DTE ENERGY CO

For the period ended Sep 30, 2026. Filed Nov 5, 2026.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 5, 2026

DTE$138.35+2.4%Stored close · as of Nov 9, 2026

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Contents

Item 6. Exhibits

Exhibit Number	Description	DTEEnergy	DTEElectric
	(i) Exhibits filed herewith:
4.1	Fifty-Seventh Supplemental Indenture dated as of September 1, 2026, to Indenture of Mortgage and Deed of Trust, dated as of March 1, 1944, between DTE Gas Company and Citibank, N.A., trustee (2026 Series D, E and F)	X
31.1	Chief Executive Officer Section 302 Form 10-Q Certification of Periodic Report	X
31.2	Chief Financial Officer Section 302 Form 10-Q Certification of Periodic Report	X
31.3	Chief Executive Officer Section 302 Form 10-Q Certification of Periodic Report		X
31.4	Chief Financial Officer Section 302 Form 10-Q Certification of Periodic Report		X
101.INS	XBRL Instance Document - The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.	X	X
101.SCH	XBRL Taxonomy Extension Schema	X	X
101.CAL	XBRL Taxonomy Extension Calculation Linkbase	X	X
101.DEF	XBRL Taxonomy Extension Definition Database	X	X
101.LAB	XBRL Taxonomy Extension Label Linkbase	X	X
101.PRE	XBRL Taxonomy Extension Presentation Linkbase	X	X
	(ii) Exhibits furnished herewith:
32.1	Chief Executive Officer Section 906 Form 10-Q Certification of Periodic Report	X
32.2	Chief Financial Officer Section 906 Form 10-Q Certification of Periodic Report	X
32.3	Chief Executive Officer Section 906 Form 10-Q Certification of Periodic Report		X
32.4	Chief Financial Officer Section 906 Form 10-Q Certification of Periodic Report		X
	(iii) Exhibit incorporated by reference:
2.1	Purchase and Sale Agreement, dated as of November 1, 2026, by and between DTE Energy Company and Velocity BidCo LLC (incorporated herein by reference to Exhibit 2.1 to DTE Energy's Current Report on Form 8-K filed November 5, 2026)	X

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