| Registrars: | Equiniti |
| Independent Non-Executive Director: | Steven L Mogford |
| CEO: | Alex Vaughan |
| CFO: | Helen Willis |
| Independent Non-Executive Director: | Fiona MacAulay |
| Independent Non-Executive Director: | Amanda Fisher |
| Non-Executive Chairman: | Kate Rock |
| Senior Independent Director: | Anthony (Tony) James Quinlan |
| Non-Executive Dir: |
| Address: | Seventh Floor, 70 St Mary Axe, London, United Kingdom, EC3A 8BE |
| Phone: | +44 (0)20 3922 0600 |
| Website: | http://www.costain.com/ |
| Sector: | Construction and Building Materials(LSE) |
| Index: | FTSE Small Cap, FTSE All-Share |
| Overseas Listings: | BATSLON:COSTL |
| ISIN: | GB00B64NSP76 |
| Currency | UK Pounds |
| Share Price | 159.00p |
| Change Today | -0.60p |
| % Change | -0.38 % |
| 52 Week High | 168.00p |
| 52 Week Low | 86.00p |
| Volume | 351,498 |
| Shares Issued | 266.71m |
| Market Cap | £424.08m |
| Beta | 0.73 |
| RiskGrade | 234 |
| Value |
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| Price Trend |
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| Income |
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| Growth |
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| Strong Buy | 5 |
| Buy | 0 |
| Neutral | 1 |
| Sell | 0 |
| Strong Sell | 0 |
| Total | 6 |

| Latest | Previous | |
|---|---|---|
| Interim | Final | |
| Ex-Div | 11-Sep-25 | 17-Apr-25 |
| Paid | 17-Oct-25 | 29-May-25 |
| Amount | 1.00p | 2.00p |
| Time | Volume / Share Price |
| 12:58 | 5,549 @ 160.00p |
| 12:36 | 24,467 @ 159.00p |
| 12:35 | 75,000 @ 159.00p |
| 12:35 | 162,709 @ 159.00p |
| 12:35 | 811 @ 159.00p |
| CEO | Alex Vaughan |
| CFO | Helen Willis |
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