Holding(s) in Company
TR-1: Standard form for notification of major holdings
1. Issuer Details
ISIN
GB0007958233
Issuer Name
SENIOR 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
21-Sep-2026
6. Date on which Issuer notified
23-Sep-2026
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
2.263885
5.864518
8.128403
34091990
Position of previous notification (if applicable)
1.939219
5.865884
7.805103
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)
GB0007958233
9495145
2.263885
Sub Total 8.A
9495145
2.263885%
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
15/10/2026
15/10/2026
Cash
22342
0.005327
Cash-settled Equity Swap
30/11/2026
30/11/2026
Cash
16032
0.003822
Cash-settled Equity Swap
31/12/2026
31/12/2026
Cash
3854312
0.918967
Cash-settled Equity Swap
05/05/2027
05/05/2027
Cash
41475
0.009889
Cash-settled Equity Swap
23/06/2027
23/06/2027
Cash
629441
0.150075
Cash-settled Equity Swap
02/07/2027
02/07/2027
Cash
130335
0.031075
Cash-settled Equity Swap
02/09/2027
02/09/2027
Cash
101827
0.024278
Cash-settled Equity Swap
17/09/2027
17/09/2027
Cash
32232
0.007685
Cash-settled Equity Swap
04/10/2027
04/10/2027
Cash
31227
0.007445
Cash-settled Equity Swap
30/05/2028
30/05/2028
Cash
2404
0.000573
Cash-settled Equity Swap
22/09/2027
22/09/2027
Cash
1697649
0.404763
Cash-settled Equity Swap
22/02/2027
22/02/2027
Cash
4012024
0.956569
Cash-settled Equity Swap
23/08/2027
23/08/2027
Cash
1908401
0.455012
Cash-settled Equity Swap
22/12/2027
22/12/2027
Cash
3715325
0.885829
Cash-settled Equity Swap
11/05/2027
11/05/2027
Cash
3055443
0.728496
Cash-settled Equity Swap
27/01/2027
27/01/2027
Cash
5346376
1.274713
Sub Total 8.B2
24596845
5.864518%
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
5.864518
7.858529%
JPMorgan Chase & Co.
J.P. Morgan Markets Limited
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
If date does not apply, explain below
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 Bank, National Association (100%)
J.P. Morgan International Finance Limited (100%)
J.P. Morgan SE (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 Holdings LLC (100%)
J.P. Morgan Financial Investments Limited (100%)
J.P. Morgan Markets Limited (100%)12. Date of Completion
23-Sep-2026
13. Place Of Completion
London
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