[424B5] Jefferies Financial Group Inc. Prospectus Supplement (Debt Securities)

(Neutral)

Form Type

424B5

Rhea-AI Filing Summary

Jefferies Financial Group Inc. is offering Auto-Callable, NASDAQ-100 Index-linked securities with a $1,000 face amount per security and an original offering price of $1,000. The securities pay no interest or dividends and may be automatically called on one of four call dates; each call pays the face amount plus a fixed call premium that accrues at approximately 8.20% per annum on a simple (non-compounding) basis. If not called, the maturity payoff depends on the Index level on the final calculation day: investors are protected for declines up to a 10% buffer, but face 1-to-1 downside beyond that and could lose up to 90% of face amount.

The pricing date was September 30, 2025, issue date October 3, 2025, and Jefferies estimates the securities' value on the pricing date at $966.00 per security, reflecting issuance, structuring and hedging costs borne by investors. All payments are subject to Jefferies' credit risk. The supplement includes tax, model-valuation, market‑making and index‑maintenance disclosures and summarizes preliminary Jefferies fiscal Q3 2025 results including $224 million net income for the quarter (preliminary).

Insights

Auto-call feature caps upside at fixed premiums while offering a 10% downside buffer.

The securities provide fixed capped returns through sequential call premiums of 8.20% p.a. (simple) that accumulate by call date: 8.20%, 16.40%, 24.60%, 32.80%. This design limits positive payoff to the applicable call premium even if the NASDAQ-100 appreciates substantially.

The protective feature is a 10% buffer at maturity: if the Index declines by more than 10% from the starting level, holders suffer 1-to-1 losses beyond the buffer, up to a 90% loss of face amount. These are material payoff drivers and define the security's risk/return profile.

Investor economics reflect issuer credit and upfront costs: estimated value is below offering price.

Jefferies estimates a pricing-date value of $966.00 per $1,000 security, indicating that issuance and hedging costs (~$34) are borne by investors. Secondary market prices may be lower due to credit spread, bid-offer, and unwind costs.

All payments are subject to Jefferies' credit risk and the calculation agent is a Jefferies subsidiary with discretionary determinations, which may present conflicts of interest that could affect payouts.

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Accepted by SEC EDGAR 10/02/2025 - 05:06 PM

Filed Pursuant to Rule 424(b)(5)

Registration No. 333-271881

PRICING SUPPLEMENT dated September 30, 2025

(To Product Supplement No. 2 dated June 30, 2023

Prospectus Supplement dated May 12, 2023

and Prospectus dated May 12, 2023)

	Jefferies Financial Group Inc. Medium-Term Notes, Series A Equity Index Linked Securities
	Market Linked Securities— Auto-Callable with Fixed Percentage Buffered Downside Principal at Risk Securities Linked to the NASDAQ-100 Index^®due October 4, 2029

■ Linked to the NASDAQ-100 Index^®

■ Unlike ordinary debt securities, the securities do not pay interest, do not repay a fixed amount of principal at maturity and are subject to potential automatic call upon the terms described below. Whether the securities are automatically called for a fixed call premium or, if not automatically called, the maturity payment amount, will depend, in each case, on the closing level of the Index on the applicable call date

■ Automatic Call. If the closing level of the Index on any call date is greater than or equal to the starting level, the securities will be automatically called for the face amount plus the call premium applicable to that call date. The call premium applicable to each call date will be a percentage of the face amount that increases for each call date based on a simple (non-compounding) return of approximately 8.20% per annum

	Call Date	Call Premium*
	October 5, 2026	8.20% of the face amount
	October 4, 2027	16.40% of the face amount
	October 3, 2028	24.60% of the face amount
	October 1, 2029 (the “final calculation day”)	32.80% of the face amount

■ Maturity Payment Amount. If the securities are not automatically called, you will receive a maturity payment amount that could be equal to or less than the face amount per security depending on the closing level of the Index on the final calculation day as follows:

■ If the closing level of the Index on the final calculation day is less than the starting level, but not by more than the buffer amount of 10%, you will receive the face amount

■ If the closing level of the Index on the final calculation day is less than the starting level by more than the buffer amount, you will receive less than the face amount and have 1-to-1 downside exposure to the decrease in the level of the Index in excess of the buffer amount

■ Investors may lose up to 90% of the face amount

■ Any positive return on the securities will be limited to the applicable call premium, even if the closing level of the Index on the applicable call date significantly exceeds the starting level. You will not participate in any appreciation of the Index beyond the applicable fixed call premium

■ All payments on the securities are subject to our credit risk, and you will have no ability to pursue any securities included in the Index for payment; if we default on our obligations under the securities, you could lose some or all of your investment

■ No periodic interest payments or dividends

■ No exchange listing; designed to be held to maturity

We estimate that the value of each security on the pricing date is $966.00 per security. See “Estimated Value of the Securities” in this pricing supplement.

The securities have complex features and investing in the securities involves risks not associated with an investment in conventional debt securities. See “Selected Risk Considerations” beginning on page PRS-9 herein and “Risk Factors” beginning on page PS-5 of the accompanying product supplement.

The securities are senior unsecured obligations of Jefferies Financial Group Inc. and, accordingly, all payments are subject to our credit risk. If we default on our obligations under the securities, you could lose some or all of your investment. The securities are not savings accounts, deposits or other obligations of a depository institution and are not insured by the Federal Deposit Insurance Corporation, the Deposit Insurance Fund or any other governmental agency.

Neither the Securities and Exchange Commission nor any state securities commission or other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy of this pricing supplement or the accompanying product supplement, prospectus supplement and prospectus. Any representation to the contrary is a criminal offense.

	Original Offering Price	Agent Discount⁽¹⁾⁽²⁾	Proceeds to the Issuer

Per Security	$1,000.00	$25.75	$974.25
Total	$7,035,000.00	$181,151.25	$6,853,848.75

⁽¹⁾	Jefferies LLC and Wells Fargo Securities, LLC are the agents for the distribution of the securities and are acting as principal. See “Terms of the Securities—Agents” and “Estimated Value of the Securities” in this pricing supplement for further information.

⁽²⁾

In respect of certain securities sold in this offering, Jefferies LLC, the broker-dealer subsidiary of Jefferies Financial Group Inc., may pay a fee of up to $2.00 per security to selected securities dealers in consideration for marketing and other services in connection with the distribution of the securities to other securities dealers.

Jefferies

Wells Fargo Securities

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Terms of the Securities

	Issuer:		Jefferies Financial Group Inc.
	Market Measure:		NASDAQ-100 Index^® (the “Index”).
	Pricing Date :		September 30, 2025.
	Issue Date :		October 3, 2025
	Original Offering Price:		$1,000 per security.
	Face Amount:		$1,000 per security. References in this pricing supplement to a “security” are to a security with a face amount of $1,000.
	Automatic Call:		If the closing level of the Index on any call date is greater than or equal to the starting level, the securities will be automatically called, and on the related call settlement date you will be entitled to receive a cash payment per security in U.S. dollars equal to the face amount per security plus the call premium applicable to the relevant call date. The last call date is the final calculation day, and payment upon an automatic call on the final calculation day, if applicable, will be made on the stated maturity date. Any positive return on the securities will be limited to the applicable call premium, even if the closing level of the Index on the applicable call date significantly exceeds the starting level. You will not participate in any appreciation of the Index beyond the applicable call premium. If the securities are automatically called, they will cease to be outstanding on the related call settlement date and you will have no further rights under the securities after such call settlement date. You will not receive any notice from us if the securities are automatically called. The call premium applicable to each call date will be a percentage of the face amount that increases for each call date based on a simple (non-compounding) return of approximately 8.20% per annum. The call premium and payment per security upon an automatic call that is applicable to each call date are the amounts specified in the table below.

Call Dates and Call Premiums:	Call Date	Call Premium	Payment per Security upon an Automatic Call
	October 5, 2026	8.20% of the face amount	$1,082.00
	October 4, 2027	16.40% of the face amount	$1,164.00
	October 3, 2028	24.60% of the face amount	$1,246.00
	October 1, 2029	32.80% of the face amount	$1,328.00
	We refer to October 1, 2029 as the “final calculation day.”
	The call dates are subject to postponement as described below in “—Market Disruption Events and Postponement Provisions”.

Call Settlement

Date:

Three business days after the applicable call date (as each such call date may be postponed as described below in “—Market Disruption Events and Postponement Provisions”, if applicable); provided that the call settlement date for the last call date is the stated maturity date.

