Ceres Power Holdings PLC

Transaction in Own Shares • Dec 15, 2025

National Storage Mechanism | Additional information

RNS Number : 6285L

Ceres Power Holdings plc

15 December 2025

CWR.L

Ceres Power Holdings plc

("Ceres Power" or "the Company")

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB00BG5KQW09

Issuer Name

CERES POWER HOLDINGS PLC

UK or Non-UK Issuer

UK

2. Reason for Notification

An acquisition or disposal of voting rights

3. Details of person subject to the notification obligation

Name

JPMorgan Chase & Co.

City of registered office (if applicable)

Country of registered office (if applicable)

US

4. Details of the shareholder

Name	City of registered office	Country of registered office
J.P. Morgan Securities plc

5. Date on which the threshold was crossed or reached

11-Dec-2025

6. Date on which Issuer notified

15-Dec-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	0.555743	4.547814	5.103557	9935464
Position of previous notification (if applicable)	N/A	N/A	N/A

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)
GB00BG5KQW09		1081873		0.555743
Sub Total 8.A	1081873		0.555743%

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
Right to recall shares lent out			7710200	3.960540
Sub Total 8.B1			7710200	3.960540%

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
Cash-settled Equity Swap	03/02/2026	03/02/2026	Cash	4473	0.002295
Cash-settled Equity Swap	02/04/2026	02/04/2026	Cash	2904	0.001489
Cash-settled Equity Swap	20/04/2026	20/04/2026	Cash	182000	0.093489
Cash-settled Equity Swap	28/04/2026	28/04/2026	Cash	630019	0.323616
Cash-settled Equity Swap	05/05/2026	05/05/2026	Cash	5237	0.002684
Cash-settled Equity Swap	04/08/2026	04/08/2026	Cash	8134	0.004171
Cash-settled Equity Swap	02/10/2026	02/10/2026	Cash	2103	0.001077
Cash-settled Equity Swap	03/11/2026	03/11/2026	Cash	5116	0.002625
Cash-settled Equity Swap	30/11/2026	30/11/2026	Cash	115600	0.059379
Cash-settled Equity Swap	02/12/2026	02/12/2026	Cash	22331	0.011470
Cash-settled Equity Swap	03/12/2026	03/12/2026	Cash	37717	0.019369
Cash-settled Equity Swap	07/12/2026	07/12/2026	Cash	50326	0.025848
Cash-settled Equity Swap	11/12/2026	11/12/2026	Cash	23613	0.012128
Cash-settled Equity Swap	19/01/2027	19/01/2027	Cash	418	0.000213
Cash-settled Equity Swap	04/06/2030	04/06/2030	Cash	8607	0.004418
Cash-settled Equity Swap	02/07/2030	02/07/2030	Cash	44793	0.023003
Sub Total 8.B2				1143391	0.587274%

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
JPMorgan Chase & Co.	J.P. Morgan Securities plc		4.547814	5.103557%

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

Chain of controlled undertakings:

JPMorgan Chase & Co.

JPMorgan Chase Bank, National Association (100%)

J.P. Morgan International Finance Limited (100%)

J.P. Morgan Capital Holdings Limited (100%)

J.P. Morgan Securities plc (100%)

12. Date of Completion

15-Dec-2025

13. Place Of Completion

London, United Kingdom

For further information visit www.ceres.tech or contact:

Ceres Power Holdings plc Patrick Yau/Merryl Black		Tel: +44 (0)7884 654179 Email: [email protected]
Ceres Power Holdings plc Dominic Murray (Company Secretary)		Tel: +44 (0)7526 196529

About Ceres

Ceres is a leading developer of clean energy technology: fuel cells for power generation and electrolysers to produce green hydrogen. Its asset-light, licensing model has seen it establish partnerships with some of the world's largest companies, such as Doosan, Delta, Denso, Shell, Weichai and Thermax. Ceres' solid oxide technology supports greater electrification of our energy systems, including AI data centres, commercial and industrial applications, and produces green hydrogen at high efficiencies as a route to decarbonise emissions-intensive industries such as ammonia, steelmaking and electrofuels. Ceres is listed on the London Stock Exchange ("LSE") (LSE: CWR) and is classified by the LSE Green Economy Mark, which recognises listed companies that derive more than 50% of their activity from the green economy.

Read more on our website www.ceres.tech or follow us on LinkedIn.

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