Citigroup Global Markets Holdings Inc.

Guaranteed by Citigroup Inc.

·     You may not receive any positive return on your investment in the notes.

·     Although the notes provide for the repayment of the stated principal amount at maturity, you may nevertheless suffer a loss on your investment in real value terms.

·     Your potential to participate in the absolute value of any depreciation of the underlying index may terminate on any scheduled trading day during the observation period.

·     The probability that a knock-out event will occur will depend in part on the volatility of the underlying index.

·     Your potential return on the notes is limited and may significantly underperform the underlying index.

·     Investing in the notes is not equivalent to investing in the underlying index or the stocks that constitute the underlying index.

·     If a knock-out event does not occur, your payment at maturity will depend on the closing level of the underlying index on a single day.

·     The notes 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 notes and Citigroup Inc. defaults on its guarantee obligations, you may not receive anything owed to you under the notes.

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

·     Sale of the notes prior to maturity may result in a loss of principal.

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

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

·     The issuer and its affiliates may have conflicts of interest with you.

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

Citigroup Global Markets Holdings Inc. and Citigroup Inc. have filed registration statements (including the accompanying preliminary pricing supplement, product supplement, underlying 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, underlying supplement, prospectus supplement and prospectus in those registration statements (File Nos. 333-224495 and 333-224495-03) 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

Citi Structured Investments

+1-212-723-3136

structured.investments@citi.com