Company: DTG
Filing Date: 2025-12-19
Form Type: 424B5
Source: 0001193125-25-326903
Chunk: 2

Company: DTE ENERGY CO
Filing Date: 2025-12-19
Form: 424B5
Chunk 2
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 shares of our common stock. Subject to the terms and conditions of the equity distribution agreement, each of the Managers and the Forward Sellers will use commercially reasonable efforts to sell any shares of our common stock to be offered by us under the equity distribution agreement. See “Plan of Distribution (Conflicts of Interest).” We will not initially receive any proceeds from the sale of borrowed shares of our common stock by the Forward Sellers. We expect to physically settle each particular forward sale agreement (by delivery of shares of our common stock) with the relevant Forward Purchaser on one or more dates specified by us on or prior to the maturity date of that particular forward sale agreement, in which case we will expect to receive aggregate net cash proceeds at settlement equal to the number of shares of our common stock underlying the particular forward sale agreement multiplied by the relevant forward sale price. If we elect to cash settle or net share settle a forward sale agreement, we may not (in the case of cash settlement) or will not (in the case of net share settlement) receive any proceeds, and we may owe cash (in the case of cash settlement) or shares of our common stock (in the case of net share settlement) to the relevant Forward Purchaser. See “Plan of Distribution (Conflicts of Interest).” Shares of our common stock trade on the NYSE under the symbol “DTE.” On December 18, 2025, the last sale price of our common stock as reported on the NYSE was $129.90 per share. Investing in shares of our common stock involves risks. See “ Risk Factors” on page S-7of this prospectus supplement, as well as the risks identified in our Annual Report on Form 10-Kfor our most recently completed fiscal year and other filings we make with the Securities and Exchange Commission (the “SEC”) from time to time, which are incorporated herein by reference. Neither the SEC nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus supplement or the accompanying prospectus. Any representation to the contrary is a criminal offense.

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| Citigroup |     | Fifth Third Securities |     | J.P. Morgan   |     | KeyBanc Capital Markets |     | Mizuho                 |     | Morgan Stanley |
| MUFG      |