Diversified Energy TR-1
TR-1: Standard form for notification of major holdings
1. Issuer Details
ISIN
GB00BQHP5P93
Issuer Name
Diversified Energy Company PLC
UK or Non-UK Issuer
UK
2. Reason for Notification
An event changing the breakdown of voting rights
3. Details of person subject to the notification obligation
Name
Ameriprise Financial, Inc.
City of registered office (if applicable)
Minneapolis
Country of registered office (if applicable)
United States
4. Details of the shareholder
Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above
City of registered office (if applicable)
Country of registered office (if applicable)
5. Date on which the threshold was crossed or reached
24-Nov-2025
6. Date on which Issuer notified
26-Nov-2025
7. Total positions of person(s) subject to the notification obligation
8. Notified details of the resulting situation on the date on which the threshold was crossed or reached
8A. Voting rights attached to shares
8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))
8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))
9. Information in relation to the person subject to the notification obligation
2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary)
10. In case of proxy voting
Name of the proxy holder
The number and % of voting rights held
The date until which the voting rights will be held
11. Additional Information
Columbia Management Investment Advisers, LLC is wholly owned by Ameriprise Financial, Inc.
12. Date of Completion
03-Dec-2025
13. Place Of Completion
Swindon, UK