Jefferies Financial Group Inc美股招股说明书(2026-08-18版)

Prospectus Supplement dated May 11, 2026and Prospectus dated May 11, 2026) $3,181,000JefferiesJefferies Financial Group Inc.Senior Autocallable Barrier Notes due August 19, 2030Linked to the Worst-Performing of the Dow Jones Industrial Average®and the Nasdaq-100 Index®The Senior Autocallable Barrier Notes due August 19, 2030 Linked to the Worst-Performing of the Dow Jones Industrial Average®and the Nasdaq-100 Index®(the “Notes”) are seniorunsecured obligations of Jefferies Financial Group Inc. The Notes have the terms described in the accompanying product supplement, prospectus supplement and prospectus, assupplemented or modified by this pricing supplement. The Notes are issued as part of our Series A Global Medium-Term Notes program.All payments are subject to our credit risk. If we default on our obligations, you could lose some or a significant portion of your investment. These Notes are not securedobligations and you will not have any security interest in, or otherwise have any access to, any Underlying or the securities represented by any Underlying.SUMMARY OF TERMSIssuer:Jefferies Financial Group Inc.Title of the Notes:Senior Autocallable Barrier Notes due August 19, 2030 Linked to the Worst-Performing of the Dow Jones Industrial Average®and the Nasdaq-100 Index®Aggregate Principal Amount:$3,181,000. We may increase the Aggregate Principal Amount prior to the Original Issue Date but are not required to do so.Issue Price:$1,000 per NoteStated Principal Amount:$1,000 per NotePricing Date:August 14, 2026Original Issue Date:August 19, 2026 (3 Business Days after the Pricing Date)Call Observation Dates:Annually, beginning on August 16, 2027, as set forth on page PS-2. The Call Observation Dates are subject to postponement as described in theaccompanying product supplement.Call Payment Dates:As set forth on page PS-2. The Call Payment Dates may be postponed if the related Call Observation Date is postponed as described in the accompanyingproduct supplement.Valuation Date:August 14, 2030 (which is also the final Call Observation Date), subject to postponement as described in the accompanying product supplement.Maturity Date:August 19, 2030, which may be postponed if the Valuation Date is postponed as described in the accompanying product supplement.Underlying:The worst-performing of the Dow Jones Industrial Average®(the “INDU”) and the Nasdaq-100 Index®(the “NDX”). Please see “The Underlyings” below.Worst-PerformingUnderlying:The Underlying with the lowest Observation Value or Final Value, as applicable, as compared to its Initial Value.Call Feature:Autocallable Notes. The Notes will be automatically called if the Observation Value of the Worst-Performing Underlying on any Call Observation Date(beginning approximately one year after the Pricing Date) is equal to or greater than its Call Value. If your Notes are called, you will receive the applicableCall Payment on the applicable Call Payment Date, and no further amounts will be payable on the Notes.Call Payment:The Stated Principal Amount plus the applicable Call Premium.Call Premium:The Call Premium applicable to each Call Observation Date is set forth on page PS-2 and reflects a return of approximately 14.00% per annum. The Notesare “Snowball Coupon Notes” for purposes of the accompanying product supplement and, for purposes of this pricing supplement, references in theaccompanying product supplement to “Snowball Coupon Payment” shall be deemed to refer to “Call Premium”.Payment at Maturity:If the Notes are not called prior to maturity and the Final Value of the Worst-Performing Underlying is 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 AmountIf the Notes are not called prior to maturity and the Final Value of the Worst-Performing Underlying is less than its Threshold Value, you will receivefor each Note that you hold a Payment at Maturity that is less than the Stated Principal Amount of each Note that will equal:In this scenario the Payment at Maturity will be less than the Stated Principal Amount and you could lose some or all of your investment.Initial Value:53,732.41 with respect to the INDU; and 30,046.14 with respect to the NDXObservation Value:With respect to each Underlying, the Index Closing Value of the Underlying on the applicable Call Observation Date.Final Value:With respect to each Underlying, the Index Closing Value of the Underlying on the Valuation Date.Call Value:53,732.41 with respect to the INDU (100% of its Initial Value); and 30,046.14 with respect to the NDX (100% of its Initial Value)Threshold Value:37,612.69 with respect to the INDU (70% of its Initial Value, rounded to two decimal places); and 21,032.30 with respect to the NDX (70% of its Initial Value,rounded to two decimal places)Specified Currency:U.S. dollarsCUSIP/ISIN:47234KBT0 / US47234KBT07Book-entry or CertificatedNote:Book-entryBusiness Day:New YorkAgent:Jefferies L