X0508 4 2023-10-18 0 0000831001 CITIGROUP INC C 0001994231 MORTON ANDREW JOHN CITIGROUP INC., CORPORATE LAW DEPT. 388 GREENWICH STREET NEW YORK NY 10013 0 1 0 0 Head of Markets 0 Common Stock 2023-10-18 4 S 0 28096 40.6605 D 410059.98 D This price represents the average sale prices for multiple transactions reported on this line. The prices of the transactions reported on this line ranged from USD $40.625 to USD $40.72. Upon request by the SEC staff, the Issuer or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares and prices at which the transactions were effected. Andrew J. Morton by Joseph B. Wollard, Attorney-in-Fact 2023-10-20