Jefferies Financial Group Inc 美股招股说明书（2026年2月27日版）

PRICING SUPPLEMENT(to Product Supplement no. 5, dated October 23, 2023, Prospectus Supplement dated May 12, 2023and Prospectus dated May 12, 2023) $10,330,000Jefferies Jefferies Financial Group Inc.Senior Autocallable Contingent Coupon Barrier Notes due February 27, 2032 Linked to the Worst-Performing of the Nasdaq-100 Index®, the Russell 2000® Coupon Payment Dates: Call Observation Dates: Monthly, beginning on February 25, 2027, as set forth on page PS-2. The Call Observation Dates are subject to postponement as described in theaccompanying 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 accompanyingproduct supplement. Call Payment Dates: February 25, 2032, subject to postponement as described in the accompanying product supplement.February 27, 2032, which may be postponed if the Valuation Date is postponed as described in the accompanying product supplement. The worst-performing of the Nasdaq-100 Index®(the “NDX”), the Russell 2000®Index (the “RTY”) and the EURO STOXX 50®Index (the “SX5E”). Please see “The Underlyings” below. Worst-Performing Underlying:The Underlying with the lowest Observation Value or Final Value, as applicable, as compared to its Initial Value.Coupon Feature: Call Feature: Call Payment:Payment at Maturity: 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 atMaturity 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.The Payment at Maturity will also include the final Contingent Coupon Payment if the Observation Value of the Worst-Performing Underlying on the finalCoupon Observation Date is greater than or equal to its Coupon Barrier. Initial Value:Observation Value:Final Value:Coupon Barrier: 25,329.04 with respect to the NDX; 2,663.329 with respect to the RTY; and 6,173.32 with respect to the SX5E With respect to each Underlying, the Index Closing Value of the Underlying on the applicable Coupon Observation Date or Call Observation Date.With respect to each Underlying, the Index Closing Value of the Underlying on the Valuation Date. 18,996.78 with respect to the NDX (75% of its Initial Value, rounded to two decimal places); 1,997.497 with respect to the RTY (75% of its Initial Value, rounded to three decimal places); and 4,629.99 with respect to the SX5E (75% of its Initial Value, rounded to two decimal places)25,329.04 with respect to the NDX (100% of its Initial Value); 2,663.329 with respect to the RTY (100% of its Initial Value); and 6,173.32 with respect to theSX5E (100% of its Initial Value) Call Value: Threshold 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.The Bank of New York Mellon 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 accordancewith the requirements of Rule 5121. See “Conflict of Interest.” Jefferies Pricing supplement dated February 25, 2026.You should read this pricing supplement together with the related product supplement, prospectus and prospectus supplement, each of which can be accessed via the hyperlinks below,before you decide to invest. You should rely only on the information contained in or incorporated by reference in this pricing supplement and theaccompanying product supplement, prospectus and prospectus supplement. We have not authorized anyone to provide youwith different information. We are not making an offer of these securities in any state where the offer is not permitted. You Table of Contents SPECIAL NOTE ON FORWARD-LOOKING STATEMENTS This pricing supplement and the accompanying product supplement, prospectus and prospectus supplement contain or incorporate byreference “forward-looking statements” within the meaning of the safe harbor provisions of Section 27A of the Securities Act of 1933(the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934. These forward-looking statements are not statements ofhistorical fact and represent only our belief as of the date such statements are made. There are a variety of factors, many of which arebeyond our control, which affect our operations, performance, business strategy and results and could cause actual reported resultsand performance to differ materially from the performance and expectations expressed in these forward-looking statements. Thesefactors include, but are