[424B2] Citigroup Inc. Prospectus Supplement

Rhea-AI Filing Summary

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering Market-Linked Securities tied to the Nasdaq-100 Index® with a two-year tenor (issue: 16 Jul 2025; maturity: 15 Jul 2027) and a stated principal of $1,000 per note. The notes pay no periodic interest and are not listed on any exchange.

Return profile: at maturity investors receive (1) the principal plus 65.50 % of any positive index performance, or (2) principal reduced 1-for-1 by any negative performance, capped at a maximum loss of 10 % ($100). Thus, upside participation is partial while downside is buffered to –10 %.

Key economic terms: initial index level 22,829.26 (10 Jul 2025); valuation date 12 Jul 2027. Estimated value on the pricing date is $986.60, 1.34 % below issue price, reflecting structuring and hedging costs. Underwriter CGMI acts as principal and charges no explicit underwriting fee; total proceeds equal $1.05 million.

Risk considerations (select points from “Summary Risk Factors”): investors forgo dividends, face liquidity constraints because the notes are unlisted, and rely on the credit of both Citigroup Global Markets Holdings Inc. and Citigroup Inc. The value of the notes before maturity is sensitive to market factors and may be well below issue price. Tax counsel expects the notes to be treated as contingent payment debt instruments, requiring annual OID accrual.

• Issuer: Citigroup Global Markets Holdings Inc.
• Guarantee: Full and unconditional by Citigroup Inc.
• Upside participation: 65.50 %
• Maximum loss: 10 % of principal
• No coupons; contingent repayment only at maturity
• CUSIP/ISIN: 17333LKH7 / US17333LKH77

The product suits investors seeking limited downside buffer and modest leveraged exposure to the Nasdaq-100 over two years, and who can tolerate illiquidity, lack of income, and issuer credit risk.

Positive

• Downside buffer: Loss at maturity limited to 10 % of principal.
• Upside participation: 65.5 % of any index appreciation offers levered yet defined return.
• Citigroup guarantee: Full and unconditional guarantee by Citigroup Inc. enhances credit profile.

Negative

• No income: Notes pay zero coupons, reducing total return versus dividend-paying alternatives.
• Limited upside: Participation rate below 100 % means the note underperforms the index in strong rallies.
• Liquidity risk: Unlisted securities rely on CGMI’s discretionary secondary market.
• Issue premium: Estimated value ($986.60) is below the $1,000 issue price.
• Credit exposure: Payments depend on both Citigroup Global Markets Holdings Inc. and Citigroup Inc.
• Complex tax treatment: Classified as contingent payment debt instruments requiring OID accrual.

Insights

Structured Products Analyst

TL;DR: Two-year Nasdaq-100 note offers 65.5 % upside participation with 10 % downside cap; no coupons, unlisted, credit-linked to Citi.

From a product design standpoint, the note provides a simple risk-reward trade-off: a modest buffer against index declines in exchange for giving up 34.5 % of any upside and all dividends. The 10 % maximum loss makes this structure appealing to moderately risk-averse investors expecting sideways-to-slightly-bullish market conditions. However, the embedded derivative’s value (estimated at $986.60) shows an immediate 1.34 % premium, and secondary-market liquidity depends solely on CGMI. Credit risk is low but not negligible given the two-year horizon. Overall, the note is neutral in impact to Citi’s balance sheet and offers retail investors a defined-outcome alternative to direct QQQ exposure.

Portfolio Manager

TL;DR: Product is a niche allocation tool; limited size (<$2 m), immaterial for Citi, and unlikely to outperform direct index over time.

With only $1.05 m issued, the transaction is immaterial to Citigroup’s funding mix. For portfolios, the note’s 65.5 % participation means breakeven versus QQQ occurs when the index falls between –10 % and +15 %. Above roughly +15 %, direct index exposure outperforms; below –10 %, investors still lose 10 %. Given historical Nasdaq-100 volatility, probability-weighted outcomes favor direct equity for long-term growth or a buffer note with a higher cap. Liquidity constraints and tax treatment (contingent payment debt) further reduce attractiveness for institutional mandates. Hence, I view the structure as a retail-oriented, marketing-driven issuance with neutral market impact.

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Citigroup Global Markets Holdings Inc. July 11, 2025 Medium-Term Senior Notes, Series N Pricing Supplement No. 2025-USNCH27546 Filed Pursuant to Rule 424(b)(2) Registration Statement Nos. 333-270327 and 333-270327-01

Market-Linked Securities Linked to the Nasdaq-100 Index^&reg; Due July 15, 2027

&squarf; The securities offered by this pricing supplement are unsecured debt securities issued by Citigroup Global Markets Holdings Inc. and guaranteed by Citigroup Inc. Unlike conventional debt securities, the securities do not pay interest and do not guarantee the full repayment of principal at maturity. Instead, the securities offer the potential for a return at maturity based on the performance of the underlying specified below from the initial underlying value to the final underlying value.

