Block listing Interim Review

Summary by AI ^BETAClose X

Costain Group PLC has reported a block listing six-monthly return for its Employee Sharesave Plan covering the period from July 1, 2025, to December 31, 2025. The company stated that there was no change in the balance of unallotted securities, which remained at 58,293 at the end of the period. No new securities were issued or allotted under the scheme during this reporting timeframe, and no increases to the block scheme were applied for.

Disclaimer*

Costain Group PLC

02 January 2026

Costain Group PLC

BLOCK LISTING SIX MONTHLY RETURN

(Note: Italicised terms have the same meaning as given in the Listing Rules.)

02 January 2026

Name of applicant:		Costain Group PLC ("the Company")
Name of scheme(s):		The Company's Employee Sharesave Plan.
Period of return:	From:	1 July 2025	To:	31 December 2025
Balance of unallotted securities under scheme(s) from previous return:		58,293
Plus: The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):		Nil
Less: Number of securities issued/allotted under scheme(s) during period (see UKLR20.6.6R):		Nil
Equals: Balance under scheme(s) not yet issued/allotted at end of period:		58,293

There was no change in the reporting period.

Name of contact:	Cyd Trumper, Senior Assistant Company Secretary
Telephone number of contact:	07876 133084

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 rns@lseg.com 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