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): September 17, 2025

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):

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

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) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2).

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 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

On September 17, 2025, the Limited Liability Company Agreement of CenterPoint Energy Restoration Bond Company II, LLC, a Delaware limited liability company (the “Issuing Entity”), was amended and restated (the “A&R LLC Agreement”) in the form previously disclosed on the Issuing Entity’s Current Report on Form 8-K filed with the Securities and Exchange Commission on September 11, 2025 and described in the Prospectus (as defined below). The A&R LLC Agreement was adopted by CenterPoint Energy Houston Electric, LLC, a Texas limited liability company (“CenterPoint Houston”), the sole member of the Issuing Entity.

Item 8.01. Other Events

On September 17, 2025, the Issuing Entity issued $401,521,000 aggregate principal amount of its Series 2025-A Senior Secured System Restoration Bonds (the “System Restoration Bonds”), pursuant to an Indenture, dated as of September 17, 2025, by and among the Issuing Entity, U.S. Bank Trust Company, National Association, as indenture trustee (the “Trustee”), and U.S. Bank National Association, as securities intermediary, as supplemented by the Series Supplement (together, the “Indenture”), dated as of September 17, 2025, by and between the Issuing Entity and the Trustee. The System Restoration Bonds were offered pursuant to the Prospectus dated September 9, 2025 (the “Prospectus”). In connection with the issuance of the System Restoration Bonds, CenterPoint Houston and the Issuing Entity are filing the exhibits listed in Item 9.01, which are annexed hereto as exhibits to this Current Report on Form 8-K.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

Date: September 17, 2025