Company: DTG
Filing Date: 2025-12-19
Form Type: 424B5
Source: 0001193125-25-326903
Chunk: 44

Company: DTE ENERGY CO
Filing Date: 2025-12-19
Form: 424B5
Chunk 44
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 an aggregate principal amount equal to the aggregate principal amount of the debt securities then outstanding with respect to which this covenant is made and meeting certain other requirements in the indenture. |

“Debt”means:

| • |     | indebtedness for borrowed money evidenced by a bond, debenture, note or other written instrument or agreement by 
 which we are obligated to repay such borrowed money; and                                                         |

| • |     | any guaranty by DTE Energy of any such indebtedness of another person. |

“Lien”means any mortgage, pledge, security interest, encumbrance, lien or charge of any kind (including, without limitation, any conditional sale or other title retention agreement or lease in the nature thereof or any agreement to give any security interest). “Secured Debt”means Debt created, issued, incurred or assumed by DTE Energy that is secured by a Lien upon any shares of stock of any Significant Subsidiary, as defined in Regulation S-Xof the rules and regulations under the Securities Act, whether owned at the date of the initial authentication and delivery of the debt securities of any series or thereafter acquired. Consolidation, Merger and Sale of Assets DTE Energy may, without the consent of the holders of the debt securities, consolidate or merge with or into, or convey, transfer or lease our properties and assets as an entirety or substantially as an entirety to, any 17

person or permit any person to consolidate with or merge into us or convey, transfer or lease its properties and assets substantially as an entirety to us, as long as:

| • |     | if DTE Energy merges into or consolidates with, or transfers its properties and assets as an entirety (or                                                                                                                      
 substantially as an entirety) to any person, such person is a corporation, partnership or trust, organized and validly existing under the laws of the United States of America, any state thereof or the District of Columbia; |

| • |     | any successor person (if not DTE Energy) assumes by supplemental indenture, the due and punctual payment of the                                                                                                                                        
 principal of, any premium and interest on and any additional amounts with respect to all the debt securities issued thereunder, and the performance of our obligations under the indenture and the debt securities issued thereunder, and provides for 
 conversion or exchange rights in accordance with the provisions of the debt securities of any series that are convertible or exchangeable into common stock or other securities;                                                                       |

| • |     | no event of