Jefferies Financial Group Inc美股招股说明书(2026-07-21版)

Prospectus Supplement dated May 11, 2026and Prospectus dated May 11, 2026) $1,453,000Jefferies Jefferies Financial Group Inc.Senior Autocallable Notes due July 22, 2030Linked to the Worst-Performing of the Russell 2000®Index and the S&P 500®IndexThe Senior Autocallable Notes due July 22, 2030 Linked to the Worst-Performing of the Russell 2000®Index and the S&P 500®Index (the “Notes”) are senior unsecured obligations of Jefferies Financial Group Inc. The Notes have the terms described in the accompanying product supplement, prospectus supplement and prospectus, as supplemented or modified by thispricing 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 secured obligations 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 TERMS Senior Autocallable Notes due July 22, 2030 Linked to the Worst-Performing of the Russell 2000®Index and the S&P 500®Index$1,453,000. We may increase the Aggregate Principal Amount prior to the Original Issue Date but are not required to do so. $1,000 per Note$1,000 per Note July 17, 2026July 22, 2026 (3 Business Days after the Pricing Date) Call Observation Dates:Annually, beginning on July 19, 2027, as set forth on page PS-2. The Call Observation Dates are subject to postponement as described in the accompanying product supplement.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 accompanying product supplement.July 17, 2030 (which is also the final Call Observation Date), subject to postponement as described in the accompanying product supplement. Valuation Date:Maturity Date:Underlying:Worst-PerformingUnderlying:Call Feature: Autocallable Notes. The Notes will be automatically called if the Observation Value of the Worst-Performing Underlying on any Call Observation Date (beginningapproximately one year after the Pricing Date) is equal to or greater than its Call Value. If your Notes are called, you will receive the applicable Call Payment onthe applicable Call Payment Date, and no further amounts will be payable on the Notes.The Stated Principal Amount plus the applicable Call Premium. The Call Premium applicable to each Call Observation Date is set forth on page PS-2 and reflects a return of approximately 11.25% per annum. The Notes are“Snowball Coupon Notes” for purposes of the accompanying product supplement and, for purposes of this pricing supplement, references in the accompanyingproduct supplement to “Snowball Coupon Payment” shall be deemed to refer to “Call Premium”.If the Notes are not called prior to maturity,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: Initial Value:Observation Value:Final Value:Call Value: With respect to each Underlying, the Index Closing Value of the Underlying on the applicable Call Observation Date.With respect to each Underlying, the Index Closing Value of the Underlying on the Valuation Date. 2,962.217 with respect to the RTY (100% of its Initial Value); and 7,457.69 with respect to the SPX (100% of its Initial Value)With respect to the final Call Observation Date:2,221.663 with respect to the RTY (75% of its Initial Value, rounded to three decimal places); and 5,593.27 with respect to the SPX (75% of its Initial Value, Jefferies LLC, a wholly-owned subsidiary of Jefferies Financial Group Inc. See “Supplemental Plan of Distribution.”Jefferies Financial Services, Inc., a wholly owned subsidiary of Jefferies Financial Group Inc. Jefferies LLC, the broker-dealer subsidiary of Jefferies Financial Group Inc., is a member of FINRA and will participate in the distribution of the notes beingoffered hereby. Accordingly, the offering is subject to the provisions of FINRA Rule 5121 relating to conflicts of interest and will be conducted in accordance withthe requirements of Rule 5121. See “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 pricing supplement or theaccompanying 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 boo