| 20.09.2024 12:17 | INVP, COST | IN BRIEF: Costain Group says first tranche of buyback completed | Alliance |
| 20.09.2024 07:05 | COST | Share Buyback Programme Update | RNS |
| 20.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 19.09.2024 11:53 | COST | Scrip Dividend Reference Price | RNS |
| 19.09.2024 11:44 | COST | Holding(s) in Company | RNS |
| 19.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 18.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 17.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 16.09.2024 17:06 | COST | Holding(s) in Company | RNS |
| 16.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 11.09.2024 13:39 | COST | UPDATE: Costain says ASGC stake sale shows high demand for shares | Alliance |
| 11.09.2024 11:57 | COST | IN BRIEF: ASGC Construction sells entire 15% share holding in Costain | Alliance |
| 11.09.2024 07:00 | COST | Result of placing in Costain Group Plc | RNS |
| 11.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 10.09.2024 21:14 | COST | IN BRIEF: ASGC Construction to sell 11% stake in Costain via placing | Alliance |
| 10.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 09.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 06.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 05.09.2024 16:37 | TRI, UPR, TTG | UK dividends calendar - next 7 days | Alliance |
| 05.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 04.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 03.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 02.09.2024 07:05 | COST | Total Voting Rights | RNS |
| 02.09.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 29.08.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 28.08.2024 07:00 | COST | Transaction in Own Shares | RNS |
| 27.08.2024 12:33 | AAIF, COST, CHRY | SMALL-CAP WINNERS & LOSERS: Chrysalis jumps; DB raises Costain PT | Alliance |
| 27.08.2024 09:46 | FLTR, COST, BWY | LONDON BROKER RATINGS: Deutsche Bank cuts Associated British Foods | Alliance |
| 21.08.2024 10:06 | COST | TOP NEWS: Costain heralds "significant growth" in Water as orders flow | Alliance |
| 21.08.2024 09:44 | RNK, COST, MCG | SMALL-CAP WINNERS & LOSERS: Mobico revs up plan to sell US bus arm | Alliance |
| 21.08.2024 07:10 | COST | On-market Share Buyback Programme of £10m | RNS |
| 21.08.2024 07:00 | COST | Results for the six months ended 30 June 2024 | RNS |
| 16.08.2024 10:44 | ECEL, EVOK, COST | SMALL-CAP WINNERS & LOSERS: Evoke up, directors step in to buy shares | Alliance |
| 16.08.2024 10:18 | SVT, COST, GFRD | Costain and Galliford Try picked for Southern Water contract framework | Alliance |
| 16.08.2024 09:30 | COST | Costain wins AMP8 framework with Southern Water | RNS |
| 14.08.2024 13:52 | ZOO, MCG, COST | UK earnings, trading statements calendar - next 7 days | Alliance |
| 08.08.2024 09:30 | COST | Investor Presentation via Investor Meet Company | RNS |
| 05.08.2024 11:18 | COST | Change of Registered Office | RNS |
| 01.07.2024 15:26 | COST | Block listing Interim Review | RNS |
| 26.06.2024 14:31 | ATN, ZPHR, LEX | EARNINGS AND TRADING: Directa Plus loss narrows to EUR4.3 million | Alliance |
| 26.06.2024 07:00 | COST | Costain JV awarded Southern Water programme | Reach |
| 04.06.2024 20:31 | CHLL, AUK, ZEN | TRADING UPDATES: Tasty restructuring backed; Alien Metals raises funds | Alliance |
| 04.06.2024 14:41 | COST | Costain Secures New AMP8 Framework Agreement | RNS |
| 03.06.2024 10:39 | COST | Total Voting Rights | RNS |
| 23.05.2024 15:16 | COST | Additional Listing | RNS |
| 21.05.2024 14:06 | TFG, TIG, QLT | UK dividends calendar - next 7 days | Alliance |
| 16.05.2024 16:10 | COST | Ordinary Share Nominal Value Reduction | RNS |
| 16.05.2024 16:09 | COST | Result of AGM | RNS |
| 16.05.2024 12:53 | COST | Costain says confident of long-term prospects amid contract wins | Alliance |
| 16.05.2024 07:00 | COST | AGM Statement | RNS |
| 10.05.2024 09:52 | SBRE, SYNT, FOXT | LONDON BROKER RATINGS: UBS raises Trainline, cuts Kingspan | Alliance |
| 09.05.2024 15:49 | VTY, UTG, WPS | UK shareholder meetings calendar - next 7 days | Alliance |
| 01.05.2024 10:41 | COST | Total Voting Rights | RNS |
| 25.04.2024 11:41 | COST | Scrip Dividend Reference Price | RNS |
| 15.04.2024 14:07 | COST, HERC | Hercules Site Services joins Costain's UK-wide labour framework | Alliance |
| 11.04.2024 15:09 | WEIR, VSVS, VANQ | UK dividends calendar - next 7 days | Alliance |
| 09.04.2024 16:16 | COST | Director/PDMR Shareholding | RNS |
| 09.04.2024 13:32 | COST | Director/PDMR Shareholding | RNS |
| 09.04.2024 09:33 | COST | Annual Report and Accounts and Notice of 2024 AGM | RNS |
| 04.04.2024 09:55 | COST | Additional Listing | RNS |
| 02.04.2024 09:56 | RNWH, COST | Renew Holdings performs in line with strong demand across key markets | Alliance |
| 15.03.2024 13:07 | COST | IN BRIEF: Costain wins place on GBP4 billion carbon capture project | Alliance |
| 15.03.2024 08:30 | COST | Key Partner for Landmark Carbon Capture Project | Reach |
| 12.03.2024 12:20 | COST | Costain proposes final dividend despite profit fall as outlook rosy | Alliance |
| 12.03.2024 07:01 | COST | Directorate Change | RNS |
| 12.03.2024 07:00 | COST | 2023 Full Year Results | RNS |
| 05.03.2024 16:06 | TCAP, TIFS, SYNT | UK earnings, trading statements calendar - next 7 days | Alliance |
| 27.02.2024 12:06 | COST | Investor Presentation via Investor Meet Company | Reach |
| 12.01.2024 11:04 | WPS, WRKS, SGE | CORRECT: UK earnings, trading statements calendar - next 7 days | Alliance |
| 11.01.2024 15:53 | WPS, WRKS, SGE | UK earnings, trading statements calendar - next 7 days | Alliance |
| 10.01.2024 10:29 | COST | Costain bags Northumbria Water contract; profit to meet consensus | Alliance |
| 10.01.2024 10:16 | COST, HSW, CPI | SMALL-CAP WINNERS & LOSERS: Costain trades well; RBC cuts Capita | Alliance |
| 10.01.2024 07:00 | COST | AMP8 Water Framework Win with NWG & Trading Update | RNS |
| 02.01.2024 12:56 | COST | Block listing Interim Review | RNS |
| 01.11.2023 12:15 | COST | Total Voting Rights | RNS |