&squarf; If the underlying appreciates from the initial underlying value to the final underlying value, the securities offer a limited degree of participation in the appreciation of the underlying equal to that appreciation multiplied by the upside participation rate specified below. However, if the underlying depreciates from the initial underlying value to the final underlying value, you will incur a loss at maturity equal to that depreciation, subject to the maximum loss at maturity. Even if the underlying appreciates from the initial underlying value to the final underlying value, so that you do receive a positive return at maturity, there is no assurance that your total return at maturity on the securities will compensate you for the effects of inflation or be as great as the yield you could have achieved on a conventional debt security of ours of comparable maturity.

&squarf; In exchange for the capped loss potential if the underlying depreciates, investors in the securities must be willing to forgo dividends with respect to the underlying. If the underlying does not appreciate from the initial underlying value to the final underlying value, you will not receive any return on your investment in the securities, and you may lose up to the maximum loss at maturity.

&squarf; In order to obtain the modified exposure to the underlying that the securities provide, investors must be willing to accept (i) an investment that may have limited or no liquidity and (ii) the risk of not receiving any amount due under the securities if we and Citigroup Inc. default on our obligations. All payments on the securities are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

KEY TERMS
Issuer:	Citigroup Global Markets Holdings Inc., a wholly owned subsidiary of Citigroup Inc.
Guarantee:	All payments due on the securities are fully and unconditionally guaranteed by Citigroup Inc.
Underlying:	Nasdaq-100 Index®
Stated principal amount:	$1,000 per security
Strike date:	July 10, 2025
Pricing date:	July 11, 2025
Issue date:	July 16, 2025
Valuation date:	July 12, 2027, subject to postponement if such date is not a scheduled trading day or certain market disruption events occur
Maturity date:	July 15, 2027
Payment at maturity:	You will receive at maturity for each security you then hold: ·     If the final underlying value is greater than the initial underlying value: $1,000 + the return amount ·     If the final underlying value is less than or equal to the initial underlying value: $1,000 + ($1,000 × the underlying return), subject to the maximum loss at maturity If the underlying depreciates from the initial underlying value to the final underlying value, you will be exposed to that depreciation up to the maximum loss at maturity. You should not invest in the securities unless you are willing and able to bear the risk of losing up to the maximum loss at maturity.
Initial underlying value:	22,829.26, the closing value of the underlying on the strike date
Final underlying value:	The closing value of the underlying on the valuation date
Return amount:	$1,000 × the underlying return × the upside participation rate
Upside participation rate:	65.50%
Underlying return:	(i) The final underlying value minus the initial underlying value, divided by (ii) the initial underlying value
Maximum loss at maturity:	$100.00 per security (10.00% of the stated principal amount). The maximum loss at maturity represents the maximum loss that may be realized at maturity under the terms of the securities (that is, the maximum amount by which the stated payment at maturity may be less than the stated principal amount). If you sell the securities prior to maturity, or if we and Citigroup Inc. default on our obligations under the securities, you may incur a greater loss on your investment.
Listing:	The securities will not be listed on any securities exchange
CUSIP / ISIN:	17333LKH7 / US17333LKH77

Underwriter:	Citigroup Global Markets Inc. (“CGMI”), an affiliate of the issuer, acting as principal
Underwriting fee and issue price:	Issue price(1)	Underwriting fee(2)	Proceeds to issuer
Per security:	$1,000.00	—	$1,000.00
Total:	$1,050,000.00	—	$1,050,000.00

(1) On the date of this pricing supplement, the estimated value of the securities is $986.60 per security, which is less than the issue price. The estimated value of the securities is based on CGMI&rsquo;s proprietary pricing models and our internal funding rate. It is not an indication of actual profit to CGMI or other of our affiliates, nor is it an indication of the price, if any, at which CGMI or any other person may be willing to buy the securities from you at any time after issuance. See &ldquo;Valuation of the Securities&rdquo; in this pricing supplement.

(2) For more information on the distribution of the securities, see &ldquo;Supplemental Plan of Distribution&rdquo; in this pricing supplement. CGMI and its affiliates may profit from hedging activity related to this offering, even if the value of the securities declines. See &ldquo;Use of Proceeds and Hedging&rdquo; in the accompanying prospectus.

Investing in the securities involves risks not associated with an investment in conventional debt securities. See &ldquo;Summary Risk Factors&rdquo; beginning on page PS-5.

Neither the Securities and Exchange Commission (the &ldquo;SEC&rdquo;) nor any state securities commission has approved or disapproved of the securities or determined that this pricing supplement and the accompanying product supplement, underlying supplement, prospectus supplement and prospectus are truthful or complete. Any representation to the contrary is a criminal offense.

You should read this pricing supplement together with the accompanying product supplement, underlying supplement, prospectus supplement and prospectus, which can be accessed via the hyperlinks below:

Product Supplement No. EA-02-10 dated March 7, 2023 Underlying Supplement No. 11 dated March 7, 2023

Prospectus Supplement and Prospectus each dated March 7, 2023

The securities are not bank deposits and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, nor are they obligations of, or guaranteed by, a bank.

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Citigroup Global Markets Holdings Inc.

