| £20m Share Buyback Programme | 10-Mar-2026 | ShareCast |
| Holding(s) in Company | 31-Dec-2025 | ShareCast |
| Holding(s) in Company | 30-Dec-2025 | ShareCast |
| Holding(s) in Company | 29-Dec-2025 | ShareCast |
| Holding(s) in Company | 23-Dec-2025 | ShareCast |
| Final Results | 10-Mar-2026 | 07:00 | RNS |
| £20m Share Buyback Programme | 10-Mar-2026 | 07:01 | RNS |
| Holding(s) in Company | 31-Dec-2025 | 12:16 | RNS |
| Holding(s) in Company | 30-Dec-2025 | 14:12 | RNS |
| Holding(s) in Company | 29-Dec-2025 | 11:18 | RNS |
| Costain hungry for more takeovers | 22-Aug-2014 | Express & Star |
| Costain's North Sea contract extended | 21-Aug-2014 | The Herald |
| Mouchel board turns down Costain's bid approach | 23-Dec-2010 | The Independent |
| Costain makes £118m offer for Mouchel | 23-Dec-2010 | Guardian |
| Costain puts pressure on Mouchel board to talk a... | 23-Dec-2010 | The Scotsman |
| Investment Column:Costain | 06-May-2011 | The Independent |
| FTSE live: RBS, Lloyds up; Nat Grid lower | 21-Jan-2011 | Daily Mail |
| FTSE close: ARM, BSkyB, Northern Foods up | 23-Dec-2010 | Daily Mail |
| Investment Column:Costain | 16-Oct-2009 | The Independent |
| Investment Column: Costain | 26-Jun-2009 | The Independent |
No recent information was found.
| Currency | UK Pounds |
| Share Price | 196.80p |
| Change Today | 0.013p |
| % Change | 0.66 % |
| 52 Week High | 202.50 |
| 52 Week Low | 99.20 |
| Volume | 48,161 |
| Shares Issued | 102.10m |
| Market Cap | £200.93m |
| Strong Buy | 5 |
| Buy | 0 |
| Neutral | 1 |
| Sell | 0 |
| Strong Sell | 0 |
| Total | 6 |

| Time | Volume / Share Price |
| 16:27 | 402 @ 196.80p |
| 16:27 | 700 @ 196.90p |
| 16:27 | 413 @ 196.90p |
| 16:27 | 867 @ 197.00p |
| 16:27 | 197 @ 197.50p |
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