CNC: Other company developments

ITEM 8.01 OTHER EVENTS On October 8, 2026, Centene Corporation (the Company) delivered a notice of redemption to redeem on October 23, 2026 (the redemption date) all of the remaining $568,664,000 aggregate principal amount of its outstanding 4.25% Notes due December 15, 2027 (the 2027 Notes) in accordance with the terms of the 2027 Notes and the Indenture dated as of December 6, 2019 between the Company and The Bank of New York Mellon Trust Company, N.A. as trustee. Following the redemption, there will be no 2027 Notes outstanding. The redemption price is equal to 100% of the principal amount of the 2027 Notes being redeemed plus accrued and unpaid interest, if any, to, but excluding, the redemption date. This Current Report on Form 8-K does not constitute a notice of redemption with respect to the 2027 Notes. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. CENTENE CORPORATION Date: October 8, 2026 By: /s/ Christopher A. Koster Christopher A. Koster Executive Vice President, Secretary and General Counsel