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
04-Dec-2025
6. Date on which Issuer notified
08-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 | 6.262834 | 0.856468 | 7.119302 | 85936991 |
| Position of previous notification (if applicable) | 5.529208 | 0.819051 | 6.348259 | |
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 | | 75596611 | | 6.262834 |
| Sub Total 8.A | 75596611 | 6.262834% | ||
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 |
| Depository Receipt | | | 100 | 0.000008 |
| Sub Total 8.B1 | | 100 | 0.000008% | |
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 | 0.007457 |
| 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 | 223258 | 0.018495 |
| Cash-settled Equity Swap | 11/02/2026 | 11/02/2026 | Cash | 305607 | 0.025313 |
| 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 | 65261 | 0.005390 |
| Cash-settled Equity Swap | 02/04/2026 | 02/04/2026 | Cash | 39999 | 0.003313 |
| Cash-settled Equity Swap | 28/04/2026 | 28/04/2026 | Cash | 464009 | 0.038432 |
| Cash-settled Equity Swap | 29/04/2026 | 29/04/2026 | Cash | 11112 | 0.000920 |
| Cash-settled Equity Swap | 05/05/2026 | 05/05/2026 | Cash | 630903 | 0.052267 |
| 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 | 25694 | 0.002127 |
| Cash-settled Equity Swap | 29/05/2026 | 29/05/2026 | Cash | 91880 | 0.007609 |
| Cash-settled Equity Swap | 02/06/2026 | 02/06/2026 | Cash | 3570 | 0.000295 |
| 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 | 05/08/2026 | 05/08/2026 | Cash | 371017 | 0.030734 |
| Cash-settled Equity Swap | 30/09/2026 | 30/09/2026 | Cash | 200165 | 0.016560 |
| Cash-settled Equity Swap | 02/10/2026 | 02/10/2026 | Cash | 95857 | 0.007941 |
| Cash-settled Equity Swap | 15/10/2026 | 15/10/2026 | Cash | 18432 | 0.001522 |
| Cash-settled Equity Swap | 21/10/2026 | 21/10/2026 | Cash | 3151 | 0.000260 |
| 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 | 30685 | 0.002540 |
| Cash-settled Equity Swap | 06/11/2026 | 06/11/2026 | Cash | 1164153 | 0.096445 |
| Cash-settled Equity Swap | 12/11/2026 | 12/11/2026 | Cash | 19166 | 0.001581 |
| Cash-settled Equity Swap | 13/11/2026 | 13/11/2026 | Cash | 845450 | 0.070038 |
| Cash-settled Equity Swap | 17/11/2026 | 17/11/2026 | Cash | 63366 | 0.005249 |
| Cash-settled Equity Swap | 02/12/2026 | 02/12/2026 | Cash | 128477 | 0.010628 |
| Cash-settled Equity Swap | 07/12/2026 | 07/12/2026 | Cash | 2704 | 0.000222 |
| Cash-settled Equity Swap | 14/12/2026 | 14/12/2026 | Cash | 209872 | 0.017381 |
| 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 | 14688 | 0.001205 |
| Cash-settled Equity Swap | 31/12/2026 | 31/12/2026 | Cash | 2206 | 0.000182 |
| Cash-settled Equity Swap | 05/01/2027 | 05/01/2027 | Cash | 2463102 | 0.204056 |
| Cash-settled Equity Swap | 13/01/2027 | 13/01/2027 | Cash | 15087 | 0.001247 |
| Cash-settled Equity Swap | 15/01/2027 | 15/01/2027 | Cash | 366399 | 0.030348 |
| Cash-settled Equity Swap | 20/01/2027 | 20/01/2027 | Cash | 54116 | 0.004478 |
| Cash-settled Equity Swap | 04/05/2027 | 04/05/2027 | Cash | 319851 | 0.026493 |
| 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 | 165810 | 0.013730 |
| Cash-settled Equity Swap | 30/05/2028 | 30/05/2028 | Cash | 82155 | 0.006804 |
| Cash-settled Equity Swap | 02/03/2029 | 02/03/2029 | Cash | 377477 | 0.031272 |
| 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 | 1073079 | 0.088892 |
| Cash-settled Equity Swap | 02/07/2030 | 02/07/2030 | Cash | 50956 | 0.004220 |
| 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 | 0.000055 |
| Cash-settled Call Option | 05/12/2028 | 05/12/2028 | Cash | 4665 | 0.000386 |
| Sub Total 8.B2 | | 10340280 | 0.856460% | ||
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 | 6.212221 | | 7.060421% |
| 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
08-Dec-2025
13. Place Of Completion
London
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