PRS-2

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

	Maturity Payment Amount:		If the securities are not automatically called, then on the stated maturity date, you will be entitled to receive a cash payment per security in U.S. dollars equal to the maturity payment amount. The “maturity payment amount” per security will equal: • if the ending level is less than the starting level, but greater than or equal to the threshold level: $1,000; or • if the ending level is less than the threshold level: $1,000 + [$1,000 × (index return + buffer amount)]
	Maturity Payment Amount:		If the securities are not automatically called and the ending level is less than the threshold level, you will have 1-to-1 downside exposure to the decrease in the level of the Index in excess of the buffer amount and will lose some, and possibly up to 90%, of the face amount of your securities at maturity.
	Stated Maturity Date :		October 4, 2029, subject to postponement. The securities are not subject to repayment at the option of any holder of the securities prior to the stated maturity date.
	Starting Level:		24,679.99, the closing level of the Index on the pricing date.
	Closing Level:		Closing level has the meaning set forth under “General Terms of the Securities—Certain Terms for Securities Linked to an Index—Certain Definitions” in the accompanying product supplement.
	Ending Level:		The “ending level” will be the closing level of the Index on the final calculation day.
	Threshold Level:		22,211.991, which is equal to 90% of the starting level.
	Buffer Amount:		10%.
	Index Return:		The “index return” is the percentage change from the starting level to the ending level, measured as follows: ending level – starting level starting level
	Market Disruption Events and Postponement Provisions:		Each call date (including the final calculation day) is subject to postponement due to non-trading days and the occurrence of a market disruption event. In addition, the stated maturity date will be postponed if the final calculation day is postponed and will be adjusted for non-business days. For more information regarding adjustments to the call dates and the stated maturity date, see “General Terms of the Securities—Consequences of a Market Disruption Event; Postponement of a Calculation Day—Securities Linked to a Single Market Measure” and “—Payment Dates” in the accompanying product supplement. For purposes of the accompanying product supplement, each call date (including the final calculation day) is a “calculation day” and each call settlement date (including the stated maturity date) is a “payment date.” In addition, for information regarding the circumstances that may result in a market disruption event, see “General Terms of the Securities—Certain Terms for Securities Linked to an Index—Market Disruption Events” in the accompanying product supplement.
	Calculation Agent:		Jefferies Financial Services Inc. (“JFSI”), a wholly owned subsidiary of Jefferies Financial Group Inc.
	Material Tax Consequences:		For a discussion of the material U.S. federal income and certain estate tax consequences of the ownership and disposition of the securities, see “Supplemental Discussion of U.S. Federal Income Tax Consequences.”

PRS-3

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

	Agents:		Jefferies LLC and Wells Fargo Securities, LLC (“WFS”) are the agents for the distribution of the securities. The agents will receive an agent discount of up to $25.75 per security. The agents may resell the securities to other securities dealers at the original offering price of the securities less a concession not in excess of $20.00 per security. Such securities dealers may include Wells Fargo Advisors (“WFA”) (the trade name of the retail brokerage business of WFS’s affiliates, Wells Fargo Clearing Services, LLC and Wells Fargo Advisors Financial Network, LLC). In addition to the concession allowed to WFA, WFS may pay $0.75 per security of the underwriting discount to WFA as a distribution expense fee for each security sold by WFA. In addition, in respect of certain securities sold in this offering, Jefferies LLC may pay a fee of up to $2.00 per security to selected securities dealers in consideration for marketing and other services in connection with the distribution of the securities to other securities dealers. The agents and/or one or more of their respective affiliates expects to realize hedging profits projected by their proprietary pricing models to the extent they assume the risks inherent in hedging our obligations under the securities. If the agents or any other dealer participating in the distribution of the securities or any of their affiliates conduct hedging activities for us in connection with the securities, that dealer or its affiliates will expect to realize a profit projected by its proprietary pricing models from those hedging activities. Any such projected profit will be in addition to any discount, concession or fee received in connection with the sale of the securities to you.
	Denominations:		$1,000 and any integral multiple of $1,000.
	CUSIP:		47233YMU6

PRS-4

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Additional Information about the Issuer and the Securities

You should read this pricing supplement together with product supplement No. 2 dated June 30, 2023, the prospectus supplement dated May 12, 2023 and the prospectus dated May 12, 2023 for additional information about the securities. Information included in this pricing supplement supersedes information in the product supplement, prospectus supplement and prospectus to the extent it is different from that information. Certain defined terms used but not defined herein have the meanings set forth in the product supplement, prospectus supplement or prospectus.

As used in this pricing supplement, “we,” “us” and “our” refer to Jefferies Financial Group Inc., unless the context requires otherwise.

You may access the product supplement, prospectus supplement and prospectus on the SEC website www.sec.gov as follows (or if such address has changed, by reviewing our filing for the relevant date on the SEC website):

•	Product Supplement No. 2 dated June 30, 2023:

https://www.sec.gov/Archives/edgar/data/96223/000114036123032428/brhc20055267_424b2.htm

•	Prospectus Supplement dated May 12, 2023 and Prospectus dated May 12, 2023:

https://www.sec.gov/Archives/edgar/data/96223/000114036123024421/ny20009069x3_424b2.htm

PRS-5

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Estimated Value of the Securities

The face amount of each security is $1,000. The original issue price will equal 100% of the face amount per security. This price includes costs associated with issuing, selling, structuring and hedging the securities, which are borne by you, and, consequently, the estimated value of the securities on the pricing date is less than the original offering price. We estimate that the value of each security on the pricing date is $966.00 per security.

Valuation of the Securities

Jefferies LLC calculated the estimated value of the securities set forth on the cover page of this pricing supplement based on its proprietary pricing models at that time. Jefferies LLC’s proprietary pricing models generated an estimated value for the securities by estimating the value of a hypothetical package of financial instruments that would replicate the payout on the securities, which consists of a fixed-income bond (the “bond component”) and one or more derivative instruments underlying the economic terms of the securities (the “derivative component”). In calculating the estimated value of the derivative component, Jefferies LLC estimated future cash flows based on a proprietary derivative-pricing model that is in turn based on various inputs, including the factors described under “Selected Risk Considerations—The estimated value of the securities was determined for us by our subsidiary using proprietary pricing models” below. These inputs may be market-observable or may be based on assumptions made by Jefferies LLC in its discretionary judgment. Estimated cash flows on the bond and derivative components were discounted using a discount rate based on our internal funding rate.

The estimated value of the securities is a function of the terms of the securities and the inputs to Jefferies LLC’s proprietary pricing models.

Since the estimated value of the securities is a function of the underlying assumptions and construction of Jefferies LLC’s proprietary derivative-pricing model, modification to this model will impact the estimated value calculation. Jefferies LLC’s proprietary models are subject to ongoing review and modification, and Jefferies LLC may change them at any time and for a variety of reasons. In the event of a model change, prior descriptions of the model and computations based on the older model will be superseded, and calculations of estimated value under the new model may differ significantly from those under the older model. Further, model changes may cause a larger impact on the estimated value of a note with a particular return formula than on a similar note with a different return formula. For example, to the extent a return formula contains leverage, model changes may cause a larger impact on the estimated value of that note than on a similar note without such leverage.

WFS has advised us that if it, WFA or any of their affiliates makes a secondary market in the securities at any time up to the issue date or during the 5-month period following the issue date, the secondary market price offered by it, WFA or any of their affiliates will be increased by an amount reflecting a portion of the costs associated with selling, structuring and hedging the securities that are included in their original offering price. Because this portion of the costs is not fully deducted upon issuance, WFS has advised us that any secondary market price it, WFA or any of their affiliates offers during this period will be higher than it otherwise would be after this period, as any secondary market price offered after this period will reflect the full deduction of the costs as described above. WFS has advised us that the amount of this increase in the secondary market price will decline steadily to zero over this 5-month period.

The relationship between the estimated value on the pricing date and the secondary market price of the securities

The price at which the agents or any of their respective affiliates purchase the securities in the secondary market, absent changes in market conditions, including those related to interest rates and the Market Measure, may vary from, and be lower than, the estimated value on the pricing date, because the secondary market price takes into account our secondary market credit spread as well as a bid-offer spread that would be charged in a secondary market transaction of this type, the costs of unwinding the related hedging transactions and other factors.

The agents and/or their respective affiliates may, but are not obligated to, make a market in the securities and, if it once chooses to make a market, may cease doing so at any time.

PRS-6

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Investor Considerations

The securities are not appropriate for all investors. The securities may be an appropriate investment for investors who:

■	believe that the closing level of the Index will be greater than or equal to the starting level on one of the call dates;

■	seek the potential for a fixed return if the Index has appreciated at all as of any of the call dates in lieu of full participation in any potential appreciation of the Index;

■	are willing to accept the risk that, if the closing level of the Index is less than the starting level on each call date, they will not receive any positive return on their investment in the securities;

■	desire to limit downside exposure to the Index through the buffer amount;

■	are willing to accept the risk that, if the securities are not automatically called and the ending level is less than the starting level by more than the buffer amount, they will lose some, and possibly up to 90%, of the face amount per security at maturity;

■	understand that the term of the securities may be as short as approximately one year and that they will not receive a higher call premium payable with respect to a later call date if the securities are called on an earlier call date;

■	are willing to forgo interest payments on the securities and dividends on the securities included in the Index; and

■	are willing to hold the securities until maturity.

