Item 8.01
CENTERPOINT ENERGY INC
Item 8.01 section not located in normalized markdown
**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. EmployerIdentification 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 | The New York Stock Exchange | | | CenterPoint Energy Resources Corp. | 6.625% Senior Notes due 2037 | 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. ¨ **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.
Market reaction
Issuer share price following the disclosure
Closing prices for CENTERPOINT ENERGY INC’s common stock (CNP) around the filing date, set against the S&P 500 over the same period. The baseline is the last close preceding the filing date; percentage changes are computed on prices adjusted for splits and dividends.
| Offset | Close date | Close | Change from pre-filing close | S&P 500, same period |
|---|---|---|---|---|
| Pre-filing close (baseline) | 2026-09-11 | $39.11 | — | — |
| Filing date | 2026-09-14 | $38.65 | −1.2% | −0.4% |
| 1 day after filing | 2026-09-15 | $37.98 | −2.9% | −0.9% |
| 3 days after filing | Not yet matured | |||
| 14 days after filing | Not yet matured | |||
| 1 month after filing | Not yet matured | |||
| 3 months after filing | Not yet matured | |||
| 6 months after filing | Not yet matured | |||
Filings accepted by EDGAR after 5:30 p.m. Eastern are dated the following business day, so the filing date shown is generally the first session in which the market could respond. Offsets falling on non-trading days resolve to the next session. End-of-day price data provided by Tiingo.
Comparable filings
Structurally comparable filings in the corpus
Ranked by structural similarity over the extracted incident:v2 axes (attack source, data classes, materiality determinations, disclosure basis, records scale). Click any row to read that filing alongside its own extraction registry.
- Nutex Health Inc.NUTX8-K · Filed 2026-08-24 · Item 8.01 · +2.6% at 14 days · S&P 500 0.0%unauthorized activity involving data stored on its computer networkOwn systemsPIIOp deniedItem 8.01 voluntary
- HEALTHSTREAM INCHSTM8-K · Filed 2026-07-29 · Item 8.01 · −1.7% at 14 days · S&P 500 +4.3%unauthorized access to corporate file serverOwn systemsPIIOp deniedItem 8.01 voluntary
- CLOVER HEALTH INVESTMENTS, CORP. /DECLOV8-K · Filed 2026-07-17 · Item 8.01 · −5.2% at 14 days · S&P 500 −0.5%unauthorized access to employee accounts via social engineeringOwn systemsPIIOp deniedItem 8.01 voluntary
- GLOBE LIFE INC.GL8-K · Filed 2024-10-17 · Item 8.01 · −4.8% at 14 days · S&P 500 −2.3%extortion attemptOwn systemsPIIOp deniedItem 8.01 voluntary
- ADT Inc.ADT8-K · Filed 2024-08-08 · Item 8.01 · +3.8% at 14 days · S&P 500 +7.2%unauthorized access to customer order databasesOwn systemsPIIOp deniedItem 8.01 voluntary