Company: DTK
Filing Date: 2025-09-10
Form Type: 424B2
Source: 0001193125-25-199964
Chunk: 39

Company: DTE ENERGY CO
Filing Date: 2025-09-10
Form: 424B2
Chunk 39
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 in Section 309A of the SFA) that the notes are “prescribed capital markets
products” (as defined in the CMP Regulations 2018) and Excluded Investment Products (as defined in MAS Notice SFA 04-N12: Notice on the Sale of Investment Products and MAS Notice FAA-N16: Notice on Recommendations on Investment Products).

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Switzerland

This prospectus supplement and the accompanying prospectus are not intended to constitute an offer or solicitation to purchase or invest in the
notes. The notes may not be publicly offered, directly or indirectly, in Switzerland within the meaning of the Swiss Financial Services Act (“FinSA”) and no application has or will be made to admit the notes to trading on any trading
venue (exchange or multilateral trading facility) in Switzerland. Neither this prospectus supplement and the accompanying prospectus nor any other offering or marketing material relating to the notes constitutes a prospectus pursuant to the FinSA or
a listing prospectus within the meaning of the listing rules of the Swiss Exchange or any other regulated trading facility in Switzerland, and neither this prospectus supplement and the accompanying prospectus nor any other offering or marketing
material relating to the notes may be publicly distributed or otherwise made publicly available in Switzerland.

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LEGAL MATTERS

The validity of the notes and certain other legal matters relating to this offering will be passed upon for DTE Energy by Kathrine M. Lorenz,
Senior Vice President and Chief Legal Officer. Ms. Lorenz beneficially owns shares of DTE Energy common stock.

Certain legal matters
relating to this offering will be passed upon for the underwriters by Bracewell LLP. Bracewell LLP has represented, and may in the future continue to represent, certain of our subsidiaries in certain matters unrelated to this offering.

EXPERTS

The financial statements of DTE Energy Company and management’s assessment of the effectiveness of internal control over financial
reporting (which is included in Management’s Report on Internal Control over Financial Reporting) incorporated in this prospectus supplement by reference to the DTE Energy Company Annual Report on Form
10-K for the year ended December 31, 2024 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of
said firm as experts in auditing and accounting.

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Prospectus DTE Energy Company Common Stock Debt Securities Stock Purchase Contracts Stock Purchase Units By this prospectus, DTE Energy Company may offer from