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Additional Information

&nbsp;

The terms of the securities are set forth in the accompanying product supplement, prospectus supplement and prospectus, as supplemented by this pricing supplement. The accompanying product supplement, prospectus supplement and prospectus contain important disclosures that are not repeated in this pricing supplement. For example, the accompanying product supplement contains important information about how the closing value of the underlying will be determined and about adjustments that may be made to the terms of the securities upon the occurrence of market disruption events and other specified events with respect to the underlying. The accompanying underlying supplement contains information about the underlying that is not repeated in this pricing supplement. It is important that you read the accompanying product supplement, underlying supplement, prospectus supplement and prospectus together with this pricing supplement in connection with your investment in the securities. Certain terms used but not defined in this pricing supplement are defined in the accompanying product supplement.

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&nbsp; PS-2

Citigroup Global Markets Holdings Inc.

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Payout Diagram

&nbsp;

The diagram below illustrates your payment at maturity for a range of hypothetical underlying returns.

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Investors in the securities will not receive any dividends with respect to the underlying. The diagram and examples below do not show any effect of lost dividend yield over the term of the securities. See &ldquo;Summary Risk Factors&mdash;You will not receive dividends or have any other rights with respect to the underlying&rdquo; below.

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Payout Diagram
n The Securities	n The Underlying

&nbsp; PS-3

Citigroup Global Markets Holdings Inc.

&nbsp;

Hypothetical Examples

&nbsp;

The examples below illustrate how to determine the payment at maturity on the securities, assuming the various hypothetical final underlying values indicated below. The examples are solely for illustrative purposes, do not show all possible outcomes and are not a prediction of what the actual payment at maturity on the securities will be. The actual payment at maturity will depend on the actual final underlying value.

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The examples below are based on a hypothetical initial underlying value of 100.00 and do not reflect the actual initial underlying value. For the actual initial underlying value, see the cover page of this pricing supplement. We have used this hypothetical value, rather than the actual value, to simplify the calculations and aid understanding of how the securities work. However, you should understand that the actual payment at maturity on the securities will be calculated based on the actual initial underlying value, and not this hypothetical value. For ease of analysis, figures below have been rounded.

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Example 1&mdash;Upside Scenario. The final underlying value is 105.00, resulting in a 5.00% underlying return. In this example, the final underlying value is greater than the initial underlying value.

&nbsp;

Payment at maturity per security = $1,000 + the return amount

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= $1,000 + ($1,000 &times; the underlying return &times; the upside participation rate)

&nbsp;

= $1,000 + ($1,000 &times; 5.00% &times; 65.50%)

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= $1,000 + $32.75

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= $1,032.75

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In this scenario, the underlying has appreciated from the initial underlying value to the final underlying value, and your total return at maturity would equal the underlying return multiplied by the upside participation rate.

&nbsp;

Example 2&mdash;Downside Scenario A. The final underlying value is 95.00, resulting in a -5.00% underlying return.

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Payment at maturity per security = $1,000 + ($1,000 &times; the underlying return), subject to the maximum loss at maturity

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= $1,000 + ($1,000 &times; -5.00%), subject to the maximum loss at maturity

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= $1,000 + -$50.00, subject to the maximum loss at maturity

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= $950.00, subject to the maximum loss at maturity

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= $950.00

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In this scenario, the underlying has depreciated from the initial underlying value to the final underlying value, but not by more than 10.00%. As a result, your payment at maturity would reflect 1-to-1 exposure to the negative performance of the underlying and you would incur a loss at maturity equal to the depreciation of the underlying.

&nbsp;

Example 3&mdash;Downside Scenario B. The final underlying value is 80.00, resulting in a -20.00% underlying return.

&nbsp;

Payment at maturity per security = $1,000 + ($1,000 &times; the underlying return), subject to the maximum loss at maturity

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= $1,000 + ($1,000 &times; -20.00%), subject to the maximum loss at maturity

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= $1,000 + -$200.00, subject to the maximum loss at maturity

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= $800.00, subject to the maximum loss at maturity

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= $900

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In this scenario, the underlying has depreciated from the initial underlying value to the final underlying value by more than 10.00%. As a result, you would incur a loss at maturity equal to the maximum loss at maturity.

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&nbsp; PS-4

Citigroup Global Markets Holdings Inc.

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Summary Risk Factors

&nbsp;

An investment in the securities is significantly riskier than an investment in conventional debt securities. The securities are subject to all of the risks associated with an investment in our conventional debt securities (guaranteed by Citigroup Inc.), including the risk that we and Citigroup Inc. may default on our obligations under the securities, and are also subject to risks associated with the underlying. Accordingly, the securities are suitable only for investors who are capable of understanding the complexities and risks of the securities. You should consult your own financial, tax and legal advisors as to the risks of an investment in the securities and the suitability of the securities in light of your particular circumstances.

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The following is a summary of certain key risk factors for investors in the securities. You should read this summary together with the more detailed description of risks relating to an investment in the securities contained in the section &ldquo;Risk Factors Relating to the Securities&rdquo; beginning on page EA-7 in the accompanying product supplement. You should also carefully read the risk factors included in the accompanying prospectus supplement and in the documents incorporated by reference in the accompanying prospectus, including Citigroup Inc.&rsquo;s most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q, which describe risks relating to the business of Citigroup Inc. more generally.

