COSTAIN GROUP PLC

Transaction in Own Shares • Dec 11, 2025

National Storage Mechanism | Additional information

RNS Number : 2647L

Costain Group PLC

11 December 2025

 

Costain Group PLC (the Company)

11 December 2025

DIRECTOR/PDMR/PCA DEALING

The Company announces that Fiona MacAulay, Non-Executive Director, has purchased 6,347 Ordinary Shares in the Company at £1.57 per share on 10 December 2025. Her resulting shareholding in the Company is 6,347 shares representing 0.00002% of the Company's issued share capital.

The Notification of Dealing Form set out below is provided in accordance with the requirements of the UK Market Abuse Regulation.

Notification of Dealing Form

1.

Details of the Person Discharging Managerial Responsibility ("PDMR") / person closely associated with them ("PCA")

a)

Name

FIONA MACAULAY

2.

Reason for the notification

a)

Position /status

NON-EXECUTIVE DIRCETOR (PDMR)

b)

Initial notification / amendment

INITIAL NOTIFICATION

3.

Details of the Issuer

a)

Name

COSTAIN GROUP PLC

b)

LEI code

213800PKIJBZ2EDTKC88

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, type of instrument

Identification code

ORDINARY SHARES OF 1 PENCE EACH

ISIN:  GB00B64NSP76

b)

Nature of the transaction

PURCHASE OF 6,347 SHARES

c)

Price(s) and volume(s)

Price(s)	Volume(s)
£1.57	6,347

d)

Aggregated information

-  Aggregated volume

-  Price

N/A

e)

Date of the transaction

10 DECEMBER 2025

f)

Place of the transaction

XLON

Enquiries:

Investors and analysts Matt Jones, Costain	[email protected] +44 (0) 7860 922 341
Financial media - Headland Andy Rivett-Carnac Charlie Twigg	[email protected] +44 (0) 7968 997365 +44 (0) 7946 494568

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact [email protected] or visit www.rns.com.

RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy.

END

DSHFFUFIFEISEIE