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COSTAIN GROUP PLC — Investor Relations & Filings

Ticker · COST ISIN · GB00B64NSP76 LEI · 213800PKIJBZ2EDTKC88 IL Construction
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Filings indexed 989 across all filing types
Latest filing 2025-12-31 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 Costain Group PLC. It details a change in voting rights held by UBS Group AG, crossing a specific threshold. This is a standard regulatory disclosure for major shareholding notifications, which corresponds to the MRQ filing category.
2025-12-31 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 share ownership by UBS Group AG, crossing a specific threshold. This aligns perfectly with the definition of a Major Shareholding Notification (MRQ), which tracks changes in significant share ownership levels.
2025-12-30 English
Holding(s) in Company
Major Shareholding Notification Classification · 100% confidence The document is a 'TR-1: Standard form for notification of major holdings'. This is a regulatory requirement for shareholders to disclose when their voting rights in a company cross a specific threshold. This fits the definition of a 'Major Shareholding Notification' (MRQ).
2025-12-29 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 UBS Group AG regarding their shareholding in Costain Group PLC. This is a regulatory requirement for disclosing changes in significant share ownership (crossing thresholds). This fits the definition of a Major Shareholding Notification (MRQ).
2025-12-23 English
Holding(s) in Company
Major Shareholding Notification Classification · 100% confidence The document is a 'TR-1: Standard form for notification of major holdings'. It explicitly details an acquisition of voting rights by UBS Group AG in Costain Group PLC, crossing a specific threshold. This is a standard regulatory disclosure for major shareholding notifications, which corresponds to the 'Major Shareholding Notification' category.
2025-12-22 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 an acquisition or disposal of voting rights by UBS Group AG, specifically noting that the threshold of 5% has been crossed. This is a standard regulatory disclosure for major shareholding notifications, which corresponds to the MRQ category.
2025-12-19 English

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