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&sect; You may not receive any return on your investment in the securities and may lose up to the maximum loss at maturity. You will receive a positive return on your investment in the securities only if the underlying appreciates from the initial underlying value to the final underlying value. If the final underlying value is less than the initial underlying value, you will lose 1% of the stated principal amount of the securities for every 1% by which its final underlying value is less than its initial underlying value, subject to the maximum loss at maturity. As the securities do not pay any interest, if the underlying does not appreciate sufficiently from the initial underlying value to the final underlying value over the term of the securities or if the underlying depreciates from the initial underlying value to the final underlying value, the overall return on the securities may be less than the amount that would be paid on our conventional debt securities of comparable maturity.

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&sect; The securities do not offer full upside exposure to the underlying.&nbsp;&nbsp;You should understand that you will only participate in a limited degree of any appreciation of the underlying at maturity. Because the participation rate is less than 100%, you will not fully participate in the potential appreciation of the underlying at maturity. The securities will underperform a hypothetical alternative investment that provides 1-to-1 exposure to the appreciation of the underlying, as measured from the initial underlying value to the final underlying value.

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&sect; Although the securities limit your loss to the maximum loss at maturity, you may nevertheless suffer additional losses on your investment in real value terms if the underlying declines or does not appreciate sufficiently from the initial underlying value to the final underlying value. This is because inflation may cause the real value of the stated principal amount to be less at maturity than it is at the time you invest, and because an investment in the securities represents a forgone opportunity to invest in an alternative asset that does generate a positive real return. This potential loss in real value terms is significant given the term of the securities. You should carefully consider whether an investment that may not provide for any return on your investment, or may provide a return that is lower than the return on alternative investments, is appropriate for you. In addition, the maximum loss at maturity applies only at maturity. If you sell your securities prior to maturity, the price you receive may result in a loss that is significantly greater than the maximum loss at maturity.

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&sect; The securities do not pay interest. Unlike conventional debt securities, the securities do not pay interest or any other amounts prior to maturity. You should not invest in the securities if you seek current income during the term of the securities.

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&sect; You will not receive dividends or have any other rights with respect to the underlying. You will not receive any dividends with respect to the underlying. This lost dividend yield may be significant over the term of the securities. The payment scenarios described in this pricing supplement do not show any effect of such lost dividend yield over the term of the securities. In addition, you will not have voting rights or any other rights with respect to the underlying or the stocks included in the underlying.

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&sect; Your payment at maturity depends on the closing value of the underlying on a single day. Because your payment at maturity depends on the closing value of the underlying solely on the valuation date, you are subject to the risk that the closing value of the underlying on that day may be lower, and possibly significantly lower, than on one or more other dates during the term of the securities. If you had invested in another instrument linked to the underlying that you could sell for full value at a time selected by you, or if the payment at maturity were based on an average of closing values of the underlying, you might have achieved better returns.

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&sect; The securities are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. If we default on our obligations under the securities and Citigroup Inc. defaults on its guarantee obligations, you may not receive anything owed to you under the securities.

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&sect; The securities will not be listed on any securities exchange and you may not be able to sell them prior to maturity. The securities will not be listed on any securities exchange. Therefore, there may be little or no secondary market for the securities. CGMI currently intends to make a secondary market in relation to the securities and to provide an indicative bid price for the securities on a daily basis. Any indicative bid price for the securities provided by CGMI will be determined in CGMI&rsquo;s sole discretion, taking into account prevailing market conditions and other relevant factors, and will not be a representation by CGMI that the securities can be sold at that price, or at all. CGMI may suspend or terminate making a market and providing indicative bid prices without notice, at any time and for any reason. If CGMI suspends or terminates making a market, there may be no secondary market at all for the securities because it is likely that CGMI will be the only broker-dealer that is willing to buy your securities prior to maturity. Accordingly, an investor must be prepared to hold the securities until maturity.

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&sect; The estimated value of the securities on the pricing date, based on CGMI&rsquo;s proprietary pricing models and our internal funding rate, is less than the issue price. The difference is attributable to certain costs associated with selling, structuring and hedging the securities that are included in the issue price. These costs include (i) any selling concessions or other fees paid in connection with the offering of the securities, (ii) hedging and other costs incurred by us and our affiliates in connection with the offering of the securities and

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&nbsp; PS-5

Citigroup Global Markets Holdings Inc.

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(iii) the expected profit (which may be more or less than actual profit) to CGMI or other of our affiliates 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 &ldquo;The estimated value of the securities would be lower if it were calculated based on our secondary market rate&rdquo; below.

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&sect; The estimated value of the securities was determined for us by our affiliate using proprietary pricing models. CGMI derived the estimated value disclosed on the cover page of this pricing supplement from its proprietary pricing models. In doing so, it may have made discretionary judgments about the inputs to its models, such as the volatility of the closing value of the underlying, the dividend yield on the underlying and interest rates. CGMI&rsquo;s views on these inputs may differ from your or others&rsquo; views, and as an underwriter in this offering, CGMI&rsquo;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 affiliates 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.

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&sect; 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 CGMI 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 an interest rate that is payable on the securities.

