Company: DTK
Filing Date: 2025-09-10
Form Type: 424B2
Source: 0001193125-25-199964
Chunk: 40

Company: DTE ENERGY CO
Filing Date: 2025-09-10
Form: 424B2
Chunk 40
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 time to time:

| • |     | common stock; |

| • |     | senior debt securities and/or subordinated debt securities, including debt securities convertible into common 
 stock of DTE Energy or exchangeable for other securities;                                                     |

| • |     | Stock Purchase Contracts; and |

| • |     | Stock Purchase Units. |

We will provide specific terms of the securities, including the offering prices, in supplements to this prospectus. The supplements may also add, update or change information contained in this prospectus. You should read this prospectus and any supplements carefully before you invest. We may offer these securities directly or through underwriters, agents or dealers. This prospectus may also be used by a selling security holder of the securities described herein. The supplements to this prospectus will describe the terms of any particular plan of distribution, including any underwriting arrangements, and will identify any selling security holders. See the “ Plan of Distribution” section beginning on page 32 of this prospectus for more information. See “ Risk Factors” beginning on page 3 regarding risks associated with an investment in these securities. The mailing address of DTE Energy Company’s principal executive office is One Energy Plaza, Detroit, Michigan 48226-1221, and its telephone number is (313) 235-4000. DTE Energy Company’s common stock is traded on the New York Stock Exchange under the symbol “DTE.” Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense. This prospectus is dated April 4, 2025

TABLE OF CONTENTS

|                                                            |     | Page |    |
| About This Prospectus                                      |     |      |  2 |
| Risk Factors                                               |     |      |  3 |
| Cautionary Statements Regarding Forward-Looking Statements |     |      |  4 |
| DTE Energy Company                                         |     |      |  6 |
| Use of Proceeds                                            |     |      |  7 |
| The Securities That We May Offer                           |     |      |  8 |
| Description of Capital Stock                               |     |      |  9 |
| Description of Debt Securities                             |     |      | 12 |
| Description of Stock Purchase Contracts and Stock Purchase 
 Units                                                      |     |      | 29 |
| Book-Entry Securities                                      |     |