C Citigroup Inc

0.776%, payable semiannually in arrears on each April 30 and October 30 from, and including, the Settlement Date to, but excluding, October 30, 2023 (the “fixed rate period”).

Following business day convention during the fixed rate period. Business days during fixed rate period New York.

From, and including, October 30, 2023 (the “floating rate period”), an annual floating rate equal to SOFR (as defined in the Issuer’s preliminary prospectus supplement dated October 23, 2020 (the “Preliminary Prospectus Supplement”) and compounding daily over each interest period as described in the Preliminary Prospectus Supplement) plus 0.686%, payable quarterly in arrears, on the second business day following each interest period end date, beginning on February 1, 2024 and ending at Maturity or any earlier redemption date. An “interest period end date” means the 30^th of each January, April, July and October, beginning on January 30, 2024 and ending at Maturity or any earlier redemption date.

Modified following business day convention during the floating rate period. Business days during floating rate period New York and U.S. Government Securities Business (as defined in the Preliminary Prospectus Supplement).

We may redeem the notes, at our option, in whole at any time or in part from time to time, on or after April 30, 2021 (or if additional notes are issued after October 30, 2020, beginning six months after the issue date of such additional notes) and prior to October 30, 2023 at a redemption price equal to the sum of (i) 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest thereon to, but excluding, the date of redemption; and (ii) the Make-Whole Amount (as defined in the Issuer’s base prospectus dated June 27, 2019 (the “Prospectus”)), if any, with respect to such notes. The Reinvestment Rate (as defined in the Prospectus) will equal the Treasury Yield defined therein calculated to October 30, 2023, plus 0.100%.

We may redeem the notes, at our option, (i) in whole, but not in part, on October 30, 2023, or (ii) in whole at any time or in part from time to time, on or after September 30, 2024 at a redemption price equal to the sum of 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest thereon to, but excluding, the date of redemption. SOFR for each calendar day from, and including, the Rate Cut-Off Date to, but excluding, the redemption date will equal SOFR in respect of the Rate Cut-Off Date.

We may redeem the notes, at our option, in whole at any time, but not in part at a redemption price equal to 100% of the principal amount of the notes plus accrued and unpaid interest thereon to, but excluding, the date of redemption, if, as a result of changes in U.S. tax law, withholding tax or information reporting requirements are imposed on payments on the notes to non-U.S. persons.

SOFR for each calendar day from, and including, the Rate Cut-Off Date to, but excluding, the redemption date will equal SOFR in respect of the Rate Cut-Off Date.

Blaylock Van, LLC

CastleOak Securities, L.P.

Loop Capital Markets LLC

Samuel A. Ramirez & Company, Inc.

Academy Securities, Inc.

Great Pacific Securities

MFR Securities, Inc.

Roberts & Ryan Investments Inc.

Siebert Williams Shank & Co., LLC