X0508 4/A 2026-01-26 2026-01-28 0 0001071739 CENTENE CORP CNC 0002006135 SMITH SUSAN RAYE 7700 FORSYTH BOULEVARD CLAYTON MO 63105 0 1 0 0 Chief Operating Officer 0 Common Stock 2026-01-26 4 A 0 112823 0 A 215638 D This award includes 45,129 restricted stock units that vest in three annual installments beginning on March 15, 2027. This award also includes 67,694 performance stock units reported at target level performance. The actual number of performance stock units that will vest on March 15, 2029 ranges from 0% to 200% of the reported target performance stock units based on the Company's stock price performance for the final 20 trading days of 2025, compared to the final 60 trading days of 2028. This Form 4/A is being filed to amend the Form 4 filed on January 28, 2026 to remove from the total holdings amount 9,651 shares representing unvested performance stock units for the performance period ending on December 31, 2025 that did not meet the vesting criteria as determined by the Compensation and Talent Committee on January 26, 2026. Ownership includes 80,466 shares of previously-granted restricted stock units and performance stock units (reported at target level performance) subject to vesting requirements. /s/ Christopher A. Koster (executed by attorney-in-fact) 2026-02-06