The securities may not be an appropriate investment for investors who:

■	seek a liquid investment or are unable or unwilling to hold the securities to maturity;

■	believe that the closing level of the Index will be less than the starting level on each call date;

■	seek a security with a fixed term;

■	are unwilling to accept the risk that, if the closing level of the Index is less than the starting level on each call date, they will not receive any positive return on their investment in the securities;

■	are unwilling to accept the risk that the ending level of the Index may decrease from the starting level by more than the buffer amount;

■	seek exposure to the upside performance of the Index beyond the applicable call premiums;

■	seek full return of the face amount of the securities at stated maturity;

■	are unwilling to purchase securities with an estimated value as of the pricing date that is lower than the original offering price;

■	seek current income;

■	are unwilling to accept the risk of exposure to the Index;

■	seek exposure to the Index but are unwilling to accept the risk/return trade-offs inherent in the maturity payment amount for the securities;

■	are unwilling to accept our credit risk, to obtain exposure to the Index generally, or to the exposure to the Index that the securities provide specifically; or

■	prefer the lower risk of fixed income investments with comparable maturities issued by companies with comparable credit ratings.

The considerations identified above are not exhaustive. Whether or not the securities are an appropriate investment for you will depend on your individual circumstances, and you should reach an investment decision only after you and your investment, legal, tax, accounting and other advisors have carefully considered the appropriateness of an investment in the securities in light of your particular circumstances. You should also review carefully the “Selected Risk Considerations” herein and the “Risk Factors” in the accompanying product supplement for risks related to an investment in the securities. For more information about the Index, please see the section titled “The NASDAQ-100 Index^®” below.

PRS-7

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Determining Timing and Amount of Payment on the Securities

Whether the securities are automatically called on any call date for the applicable call premium will each be determined based on the closing level of the Index on the applicable call date as follows:

If the securities have not been automatically called, then on the stated maturity date, you will receive a cash payment per security (the maturity payment amount) calculated as follows:

PRS-8

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Selected Risk Considerations

The securities have complex features and investing in the securities will involve risks not associated with an investment in conventional debt securities. Some of the risks that apply to an investment in the securities are summarized below, but we urge you to read the more detailed explanation of the risks relating to the securities generally in the “Risk Factors” section of the accompanying product supplement. You should reach an investment decision only after you have carefully considered with your advisors the appropriateness of an investment in the securities in light of your particular circumstances.

Risks Relating To The Securities Generally

If The Securities Are Not Automatically Called And The Ending Level Is Less Than The Threshold Level, You Will Lose Some, And Possibly Up To 90%, Of The Face Amount Of Your Securities At Maturity.

We will not repay you a fixed amount on the securities on the stated maturity date. If the closing level of the Index is less than the starting level on each call date, the securities will not be automatically called, and you will receive a maturity payment amount that will be equal to or less than the face amount, depending on the ending level (i.e., the closing level of the Index on the final calculation day).

If the securities are not automatically called and the ending level is less than the threshold level, the maturity payment amount will be less than the face amount and you will have 1-to-1 downside exposure to the decrease in the level of the Index in excess of the buffer amount, resulting in a loss of 1% of the face amount for every 1% decline in the Index in excess of the buffer amount. The threshold level is 90% of the starting level. As a result, if the ending level is less than the threshold level, you will lose some, and possibly up to 90%, of the face amount per security at maturity. This is the case even if the level of the Index is greater than or equal to the starting level or the threshold level at certain times during the term of the securities.

If the securities are not automatically called, your return on the securities will be zero or negative, and therefore will be less than the return you would earn if you bought a traditional interest-bearing debt security of ours or another issuer with a similar credit rating with the same stated maturity date.

No Periodic Interest Will Be Paid On The Securities.

No periodic payments of interest will be made on the securities.

The Potential Return On The Securities Is Limited To The Call Premium.

The potential return on the securities is limited to the applicable call premium, regardless of the performance of the Index. The Index may appreciate by significantly more than the percentage represented by the applicable call premium from the pricing date through the applicable call date, in which case an investment in the securities will underperform a hypothetical alternative investment providing a 1-to-1 return based on the performance of the Index. Furthermore, if the securities are called on an earlier call date, you will receive a lower call premium than if the securities were called on a later call date, and accordingly, if the securities are called on one of the earlier call dates, you will not receive the highest potential call premium.

The Securities Are Subject To A Potential Automatic Call, Which Would Limit Your Ability To Receive Further Payment On The Securities.

The securities are subject to a potential automatic call. If your securities are automatically called early, the term of the securities may be reduced to as short as approximately one year. The securities will be automatically called if, on any call date, the closing level of the Index is greater than or equal to the starting level. If the securities are automatically called, you will be entitled to receive the face amount and the applicable call premium with respect to the applicable call date, and no further amounts will be payable with respect to the securities. In this case, you will lose the opportunity to receive payment of any higher call premium that otherwise would be payable after the date of the automatic call. If the securities are called, you may be unable to invest in other securities with a similar level of risk that could provide a return that is similar to the securities.

A Call Settlement Date Or The Stated Maturity Date May Be Postponed If A Call Date Is Postponed.

A call date (including the final calculation day) will be postponed if the applicable originally scheduled call date is not a trading day or if the calculation agent determines that a market disruption event has occurred or is continuing on that call date. If such a postponement occurs with respect to a call date other than the final calculation day, then the related call settlement date will be postponed. If such a postponement occurs with respect to the final calculation day, the stated maturity date will be the later of (i) the initial stated maturity date and (ii) three business days after the final calculation day as postponed.

The Tax Consequences Of An Investment In Your Securities Are Uncertain.

The tax consequences of an investment in your securities are uncertain, both as to the timing and character of any inclusion in income in respect of your securities.

The Internal Revenue Service (“IRS”) announced on December 7, 2007 that it is considering issuing guidance regarding the tax treatment of an instrument such as your securities, and any such guidance could adversely affect the value and the tax treatment of your securities. Among other things, the IRS may decide to require the holders to accrue ordinary income on a current basis and recognize ordinary income on payment at maturity, and could subject non-U.S. investors to withholding tax. Furthermore, in 2007, legislation was introduced in Congress that, if enacted, would have required holders that acquired instruments such as your securities after the bill

PRS-9

Market Linked Securities— Auto-Callable with Fixed Percentage

Buffered Downside

Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

was enacted to accrue interest income over the term of such instruments even though there will be no interest payments over the term of such instruments. It is not possible to predict whether a similar or identical bill will be enacted in the future, or whether any such bill would affect the tax treatment of your securities. We describe these developments in more detail under “Supplemental Discussion of U.S. Federal Income Tax Consequences – U.S. Holders – Possible Change in Law” below. You should consult your tax advisor about this matter. Except to the extent otherwise provided by law, we intend to continue treating the securities for U.S. federal income tax purposes in accordance with the treatment described under “Supplemental Discussion of U.S. Federal Income Tax Consequences” below unless and until such time as Congress, the Treasury Department or the IRS determine that some other treatment is more appropriate. Please also consult your tax advisor concerning the U.S. federal income tax and any other applicable tax consequences to you of owning your securities in your particular circumstances.

Risks Relating To An Investment In Our Debt Securities, Including The Securities

The Securities Are Subject To Our Credit Risk.

The securities are our obligations and are not, either directly or indirectly, an obligation of any other third party. Any amounts payable under the securities are subject to our creditworthiness and you will have no ability to pursue any securities included in the Index for payment. As a result, our actual and perceived creditworthiness may affect the value of the securities and, in the event we were to default on our obligations under the securities, you may not receive any amounts owed to you under the terms of the securities.

Risks Relating To The Estimated Value Of The Securities And Any Secondary Market

The Estimated Value Of The Securities On The Pricing Date, Based On Jefferies LLC Proprietary Pricing Models At That Time And Our Internal Funding Rate, Will Be Less Than The Original Offering Price.

The difference is attributable to certain costs associated with selling, structuring and hedging the securities that are included in the original offering price. These costs include (i) the selling concessions paid in connection with the offering of the securities, (ii) hedging and other costs incurred by us and our subsidiaries in connection with the offering of the securities and (iii) the expected profit (which may be more or less than actual profit) to Jefferies LLC or other of our subsidiaries in connection with hedging our obligations under the securities. These costs adversely affect the economic terms of the securities because, if they were lower, the economic terms of the securities would be more favorable to you. The economic terms of the securities are also likely to be adversely affected by the use of our internal funding rate, rather than our secondary market rate, to price the securities. See “The estimated value of the securities would be lower if it were calculated based on our secondary market rate” below.

The Estimated Value Of The Securities Was Determined For Us By Our Subsidiary Using Proprietary Pricing Models.

Jefferies LLC derived the estimated value disclosed on the cover page of this pricing supplement from its proprietary pricing models at that time. In doing so, it may have made discretionary judgments about the inputs to its models, such as the volatility of the Market Measure. Jefferies LLC’s views on these inputs and assumptions may differ from your or others’ views, and as an agent in this offering, Jefferies LLC’s interests may conflict with yours. Both the models and the inputs to the models may prove to be wrong and therefore not an accurate reflection of the value of the securities. Moreover, the estimated value of the securities set forth on the cover page of this pricing supplement may differ from the value that we or our subsidiaries may determine for the securities for other purposes, including for accounting purposes. You should not invest in the securities because of the estimated value of the securities. Instead, you should be willing to hold the securities to maturity irrespective of the initial estimated value.

