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DTE Energy Company

DTE Energy Announces Retirement of COO and Bylaw Amendments

| 8-K |Utilities

Summary

On December 2, 2025, DTE Energy Company announced that Mark W. Stiers, President and Chief Operating Officer, will retire effective January 12, 2026, and remain in an advisory role until March 31, 2026. Additionally, on December 3, 2025, the Board of Directors adopted amendments to the Company's Bylaws to establish requirements for shareholders to bring matters before the annual meeting.

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President Resignation Bylaw Amendment

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About DTE Energy Company

DTE Energy Company is a diversified energy firm that operates primarily in the utilities sector, delivering essential services to millions of customers in the United States. The company is predominantly engaged in the generation and distribution of electricity and natural gas, serving both residential and commercial clients. DTE Energy's operations are divided into two main segments: DTE Electric and DTE Gas. DTE Electric focuses on generating and distributing electricity, utilizing a mix of energy sources, including renewables, to ensure reliable and sustainable power supply. Meanwhile, DTE Gas oversees the transmission and delivery of natural gas across its service regions. Additionally, DTE Energy is actively involved in non-utility energy businesses, which encompass various energy-related services such as power generation and industrial energy solutions. With headquarters in Detroit, Michigan, DTE Energy plays a vital role in the regional economy, supporting infrastructure development and providing energy security. The company's commitment to innovation and sustainability is evident in its efforts to transition to cleaner energy sources, aligning with broader industry trends towards environmental responsibility.

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