John Wood Group PLC

Major Shareholding Notification • Nov 19, 2025

National Storage Mechanism | Additional information

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB00B5N0P849

Issuer Name

JOHN WOOD GROUP 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

17-Nov-2025

6. Date on which Issuer notified

19-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	0.923912	5.208369	6.132281	42426185
Position of previous notification (if applicable)	0.636712	5.239067	5.875779

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)
GB00B5N0P849		6392007		0.923912
Sub Total 8.A	6392007		0.923912%

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	03/12/2025	03/12/2025	Cash	51000	0.007370
Cash-settled Equity Swap	09/12/2025	09/12/2025	Cash	478000	0.069091
Cash-settled Equity Swap	26/03/2026	26/03/2026	Cash	30333	0.004384
Cash-settled Equity Swap	27/03/2026	27/03/2026	Cash	9634	0.001367
Cash-settled Equity Swap	30/03/2026	30/03/2026	Cash	34703	0.005015
Cash-settled Equity Swap	02/04/2026	02/04/2026	Cash	21269	0.003074
Cash-settled Equity Swap	22/04/2026	22/04/2026	Cash	728186	0.105251
Cash-settled Equity Swap	27/04/2026	27/04/2026	Cash	573158	0.082845
Cash-settled Equity Swap	08/05/2026	08/05/2026	Cash	358302	0.051738
Cash-settled Equity Swap	02/06/2026	02/06/2026	Cash	15116	0.002184
Cash-settled Equity Swap	01/07/2026	01/07/2026	Cash	798192	0.115372
Cash-settled Equity Swap	10/08/2026	10/08/2026	Cash	1559524	0.225417
Cash-settled Equity Swap	01/10/2026	01/10/2026	Cash	4129	0.000596
Cash-settled Equity Swap	03/11/2026	03/11/2026	Cash	2860649	0.413484
Cash-settled Equity Swap	04/12/2026	04/12/2026	Cash	2489072	0.359775
Cash-settled Equity Swap	23/12/2026	23/12/2026	Cash	19257315	2.783494
Cash-settled Equity Swap	05/01/2027	05/01/2027	Cash	2644126	0.382187
Cash-settled Equity Swap	30/05/2028	30/05/2028	Cash	95	0.000013
Cash-settled Equity Swap	02/05/2030	02/05/2030	Cash	4121375	0.595712
Sub Total 8.B2				36034178	5.208369%

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		5.208369	5.933940%
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%)

12. Date of Completion

19-Nov-2025

13. Place Of Completion

London, United Kingdom

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