Since the estimated value of the securities is a function of the underlying assumptions and construction of Jefferies LLC’s proprietary derivative-pricing model, modifications to this model will impact the estimated value calculation. Jefferies LLC’s proprietary models are subject to ongoing review and modification, and Jefferies LLC may change them at any time and for a variety of reasons. In the event of a model change, prior descriptions of the model and computations based on the older model will be superseded, and calculations of estimated value under the new model may differ significantly from those under the older model. Further, model changes may cause a larger impact on the estimated value of a note with a particular return formula than on a similar note with a different return formula. For example, to the extent a return formula contains leverage, model changes may cause a larger impact on the estimated value of that note than on a similar note without such leverage.

The Estimated Value Of The Securities Would Be Lower If It Were Calculated Based On Our Secondary Market Rate.

The estimated value of the securities included in this pricing supplement is calculated based on our internal funding rate, which is the rate at which we are willing to borrow funds through the issuance of the securities. Our internal funding rate is generally lower than our secondary market rate, which is the rate that Jefferies LLC will use in determining the value of the securities for purposes of any purchases of the securities from you in the secondary market. If the estimated value included in this pricing supplement were based on our secondary market rate, rather than our internal funding rate, it would likely be lower. We determine our internal funding rate based on factors such as the costs associated with the securities, which are generally higher than the costs associated with conventional debt securities, and our liquidity needs and preferences. Our internal funding rate is not the same as the interest that is payable on the securities.

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Because there is not an active market for traded instruments referencing our outstanding debt obligations, Jefferies LLC determines our secondary market rate based on the market price of traded instruments referencing our debt obligations, but subject to adjustments that Jefferies LLC makes in its sole discretion. As a result, our secondary market rate is not a market-determined measure of our creditworthiness, but rather reflects the market’s perception of our creditworthiness as adjusted for discretionary factors such as Jefferies LLC’s preferences with respect to purchasing the securities prior to maturity.

The Estimated Value Of The Securities Is Not An Indication Of The Price, If Any, At Which WFS, Jefferies LLC Or Any Other Person May Be Willing To Buy The Securities From You In The Secondary Market.

Any such secondary market price will fluctuate over the term of the securities based on the market and other factors described in the next risk factor. In addition, any secondary market price for the securities will be reduced by a bid-ask spread, which may vary depending on the aggregate stated principal amount of the securities to be purchased in the secondary market transaction, and the expected cost of unwinding related hedging transactions. As a result, it is likely that any secondary market price for the securities will be less than the original offering price.

WFS has advised us that if it, WFA or any of their affiliates makes a secondary market in the securities at any time, the secondary market price offered by it, WFA or any of their affiliates will be affected by changes in market conditions and other factors described in the next risk factor. WFS has advised us that if it, WFA or any of their affiliates makes a secondary market in the securities at any time up to the issue date or during the 5-month period following the issue date, the secondary market price offered by it, WFA or any of their affiliates will be increased by an amount reflecting a portion of the costs associated with selling, structuring and hedging the securities that are included in their original offering price. Because this portion of the costs is not fully deducted upon issuance, WFS has advised us that any secondary market price it, WFA or any of their affiliates offers during this period will be higher than it otherwise would be after this period, as any secondary market price offered after this period will reflect the full deduction of the costs as described above. WFS has advised us that the amount of this increase in the secondary market price will decline steadily to zero over this 5-month period. WFS has advised us that, if you hold the securities through an account with WFS, WFA or any of their affiliates, WFS expects that this increase will also be reflected in the value indicated for the securities on your brokerage account statement. If you hold your securities through an account at a broker-dealer other than WFS, WFA or any of their affiliates, the value of the securities on your brokerage account statement may be different than if you held your securities at WFS, WFA or any of their affiliates.

The Value Of The Securities Prior To Stated Maturity Will Be Affected By Numerous Factors, Some Of Which Are Related In Complex Ways.

The value of the securities prior to stated maturity will be affected by the then-current level of the Index, interest rates at that time and a number of other factors, some of which are interrelated in complex ways. The effect of any one factor may be offset or magnified by the effect of another factor. The following factors, which we refer to as the “derivative component factors,” and which are described in more detail in the accompanying product supplement, are expected to affect the value of the securities: Index performance; interest rates; volatility of the Index; time remaining to maturity; and dividend yields on securities included in the Index. When we refer to the “value” of your security, we mean the value you could receive for your security if you are able to sell it in the open market before the stated maturity date.

In addition to the derivative component factors, the value of the securities will be affected by actual or anticipated changes in our creditworthiness. The value of the securities will also be limited by the automatic call feature because if the securities are automatically called, the return will not be greater than the applicable call premium. You should understand that the impact of one of the factors specified above, such as a change in interest rates, may offset some or all of any change in the value of the securities attributable to another factor, such as a change in the level of the Index. Because numerous factors are expected to affect the value of the securities, changes in the level of the Index may not result in a comparable change in the value of the securities.

The Securities Will Not Be Listed On Any Securities Exchange And We Do Not Expect A Trading Market For The Securities To Develop.

The securities will not be listed or displayed on any securities exchange or any automated quotation system. Although the agents and/or their respective affiliates may purchase the securities from holders, they are not obligated to do so and are not required to make a market for the securities. There can be no assurance that a secondary market will develop. Because we do not expect that any market makers will participate in a secondary market for the securities, the price at which you may be able to sell your securities is likely to depend on the price, if any, at which the agents are willing to buy your securities. If a secondary market does exist, it may be limited. Accordingly, there may be a limited number of buyers if you decide to sell your securities prior to stated maturity. This may affect the price you receive upon such sale. Consequently, you should be willing to hold the securities to stated maturity.

Risks Relating To The Index

Any Payments On The Securities And Whether The Securities Are Automatically Called Will Depend Upon The Performance Of The Index And Therefore The Securities Are Subject To The Following Risks, Each As Discussed In More Detail In The Accompanying Product Supplement.

•

Investing In The Securities Is Not The Same As Investing In The Index. Investing in the securities is not equivalent to investing in the Index. As an investor in the securities, your return will not reflect the return you would realize if you actually owned and held the securities included in the Index for a period similar to the term of the securities because you will not

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receive any dividend payments, distributions or any other payments paid on those securities. As a holder of the securities, you will not have any voting rights or any other rights that holders of the securities included in the Index would have.

•

Historical Levels Of The Index Should Not Be Taken As An Indication Of The Future Performance Of The Index During The Term Of The Securities.

•

Changes That Affect The Index May Adversely Affect The Value Of The Securities And Any Payments On The Securities.

•

We Cannot Control Actions By Any Of The Unaffiliated Companies Whose Securities Are Included In The Index.

•

We And Our Subsidiaries Have No Affiliation With The Index Sponsor And Have Not Independently Verified Its Public Disclosure Of Information.

An Investment In The Securities Is Subject To Risks Associated With Investing In Non-U.S. Companies.

Some of the stocks included in the Index are issued by companies incorporated outside of the United States. The prices and performance of securities of non-U.S. companies are subject to political, economic, financial, military and social factors which could negatively affect foreign securities markets, including the possibility of recent or future changes in a foreign government’s economic, monetary and fiscal policies, the possible imposition of, or changes in, currency exchange laws or other laws or restrictions applicable to foreign companies or investments in foreign equity securities, the possibility of imposition of withholding taxes on dividend income, the possibility of fluctuations in the rate of exchange between currencies, the possibility of outbreaks of hostility or political instability and the possibility of natural disaster or adverse public health developments. Moreover, the relevant non-U.S. economies may differ favorably or unfavorably from the U.S. economy in important respects, such as growth of gross national product, rate of inflation, trade surpluses or deficits, capital reinvestment, resources and self-sufficiency.

Risks Relating To Conflicts Of Interest

Our Economic Interests And Those Of Any Dealer Participating In The Offering Are Potentially Adverse To Your Interests.

You should be aware of the following ways in which our economic interests and those of any dealer participating in the distribution of the securities, which we refer to as a “participating dealer,” are potentially adverse to your interests as an investor in the securities. In engaging in certain of the activities described below and as discussed in more detail in the accompanying product supplement, our subsidiaries or any participating dealer or its affiliates may take actions that may adversely affect the value of and your return on the securities, and in so doing they will have no obligation to consider your interests as an investor in the securities. Our subsidiaries or any participating dealer or its affiliates may realize a profit from these activities even if investors do not receive a favorable investment return on the securities.

•

The calculation agent is our subsidiary and may be required to make discretionary judgments that affect the return you receive on the securities. JFSI, a wholly owned subsidiary of Jefferies Financial Group Inc., will be the calculation agent for the securities. As calculation agent, JFSI will determine any values of the Index and make any other determinations necessary to calculate any payments on the securities. In making these determinations, JFSI may be required to make discretionary judgments that may adversely affect any payments on the securities. See the sections entitled “General Terms of the Securities— Certain Terms for Securities Linked to an Index—Market Disruption Events,”—Adjustments to an Index” and “—Discontinuance of an Index” in the accompanying product supplement. In making these discretionary judgments, the fact that JFSI is our subsidiary may cause it to have economic interests that are adverse to your interests as an investor in the securities, and JFSI’s determinations as calculation agent may adversely affect your return on the securities.

