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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 2026-03-27 Share Issue/Capital Cha…
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
Additional Listing
Share Issue/Capital Change Classification · 93% confidence The document is an RNS announcement titled “LONG TERM INCENTIVE PLAN - LISTING APPLICATION” describing the application for admission of 3,000,000 new ordinary shares to the Official List and trading on the London Stock Exchange. This is a notice of new share issuance/capital change rather than a full report, quarterly earnings, or management meeting materials. It aligns with the “Share Issue/Capital Change” category (SHA).
2026-03-27 English
Transaction in Own Shares
Transaction in Own Shares Classification · 92% confidence The document is an RNS announcement titled “Transaction in own shares,” detailing the number of ordinary shares repurchased under the company’s buyback programme, purchase dates, volumes, prices, and aggregate information. This matches the company buying back its own shares category.
2026-03-25 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 under a share buyback programme. It details the dates, volumes, and prices of the shares purchased on the London Stock Exchange. This aligns perfectly with the definition for 'Transaction in Own Shares' (POS).
2026-03-18 English
Costain Secures c.£45m Contract with Severn Trent
Regulatory Filings Classification · 95% confidence The document is a press release issued via the RNS (Regulatory News Service) platform announcing that Costain Group PLC has secured a new £45m contract with Severn Trent. It describes a specific business development/operational update rather than a financial report, governance document, or shareholder meeting material. Since it does not fit into specific categories like M&A or capital changes, and is a general corporate announcement, it falls under the RNS regulatory filing category.
2026-03-18 English
£20m Share Buyback Programme
Transaction in Own Shares Classification · 100% confidence The document is an official announcement from Costain Group PLC regarding the launch of an on-market share buyback programme. It details the financial parameters, the appointment of brokers (Panmure Liberum and Investec), and the regulatory framework under which the buyback will occur. Since the document describes the company's intention to repurchase its own shares, it falls under the 'Transaction in Own Shares' (POS) category.
2026-03-10 English
Final Results
Earnings Release Classification · 95% confidence The document is a comprehensive 'Results for the Year Ended 31 December 2025' announcement from Costain Group PLC. It contains detailed financial highlights, management commentary, balance sheet data, and forward-looking statements. While it functions as an earnings release, the depth of the financial data, the inclusion of a 'Financial Review', and the detailed breakdown of performance metrics across divisions align it with the 'Earnings Release' category, which is the standard classification for initial announcements of annual or quarterly financial results. FY 2025
2026-03-10 English

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