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Because there is not an active market for traded instruments referencing our outstanding debt obligations, CGMI determines our secondary market rate based on the market price of traded instruments referencing the debt obligations of Citigroup Inc., our parent company and the guarantor of all payments due on the securities, but subject to adjustments that CGMI 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&rsquo;s perception of our parent company&rsquo;s creditworthiness as adjusted for discretionary factors such as CGMI&rsquo;s preferences with respect to purchasing the securities prior to maturity.

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&sect; The estimated value of the securities is not an indication of the price, if any, at which CGMI 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. Moreover, unlike the estimated value included in this pricing supplement, any value of the securities determined for purposes of a secondary market transaction will be based on our secondary market rate, which will likely result in a lower value for the securities than if our internal funding rate were used. 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 issue price.

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&sect; The value of the securities prior to maturity will fluctuate based on many unpredictable factors. The value of your securities prior to maturity will fluctuate based on the closing value of the underlying, the volatility of the closing value of the underlying, the dividend yield on the underlying, interest rates generally, the time remaining to maturity and our and Citigroup Inc.&rsquo;s creditworthiness, as reflected in our secondary market rate, among other factors described under &ldquo;Risk Factors Relating to the Securities&mdash;Risk Factors Relating to All Securities&mdash;The value of your securities prior to maturity will fluctuate based on many unpredictable factors&rdquo; in the accompanying product supplement. Changes in the closing value of the underlying may not result in a comparable change in the value of your securities. You should understand that the value of your securities at any time prior to maturity may be significantly less than the issue price.

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&sect; Immediately following issuance, any secondary market bid price provided by CGMI, and the value that will be indicated on any brokerage account statements prepared by CGMI or its affiliates, will reflect a temporary upward adjustment. The amount of this temporary upward adjustment will steadily decline to zero over the temporary adjustment period. See &ldquo;Valuation of the Securities&rdquo; in this pricing supplement.

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&sect; Our offering of the securities is not a recommendation of the underlying. The fact that we are offering the securities does not mean that we believe that investing in an instrument linked to the underlying is likely to achieve favorable returns. In fact, as we are part of a global financial institution, our affiliates may have positions (including short positions) in the underlying or in instruments related to the underlying, and may publish research or express opinions, that in each case are inconsistent with an investment linked to the underlying. These and other activities of our affiliates may affect the closing value of the underlying in a way that negatively affects the value of and your return on the securities.

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&sect; The closing value of the underlying may be adversely affected by our or our affiliates&rsquo; hedging and other trading activities. We have hedged our obligations under the securities through CGMI or other of our affiliates, who have taken positions in the underlying or in financial instruments related to the underlying and may adjust such positions during the term of the securities. Our affiliates also take positions in the underlying or in financial instruments related to the underlying on a regular basis (taking long or short positions or both), for their accounts, for other accounts under their management or to facilitate transactions on behalf of customers. These activities could affect the closing value of the underlying in a way that negatively affects the value of and your return on the securities. They could also result in substantial returns for us or our affiliates while the value of the securities declines.

&nbsp;

&sect; We and our affiliates may have economic interests that are adverse to yours as a result of our affiliates&rsquo; business activities. Our affiliates engage in business activities with a wide range of companies. These activities include extending loans, making and facilitating

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&nbsp; PS-6

Citigroup Global Markets Holdings Inc.

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investments, underwriting securities offerings and providing advisory services. These activities could involve or affect the underlying in a way that negatively affects the value of and your return on the securities. They could also result in substantial returns for us or our affiliates while the value of the securities declines. In addition, in the course of this business, we or our affiliates may acquire non-public information, which will not be disclosed to you.

&nbsp;

&sect; The calculation agent, which is an affiliate of ours, will make important determinations with respect to the securities. If certain events occur during the term of the securities, such as market disruption events and other events with respect to the underlying, CGMI, as calculation agent, will be required to make discretionary judgments that could significantly affect your return on the securities. In making these judgments, the calculation agent&rsquo;s interests as an affiliate of ours could be adverse to your interests as a holder of the securities. See &ldquo;Risk Factors Relating to the Securities&mdash;Risk Factors Relating to All Securities&mdash;The calculation agent, which is an affiliate of ours, will make important determinations with respect to the securities&rdquo; in the accompanying product supplement.

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&sect; Changes that affect the underlying may affect the value of your securities. The sponsor of the underlying may at any time make methodological changes or other changes in the manner in which it operates that could affect the value of the underlying. We are not affiliated with the underlying sponsor and, accordingly, we have no control over any changes such sponsor may make. Such changes could adversely affect the performance of the underlying and the value of and your return on the securities.

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&nbsp; PS-7

Citigroup Global Markets Holdings Inc.

&nbsp;

Information About the Nasdaq-100 Index^&reg;

&nbsp;

The Nasdaq-100 Index^&reg; is a modified market capitalization-weighted index of stocks of the 100 largest non-financial companies listed on the Nasdaq Stock Market. All stocks included in the Nasdaq-100 Index^&reg;&nbsp;are traded on a major U.S. exchange. The Nasdaq-100 Index^&reg;&nbsp;was developed by the Nasdaq Stock Market, Inc. and is calculated, maintained and published by Nasdaq, Inc.

