Company news

Costain Group PLC news

Latest news releases, newest first. Pick a year for every news release, call and deck from that year.

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Total Voting Rights

November 2, 2026

Appointment of Joint Corporate Broker

October 22, 2026

Holding(s) in Company

October 20, 2026

Additional Listing

October 20, 2026

Scrip Dividend Documentation

October 20, 2026

Transaction in Own Shares

October 19, 2026

Holding(s) in Company

October 16, 2026

Transaction in Own Shares

October 14, 2026

Director/PDMR Shareholding

October 12, 2026

Update on AGM Political Donations Resolution Vote

October 9, 2026

Transaction in Own Shares

October 7, 2026

Holding(s) in Company

October 6, 2026

Costain selected for Pagabo Framework

October 2, 2026

Director/PDMR Shareholding

October 1, 2026

Total Voting Rights

October 1, 2026

Transaction in Own Shares

September 30, 2026

Costain selected to upgrade Thames Water treatment sites

August 17, 2026

Half-year Financial Results

August 13, 2026

Costain awarded three-year extension to United Utilities contract

July 15, 2026

Costain extends contract with United Utilities

July 15, 2026

Block Listing Interim Review

July 1, 2026

Costain wins West Winch Housing Road contract

June 18, 2026

Costain awarded contract for West Winch Housing Access Road

June 17, 2026

Costain lands places on two London Gatwick frameworks

June 10, 2026

Costain wins place on £700m TfL framework

June 9, 2026

2026 - Results of Annual General Meeting

May 15, 2026

Costain chosen for Dover Harbour Board Framework

May 7, 2026

Scrip Dividend Reference Price - Replacement

May 1, 2026

Costain hits milestone with 1625km of gas pipeline upgraded for Cadent

April 16, 2026

2026 - Notice of Annual General Meeting

April 2, 2026

Annual Report 2025 (ESEF)

April 2, 2026

Rules of the Costain 2023 Long Term Incentive Plan (Amended)

April 2, 2026

Proxy Form 2026

April 2, 2026

Notice of Meeting 2026

April 2, 2026

Costain Secures c.£45m Contract with Severn Trent

March 18, 2026

£20m Share Buyback Programme

March 10, 2026

Final Results

March 10, 2026

Directorate change

March 4, 2026

Holding(s) in Company

March 3, 2026

Costain returns to FTSE 250

March 2, 2026

Costain set to return to FTSE 250 following sustained strong performance

February 27, 2026

Ashtead Group

February 25, 2026

Director Declaration

February 24, 2026

Investor Presentation via Investor Meet Company

February 9, 2026

Costain Awarded Contract for New M5 Junction

January 27, 2026

New Pension Scheme Agreement & FY25 Trading Update

January 26, 2026

Trading Update Jan 2026 Final

January 22, 2026

Block listing Interim Review

January 2, 2026

Notice of Trading Update

December 19, 2025

Director/PDMR Shareholding

December 11, 2025

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Calls

The 5 newest of 7 calls. Every call is listed under its year.

Decks

The 5 newest of 11 decks. Every deck is listed under its year.