杰弗里斯金融集团股份有限公司美股招股说明书(2025-10-31版)

Prospectus Supplement dated May 12, 2023 and Prospectus dated May 12, 2023) $15,000Jefferies Jefferies Financial Group Inc.Senior Leveraged Barrier Notes due October 31, 2030 Linked to the Worst-Performing of the S&P 500®Index and the Dow Jones Industrial Average® The Senior Leveraged Barrier Notes due October 31, 2030 Linked to the Worst-Performing of the S&P 500®Index and the Dow Jones Industrial Average® (the “Notes”) aresenior unsecured obligations of Jefferies Financial Group Inc.The Notes will pay no interest and have the terms described in the accompanying product supplement,prospectus supplement and prospectus, as supplemented or modified by this pricing supplement.At maturity, if the Worst-Performing Underlying hasappreciatedin value,investors will receive the Stated Principal Amount of their investment plus 110.00% of the upside performance of the Worst-Performing Underlying.If the Worst-PerformingUnderlying hasdepreciatedin value, but the Worst-Performing Underlying has not declined below its Threshold Value, investors will receive the Stated Principal Amount.However, if the Worst-Performing Underlying has declined below its Threshold Value, investors will lose 1% of the Stated Principal Amount for every 1% decline in the FinalValue of the Worst-Performing Underlying from its Initial Value.Investors may lose up to 100% of the Stated Principal Amount of the Notes.The Notes are issued as part ofour Series A Global Medium-Term Notes program. Aggregate Principal Amount:Issue Price:Stated Principal AmountPricing Date:Original Issue Date:Valuation Date: October 31, 2025 (2 Business Days after the Pricing Date)October 29, 2030, subject to postponement as described in the accompanying product supplement. For purposes of the accompanying product supplement, the occurrence of a Market Disruption Event or non-Index Business Day as to any Underlyingwill not impact any other Underlying that is not so affected.October 31, 2030, which may be postponed if the Valuation Date is postponed as described in the accompanying product Maturity Date: supplement.The worst-performing of the S&P 500®Index (the “SPX”) and the Dow Jones Industrial Average® (the “INDU”).Please see “The Underlyings” below.The Underlying with the lowest Underlying Return. Underlying: Worst-Performing Underlying:Payment at Maturity: If the Final Value of the Worst-Performing Underlying is greater than its Initial Value, you will receive for each Note that you hold a Payment at Maturity equal to:Stated Principal Amount × (1+ Participation Rate × Underlying Return of the Worst-Performing Underlying).If the Final Value of the Worst-Performing Underlying is less than or equal to its Initial Value but greater than or equal to its Threshold Value, you will receive for each Note that you hold a Payment at Maturity that is equal to the Stated Principal Amount If the Final Value of the Worst-Performing Underlying is less than its Threshold Value, you will receive for each Note that you hold a Payment at Maturity that is less than the Stated Principal Amount of each Note that will equal:Stated Principal Amount × (1+ Underlying Return of the Worst-Performing Underlying). In this scenario the Payment at Maturity will be less than the Stated Principal Amount you could lose a significant portion or all ofyour investment.110.00% Initial Value:Final Value:Threshold Value: With respect to each Underlying, the Index Closing Value of the Underlying on the Valuation Date.4,134.35 with respect to the SPX (60% of its Initial Value, rounded to two decimal places); 28,579.20 with respect to the INDU Redemption:Specified Currency:CUSIP/ISIN:Book-entry or Certificated Note:Business DayAgent:Calculation Agent:Trustee:Estimated value on the Pricing Date:Use of Proceeds:Listing:Conflict of Interest: The Notes will be our senior unsecured obligations and will rank equally with our other senior unsecured indebtedness.Investing in the Notes involves risks that are described in the“Risk Factors”section beginning on page PS-4 of this pricing supplement. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this pricingsupplement or the accompanying product supplement, prospectus or prospectus supplement is truthful or complete.Any representation to the contrary is a criminal offense.As used in this pricing supplement,“we,”“us”and“our”refer to Jefferies Financial Group Inc., unless the context requires otherwise.We will deliver the Notes in book-entry form only through The Depository Trust Company on or about October 31, 2025 against payment in immediately available funds. JefferiesPricing supplement dated October 29, 2025.You should read this pricing supplement together with the related product supplement, prospectus and prospectus supplement, each of which can be accessedvia the hyperlinks below, before you decide to invest.Product Supplement no. 1 dated May 18