&nbsp;

Please refer to the section &ldquo;Equity Index Descriptions&mdash;The Nasdaq-100 Index^&reg;&rdquo; in the accompanying underlying supplement for additional information.

&nbsp;

We have derived all information regarding the Nasdaq-100 Index^&reg;&nbsp;from publicly available information and have not independently verified any information regarding the Nasdaq-100 Index^&reg;. This pricing supplement relates only to the securities and not to the Nasdaq-100 Index^&reg;. We make no representation as to the performance of the Nasdaq-100 Index^&reg;&nbsp;over the term of the securities.

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The securities represent obligations of Citigroup Global Markets Holdings Inc. (guaranteed by Citigroup Inc.) only. The sponsor of the Nasdaq-100 Index^&reg; is not involved in any way in this offering and has no obligation relating to the securities or to holders of the securities.

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Historical Information

&nbsp;

The closing value of the Nasdaq-100 Index^&reg; on July 10, 2025 was 22,829.26.

&nbsp;

The graph below shows the closing value of the Nasdaq-100 Index^&reg; for each day such value was available from January 2, 2015 to July 10, 2025. We obtained the closing values from Bloomberg L.P., without independent verification. You should not take the historical closing values as an indication of future performance.

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Nasdaq-100 Index^&reg; &ndash; Historical Closing Values January 2, 2015 to July 10, 2025

&nbsp; PS-8

Citigroup Global Markets Holdings Inc.

&nbsp;

United States Federal Income Tax Considerations

&nbsp;

Prospective investors should note that the section entitled &ldquo;United States Federal Tax Considerations&rdquo; in the accompanying product supplement does not apply to the securities issued under this pricing supplement and is superseded by the following discussion.

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In the opinion of our counsel, Davis Polk & Wardwell LLP, the securities should be treated as &ldquo;contingent payment debt instruments&rdquo; for U.S. federal income tax purposes, as described in the section of the accompanying prospectus supplement called &ldquo;United States Federal Tax Considerations&mdash;Tax Consequences to U.S. Holders&mdash;Notes Treated as Contingent Payment Debt Instruments,&rdquo; and the remaining discussion is based on this treatment.

&nbsp;

If you are a U.S. Holder (as defined in the accompanying prospectus supplement), you will be required to recognize interest income during the term of the securities at the &ldquo;comparable yield,&rdquo; which generally is the yield at which we could issue a fixed-rate debt instrument with terms similar to those of the securities, including the level of subordination, term, timing of payments and general market conditions, but excluding any adjustments for the riskiness of the contingencies or the liquidity of the securities. We are required to construct a &ldquo;projected payment schedule&rdquo; in respect of the securities representing a payment the amount and timing of which would produce a yield to maturity on the securities equal to the comparable yield. Assuming you hold the securities until their maturity, the amount of interest you include in income based on the comparable yield in the taxable year in which the securities mature will be adjusted upward or downward to reflect the difference, if any, between the actual and projected payment on the securities at maturity as determined under the projected payment schedule.

&nbsp;

Upon the sale, exchange or retirement of the securities prior to maturity, you generally will recognize gain or loss equal to the difference between the proceeds received and your adjusted tax basis in the securities. Your adjusted tax basis will equal your purchase price for the securities, increased by interest previously included in income on the securities. Any gain generally will be treated as ordinary income, and any loss generally will be treated as ordinary loss to the extent of prior interest inclusions on the security and as capital loss thereafter.

&nbsp;

We have determined that the comparable yield for a security is a rate of 4.176%, compounded semi-annually, and that the projected payment schedule with respect to a security consists of a single payment of $1,086.084 at maturity.

&nbsp;

Neither the comparable yield nor the projected payment schedule constitutes a representation by us regarding the actual amount that we will pay on the securities.

&nbsp;

Non-U.S. Holders. Subject to the discussions below regarding Section 871(m) and in &ldquo;United States Federal Tax Considerations&mdash;Tax Consequences to Non-U.S. Holders&rdquo; and &ldquo;&mdash;FATCA&rdquo; in the accompanying prospectus supplement, if you are a Non-U.S. Holder (as defined in the accompanying prospectus supplement) of the securities, under current law you generally will not be subject to U.S. federal withholding or income tax in respect of any payment on or any amount received on the sale, exchange or retirement of the securities, provided that (i) income in respect of the securities is not effectively connected with your conduct of a trade or business in the United States, and (ii) you comply with the applicable certification requirements. See &ldquo;United States Federal Tax Considerations&mdash;Tax Consequences to Non-U.S. Holders&rdquo; in the accompanying prospectus supplement for a more detailed discussion of the rules applicable to Non-U.S. Holders of the securities.

