Skip to main content
COSTAIN GROUP PLC logo

COSTAIN GROUP PLC — Investor Relations & Filings

Ticker · COST ISIN · GB00B64NSP76 LEI · 213800PKIJBZ2EDTKC88 IL Construction
Open in API
Filings indexed 990 across all filing types
Latest filing 2025-08-01 Major Shareholding Noti…
Country GB United Kingdom
Listing IL COST

About COSTAIN GROUP PLC

https://www.costain.com/

Costain Group PLC is an infrastructure solutions company that provides engineering, construction, consulting, and digital services. The company specializes in delivering complex projects and transforming the performance of infrastructure across its core markets: road, rail, integrated transport, energy, water, and defence & nuclear energy. By integrating its diverse expertise, Costain engineers and delivers connected, sustainable solutions designed to address critical national challenges. Its services span the entire asset lifecycle, from initial concept and design to construction, asset optimization, and technology deployment.

Recent filings

Filing Released Lang Actions
Holding(s) in Company
Major Shareholding Notification Classification · 100% confidence The document is a 'TR-1: Standard form for notification of major holdings' filed by UBS Group AG regarding Costain Group PLC. This form is specifically used to report changes in significant share ownership (crossing thresholds), which directly matches the definition for 'Major Shareholding Notification'.
2025-08-01 English
Total Voting Rights
Declaration of Voting Results & Voting Rights Announcements Classification · 100% confidence The document is a standard 'Total Voting Rights and Capital' announcement issued by Costain Group PLC. It explicitly references the FCA's Disclosure Guidance and Transparency Rule 5.6.1(R) regarding the total number of voting rights and issued share capital. This type of regulatory disclosure is a standard requirement for UK-listed companies to inform shareholders of the denominator for interest notification calculations. While it relates to capital, it is specifically a regulatory notification of voting rights rather than a transaction in own shares or a capital change announcement, making 'RNS' the most appropriate classification for this regulatory filing.
2025-08-01 English
Transaction in Own Shares
Transaction in Own Shares Classification · 100% confidence The document is an official announcement from Costain Group PLC regarding the purchase of its own shares on the London Stock Exchange as part of a previously announced share buyback program. It provides detailed transaction data, including dates, volumes, prices, and venues, which is characteristic of a 'Transaction in Own Shares' filing. It does not fit the criteria for a general regulatory filing or a report publication announcement as it is a specific disclosure of a corporate action.
2025-08-01 English
Holding(s) in Company
Major Shareholding Notification Classification · 100% confidence The document is a 'TR-1: Standard form for notification of major holdings' filed by Costain Group PLC. It details a change in voting rights held by UBS Group AG, crossing a regulatory threshold. This is a classic 'Major Shareholding Notification' (TR-1 form), which corresponds to the MRQ filing category.
2025-07-31 English
Transaction in Own Shares
Transaction in Own Shares Classification · 100% confidence The document is an official announcement from Costain Group PLC regarding the purchase of its own shares on the London Stock Exchange as part of a previously announced share buyback program. It provides detailed tables of transaction dates, volumes, prices, and venues, which is characteristic of a 'Transaction in Own Shares' filing. It does not meet the criteria for a report publication announcement as it is the primary disclosure of the transaction data itself.
2025-07-31 English
Transaction in Own Shares
Transaction in Own Shares Classification · 100% confidence The document is an official announcement from Costain Group PLC regarding the purchase of its own shares on the London Stock Exchange as part of a previously announced share buyback program. It provides detailed tables of individual transactions, including timestamps, volumes, and prices, which is characteristic of a 'Transaction in Own Shares' filing. This fits the definition for the 'POS' category.
2025-07-30 English

Browse filings by year

46 years

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.