[8-K] DTE ENERGY CO Reports Material Event

Rhea-AI Filing Summary

DTE Energy Company filed an 8‑K furnishing the quarterly financial statements of its indirect wholly‑owned subsidiary, DTE Gas Company, for the quarter ended September 30, 2025. The statements were posted to the company’s website on October 31, 2025 and are included as Exhibit 99.1.

As stated under Item 2.02 and General Instruction B.2, this information is furnished, not filed, and is not subject to Section 18 liabilities or incorporated by reference unless expressly stated.

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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): October 31, 2025

Commission File Number: 1-11607

DTE Energy Company

Michigan						38-3217752
(State or other jurisdiction of incorporation or organization)						(I.R.S Employer Identification No.)

Registrants address of principal executive offices: One Energy Plaza, Detroit, Michigan 48226-1221

Registrants telephone number, including area code: (313) 235-4000

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:

☐ 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 Class

Trading Symbol(s)

Name of Exchange on which Registered

Common stock, without par value

DTE

New York Stock Exchange

2017 Series E 5.25% Junior Subordinated Debentures due 2077

DTW

New York Stock Exchange

2020 Series G 4.375% Junior Subordinated Debentures due 2080

DTB

New York Stock Exchange

2021 Series E 4.375% Junior Subordinated Debentures due 2081

DTG

New York Stock Exchange

2025 Series H 6.25% Junior Subordinated Debentures due 2085

DTK

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under Exchange Act (17 CFR 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 2.02. Results of Operations and Financial Condition.

DTE Energy Company (“DTE Energy”) is furnishing the Securities and Exchange Commission (“SEC”) the financial statements for its indirect wholly-owned subsidiary, DTE Gas Company, for the quarter ended September 30, 2025. The financial statements were posted to DTE Energy's website at www.dteenergy.com on October 31, 2025. The financial statements are furnished as Exhibit 99.1 and incorporated herein by reference.

In accordance with General Instruction B.2 of Form 8-K, the information contained in this Current Report on Form 8-K under Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1			Financial Statements of DTE Gas Company for the quarter ended September 30, 2025.
104			Cover Page Interactive Data File (embedded within the Inline XBRL document).

Forward-Looking Statements:

This Form 8-K contains forward-looking statements that are subject to various assumptions, risks and uncertainties. It should be read in conjunction with the “Forward-Looking Statements” section in DTE Energy's 2024 Form 10-K and 2025 Form 10-Qs (which sections are incorporated by reference herein), and in conjunction with other SEC reports filed by DTE Energy that discuss important factors that could cause DTE Energy's actual results to differ materially. DTE Energy expressly disclaims any current intention to update any forward-looking statements contained in this report as a result of new information or future events or developments.

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: October 31, 2025

DTE Energy Company

(Registrant)

/s/Tracy J. Myrick

Tracy J. Myrick

Chief Accounting Officer

FAQ

What did DTE Energy (DTB) report in this 8‑K?

It furnished the quarterly financial statements of its indirect wholly‑owned subsidiary, DTE Gas Company, as Exhibit 99.1.

What period do the DTE Gas financial statements cover?

They cover the quarter ended September 30, 2025.

When were the financial statements made available online?

They were posted to the company’s website on October 31, 2025.

Are the furnished DTE Gas financials considered 'filed' with the SEC?

No. Under Item 2.02 and General Instruction B.2, the information is furnished, not filed.

Where can I find the DTE Gas quarterly financials in the 8‑K?

They are attached as Exhibit 99.1.

Does this 8‑K incorporate the furnished information by reference?

No, unless an SEC filing expressly states such incorporation.