If the securities are not automatically redeemed prior to maturity, you will receive at maturity for each security you then hold:

▪  If the final underlying value is greater than or equal to the final barrier value: $1,000 + the contingent coupon payment due at maturity

▪  If the final underlying value is less than the final barrier value: a fixed number of underlying shares of the underlying equal to the equity ratio (or, if we elect, the cash value of those shares based on the final underlying value)

If the securities are not automatically redeemed prior to maturity and the final underlying value is less than the final barrier value, you will receive underlying shares (or, in our sole discretion, cash) expected to be worth significantly less than the stated principal amount of your securities, and possibly nothing, at maturity, and you will not receive any contingent coupon payment at maturity. The securities are unsecured debt securities. All payments on the securities are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Key Definitions 

·    You may lose a significant portion or all of your investment. Unlike conventional debt securities, the securities do not provide for the repayment of the stated principal amount at maturity in all circumstances. If the securities are not automatically redeemed prior to maturity and the final underlying value is less than the final barrier value, you will not receive the stated principal amount of your securities at maturity and, instead, will receive underlying shares of the underlying (or, in our sole discretion, cash based on the value thereof) expected to be worth significantly less than the stated principal amount and may be worth nothing. There is no minimum payment at maturity on the securities, and you may lose up to all of your investment.

·    You will not receive any contingent coupon on the contingent coupon payment date following any valuation date on which the closing value of the underlying is less than the coupon barrier value.

·    The securities may be automatically redeemed prior to maturity, limiting your opportunity to receive contingent coupon payments.

·    The securities offer downside exposure, but no upside exposure, to the underlying.

·    The securities are particularly sensitive to the volatility of the closing value of the underlying. Whether the contingent coupon will be paid, whether the securities will be automatically redeemed and whether you are repaid your principal at maturity will depend on the closing value of the underlying solely on the applicable valuation dates.

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

·    The securities will not be listed on any securities exchange and you may not be able to sell them prior to maturity.

·    The estimated value of the securities on the pricing date will be less than the issue price. For more information about the estimated value of the securities, see the accompanying preliminary pricing supplement.

·    The value of the securities prior to maturity will fluctuate based on many unpredictable factors.

·    The issuer and its affiliates may have economic interests that are adverse to yours as a result of its and their affiliates’ business activities.

·    The U.S. federal tax consequences of an investment in the securities are unclear.

The above summary of selected risks does not describe all of the risks associated with an investment in the securities. You should read the accompanying preliminary pricing supplement and product supplement for a more complete description of risks relating to the securities.

Citigroup Global Markets Holdings Inc. and Citigroup Inc. have filed registration statements (including the accompanying preliminary pricing supplement, product supplement, prospectus supplement and prospectus) with the Securities and Exchange Commission (“SEC”) for the offering to which this communication relates. Before you invest, you should read the accompanying preliminary pricing supplement, product supplement, prospectus supplement and prospectus in those registration statements (File Nos. 333-216372 and 333-216372-01) and the other documents Citigroup Global Markets Holdings Inc. and Citigroup Inc. have filed with the SEC for more complete information about Citigroup Global Markets Holdings Inc., Citigroup Inc. and this offering. You may obtain these documents without cost by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, you can request these documents by calling toll-free 1-800-831-9146.

Filed pursuant to Rule 433