SSE PLC

Major Shareholding Notification • Dec 3, 2025

National Storage Mechanism | Additional information

RNS Number : 0808K

SSE PLC

03 December 2025

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB0007908733

Issuer Name

SSE 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

28-Nov-2025

6. Date on which Issuer notified

02-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	5.130766	0.790202	5.920968	71469332
Position of previous notification (if applicable)	4.342330	0.888566	5.230896

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)
GB0007908733		61931147		5.130766
Sub Total 8.A	61931147		5.130766%

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
Cash-settled Equity Swap	24/12/2025	24/12/2025	Cash	1164	0.000096
Cash-settled Equity Swap	31/12/2025	31/12/2025	Cash	1211	0.000100
Cash-settled Equity Swap	16/01/2026	16/01/2026	Cash	90026	0.007458
Cash-settled Equity Swap	20/01/2026	20/01/2026	Cash	24095	0.001996
Cash-settled Equity Swap	10/02/2026	10/02/2026	Cash	226772	0.018787
Cash-settled Equity Swap	11/02/2026	11/02/2026	Cash	295827	0.024508
Cash-settled Equity Swap	03/03/2026	03/03/2026	Cash	2141	0.000177
Cash-settled Equity Swap	05/03/2026	05/03/2026	Cash	367	0.000030
Cash-settled Equity Swap	18/03/2026	18/03/2026	Cash	101889	0.008441
Cash-settled Equity Swap	24/03/2026	24/03/2026	Cash	65925	0.005462
Cash-settled Equity Swap	02/04/2026	02/04/2026	Cash	40405	0.003347
Cash-settled Equity Swap	28/04/2026	28/04/2026	Cash	312113	0.025857
Cash-settled Equity Swap	29/04/2026	29/04/2026	Cash	10291	0.000853
Cash-settled Equity Swap	05/05/2026	05/05/2026	Cash	630903	0.052268
Cash-settled Equity Swap	07/05/2026	07/05/2026	Cash	5825	0.000483
Cash-settled Equity Swap	19/05/2026	19/05/2026	Cash	25593	0.002120
Cash-settled Equity Swap	29/05/2026	29/05/2026	Cash	93290	0.007729
Cash-settled Equity Swap	02/06/2026	02/06/2026	Cash	3570	0.000296
Cash-settled Equity Swap	10/06/2026	10/06/2026	Cash	1067	0.000088
Cash-settled Equity Swap	01/07/2026	01/07/2026	Cash	1918	0.000159
Cash-settled Equity Swap	05/08/2026	05/08/2026	Cash	402694	0.033362
Cash-settled Equity Swap	30/09/2026	30/09/2026	Cash	103467	0.008572
Cash-settled Equity Swap	02/10/2026	02/10/2026	Cash	104035	0.008619
Cash-settled Equity Swap	15/10/2026	15/10/2026	Cash	18926	0.001568
Cash-settled Equity Swap	16/10/2026	16/10/2026	Cash	1174317	0.097288
Cash-settled Equity Swap	21/10/2026	21/10/2026	Cash	4214	0.000349
Cash-settled Equity Swap	28/10/2026	28/10/2026	Cash	1390	0.000115
Cash-settled Equity Swap	03/11/2026	03/11/2026	Cash	71002	0.005882
Cash-settled Equity Swap	04/11/2026	04/11/2026	Cash	2194	0.000182
Cash-settled Equity Swap	12/11/2026	12/11/2026	Cash	14011	0.001161
Cash-settled Equity Swap	13/11/2026	13/11/2026	Cash	558803	0.046295
Cash-settled Equity Swap	17/11/2026	17/11/2026	Cash	65138	0.005396
Cash-settled Equity Swap	30/11/2026	30/11/2026	Cash	186	0.000015
Cash-settled Equity Swap	02/12/2026	02/12/2026	Cash	117663	0.009748
Cash-settled Equity Swap	07/12/2026	07/12/2026	Cash	6831	0.000566
Cash-settled Equity Swap	14/12/2026	14/12/2026	Cash	184684	0.015300
Cash-settled Equity Swap	21/12/2026	21/12/2026	Cash	9000	0.000746
Cash-settled Equity Swap	23/12/2026	23/12/2026	Cash	16354	0.001355
Cash-settled Equity Swap	31/12/2026	31/12/2026	Cash	2206	0.000183
Cash-settled Equity Swap	05/01/2027	05/01/2027	Cash	2637970	0.218546
Cash-settled Equity Swap	13/01/2027	13/01/2027	Cash	10393	0.000861
Cash-settled Equity Swap	15/01/2027	15/01/2027	Cash	174643	0.014469
Cash-settled Equity Swap	20/01/2027	20/01/2027	Cash	13958	0.001156
Cash-settled Equity Swap	04/05/2027	04/05/2027	Cash	201941	0.016730
Cash-settled Equity Swap	29/07/2027	29/07/2027	Cash	59	0.000005
Cash-settled Equity Swap	17/11/2027	17/11/2027	Cash	75947	0.006292
Cash-settled Equity Swap	30/05/2028	30/05/2028	Cash	84196	0.006975
Cash-settled Equity Swap	02/03/2029	02/03/2029	Cash	421555	0.034924
Cash-settled Equity Swap	04/04/2030	04/04/2030	Cash	67119	0.005561
Cash-settled Equity Swap	02/05/2030	02/05/2030	Cash	979522	0.081150
Cash-settled Equity Swap	02/07/2030	02/07/2030	Cash	44941	0.003723
Cash-settled Equity Swap	11/10/2030	11/10/2030	Cash	28960	0.002399
Cash-settled Equity Swap	28/11/2030	28/11/2030	Cash	670	0.000056
Cash-settled Call Option	05/12/2028	05/12/2028	Cash	4804	0.000398
Sub Total 8.B2				9538185	0.790202%

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	5.000336		5.782279%
JPMorgan Chase & Co.	J.P. Morgan SE
JPMorgan Chase & Co.	J.P. Morgan Securities LLC

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%)

JPMorgan Chase & Co.

JPMorgan Chase Holdings LLC (100%)

J.P. Morgan Broker-Dealer Holdings Inc. (100%)

J.P. Morgan Securities LLC (100%)

JPMorgan Chase & Co.

JPMorgan Chase Bank, National Association (100%)

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

J.P. Morgan SE (100%)

12. Date of Completion

02-Dec-2025

13. Place Of Completion

London

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