SSE PLC

Major Shareholding Notification • Nov 28, 2025

National Storage Mechanism | Additional information

RNS Number : 4880J

SSE PLC

28 November 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; An acquisition or disposal of financial instruments

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

25-Nov-2025

6. Date on which Issuer notified

27-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	3.238928	1.173931	4.412859	53264421
Position of previous notification (if applicable)	3.184819	2.175757	5.360576

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		39092554		3.238928
Sub Total 8.A	39092554		3.238928%

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 outs	n/a	n/a	4028523	0.333765
Sub Total 8.B1			4028523	0.333765%

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	28/11/2025	28/11/2025	Cash	1176	0.000097
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	234879	0.019458
Cash-settled Equity Swap	11/02/2026	11/02/2026	Cash	295827	0.024504
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	63277	0.005226
Cash-settled Equity Swap	02/04/2026	02/04/2026	Cash	38783	0.003207
Cash-settled Equity Swap	28/04/2026	28/04/2026	Cash	306113	0.025353
Cash-settled Equity Swap	29/04/2026	29/04/2026	Cash	11274	0.000934
Cash-settled Equity Swap	05/05/2026	05/05/2026	Cash	630903	0.052270
Cash-settled Equity Swap	07/05/2026	07/05/2026	Cash	5825	0.000465
Cash-settled Equity Swap	19/05/2026	19/05/2026	Cash	25893	0.002144
Cash-settled Equity Swap	29/05/2026	29/05/2026	Cash	96870	0.008024
Cash-settled Equity Swap	02/06/2026	02/06/2026	Cash	3570	0.000294
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	0.000158
Cash-settled Equity Swap	02/07/2026	02/07/2026	Cash	28424	0.002353
Cash-settled Equity Swap	05/08/2026	05/08/2026	Cash	456390	0.037804
Cash-settled Equity Swap	30/09/2026	30/09/2026	Cash	61526	0.005088
Cash-settled Equity Swap	02/10/2026	02/10/2026	Cash	199467	0.016520
Cash-settled Equity Swap	15/10/2026	15/10/2026	Cash	18926	0.001564
Cash-settled Equity Swap	16/10/2026	16/10/2026	Cash	1222008	0.101247
Cash-settled Equity Swap	21/10/2026	21/10/2026	Cash	7604	0.000628
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	138909	0.011502
Cash-settled Equity Swap	04/11/2026	04/11/2026	Cash	23703	0.001962
Cash-settled Equity Swap	12/11/2026	12/11/2026	Cash	12533	0.001035
Cash-settled Equity Swap	13/11/2026	13/11/2026	Cash	402684	0.033357
Cash-settled Equity Swap	17/11/2026	17/11/2026	Cash	55548	0.004601
Cash-settled Equity Swap	25/11/2026	25/11/2026	Cash	8588	0.000711
Cash-settled Equity Swap	02/12/2026	02/12/2026	Cash	117642	0.009723
Cash-settled Equity Swap	07/12/2026	07/12/2026	Cash	11123	0.000919
Cash-settled Equity Swap	14/12/2026	14/12/2026	Cash	168309	0.013927
Cash-settled Equity Swap	21/12/2026	21/12/2026	Cash	9000	0.000745
Cash-settled Equity Swap	23/12/2026	23/12/2026	Cash	13933	0.001146
Cash-settled Equity Swap	05/01/2027	05/01/2027	Cash	3187813	0.264095
Cash-settled Equity Swap	13/01/2027	13/01/2027	Cash	9592	0.000793
Cash-settled Equity Swap	19/01/2027	19/01/2027	Cash	3572	0.000293
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	0.000004
Cash-settled Equity Swap	17/11/2027	17/11/2027	Cash	72588	0.006013
Cash-settled Equity Swap	19/11/2027	19/11/2027	Cash	24186	0.002003
Cash-settled Equity Swap	30/05/2028	30/05/2028	Cash	229710	0.019028
Cash-settled Equity Swap	02/03/2029	02/03/2029	Cash	468260	0.038796
Cash-settled Equity Swap	04/04/2030	04/04/2030	Cash	67119	0.005559
Cash-settled Equity Swap	02/05/2030	02/05/2030	Cash	903950	0.074879
Cash-settled Equity Swap	02/07/2030	02/07/2030	Cash	44751	0.003705
Cash-settled Equity Swap	11/10/2030	11/10/2030	Cash	28960	0.002398
Cash-settled Call Option	05/12/2028	05/12/2028	Cash	4868	0.000403
Sub Total 8.B2				10143344	0.840166%

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	3.208009		4.373680%
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

27-Nov-2025

13. Place Of Completion

London, United Kingdom

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