Director/PDMR Shareholding

6 August 2026

Keller Group plc

Director/PDMR Shareholding

Keller Group plc (the "Company") announces that on 6 August 2026 it was notified of the following transactions in the Company's ordinary shares of 10 pence each (“Shares”) undertaken by the Persons Discharging Managerial Responsibilities (“PDMRs”) listed below :

• Stephen King, Non-executive Director, acquired 6,500 Shares at GBP 30.62 per Share.
• Peter Wyton, President, EME, disposed of 10,000 Shares at GBP 30.85 per Share.

The transactions took place on 6 August 2026 in London (XLON).

The Notification of Dealing Forms for the PDMRs can be found below.

Enquiries:

Keller Group plc
Silvana Glibota-Vigo, Group Head of Secretariat
Tel: [phone]

Notes to editors:

Keller is the world's largest geotechnical specialist contractor providing a wide portfolio of advanced foundation and ground improvement techniques used across the entire construction sector. With around 10,000 staff and operations across five continents, Keller tackles an unrivalled 5,500 projects every year, generating annual revenue of c£3bn.

LEI Number: 549300QO4MBL43UHSN10

NOTIFICATION AND PUBLIC DISCLOSURE OF TRANSACTIONS BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES AND PERSONS CLOSELY ASSOCIATED WITH THEM

1	Details of persons discharging managerial responsibility (“PDMR”) / person closely associated (“PCA”)
a)	Name	Stephen King
2	Reason for the notification
a)	Position / status	PDMR (Provide job title)		PCA (Provide name of job title of relevant PDMR)
		Non-executive Director		N/A
b)	Initial notification/Amendment	Initial notification
3	Details of the issuer
a)	Name	Keller Group plc
b)	LEI	549300QO4MBL43UHSN10
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument Identification code	Ordinary shares of 10p each GB0004866223
b)	Indicate nature of the transaction	Acquisition	Disposal	Subscription	Other
	ii) Is the transaction linked to an exercise of a share award?	Yes		No
				X
	iii) Was the transaction conducted pursuant to an investment programme or a trading plan?	Yes	No	If yes, provide date at which investment programme or trading plan was entered into:
			X
c)	Price(s) and volume(s)	Price(s) (Please state currency)		Volume(s)
		GBP 30.62		6,500
d)	Aggregated information	Aggregated price(s) (Please state currency)		Aggregated volume(s)
		Not applicable - single transaction		Not applicable - single transaction
e)	Date of the transaction	Date: 06.08.2026 Time zone: GMT
f)	Place of the transaction	London Stock Exchange

1	Details of persons discharging managerial responsibility (“PDMR”) / person closely associated (“PCA”)
a)	Name	Peter Wyton
2	Reason for the notification
a)	Position / status	PDMR (Provide job title)		PCA (Provide name of job title of relevant PDMR)
		President, EME		N/A
b)	Initial notification/Amendment	Initial notification
3	Details of the issuer
a)	Name	Keller Group plc
b)	LEI	549300QO4MBL43UHSN10
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument Identification code	Ordinary shares of 10p each GB0004866223
b)	Indicate nature of the transaction	Acquisition	Disposal	Subscription	Other
	ii) Is the transaction linked to an exercise of a share award?	Yes		No
				X
	iii) Was the transaction conducted pursuant to an investment programme or a trading plan?	Yes	No	If yes, provide date at which investment programme or trading plan was entered into:
			X
c)	Price(s) and volume(s)	Price(s) (Please state currency)		Volume(s)
		GBP 30.85		10,000
d)	Aggregated information	Aggregated price(s) (Please state currency)		Aggregated volume(s)
		Not applicable - single transaction		Not applicable - single transaction
e)	Date of the transaction	Date: 06.08.2026 Time zone: GMT
f)	Place of the transaction	London Stock Exchange

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