Jefferies Financial Group Inc. 美国股票招股说明书（2025年5月13日版）

Prospectus Supplement dated May 12,2023 and Prospectus dated May 12, 2023) $1,070,000Jefferies Jefferies Financial Group Inc.Senior Autocallable Contingent Coupon (With Memory) BarrierNotes due May 12, 2028 Aggregate Principal Amount:Issue Price:Stated Principal AmountPricing Date:Original Issue Date:Coupon Observation Dates: Coupon Payment Dates: As set forth on page PS-2. The Coupon Payment Dates may be postponed if the related Coupon Observation Date is postponed as described in theaccompanying product supplement. Call Observation Dates: Call Payment Dates: Valuation Date:Maturity Date:Underlying: May 9, 2028, subject to postponement as described in the accompanying product supplement.May 12, 2028, which may be postponed if the Valuation Date is postponed as described in the accompanying product supplement. The worst-performing of the SPDR® S&P Bank ETF (the “KBE”), the VanEck® Semiconductor ETF (the “SMH”) and the Energy Select Sector SPDR® Worst-Performing Underlying:Coupon Feature: The Underlying with the lowest Observation Value or Final Value, as applicable, as compared to its Initial ValueContingent Coupon Payments (with Memory). The Notes will pay a Contingent Coupon Payment (with Memory) on the applicable Coupon Payment Date if the Observation Value of the Worst-Performing Underlying on the applicable monthly Coupon Observation Date is greater than or equal to its CouponBarrier. The Contingent Coupon Payment (with Memory) payable on any Coupon Payment Date will be calculated according to the following formula: (i)theproductof the Contingent Coupon Payment (with Memory) applicable to a single Coupon Payment Date and the number of Coupon Payment Datesthat have occurred up to the relevant Coupon Payment Date (inclusive of the relevant Coupon Payment Date)minus(ii) thesumof all Contingent 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 CallPayment on the applicable Call Payment Date, and no further amounts will be payable on the Notes.The Stated Principal Amountplusany Contingent Coupon Payment (with Memory) that may otherwise be due on the applicable Call Payment Date. Call Payment:Payment at Maturity: If 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 holda 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 atMaturity that is less than the Stated Principal Amount of each Note that will equal: Initial Value:Observation Value: With respect to each Underlying, the ETF Closing Price of the Underlyingtimesthe Adjustment Factor on the applicable Coupon Observation Date or Final Value:Coupon Barrier: Call Value: Threshold Value: $36.87 with respect to the KBE (70% of its Initial Value, rounded to two decimal places); $156.38 with respect to the SMH (70% of its Initial Value); and$57.70 with respect to the XLE (70% of its Initial Value, rounded to two decimal places)Initially 1.0 with respect to each Underlying, subject to adjustment for certain events affecting the Underlyings. See “—Antidilution Adjustments for Adjustment Factor: 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: $964.40 per Note.Please see “The Notes” below.General corporate purposes 1 An affiliate of the Issuer will pay a structuring fee of up to $8.00 per Note in connection with the distribution of the Notes to other registered broker-dealers.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 book-entry form only through The Depository Trust Company on or about May 14, 2025 against payment in immediately available funds. Pricing supplement dated May 9, 2025.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. Product Supplement no. 5 dated October 23, 2023Prospectus supplement dated May 12, 2023 and Prospectus dated May 12, 2023 You should rely only on the information contained in or incor