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 2025-01-27 Regulatory Filings
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
Trading Update with Strong Forward Work Position
Regulatory Filings Classification · 99% confidence The document is identified by the RNS Number header and the mention of 'RNS, the news service of the London Stock Exchange'. The content is a 'Trading Update with Strong Forward Work Position' which provides preliminary financial highlights (expected operating profit in line with expectations, net cash figures) and announces the date for the full year results (11 March 2025). This structure—a brief update on recent performance and an announcement about a future, more comprehensive report—is characteristic of an Earnings Release (ER) or a preliminary trading statement. Since it provides key financial expectations before the full results, ER is the most appropriate classification, as it is an initial announcement of periodical financial results (even if preliminary/updated). It is not a full report (10-K or IR) nor is it merely an announcement of a report's publication (RPA), as it contains substantive trading information.
2025-01-27 English
Block listing Interim Review
Share Issue/Capital Change Classification · 99% confidence The document is identified by the 'RNS Number : 9344R' and contains a 'BLOCK LISTING SIX MONTHLY RETURN' for the period 1 July 2024 to 31 December 2024, concerning the Company's Employee Sharesave Plan. This is a specific regulatory filing related to the listing rules (UKLR) and reporting of unallotted securities under a scheme. While it is a regulatory filing, the content specifically details the status of securities under a scheme, which is a specialized disclosure. Given the options, this type of periodic return related to share schemes and listing compliance does not fit perfectly into the defined categories like 10-K, ER, or DIV. It is a formal regulatory announcement provided via RNS. Since it is a specific, structured regulatory return that doesn't map directly to the other specialized codes (like DIRS, SHA, POS), the most appropriate general regulatory category is RNS, as it is explicitly distributed by RNS and serves as a formal regulatory update.
2025-01-02 English
Steve Mogford External Appointment
Board/Management Information Classification · 99% confidence The document is identified by the 'RNS Number : 3054R' and contains an announcement regarding an 'External Appointment' of a director (Steve Mogford) to another company (Intertek Group plc). This type of announcement, which details changes in the board of directors or senior management, directly corresponds to the definition of Board/Management Information (MANG). Although it is distributed via RNS, the specific content is about management changes, making MANG the most precise classification. The document length is short (1955 chars), but the content is a specific announcement, not just a notice that a report is attached.
2024-12-24 English
Siemens and Costain JV wins HS2 Systems Contract
Regulatory Filings Classification · 100% confidence The document is identified by the 'RNS Number' header and contains a formal announcement from Costain Group PLC dated December 19, 2024, regarding winning a significant contract for the HS2 project. It details the contract value and mentions a previous related announcement. The closing section explicitly states, "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." This structure is characteristic of a general regulatory news service announcement, which fits the definition of 'Regulatory Filings' (RNS) as a general category for official announcements not covered by more specific codes like ER, DIV, or MANG.
2024-12-19 English
Holding(s) in Company
Major Shareholding Notification Classification · 99% confidence The document is clearly identified by the header 'RNS Number : 9106P' and contains the standard structure for a TR-1 form, which is a 'Standard form for notification of major holdings'. This form is used to report changes in significant share ownership (crossing thresholds). This specific type of regulatory disclosure regarding changes in major shareholdings aligns directly with the definition for Major Shareholding Notification (MRQ). Although it is distributed via RNS, the content is specific enough to warrant the MRQ classification over the general RNS fallback.
2024-12-12 English
Costain / East Coast Cluster
Earnings Release Classification · 99% confidence The document begins with an 'RNS Number' and the date, indicating it is a regulatory announcement distributed via the RNS system. The content describes a significant business update: Costain receiving confirmation to proceed on a major contract ('East Coast Cluster'). This is a material event announcement, not a full financial report (like 10-K or IR), a presentation (IP), or a transcript (CT). Since it is a general regulatory announcement that doesn't fit perfectly into specific categories like Director's Dealing (DIRS), Dividend (DIV), or Capital Change (CAP), the most appropriate classification is the general regulatory filing category, RNS. FY 2024
2024-12-11 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.