Company: DTK
Filing Date: 2025-09-09
Form Type: 424B5
Source: 0001193125-25-198859
Chunk: 10

Company: DTE ENERGY CO
Filing Date: 2025-09-09
Form: 424B5
Chunk 10
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 (excluding guarantees and short-term borrowings), on an unconsolidated basis, was approximately $6.7 billion. At June 30, 2025, our principal subsidiaries, DTE Electric and DTE Gas, had approximately $15.1 billion of outstanding indebtedness (excluding guarantees and short-term borrowings), consisting primarily of secured indebtedness, which would effectively rank senior to the notes. We and our subsidiaries may incur additional indebtedness and other liabilities in the future. Maturity and Payment The 2023 Series C notes will mature on June 1, 2028 and will bear interest at the rate of 4.875% per year from June 1, 2025 (the most recent interest payment date for the initial 2023 Series C notes). Accordingly, the purchase price for the 2023 Series C notes will include interest that will be deemed to have accrued on the 2023 Series C notes from June 1, 2025 to, but excluding, the delivery date of the 2023 Series C notes, which is expected to be September , 2025. We will pay interest on the 2023 Series C notes in arrears on June 1 and December 1 of each year, beginning December 1, 2025. The 2025 Series I notes will mature on and will bear interest at the rate set forth on the cover page of this prospectus supplement from the date of original issuance, or the most recent interest payment date to which interest has been paid or duly provided for. We will pay interest on the 2025 Series I notes in arrears on and of each year, beginning , 2026. Interest on the notes will be paid to the persons in whose names the applicable notes are registered at the close of business on the date (whether or not such day is a business day) fifteen calendar days immediately preceding the applicable interest payment date. The amount of interest payable will be computed on the basis of a 360-dayyear consisting of twelve 30-daymonths. “Business day” means any day other than a day on which banking institutions in the state of New York or the state of Michigan are authorized or obligated pursuant to law or executive order to close. In the event that any interest payment date, redemption date or maturity date is not a business day, then the required payment of principal, premium, if any, and interest will be made on the next succeeding day that is a business day (and without any interest or other payment in