&nbsp;

As discussed under &ldquo;United States Federal Tax Considerations&mdash;Tax Consequences to Non-U.S. Holders&rdquo; in the accompanying prospectus supplement, Section 871(m) of the Internal Revenue Code of 1986, as amended, and Treasury regulations promulgated thereunder (&ldquo;Section 871(m)&rdquo;) generally impose a 30% withholding tax on dividend equivalents paid or deemed paid to Non-U.S. Holders with respect to certain financial instruments linked to U.S. equities (&ldquo;Underlying Securities&rdquo;) or indices that include Underlying Securities. Section 871(m) generally applies to instruments that substantially replicate the economic performance of one or more Underlying Securities, as determined based on tests set forth in the applicable Treasury regulations. However, the regulations, as modified by an Internal Revenue Service (&ldquo;IRS&rdquo;) notice, exempt financial instruments issued prior to January 1, 2027 that do not have a &ldquo;delta&rdquo; of one. Based on the terms of the securities and representations provided by us, our counsel is of the opinion that the securities should not be treated as transactions that have a &ldquo;delta&rdquo; of one within the meaning of the regulations with respect to any Underlying Security and, therefore, should not be subject to withholding tax under Section 871(m).

&nbsp;

A determination that the securities are not subject to Section 871(m) is not binding on the IRS, and the IRS may disagree with this treatment. Moreover, Section 871(m) is complex and its application may depend on your particular circumstances, including your other transactions. You should consult your tax adviser regarding the potential application of Section 871(m) to the securities.

&nbsp;

If withholding tax applies to the securities, we will not be required to pay any additional amounts with respect to amounts withheld.

&nbsp;

You should read the section entitled &ldquo;United States Federal Tax Considerations&rdquo; in the accompanying prospectus supplement. The preceding discussion, when read in combination with that section, constitutes the full opinion of Davis Polk & Wardwell LLP regarding the material U.S. federal tax consequences of owning and disposing of the securities.

&nbsp;

You should also consult your tax adviser regarding all aspects of the U.S. federal tax consequences of an investment in the securities and any tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

&nbsp;

&nbsp; PS-9

Citigroup Global Markets Holdings Inc.

&nbsp;

Supplemental Plan of Distribution

&nbsp;

CGMI, an affiliate of Citigroup Global Markets Holdings Inc. and the underwriter of the sale of the securities, is acting as principal and will not receive any underwriting fee for any securities sold in this offering.

&nbsp;

See &ldquo;Plan of Distribution; Conflicts of Interest&rdquo; in the accompanying product supplement and &ldquo;Plan of Distribution&rdquo; in each of the accompanying prospectus supplement and prospectus for additional information.

&nbsp;

Valuation of the Securities

&nbsp;

CGMI calculated the estimated value of the securities set forth on the cover page of this pricing supplement based on proprietary pricing models. CGMI&rsquo;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 &ldquo;bond component&rdquo;) and one or more derivative instruments underlying the economic terms of the securities (the &ldquo;derivative component&rdquo;). CGMI calculated the estimated value of the bond component using a discount rate based on our internal funding rate. CGMI calculated the estimated value of the derivative component based on a proprietary derivative-pricing model, which generated a theoretical price for the instruments that constitute the derivative component based on various inputs, including the factors described under &ldquo;Summary Risk Factors&mdash;The value of the securities prior to maturity will fluctuate based on many unpredictable factors&rdquo; in this pricing supplement, but not including our or Citigroup Inc.&rsquo;s creditworthiness. These inputs may be market-observable or may be based on assumptions made by CGMI in its discretionary judgment.

&nbsp;

For a period of approximately three months following issuance of the securities, the price, if any, at which CGMI would be willing to buy the securities from investors, and the value that will be indicated for the securities on any brokerage account statements prepared by CGMI or its affiliates (which value CGMI may also publish through one or more financial information vendors), will reflect a temporary upward adjustment from the price or value that would otherwise be determined. This temporary upward adjustment represents a portion of the hedging profit expected to be realized by CGMI or its affiliates over the term of the securities. The amount of this temporary upward adjustment will decline to zero on a straight-line basis over the three-month temporary adjustment period. However, CGMI is not obligated to buy the securities from investors at any time.&nbsp;&nbsp;See &ldquo;Summary Risk Factors&mdash;The securities will not be listed on any securities exchange and you may not be able to sell them prior to maturity.&rdquo;

&nbsp;

Validity of the Securities

&nbsp;

In the opinion of Davis Polk & Wardwell LLP, as special products counsel to Citigroup Global Markets Holdings Inc., when the securities offered by this pricing supplement have been executed and issued by Citigroup Global Markets Holdings Inc. and authenticated by the trustee pursuant to the indenture, and delivered against payment therefor, such securities and the related guarantee of Citigroup Inc. will be valid and binding obligations of Citigroup Global Markets Holdings Inc. and Citigroup Inc., respectively, enforceable in accordance with their respective terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors&rsquo; 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 of this pricing supplement and is limited to the laws of the State of New York, except that such counsel expresses no opinion as to the application of state securities or Blue Sky laws to the securities.

