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COSTAIN GROUP PLC — Investor Relations & Filings

Ticker · COST ISIN · GB00B64NSP76 LEI · 213800PKIJBZ2EDTKC88 IL Construction
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Filings indexed 990 across all filing types
Latest filing 2025-07-23 Transaction in Own Shar…
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
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 includes detailed transaction tables, dates, volumes, and prices, which is characteristic of a 'Transaction in Own Shares' filing. This aligns perfectly with the definition for the POS category.
2025-07-23 English
Holding(s) in Company
Regulatory Filings Classification · 98% confidence The document is explicitly labeled with "RNS Number : 0720S" and contains the standard footer information indicating it is provided by RNS, the news service of the London Stock Exchange, which acts as a Primary Information Provider. The content itself is a "TR-1: Standard form for notification of major holdings," detailing an acquisition of voting rights by UBS Group AG, crossing a threshold. This type of mandatory disclosure to the market, especially when distributed via RNS, falls under the general regulatory announcement category. Since there is no specific code for 'Major Shareholding Notification' that perfectly matches the TR-1 form (MRQ is defined as 'Major Shareholding Notification' but often refers to changes crossing thresholds, which this is), and given the explicit RNS distribution and format, the most appropriate general regulatory filing code is RNS, as it is a standard regulatory disclosure distributed through the official channel.
2025-07-22 English
Transaction in Own Shares
Transaction in Own Shares Classification · 100% confidence The document is an RNS (Regulatory News Service) announcement from Costain Group PLC, dated July 22, 2025. The title explicitly states 'Transaction in own shares'. The content details the purchase of 195,003 Ordinary Shares on July 21, 2025, as part of a share buyback programme, including aggregate data and a detailed table of individual trades. This directly corresponds to the definition of 'Transaction in Own Shares' (Code: POS), which covers company buying back or selling its own shares.
2025-07-22 English
Transaction in Own Shares
Transaction in Own Shares Classification · 100% confidence The document is identified by the RNS Number (7429R) and the issuer name (Costain Group PLC). The title explicitly states 'Transaction in own shares'. The content details the purchase of Ordinary Shares under a 'share buyback programme' and provides aggregate and individual trade details, concluding with a 'Classification: 2.4. Acquisition or disposal of the issuer's own shares'. This directly matches the definition for Transaction in Own Shares, which corresponds to code POS.
2025-07-21 English
Holding(s) in Company
Major Shareholding Notification Classification · 99% confidence The document is explicitly labeled with "RNS Number : 7405R" and contains a standard form for notification of major holdings, specifically "TR-1: Standard form for notification of major holdings". This type of filing, which reports changes in significant share ownership (in this case, falling below the 5% threshold), is a regulatory disclosure. Since it is a specific regulatory notification that doesn't fit the definitions for 10-K, ER, or IR, and it is not an announcement *about* a report (like RPA), it falls under the general category for regulatory announcements. However, given the specific nature of reporting major shareholding changes, the most appropriate code among the provided options is 'MRQ' (Major Shareholding Notification), as this directly addresses changes in significant ownership thresholds. The presence of the RNS footer confirms it is a regulatory filing, but MRQ is more specific than RNS.
2025-07-18 English
Transaction in Own Shares
Transaction in Own Shares Classification · 100% confidence The document is an official announcement from Costain Group PLC, identified by the 'RNS Number' and the reference to RNS being the news service of the London Stock Exchange. The primary subject matter, explicitly stated in the title and body, is 'Transaction in own shares' and details the purchase of Ordinary Shares under a 'share buyback programme'. This directly corresponds to the definition for 'Transaction in Own Shares' (Code: POS). The document provides aggregate and individual trade details for the share repurchase activity.
2025-07-18 English

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