X0201 42003-09-040 0000831001 CITIGROUP INC C 0001225708 WILLUMSTAD ROBERT B C/O CITIGROUP INC. CORPORATE LAW DEPT. 425 PARK AVENUE, 2ND FLOOR NEW YORK NY 10043 1100PresidentCommon Stock2003-09-045G033900D1470867.5DCommon Stock8660.9IBy Issuer's 401(k) Plan.Includes 98,681 shares directly beneficially owned by the Reporting Person in his capacity as trustee of two Grantor Retained Annuity Trusts.Robert B. Willumstad by Glenn S. Gray, Attorney in Fact2003-09-05