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Form 8-K

sec.gov

8-K — CENTERPOINT ENERGY INC

Accession: 0001104659-26-107560

Filed: 2026-09-14

Period: 2026-09-14

CIK: 0001130310

SIC: 4911 (ELECTRIC SERVICES)

Item: Other Events

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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 14, 2026

Registrant, State or Other Jurisdiction

of Incorporation or Organization

Commission file number

Address of Principal Executive Offices, Zip Code

and Telephone Number

I.R.S. Employer

Identification No.

1-31447

CenterPoint Energy, Inc.

74-0694415

(a Texas corporation)

1111 Louisiana Street

Houston

Texas

77002

(713)

207-1111

1-3187

CenterPoint Energy Houston Electric, LLC

22-3865106

(a Texas limited liability company)

1111 Louisiana Street

Houston

Texas

77002

(713)

207-1111

1-3265

CenterPoint Energy Resources Corp.

76-0511406

(a Delaware corporation)

1111 Louisiana Street

Houston

Texas

77002

(713)

207-1111

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:

Registrants

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

CenterPoint Energy, Inc.

Common Stock, $0.01 par value

CNP

The New York Stock Exchange

NYSE Texas

CenterPoint Energy Houston Electric, LLC

6.95% General Mortgage Bonds due 2033

n/a

The New York Stock Exchange

CenterPoint Energy Resources Corp.

6.625% Senior Notes due 2037

n/a

The New 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) 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. ¨

Co-Registrant CIK

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Item 8.01 Other Events.

In

September 2026, CenterPoint Energy, Inc. (the “Company”) became aware of an online post by a third party claiming

to have obtained a data set containing certain of the Company’s customer information. Upon becoming aware of the post, the Company promptly took action and activated its cybersecurity incident response

protocols, initiated an investigation with the assistance of third-party cybersecurity experts, and took steps to further protect

the Company’s systems.

The Company’s delivery of electric and gas services has not been

impacted and remains operational and undisrupted. As of the date of this filing, the Company does not believe it is reasonably likely

that there will be a material impact on the Company’s financial condition or results of operations.

While the investigation remains ongoing, the Company has determined

that an unauthorized third party obtained personal information relating to a portion of the Company’s customers through one of the

Company’s external facing systems (the “Incident”). The Company is continuing to work with third-party experts to determine

the scope of customers and personal information affected by the Incident and intends to notify affected customers and regulatory authorities

as required by applicable law. The Company reported the matter to law enforcement authorities and has notified certain regulatory authorities

of the issue.

The Company has incurred, and expects to continue to incur, certain

expenses related to the Incident and its response to the Incident. The Company maintains customary cybersecurity insurance coverage and

believes this insurance will offset related costs.

Forward-Looking Statements

This Current Report on Form 8-K (the “Current Report”)

may contain “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange

Act. All statements other than statements of historical fact included in this Current Report are forward-looking statements made in good

faith by us and are intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act

of 1995. When used in this Current Report, the words “continue,” “may,” “potential,” “will”

or other similar words are intended to identify forward-looking statements. These forward-looking statements are based upon assumptions

of management which are believed to be reasonable at the time made and are subject to significant risks and uncertainties. Actual events

and results may differ materially from those expressed or implied by these forward-looking statements. The Company assumes no obligation

and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events or otherwise,

except as required by securities and other applicable laws. Forward-looking statements include, but are not limited to, our expectations

regarding any impact on the Company’s financial condition or results of operations, the timing and nature of expenses in connection

with the Incident, availability of insurance and potential impact on customers and the Company. Each forward-looking statement contained

in this Current Report speaks only as of the date of this report. Important factors that could cause actual results to differ materially

from those indicated by the provided forward-looking information include risks and uncertainties relating to (1) the timing and nature

of any remediation expenses incurred in connection with the Incident, (2) the availability of cybersecurity insurance proceeds, (3) the

extent of regulatory compliance obligations, (4) the risk that the scope of the Incident is greater than initially expected and (5) other

factors discussed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, the Company’s Quarterly

Reports on Form 10-Q for the quarters ended March 31, 2026 and June 30, 2026 and other reports the Company may file from time to time

with the Securities and Exchange Commission.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number

Exhibit Description

104

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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.

CENTERPOINT ENERGY, INC.

Date: September 14, 2026

By:

/s/ Russell K. Wright

Russell K. Wright

Vice President and Chief Accounting Officer

CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC.

Date: September 14, 2026

By:

/s/ Russell K. Wright

Russell K. Wright

Vice President and Chief Accounting Officer

CENTERPOINT ENERGY RESOURCES CORP.

Date: September 14, 2026

By:

/s/ Russell K. Wright

Russell K. Wright

Vice President and Chief Accounting Officer

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