Item 9B. Other Information

Insider Trading Arrangements and Policies

During the quarter ended December 31, 2024, no DTE Energy directors or officers adopted or terminated any Rule 10b5-1 trading arrangements or non-Rule 10b5-1 trading arrangements.

DTE Energy has adopted policies and procedures governing the purchase, sale, and/or other dispositions of its securities by directors, officers and employees. These policies and procedures are reasonably designed to promote compliance with insider trading laws, rules and regulations, as well as any applicable listing standards. It is DTE Energy's policy to comply with all applicable laws when engaging in transactions in its securities.

A copy of these policies and procedures is included with this filing as Exhibit 19.1.

Other Information

None.