&nbsp;

In giving this opinion, Davis Polk & Wardwell LLP has assumed the legal conclusions expressed in the opinions set forth below of Alexia Breuvart, Secretary and General Counsel of Citigroup Global Markets Holdings Inc., and Karen Wang, Senior Vice President &ndash; Corporate Securities Issuance Legal of Citigroup Inc.&nbsp;&nbsp;In addition, this opinion is subject to the assumptions set forth in the letter of Davis Polk & Wardwell LLP dated February 14, 2024, which has been filed as an exhibit to a Current Report on Form 8-K filed by Citigroup Inc. on February 14, 2024, that the indenture has been duly authorized, executed and delivered by, and is a valid, binding and enforceable agreement of, the trustee and that none of the terms of the securities nor the issuance and delivery of the securities and the related guarantee, nor the compliance by Citigroup Global Markets Holdings Inc. and Citigroup Inc. with the terms of the securities and the related guarantee respectively, will result in a violation of any provision of any instrument or agreement then binding upon Citigroup Global Markets Holdings Inc. or Citigroup Inc., as applicable, or any restriction imposed by any court or governmental body having jurisdiction over Citigroup Global Markets Holdings Inc. or Citigroup Inc., as applicable.

&nbsp;

In the opinion of Alexia Breuvart, Secretary and General Counsel of Citigroup Global Markets Holdings Inc., (i) the terms of the securities offered by this pricing supplement have been duly established under the indenture and the Board of Directors (or a duly authorized committee thereof) of Citigroup Global Markets Holdings Inc. has duly authorized the issuance and sale of such securities and such authorization has not been modified or rescinded; (ii) Citigroup Global Markets Holdings Inc. is validly existing and in good standing under the laws of the State of New York; (iii) the indenture has been duly authorized, executed and delivered by Citigroup Global Markets Holdings Inc.; and (iv) the execution and delivery of such indenture and of the securities offered by this pricing supplement by Citigroup Global Markets Holdings Inc., and the performance by Citigroup Global Markets Holdings Inc. of its obligations thereunder, are within its corporate powers and do not contravene its certificate of incorporation or bylaws or other constitutive documents. This opinion is given as of the date of this pricing supplement and is limited to the laws of the State of New York.

&nbsp;

Alexia Breuvart, or other internal attorneys with whom she has consulted, has examined and is familiar with originals, or copies certified or otherwise identified to her satisfaction, of such corporate records of Citigroup Global Markets Holdings Inc., certificates or documents as she has deemed appropriate as a basis for the opinions expressed above. In such examination, she or such persons has assumed the legal capacity of all natural persons, the genuineness of all signatures (other than those of officers of Citigroup Global Markets Holdings Inc.), the authenticity of all documents submitted to her or such persons as originals, the conformity to original documents of all documents submitted to her or such persons as certified or photostatic copies and the authenticity of the originals of such copies.

&nbsp;

&nbsp; PS-10

Citigroup Global Markets Holdings Inc.

&nbsp;

In the opinion of Karen Wang, Senior Vice President &ndash; Corporate Securities Issuance Legal of Citigroup Inc., (i) the Board of Directors (or a duly authorized committee thereof) of Citigroup Inc. has duly authorized the guarantee of such securities by Citigroup Inc. and such authorization has not been modified or rescinded; (ii) Citigroup Inc. is validly existing and in good standing under the laws of the State of Delaware; (iii) the indenture has been duly authorized, executed and delivered by Citigroup Inc.; and (iv) the execution and delivery of such indenture, and the performance by Citigroup Inc. of its obligations thereunder, are within its corporate powers and do not contravene its certificate of incorporation or bylaws or other constitutive documents.&nbsp;&nbsp;This opinion is given as of the date of this pricing supplement and is limited to the General Corporation Law of the State of Delaware.

&nbsp;

Karen Wang, or other internal attorneys with whom she has consulted, has examined and is familiar with originals, or copies certified or otherwise identified to her satisfaction, of such corporate records of Citigroup Inc., certificates or documents as she has deemed appropriate as a basis for the opinions expressed above. In such examination, she or such persons has assumed the legal capacity of all natural persons, the genuineness of all signatures (other than those of officers of Citigroup Inc.), the authenticity of all documents submitted to her or such persons as originals, the conformity to original documents of all documents submitted to her or such persons as certified or photostatic copies and the authenticity of the originals of such copies.

&nbsp;

Contact

&nbsp;

Clients may contact their local brokerage representative. Third-party distributors may contact Citi Structured Investment Sales at (212) 723-7005.

&nbsp;

&copy; 2025 Citigroup Global Markets Inc. All rights reserved. Citi and Citi and Arc Design are trademarks and service marks of Citigroup Inc. or its affiliates and are used and registered throughout the world.

&nbsp;

&nbsp; PS-11

FAQ

What is the upside participation rate on Citigroup’s Nasdaq-100 linked note (C)?

The note participates in 65.50 % of any positive return of the Nasdaq-100 Index® at maturity.

How much principal can I lose on the Citigroup 2027 market-linked securities?

Your loss at maturity is capped at 10 % of principal ($100 per $1,000 note).

Do these Citigroup notes pay interest or dividends during the term?

No. No periodic interest or dividends are paid; all return is contingent on the index level at maturity.

When do the Citigroup Nasdaq-100 notes mature?

The securities mature on 15 July 2027, with valuation date on 12 July 2027.

Is there an early redemption or call feature?

The filing does not mention any issuer call or early redemption; investors should expect to hold until maturity or sell in the secondary market, if available.

What is the estimated value compared with the issue price?

Citigroup estimates the value at $986.60, which is 1.34 % below the $1,000 issue price.