Registration Statement”), providing for the establishment of an “at the market” offering program whichpermitted us, from time to time, to offer and sell up to $150,000,000 of our Depositary Shares pursuant to an At Market Issuance SalesAgreement, dated December29, 2022, with B. Riley Securities, Inc. (the “Prior ATM Program”). The Prior Registration Statement and thePrior ATM Program expired on September16, 2025. We have not sold any Depositary Shares under the Prior ATM Program. Thisprospectus supplement and the Sales Agreement are renewing and replacing the expired Prior ATM Program. The Depositary Shares to which this prospectus supplement and the accompanying base prospectus relate will be offered and soldthrough the Agents over a period of time and from time to time. Under the Sales Agreement, each Agent will be entitled to compensationequal to 2.5% of the gross proceeds from each sale of the Depositary Shares sold through it as our sales agent. In connection with the saleof the Depositary Shares on our behalf, the Agents will be deemed to be “underwriters” within the meaning of the Securities Act, and thecompensation of the Agents will be deemed to be underwriting commissions or discounts. There is no arrangement to place proceeds ofthe offering in escrow, trust or similar arrangement. Investing in our Depositary Shares involves a high degree of risk. Before you make an investment in the Depositary Shares,you should carefully consider the section entitled “Risk Factors” beginning on pageS-10of this prospectus supplement, and otherrisk factors contained in the documents incorporated by reference into this prospectus supplement and the accompanying baseprospectus. Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved ofthese securities or determined if this prospectus supplement or the accompanying base prospectus i