Keller Group Plc – Holding(s) in Company

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB0004866223

Issuer Name

KELLER 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 Asset Management Holdings Inc.

City of registered office (if applicable)

Wilmington

Country of registered office (if applicable)

United States of America

4. Details of the shareholder

Name City of registered office Country of registered office
JPMorgan Asset London United Kingdom
Management (UK)
Limited

5. Date on which the threshold was crossed or reached

05-May-2026

6. Date on which Issuer notified

06-May-2026

7. Total positions of person(s) subject to the notification obligation

. % of voting % of voting rights Total of Total
rights through financial both number of
attached to instruments (total in % (8.A voting
shares of 8.B 1 + 8.B 2) + rights held
(total 8.B) in issuer
of 8.A)
Resulting 8.731981 1.372027 10.104008 7,069,447
situation on the
date on
which threshold
was crossed or
reached
Position of 8.550192 1.363860 9.914052
previous
notification
(if applicable)

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 Number of Number of indirect % of direct % of indirect
of shares direct voting rights voting rights voting rights
ISIN code(if voting (DTR5.2.1) (DTR5.1) (DTR5.2.1)
possible) rights
(DTR5.1)
GB0004866223 6,109,484 8.731981
Sub Total 6,109,484 8.731981
8.A

8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))

Type of Expiration Exercise/ Number of voting rights that may be % of
financial date conve acquired if the instrument is voting
instrument rsion exercised/converted rights
period

Sub Total
8.B1

8B2. Financial Instruments with similar economic effect according to
(DTR5.3.1R.(1) (b))

Type of Expiration Exercise/conve Physical or Number of % of
financial date rsion period cash voting voting
instrument settlement rights rights
Cash Settled – N/A N/A Cash 959,963 1.372027
Equity Swaps
Sub Total 8.B2 959,963 1.372027

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 Name of % of voting rights % of voting Total of both if
controlling controlled if it equals or is rights it equals or is
person undertaking higher than the through higher than the
notifiable financial notifiable
threshold instruments threshold
if it
equals or
is higher
than the
notifiable
threshold
JPMorgan JPMorgan 7.652026 9.023232
Asset Asset
Management Management
Holdings (UK)
Inc Limited
JPMorgan J.P. Morgan
Asset Investment
Management Management
Holdings Inc.
Inc
JPMorgan J.P. Morgan
Asset Alternative
Management Asset
Holdings Management,
Inc Inc
JPMorgan JPMorgan
Asset Asset
Management Management
Holdings (China)
Inc Company
Limited
JPMorgan JP Morgan
Asset chase Bank,
Management N.A
Holdings
Inc
JPMorgan JPMorgan
Asset Asset
Management Management
Holdings (Taiwan)
Inc Limited
JPMorgan JPMorgan
Asset Asset
Management Management
Holdings (Japan)
Inc. Limited
JPMorgan JPMorgan
Asset Asset
Management Management
Holdings (Singapore)
Inc Limited
JPMorgan JPMorgan
Asset Asset
Management Management
Holdings (Asia
Inc. Pacific)
Limited

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 Asset Management Holdings Inc
JPMorgan Asset Management International Limited (100%)
JPMorgan Asset Management (UK) Limited (100%)
JPMorgan Asset Management Holdings Inc
J.P. Morgan Investment Management Inc. (100%)
JPMorgan Asset Management Holdings Inc.
JPMorgan Asset Management (Asia) Inc. (100%)
JPMorgan Asset Management (Asia Pacific) Limited (100%)
JPMorgan Asset Management Holdings Inc.
JPMorgan Asset Management (Asia) Inc. (100%)
JPMorgan Asset Management (Japan) Limited (100%)
JPMorgan Asset Management Holdings Inc.
JPMorgan Asset Management (Asia) Inc. (100%)
JPMorgan Asset Management (Singapore) Limited (100%)
JPMorgan Asset Management Holdings Inc
J.P. Morgan Alternative Asset Management, Inc. (100%)
JPMorgan Asset Management Holdings Inc.
JPMorgan Asset Management (China) Company Limited (100%)
JPMorgan Asset Management Holdings Inc.
JPMorgan Asset Management (Asia) Inc. (100%)
JPMorgan Asset Management (Taiwan) Limited (100%)
JPMorgan Asset Management Holdings Inc
JP Morgan chase Bank, N.A. (100%)

12. Date of Completion

06-May-2026

13. Place Of Completion

Hyderabad, India

Enquiries:

Jamie Dearsley

Assistant Company Secretary

+44 7824 584 151

Keller Group plc

LEI Number:         549300QO4MBL43UHSN10

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