Senior PLC — Major Shareholding Notification 2026

Apr 23, 2026

National Storage Mechanism | Additional information

RNS Number : 7062B

Senior PLC

23 April 2026

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; 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

20-Apr-2026

6. Date on which Issuer notified

22-Apr-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	1.694539	3.766542	5.461081	22904963
Position of previous notification (if applicable)	4.052476	1.311368	5.363844

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		7107241		1.694539%
Sub Total 8.A	7107241		1.694539%

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			10460200	2.493975%
Sub Total 8.B1			10460200	2.493975%

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	20/08/2026	20/08/2026	Cash	3620565	0.863233
Cash-settled Equity Swap	24/08/2026	24/08/2026	Cash	629441	0.150074
Cash-settled Equity Swap	15/10/2026	15/10/2026	Cash	31961	0.007617
Cash-settled Equity Swap	23/12/2026	23/12/2026	Cash	543711	0.129634
Cash-settled Equity Swap	05/05/2027	05/05/2027	Cash	93598	0.022305
Cash-settled Equity Swap	17/05/2027	17/05/2027	Cash	11332	0.002701
Cash-settled Equity Swap	27/05/2027	27/05/2027	Cash	655	0.000156
Cash-settled Equity Swap	02/06/2027	02/06/2027	Cash	96516	0.023011
Cash-settled Equity Swap	13/10/2027	13/10/2027	Cash	301151	0.071791
Cash-settled Equity Swap	30/05/2028	30/05/2028	Cash	89	0.000021
Cash-settled Equity Swap	02/05/2029	02/05/2029	Cash	8503	0.002024
Sub Total 8.B2				5337522	1.272567%

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		3.766542	4.422162%
JPMorgan Chase & Co.	J.P. Morgan Markets Limited
JPMorgan Chase & Co.	J.P. Morgan SE
JPMorgan Chase & Co.	JPMorgan Chase Bank, National Association
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 Financial Investments Limited (100%)

J.P. Morgan Markets Limited (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 Bank, National Association (100%)

12. Date of Completion

22-Apr-2026

13. Place Of Completion

London

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