Jefferies Financial Group Inc. 美股招股说明书（2026年3月20日版）

Prospectus Supplement dated May 12, 2023and Prospectus dated May 12, 2023) $1,119,000Jefferies Jefferies Financial Group Inc.Senior Autocallable Contingent Coupon Barrier Notes due March 23, 2028 Linked to the Worst-Performing of the Common Stock of Antero Resources Corporation, the Common Stock of ConocoPhillips and the Common Stock ofOccidental Petroleum Corporation The Senior Autocallable Contingent Coupon Barrier Notes due March 23, 2028 Linked to the Worst-Performing of the Common Stock of Antero Resources Corporation, the Common Stockof ConocoPhillips and the Common Stock of Occidental Petroleum Corporation (the “Notes”) are senior unsecured obligations of Jefferies Financial Group Inc. The Notes have the termsdescribed in the accompanying product supplement, prospectus supplement and prospectus, as supplemented or modified by this pricing supplement. The Notes are issued as part of ourSeries 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.SUMMARY OF TERMS Jefferies Financial Group Inc.Senior Autocallable Contingent Coupon Barrier Notes due March 23, 2028 Linked to the Worst-Performing of the Common Stock of AnteroResources Corporation, the Common Stock of ConocoPhillips and the Common Stock of Occidental Petroleum Corporation$1,119,000. 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 NoteMarch 18, 2026March 23, 2026 (3 Business Days after the Pricing Date)Quarterly, beginning on June 18, 2026, as set forth on page PS-2. The Coupon Observation Dates are subject to postponement as described inthe accompanying product supplement.As set forth on page PS-2. The Coupon Payment Dates may be postponed if the related Coupon Observation Date is postponed as described inthe accompanying product supplement.Quarterly, beginning on September 18, 2026, as set forth on page PS-2. The Call Observation Dates are subject to postponement as described Issuer:Title of the Notes: Aggregate Principal Amount:Issue Price:Stated Principal Amount:Pricing Date:Original Issue Date:Coupon Observation Dates: Coupon Payment Dates: Call Observation Dates: 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. Call Payment Dates: Valuation Date:Maturity Date:Underlying: March 23, 2028, which may be postponed if the Valuation Date is postponed as described in the accompanying product supplement.The worst-performing of the common stock of Antero Resources Corporation (NYSE symbol: “AR”), the common stock of ConocoPhillips (NYSEsymbol: “COP”) and the common stock of Occidental Petroleum Corporation (NYSE symbol: “OXY”) (each an “Underlying Company” andcollectively, the “Underlying Companies”). Please see “The Underlyings” below. Worst-Performing Underlying:Coupon Feature: Contingent Coupon Payments. The Notes will pay a Contingent Coupon Payment of $39.50 on the applicable Coupon Payment Date if theObservation Value of the Worst-Performing Underlying on the applicable quarterly Coupon Observation Date is greater than or equal to itsCoupon Barrier. Autocallable Notes. The Notes will be automatically called if the Observation Value of the Worst-Performing Underlying on any Call ObservationDate (beginning approximately six months after the Pricing Date) is equal to or greater than its Call Value. If your Notes are called, you willreceive the Call Payment on the applicable Call Payment Date, and no further amounts will be payable on the Notes. Call Feature: Call Payment:Payment at Maturity: The Stated Principal Amount plus any Contingent Coupon Payment that may otherwise be due on the applicable Call Payment Date.If the Final Value of the Worst-Performing Underlying is greater than or equal to its Threshold Value, you will receive for each Note thatyou hold a Payment at Maturity that is equal to the Stated Principal Amount 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 onthe final Coupon Observation Date is greater than or equal to its Coupon Barrier. Initial Value:Observation Value: With respect to each Underlying, the Share Closing Price of the Underlyingtimesits Adjustment Factor on the applicable Coupon ObservationDate or Call Observation Date. Final Value:Coupon Barrier: With respect to each Underlying, the Share Closing Price of the Underlyingtimesits Adjustment Factor on the Valuation D