•

Research reports by our subsidiaries or any participating dealer or its affiliates may be inconsistent with an investment in the securities and may adversely affect the level of the Index.

•

Business activities of our subsidiaries or any participating dealer or its affiliates with the companies whose securities are included in the Index may adversely affect the level of the Index.

•

Hedging activities by our subsidiaries or any participating dealer or its affiliates may adversely affect the level of the Index.

•

Trading activities by our subsidiaries or any participating dealer or its affiliates may adversely affect the level of the Index.

•

A participating dealer or its affiliates may realize hedging profits projected by its proprietary pricing models in addition to any selling concession and/or distribution expense fee, creating a further incentive for the participating dealer to sell the securities to you.

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Hypothetical Examples and Returns

The payout profile, hypothetical returns and examples below illustrate hypothetical payments upon an automatic call or at maturity for a $1,000 face amount security on a hypothetical offering of securities under various scenarios, with the assumptions set forth in the table below. The terms used for purposes of these hypothetical examples do not represent the actual starting level or threshold level. The hypothetical starting level of 100.00 has been chosen for illustrative purposes only and does not represent the actual starting level. The actual starting level and threshold level are set forth under “Terms of the Securities” above. For historical data regarding the actual closing levels of the Index, see the historical information set forth herein. The payout profile, return table and examples below assume that an investor purchases the securities for $1,000 per security. These examples are for purposes of illustration only and the values used in the examples may have been rounded for ease of analysis. The actual amount you receive at stated maturity or upon automatic call and resulting pre-tax total rate of return will depend on the actual terms of the securities.

	Hypothetical Call Premiums:		8.20% for the first call date, 16.40% for the second call date, 24.60% for the third call date and 32.80% for the fourth call date
	Hypothetical Starting Level:		100.00
	Hypothetical Threshold Level:		90.00 (90% of the hypothetical starting level)
	Buffer Amount:		10%

Hypothetical Payout Profile

Hypothetical Returns

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If the securities are automatically called:

Hypothetical call date on which securities are automatically called	Hypothetical payment per security on related call settlement date	Hypothetical pre-tax total rate of return⁽²⁾
1st call date	$1,082.00	8.20%
2nd call date	$1,164.00	16.40%
3rd call date	$1,246.00	24.60%
4th call date	$1,328.00	32.80%

If the securities are not automatically called:

Hypothetical ending level	Hypothetical index return⁽¹⁾	Hypothetical maturity payment amount per security	Hypothetical pre-tax total rate of return⁽²⁾
95.00	-5.00%	$1,000.00	0.00%
90.00	-10.00%	$1,000.00	0.00%
89.00	-11.00%	$990.00	-1.00%
80.00	-20.00%	$900.00	-10.00%
70.00	-30.00%	$800.00	-20.00%
60.00	-40.00%	$700.00	-30.00%
50.00	-50.00%	$600.00	-40.00%
25.00	-75.00%	$350.00	-65.00%
0.00	-100.00%	$100.00	-90.00%

⁽¹⁾	The index return is equal to the percentage change from the starting level to the ending level (i.e., the ending level minus starting level, divided by starting level).

⁽²⁾	The hypothetical pre-tax total rate of return is the number, expressed as a percentage, that results from comparing the payment per security upon automatic call or at stated maturity to the face amount of $1,000.

Hypothetical Examples Of Payment Upon An Automatic Call Or At Maturity

Example 1. The closing level of the Index on the first call date is greater than the starting level, and the securities are automatically called on the first call date:

		NASDAQ-100 Index^®
	Hypothetical starting level:	100.00
	Hypothetical closing level on first call date:	125.00

Because the hypothetical closing level of the Index on the first call date is greater than the hypothetical starting level, the securities are automatically called on the first call date and you will receive on the related call settlement date the face amount of your securities plus a call premium of 8.20% of the face amount. Even though the Index appreciated by 25.00% from the starting level to its closing level on the first call date in this example, your return is limited to the call premium of 8.20% that is applicable to such call date.

On the call settlement date, you would receive $1,082.00 per security.

Example 2. The securities are not automatically called prior to the last call date (the final calculation day). The closing level of the Index on the final calculation day is greater than the starting level, and the securities are automatically called on the final calculation day:

		NASDAQ-100 Index^®
	Hypothetical starting level:	100.00
	Hypothetical closing level on call dates prior to the final calculation day:	Various (all below starting level)
	Hypothetical closing level on final calculation day:	120.00

Because the hypothetical closing level of the Index on each call date prior to the last call date (which is the final calculation day) is less than the hypothetical starting level, the securities are not called prior to the final calculation day. Because the hypothetical closing level

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of the Index on the final calculation day is greater than the hypothetical starting level, the securities are automatically called on the final calculation day and you will receive on the related call settlement date (which is the stated maturity date) the face amount of your securities plus a call premium of 32.80% of the face amount.

On the call settlement date (which is the stated maturity date), you would receive $1,328.00 per security

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Market Linked Securities— Auto-Callable with Fixed Percentage

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Example 3. The securities are not automatically called. The ending level is less than the starting level but greater than the threshold level and the maturity payment amount is equal to the face amount:

			NASDAQ-100 Index^®
	Hypothetical starting level:		100.00
	Hypothetical closing level on each call date:		Various (all below starting level)
	Hypothetical ending level:		95.00
	Hypothetical threshold level:		90.00, which is 90.00% of the hypothetical starting level
	Hypothetical index return (ending level – starting level)/starting level:		-5.00%

Because the hypothetical closing level of the Index on each call date (including the final calculation day) is less than the hypothetical starting level, the securities are not automatically called. Because the hypothetical ending level is less than the hypothetical starting level, but not by more than the buffer amount, you would receive the face amount of your securities at maturity.

On the stated maturity date, you would receive $1,000.00 per security.

Example 4. The securities are not automatically called. The ending level is less than the threshold level and the maturity payment amount is less than the face amount:

			NASDAQ-100 Index^®
	Hypothetical starting level:		100.00
	Hypothetical closing level on each call date:		Various (all below starting level)
	Hypothetical ending level:		50.00
	Hypothetical threshold level:		90.00, which is 90.00% of the hypothetical starting level
	Hypothetical index return (ending level – starting level)/starting level:		-50.00%

Because the hypothetical closing level of the Index on each call date (including the final calculation day) is less than the hypothetical starting level, the securities are not automatically called. Because the hypothetical ending level is less than the hypothetical starting level by more than the buffer amount, you would lose a portion of the face amount of your securities and receive the maturity payment amount equal to:

$1,000 + [$1,000 × (index return + buffer amount)]

$1,000 + [ $1,000 × (-50.00% + 10%)]

= $600.00

On the stated maturity date you would receive $600.00 per security.

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Market Linked Securities— Auto-Callable with Fixed Percentage

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

All disclosures contained in this pricing supplement regarding the Market Measure, including, without limitation, its make-up, method of calculation, and changes in its components, have been derived from publicly available sources. The information reflects the policies of, and is subject to change by Nasdaq, Inc., the index sponsor of the Nasdaq-100 Index^® (the “index sponsor”). The index sponsor, which licenses the copyright and all other rights to the Market Measure, has no obligation to continue to publish, and may discontinue publication of, the Market Measure. The consequences of the index sponsor discontinuing publication of the Market Measure are discussed in “General Terms of the Notes—Discontinuance of an Index” in the accompanying product supplement. None of us, the calculation agent, or Jefferies LLC accepts any responsibility for the calculation, maintenance or publication of the Market Measure or any successor index. None of us, the calculation agent, Jefferies LLC or any of our other subsidiaries makes any representation to you as to the future performance of the Market Measure. You should make your own investigation into the Market Measure.

The Nasdaq-100 Index^®

The Nasdaq-100 Index^® (the “NDX”) is intended to measure the performance of the 100 largest domestic and international non-financial securities listed on The Nasdaq Stock Market (“NASDAQ”) based on market capitalization. The NDX reflects companies across major industry groups including computer hardware and software, telecommunications, retail/wholesale trade and biotechnology. It does not contain securities of financial companies including investment companies.

The NDX began trading on January 31, 1985 at a base value of 125.00. The NDX is calculated and published by Nasdaq, Inc. In administering the NDX, Nasdaq, Inc. will exercise reasonable discretion as it deems appropriate.

Underlying Stock Eligibility Criteria

NDX eligibility is limited to specific security types only. The security types eligible for the NDX include foreign or domestic common stocks, ordinary shares, ADRs and tracking stocks. Security types not included in the NDX are closed-end funds, convertible debt securities, exchange traded funds, limited liability companies, limited partnership interests, preferred stocks, rights, shares or units of beneficial interest, warrants, units, and other derivative securities. The NDX does not contain securities of investment companies. For purposes of the NDX eligibility criteria, if the security is a depositary receipt representing a security of a non-U.S. issuer, then references to the “issuer” are references to the issuer of the underlying security.

