CNC

cnc-202602060001071739false00010717392026-02-062026-02-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 6, 2026

CENTENE CORPORATION

(Exact Name of Registrant as Specified in Charter)

Delaware001-3182642-1406317 (State or Other Jurisdiction of Incorporation) (Commission File Number)(IRS Employer Identification No.)

7700 Forsyth Boulevard, St. Louis,Missouri63105 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code: (314) 725-4477 (Former Name or Former Address, if Changed Since Last Report): N/A Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common stock, $0.001 Par Value CNCNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION

(a) On February 6, 2026, we issued a press release announcing our financial results for the fourth quarter and year ended December 31, 2025. The full text of the press release is included as Exhibit 99.1 to this report. The information contained in the website cited in the press release is not a part of this report. Additionally, we have included a presentation outlining details of our full year 2026 guidance.

The information contained in this Form 8-K, Exhibit 99.1 and Exhibit 99.2 attached hereto shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section. Nor shall such information or exhibit be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits The following exhibits relating to Item 2.02 shall be deemed to be furnished and not filed: 99.1 Press release of Centene Corporation issued February 6, 2026, as to financial results for the fourth quarter and year ended December 31, 2025 99.2 Centene Corporation 2026 Guidance Presentation

EXHIBIT INDEX

Exhibit NumberDescription 99.1*Press release of Centene Corporation issued February 6, 2026 as to financial results for the fourth quarter and year ended December 31, 2025

99.2*Centene Corporation 2026 Guidance Presentation

104Cover page information from Centene Corporation’s Current Report on Form 8-K filed on February 6, 2026 formatted in Inline Extensible Business Reporting Language (iXBRL).

*The press release and presentation are being furnished pursuant to Item 2.02, and shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange of 1934, as amended.

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:February 6, 2026By:/s/ ANDREW L. ASHER Andrew L. Asher Executive Vice President & Chief Financial Officer

cnc-202510290001071739false00010717392025-10-292025-10-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2025

CENTENE CORPORATION

(Exact Name of Registrant as Specified in Charter)

Delaware001-3182642-1406317 (State or Other Jurisdiction of Incorporation) (Commission File Number)(IRS Employer Identification No.)

7700 Forsyth Boulevard, St. Louis,Missouri63105 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code: (314) 725-4477 (Former Name or Former Address, if Changed Since Last Report): N/A Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common stock, $0.001 Par Value CNCNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION

(a) On October 29, 2025, we issued a press release announcing our financial results for the third quarter ended September 30, 2025. The full text of the press release is included as Exhibit 99.1 to this report. The information contained in the website cited in the press release is not a part of this report.

The information contained in this Form 8-K and Exhibit 99.1 attached hereto shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section. Nor shall such information or exhibit be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits The following exhibit relating to Item 2.02 shall be deemed to be furnished and not filed: 99.1 Press release of Centene Corporation issued October 29, 2025, as to financial results for the third quarter ended September 30, 2025.

EXHIBIT INDEX

Exhibit NumberDescription 99.1*Press release of Centene Corporation issued October 29, 2025 as to financial results for the third quarter ended September 30, 2025.

104Cover page information from Centene Corporation’s Current Report on Form 8-K filed on October 29, 2025 formatted in Inline Extensible Business Reporting Language (iXBRL).

*The press release is being furnished pursuant to Item 2.02, and shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange of 1934, as amended.

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 29, 2025By:/s/ ANDREW L. ASHER Andrew L. Asher Executive Vice President & Chief Financial Officer

cnc-202507250001071739false00010717392025-07-252025-07-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2025

CENTENE CORPORATION

(Exact Name of Registrant as Specified in Charter)

Delaware001-3182642-1406317 (State or Other Jurisdiction of Incorporation) (Commission File Number)(IRS Employer Identification No.)

7700 Forsyth Boulevard, St. Louis,Missouri63105 (Address of Principal Executive Offices)(Zip Code)

Registrant’s telephone number, including area code: (314) 725-4477 (Former Name or Former Address, if Changed Since Last Report): N/A Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common stock, $0.001 Par Value CNCNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION

(a) On July 25, 2025, we issued a press release announcing our financial results for the second quarter ended June 30, 2025. The full text of the press release is included as Exhibit 99.1 to this report. The information contained in the website cited in the press release is not a part of this report.

The information contained in this Form 8-K and Exhibit 99.1 attached hereto shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section. Nor shall such information or exhibit be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as expressly set forth by specific reference in such a filing.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits The following exhibit relating to Item 2.02 shall be deemed to be furnished and not filed: 99.1 Press release of Centene Corporation issued July 25, 2025, as to financial results for the second quarter ended June 30, 2025.

EXHIBIT INDEX

Exhibit NumberDescription 99.1*Press release of Centene Corporation issued July 25, 2025 as to financial results for the second quarter ended June 30, 2025.

104Cover page information from Centene Corporation’s Current Report on Form 8-K filed on July 25, 2025 formatted in Inline Extensible Business Reporting Language (iXBRL).

*The press release is being furnished pursuant to Item 2.02, and shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange of 1934, as amended.

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:July 25, 2025By:/s/ ANDREW L. ASHER Andrew L. Asher Executive Vice President & Chief Financial Officer