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 

.	% of voting rights attached to shares (total of 8.A)	% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)	Total of both in % (8.A + 8.B)	Total number of voting rights held in issuer
Resulting situation on the date on which threshold was crossed or reached	4.792000	0.000000	4.792000	3855318
Position of previous notification (if applicable)	5.019000	0.000000	5.019000

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached

8A. Voting rights attached to shares 

Class/Type of shares ISIN code(if possible)	Number of direct voting rights (DTR5.1)	Number of indirect voting rights (DTR5.2.1)	% of direct voting rights (DTR5.1)	% of indirect voting rights (DTR5.2.1)
GB00BQHP5P93	0	3855318	0.000000	4.792000
Sub Total 8.A	3855318		4.792000%

8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))

Type of financial instrument	Expiration date	Exercise/conversion period	Number of voting rights that may be acquired if the instrument is exercised/converted	% of voting rights
Sub Total 8.B1

8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))

Type of financial instrument	Expiration date	Exercise/conversion period	Physical or cash settlement	Number of voting rights	% of voting rights
Sub Total 8.B2

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)

Ultimate controlling person	Name of controlled undertaking	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
Ameriprise Financial, Inc.		0.000000	0.000000	0.000000%
Ameriprise Financial, Inc.	Columbia Management Investment Advisers, LLC	0.000000	0.000000	0.000000%

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