Initial Eligibility Criteria

To be eligible for initial inclusion in the NDX, a security must be listed on NASDAQ and meet the following criteria:

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the security’s U.S. listing must be exclusively on the Nasdaq Global Select Market or the Nasdaq Global Market (unless the security was dually listed on another U.S. market prior to January 1, 2004 and has continuously maintained such listing);

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the security must be of a non-financial company;

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the security may not be issued by an issuer currently in bankruptcy proceedings;

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the security must have a minimum three-month average daily trading volume of at least 200,000 shares;

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if the issuer of the security is organized under the laws of a jurisdiction outside the U.S., then such security must have listed options on a recognized options market in the U.S. or be eligible for listed-options trading on a recognized options market in the U.S.;

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the issuer of the security may not have entered into a definitive agreement or other arrangement which would likely result in the security no longer being eligible for inclusion in the NDX;

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the issuer of the security may not have annual financial statements with an audit opinion that is currently withdrawn; and

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the issuer of the security must have “seasoned” on NASDAQ, the New York Stock Exchange or NYSE Amex. Generally, a company is considered to be seasoned if it has been listed on a market for at least three full months (excluding the first month of initial listing).

Continued Eligibility Criteria

In addition, to be eligible for continued inclusion in the NDX, the following criteria apply:

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the security’s U.S. listing must be exclusively on the Nasdaq Global Select Market or the Nasdaq Global Market;

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the security must be of a non-financial company;

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the security may not be issued by an issuer currently in bankruptcy proceedings;

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the security must have a minimum three-month average daily trading volume of at least 200,000 shares;

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the security must have an adjusted market capitalization equal to or exceeding 0.10% of the aggregate adjusted market capitalization of the NDX at each month-end. In the event a company does not meet this criterion for two consecutive month-ends, it will be removed from the NDX effective after the close of trading on the third Friday of the following month; and

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the issuer of the security may not have annual financial statements with an audit opinion that is currently withdrawn.

Computation of the NDX

The value of the NDX equals the aggregate value of the NDX share weights (the “NDX Shares”) of each of the NDX securities multiplied by each such security’s last sale price (last sale price refers to the last sale price on NASDAQ), and divided by the divisor of the NDX. If trading in an NDX security is halted while the market is open, the last traded price for that security is used for all NDX computations until trading resumes. If trading is halted before the market is open, the previous day’s last sale price is used. The formula for determining the NDX value is as follows:

The NDX is ordinarily calculated without regard to cash dividends on NDX securities. The NDX is calculated during the trading day and is disseminated once per second from 09:30:01 to 17:16:00 ET. The closing level of the NDX may change up until 17:15:00 ET due to corrections to the last sale price of the NDX securities. The official closing value of the NDX is ordinarily disseminated at 17:16:00 ET.

NDX Maintenance

Changes to NDX Constituents

Changes to the NDX constituents may be made during the annual ranking review. In addition, if at any time during the year other than the annual review, it is determined that an NDX security issuer no longer meets the criteria for continued inclusion in the NDX, or is otherwise determined to have become ineligible for continued inclusion in the NDX, it is replaced with the largest market capitalization issuer not currently in the NDX that meets the applicable eligibility criteria for initial inclusion in the NDX.

Ordinarily, a security will be removed from the NDX at its last sale price. However, if at the time of its removal the NDX security is halted from trading on its primary listing market and an official closing price cannot readily be determined, the NDX security may, in Nasdaq, Inc.’s discretion, be removed at a price of $0.00000001 (“zero price”). This zero price will be applied to the NDX security after the close of the market but prior to the time the official closing value of the NDX is disseminated.

Divisor Adjustments

The divisor is adjusted to ensure that changes in the NDX constituents either by corporate actions (that adjust either the price or shares of an NDX security) or NDX participation outside of trading hours do not affect the value of the NDX. All divisor changes occur after the close of the applicable index security markets.

Quarterly NDX Rebalancing

The NDX will be rebalanced on a quarterly basis if it is determined that (1) the current weight of the single NDX security with the largest market capitalization is greater than 24.0% of the NDX or (2) the collective weight of those securities whose individual current weights are in excess of 4.5% exceeds 48.0% of the NDX. In addition, a “special rebalancing” of the NDX may be conducted at any time if Nasdaq, Inc. determines it necessary to maintain the integrity and continuity of the NDX. If either one or both of the above weight distribution conditions are met upon quarterly review, or Nasdaq, Inc. determines that a special rebalancing is necessary, a weight rebalancing will be performed.

If the first weight distribution condition is met and the current weight of the single NDX security with the largest market capitalization is greater than 24.0%, then the weights of all securities with current weights greater than 1.0% (“large securities”) will be scaled down proportionately toward 1.0% until the adjusted weight of the single largest NDX security reaches 20.0%.

If the second weight distribution condition is met and the collective weight of those securities whose individual current weights are in excess of 4.5% (or adjusted weights in accordance with the previous step, if applicable) exceeds 48.0% of the NDX, then the weights of

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all such large securities in that group will be scaled down proportionately toward 1.0% until their collective weight, so adjusted, is equal to 40.0%.

The aggregate weight reduction among the large securities resulting from either or both of the rebalancing steps above will then be redistributed to those securities with weightings of less than 1.0% (“small securities”) in the following manner. In the first iteration, the weight of the largest small security will be scaled upwards by a factor which sets it equal to the average NDX weight of 1.0%. The weights of each of the smaller remaining small securities will be scaled up by the same factor reduced in relation to each security’s relative ranking among the small securities such that the smaller the NDX security in the ranking, the less its weight will be scaled upward. This is intended to reduce the market impact of the weight rebalancing on the smallest component securities in the NDX.

In the second iteration of the small security rebalancing, the weight of the second largest small security, already adjusted in the first iteration, will be scaled upwards by a factor which sets it equal to the average NDX weight of 1.0%. The weights of each of the smaller remaining small securities will be scaled up by this same factor reduced in relation to each security’s relative ranking among the small securities such that, once again, the smaller the security in the ranking, the less its weight will be scaled upward. Additional iterations will be performed until the accumulated increase in weight among the small securities equals the aggregate weight reduction among the large securities that resulted from the rebalancing in accordance with the two weight distribution conditions discussed above.

Finally, to complete the rebalancing process, once the final weighting percentages for each NDX security have been set, the NDX Shares will be determined anew based upon the last sale prices and aggregate capitalization of the NDX at the close of trading on the last calendar day in February, May, August and November. Changes to the NDX Shares will be made effective after the close of trading on the third Friday in March, June, September and December, and an adjustment to the divisor is made to ensure continuity of the NDX. Ordinarily, new rebalanced NDX Shares will be determined by applying the above procedures to the current NDX Shares. However, Nasdaq, Inc. may, from time to time, determine rebalanced weights, if necessary, by applying the above procedure to the actual current market capitalization of the NDX components. In such instances, Nasdaq, Inc. would announce the different basis for rebalancing prior to its implementation.

During the quarterly rebalancing, data is cutoff as of the previous month end and no changes are made to the NDX from that cutoff until the quarterly index share change effective date, except in the case of changes due to corporate actions with an ex-date.

Adjustments for Corporate Actions

Changes in the price and/or NDX Shares driven by corporate events such as stock dividends, splits, and certain spin-offs and rights issuances will be adjusted on the ex-date. If the change in total shares outstanding arising from other corporate actions is greater than or equal to 10.0%, the change will be made as soon as practicable. Otherwise, if the change in total shares outstanding is less than 10.0%, then all such changes are accumulated and made effective at one time on a quarterly basis after the close of trading on the third Friday in each of March, June, September, and December. The NDX Shares are derived from the security’s total shares outstanding. The NDX Shares are adjusted by the same percentage amount by which the total shares outstanding have changed.

Historical Information

We obtained the closing levels of the Nasdaq-100 Index^® in the graph below from Bloomberg L.P., without independent verification.

The following graph sets forth daily closing levels of the Index for the period from January 1, 2018 to September 30, 2025. The closing level on September 30, 2025 was 24,679.99. The historical performance of the Index should not be taken as an indication of the future performance of the Index during the term of the securities.

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

License Agreement

The securities are not sponsored, endorsed, sold or promoted by Nasdaq, Inc. or its affiliates (Nasdaq, Inc., with its affiliates, are referred to as the “Corporations”). The Corporations have not passed on the legality or suitability of, or the accuracy or adequacy of descriptions and disclosures relating to, the securities. The Corporations make no representation or warranty, express or implied, to the owners of the securities or any member of the public regarding the advisability of investing in securities generally or in the securities particularly, or the ability of the NDX to track general stock market performance. The Corporations’ only relationship to us is in the licensing of the NASDAQ^®, OMX^®, NASDAQ OMX^®, and NDX registered trademarks, and certain trade names of the Corporations or their licensor and the use of the NDX which is determined, composed and calculated by Nasdaq, Inc. without regard to us or the securities. Nasdaq, Inc. has no obligation to take the needs of us or the owners of the securities into consideration in determining, composing or calculating the NDX. The Corporations are not responsible for and have not participated in the determination of the timing of, prices at, or quantities of the securities to be issued or in the determination or calculation of the equation by which the securities are to be converted into cash. The Corporations have no liability in connection with the administration, marketing or trading of the securities.

THE CORPORATIONS DO NOT GUARANTEE THE ACCURACY AND/OR UNINTERRUPTED CALCULATION OF THE NDX OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY US, OWNERS OF THE SECURITIES, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE NDX OR ANY DATA INCLUDED THEREIN. THE CORPORATIONS MAKE NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE NDX OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL THE CORPORATIONS HAVE ANY LIABILITY FOR ANY LOST PROFITS OR SPECIAL, INCIDENTAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES, EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

SUPPLEMENTAL DISCUSSION OF U.S. FEDERAL INCOME TAX CONSEQUENCES

The following section supplements the discussion of U.S. federal income taxation in the accompanying product supplement.

The following section is the opinion of Sidley Austin LLP, our counsel. In addition, it is the opinion of Sidley Austin LLP that the characterization of the securities for U.S. federal income tax purposes that will be required under the terms of the securities, as discussed below, is a reasonable interpretation of current law.

This section does not apply to you if you are a member of a class of holders subject to special rules, such as:

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a dealer in securities or currencies;

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a trader in securities that elects to use a mark-to-market method of accounting for your securities holdings;

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a bank;

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a life insurance company;

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a tax exempt organization;

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a partnership;

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a regulated investment company;

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an accrual method taxpayer subject to special tax accounting rules as a result of its use of financial statements;

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a common trust fund;

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a person that owns a security as a hedge or that is hedged against interest rate risks;

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a person that owns a security as part of a straddle or conversion transaction for tax purposes; or

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a U.S. holder (as defined below) whose functional currency for tax purposes is not the U.S. dollar.

Although this section is based on the U.S. Internal Revenue Code of 1986, as amended (the “Code”), its legislative history, existing and proposed regulations under the Code, published rulings and court decisions, all as currently in effect, no statutory, judicial or administrative authority directly addresses how your securities should be treated for U.S. federal income tax purposes, and as a result, the U.S. federal income tax consequences of your investment in your securities are uncertain. Moreover, these laws are subject to change, possibly on a retroactive basis.

You should consult your tax advisor concerning the U.S. federal income tax and any other applicable tax consequences of your investments in the securities, including the application of state, local or other tax laws and the possible effects of changes in federal or other tax laws.

U.S. Holders

This section applies to you only if you are a U.S. Holder that holds your securities as a capital asset for tax purposes. You are a “U.S. Holder” if you are a beneficial owner of each of your securities and you are:

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a citizen or resident of the United States;

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a domestic corporation;

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an estate whose income is subject to U.S. federal income tax regardless of its source; or

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a trust if a United States court can exercise primary supervision over the trust’s administration and one or more United States persons are authorized to control all substantial decisions of the trust.

Tax Treatment

You will be obligated pursuant to the terms of the securities — in the absence of a change in law, an administrative determination or a judicial ruling to the contrary — to characterize your securities for all tax purposes as pre-paid derivative contracts in respect of the Index. Except as otherwise stated below, the discussion herein assumes that the securities will be so treated.

Upon the sale, exchange, redemption or maturity of your securities, you should recognize capital gain or loss equal to the difference, if any, between the amount of cash you receive at such time and your tax basis in your securities. Your tax basis in the securities will generally be equal to the amount that you paid for the securities. If you hold your securities for more than one year, the gain or loss generally will be long-term capital gain or loss. If you hold your securities for one year or less, the gain or loss generally will be short-term capital gain or loss. Short-term capital gains are generally subject to tax at the marginal tax rates applicable to ordinary income.

We will not attempt to ascertain whether the issuer of any stock included in the Index would be treated as a “passive foreign investment company” (“PFIC”), within the meaning of Section 1297 of the Code. If the issuer of any stock included in the Index was so treated, certain adverse U.S. federal income tax consequences could possibly apply to a U.S. Holder of the securities. You should refer to information filed with the SEC by the issuer of each stock included in the Index and consult your tax advisor regarding the possible consequences to you, if any, if the issuer of any stock included in the Index is or becomes a PFIC.

No statutory, judicial or administrative authority directly discusses how your securities should be treated for U.S. federal income tax purposes. As a result, the U.S. federal income tax consequences of your investment in the securities are uncertain and alternative characterizations are possible. Accordingly, we urge you to consult your tax advisor in determining the tax consequences of an investment in your securities in your particular circumstances,

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

including the application of state, local or other tax laws and the possible effects of changes in federal or other tax laws.

Alternative Treatments

There is no judicial or administrative authority discussing how your securities should be treated for U.S. federal income tax purposes. Therefore, the IRS might assert that a treatment other than that described above is more appropriate. For example, the IRS could treat your securities as a single debt instrument subject to special rules governing contingent payment debt instruments. Under those rules, the amount of interest you are required to take into account for each accrual period would be determined by constructing a projected payment schedule for the securities and applying rules similar to those for accruing original issue discount on a hypothetical noncontingent debt instrument with that projected payment schedule. This method is applied by first determining the comparable yield – i.e., the yield at which we would issue a noncontingent fixed rate debt instrument with terms and conditions similar to your securities – and then determining a payment schedule as of the issue date that would produce the comparable yield. These rules may have the effect of requiring you to include interest in income in respect of your securities prior to your receipt of cash attributable to that income.

If the rules governing contingent payment debt instruments apply, any gain you recognize upon the sale, exchange, redemption or maturity of your securities would be treated as ordinary interest income. Any loss you recognize at that time would be treated as ordinary loss to the extent of interest you included as income in the current or previous taxable years in respect of your securities, and, thereafter, as capital loss.

If the rules governing contingent payment debt instruments apply, special rules would apply to a person who purchases securities at a price other than the adjusted issue price as determined for tax purposes.

It is possible that your securities could be treated in the manner described above, except that any gain or loss that you recognize at maturity or upon redemption would be treated as ordinary income or loss. You should consult your tax advisor as to the tax consequences of such characterization and any possible alternative characterizations of your securities for U.S. federal income tax purposes.

It is also possible that the IRS could seek to characterize your securities in a manner that results in tax consequences to you that are different from those described above. You should consult your tax advisor as to the tax consequences of any possible alternative characterizations of your securities for U.S. federal income tax purposes.

Possible Change in Law

On December 7, 2007, the IRS released a notice stating that the IRS and the Treasury Department are actively considering issuing guidance regarding the proper U.S. federal income tax treatment of an instrument such as the securities, including whether holders should be required to accrue ordinary income on a current basis and whether gain or loss should be ordinary or capital. It is not possible to determine what guidance they will ultimately issue, if any. It is possible, however, that under such guidance, holders of the securities will ultimately be required to accrue income currently and this could be applied on a retroactive basis. The IRS and the Treasury Department are also considering other relevant issues, including whether foreign holders of such instruments should be subject to withholding tax on any deemed income accruals and whether the special “constructive ownership rules” of Section 1260 of the Code might be applied to such instruments. Except to the extent otherwise provided by law, we intend to continue treating the securities for U.S. federal income tax purposes in accordance with the treatment described above under “Tax Treatment” unless and until such time as Congress, the Treasury Department or the IRS determine that some other treatment is more appropriate.

Furthermore, in 2007, legislation was introduced in Congress that, if enacted, would have required holders that acquired instruments such as your securities after the bill was enacted to accrue interest income over the term of such instruments even though there will be no interest payments over the term of such instruments. It is not possible to predict whether a similar or identical bill will be enacted in the future, or whether any such bill would affect the tax treatment of your securities.

It is impossible to predict what any such legislation or administrative or regulatory guidance might provide, and whether the effective date of any legislation or guidance will affect securities that were issued before the date that such legislation or guidance is issued. You are urged to consult your tax advisor as to the possibility that any legislative or administrative action may adversely affect the tax treatment of your securities.

Backup Withholding and Information Reporting

You will be subject to generally applicable information reporting and backup withholding requirements as discussed in the accompanying prospectus supplement under “United States Federal Taxation — U.S. Holders — Backup Withholding and Information Reporting” with respect to payments on your securities and, notwithstanding that we do not intend to treat the securities as debt for tax purposes, we intend to backup withhold on such payments with respect to your securities unless you comply with the requirements necessary to avoid backup withholding on debt instruments (in which case you will not be subject to such backup withholding) as set forth under “United States Federal Taxation — U.S. Holders — Backup Withholding and Information Reporting” in the accompanying prospectus. Please see the discussion under “United States Federal Taxation — U.S. Holders — Backup Withholding and Information

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

Reporting” in the accompanying prospectus supplement for a description of the applicability of the backup withholding and information reporting rules to payments made on your securities.

Non-U.S. Holders

This section applies to you only if you are a Non-U.S. Holder. You are a “Non-U.S. Holder” if you are the beneficial owner of securities and are, for U.S. federal income tax purposes:

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a nonresident alien individual;

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a foreign corporation; or

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an estate or trust that in either case is not subject to U.S. federal income tax on a net income basis on income or gain from the securities.

The term “Non-U.S. Holder” does not include any of the following holders:

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a holder who is an individual present in the United States for 183 days or more in the taxable year of disposition and who is not otherwise a resident of the United States for U.S. federal income tax purposes;

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certain former citizens or residents of the United States; or

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a holder for whom income or gain in respect of the securities is effectively connected with the conduct of a trade or business in the United States.

Such holders should consult their tax advisors regarding the U.S. federal income tax consequences of an investment in the securities.

We will not attempt to ascertain whether the issuer of any stock included in the Index would be treated as a “United States real property holding corporation” (“USRPHC”), within the meaning of Section 897 of the Code. If the issuer of any stock included in the Index was so treated, certain adverse U.S. federal income tax consequences could possibly apply to a Non-U.S. Holder of the securities. You should refer to information filed with the SEC by the issuer of each stock included in the Index and consult your tax advisor regarding the possible consequences to you, if any, if the issuer of any stock included in the Index is or becomes a USRPHC.

You will be subject to generally applicable information reporting and backup withholding requirements as discussed in the accompanying prospectus supplement under “United States Federal Taxation — Non-U.S. Holders — Backup Withholding and Information Reporting” with respect to payments on your securities and, notwithstanding that we do not intend to treat the securities as debt for tax purposes, we intend to backup withhold on such payments with respect to your securities unless you comply with the requirements necessary to avoid backup withholding on debt instruments (in which case you will not be subject to such backup withholding) as set forth under “United States Federal Taxation — Non-U.S. Holders — Backup Withholding and Information Reporting” in the accompanying prospectus supplement.

As discussed above, alternative characterizations of the securities for U.S. federal income tax purposes are possible. Should an alternative characterization of the securities, by reason of a change or clarification of the law, by regulation or otherwise, cause payments with respect to the securities to become subject to withholding tax, we will withhold tax at the applicable statutory rate and we will not make payments of any additional amounts. Prospective Non-U.S. Holders of the securities should consult their tax advisors in this regard.

Furthermore, on December 7, 2007, the IRS released Notice 2008-2 soliciting comments from the public on various issues, including whether instruments such as your securities should be subject to withholding. It is therefore possible that rules will be issued in the future, possibly with retroactive effect, that would cause payments on your securities to be subject to withholding, even if you comply with certification requirements as to your foreign status.

In addition, the Treasury Department has issued regulations under which amounts paid or deemed paid on certain financial instruments (“871(m) financial instruments”) that are treated as attributable to U.S.-source dividends could be treated, in whole or in part depending on the circumstances, as a “dividend equivalent” payment that is subject to tax at a rate of 30% (or a lower rate under an applicable treaty), which in the case of amounts you receive upon sale, exchange, redemption or maturity of your securities, could be collected via withholding. If these regulations were to apply to the securities, we may be required to withhold such taxes if any U.S.-source dividends are paid on any stocks included in the Index during the term of the securities. We could also require you to make certifications (e.g., an applicable IRS Form W-8) prior to the maturity of the securities in order to avoid or minimize withholding obligations, and we could withhold accordingly (subject to your potential right to claim a refund from the IRS) if such certifications were not received or were not satisfactory. If withholding was required, we would not be required to pay any additional amounts with respect to amounts so withheld. These regulations generally will apply to 871(m) financial instruments (or a combination of financial instruments treated as having been entered into in connection with each other) issued (or significantly modified and treated as retired and reissued) on or after January 1, 2027, but will also apply to certain 871(m) financial instruments (or a combination of financial instruments treated as having been entered into in connection with each other) that have a delta (as defined in the applicable Treasury regulations) of one and are issued (or significantly modified and treated as retired and reissued) on or after January 1, 2017. In addition, these regulations will not apply to financial instruments that reference a “qualified index” (as defined in the regulations). We have determined that, as of the issue date of your securities, your securities will not be subject to withholding under these rules. In certain limited circumstances, however, you should be aware that it is possible for Non-U.S. Holders to be liable for tax under these rules with respect to a combination of transactions treated as having been entered into in connection with each other even when no withholding is

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

required. You should consult your tax advisor concerning these regulations, subsequent official guidance and regarding any other possible alternative characterizations of your securities for U.S. federal income tax purposes.

Under current law, while the matter is not entirely clear, individual Non-U.S. Holders, and entities whose property is potentially includible in those individuals’ gross estates for U.S. federal estate tax purposes (for example, a trust funded by such an individual and with respect to which the individual has retained certain interests or powers), should note that, absent an applicable treaty benefit, a security is likely to be treated as U.S. situs property, subject to U.S. federal estate tax. These individuals and entities should consult their own tax advisors regarding the U.S. federal estate tax consequences of investing in a security.

Foreign Account Tax Compliance Act

Legislation commonly referred to as “FATCA” generally imposes a gross-basis withholding tax of 30% on payments to certain non-U.S. entities (including financial intermediaries) with respect to certain financial instruments, unless various U.S. information reporting and due diligence requirements have been satisfied. An intergovernmental agreement between the United States and the non-U.S. entity’s jurisdiction may modify or supplement these requirements. This legislation generally applies to certain financial instruments that are treated as paying U.S.-source interest or other U.S.-source “fixed or determinable annual or periodical” (“FDAP”) income. Current provisions of the Code and Treasury regulations that govern FATCA treat gross proceeds from a sale or other disposition of obligations that can produce U.S.-source interest or FDAP income as subject to FATCA withholding. However, under recently proposed Treasury regulations, such gross proceeds would not be subject to FATCA withholding. In its preamble to such proposed regulations, the Treasury Department and the IRS have stated that taxpayers may generally rely on the proposed Treasury regulations until final Treasury regulations are issued. We will not be required to pay any additional amounts with respect to amounts withheld. Both U.S. and Non-U.S. Holders should consult their tax advisors regarding the potential application of FATCA to the securities.

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

LEGAL MATTERS

In the opinion of Sidley Austin LLP, as counsel to Jefferies Financial Group Inc., when the securities offered by this pricing supplement have been executed and issued by Jefferies Financial Group Inc. and authenticated by the trustee pursuant to the indenture, and delivered against payment as contemplated herein, such securities will be valid and binding obligations of Jefferies Financial Group Inc., enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally, concepts of reasonableness and equitable principles of general applicability (including, without limitation, concepts of good faith, fair dealing and the lack of bad faith), provided that such counsel expresses no opinion as to the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above. This opinion is given as of the date hereof and is limited to the Federal laws of the United States and the laws of the State of New York as in effect on the date hereof. In addition, this opinion is subject to customary assumptions about the trustee’s authorization, execution and delivery of the indenture and the genuineness of signatures and certain factual matters, all as stated in the letter of such counsel dated May 12, 2023, which has been filed as Exhibit 5.1 to Jefferies Financial Group Inc.’s Registration Statement on Form S-3 filed with the Securities and Exchange Commission on May 12, 2023.

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Principal at Risk Securities Linked to the NASDAQ-100 Index^® due October 4, 2029

RECENT DEVELOPMENTS

On September 29, 2025, Jefferies Financial Group Inc. announced its financial results for its fiscal third quarter of 2025:

Highlights for the three months ended August 31, 2025:

•	Investment Banking Net Revenues of $1.1 billion

•	Capital Markets Net Revenues of $723 million

•	Asset Management Net Revenues of $177 million

•	Income Before Income Taxes of $332 million

•	Net Income of $224 million (reflects a 26.9% effective tax rate)

Highlights for the nine months ended August 31, 2025:

•	Investment Banking Net Revenues of $2.6 billion

•	Capital Markets Net Revenues of $2.1 billion

•	Asset Management Net Revenues of $523 million

•	Income Before Income Taxes of $618 million

•	Net Income of $440 million (reflects a 23.8% effective tax rate)

Amounts herein pertaining to August 31, 2025 represent a preliminary estimate as of the date of the earnings release and may be revised in our Quarterly Report on Form 10-Q for the quarter ended August 31, 2025.

The above preliminary financial data included in this pricing supplement has been prepared by and is the responsibility of Jefferies’ management. Deloitte & Touche LLP, Jefferies’ independent public accountant, has not audited, reviewed, compiled or performed any procedures with respect to the accompanying preliminary financial data. Accordingly, Deloitte & Touche LLP does not express an opinion or any other form of assurance with respect thereto.

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Source: View Original Filing on SEC EDGAR

[424B5] Jefferies Financial Group Inc. Prospectus Supplement (Debt Securities)

Rhea-AI Filing Summary

Positive

Negative

Insights

[424B5] Jefferies Financial Group Inc. Prospectus Supplement (Debt Securities)

Rhea-AI Filing Summary

Positive

Negative

Insights

Structured-Products Analyst positive

Credit & Market-Risk Specialist positive