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Costain Group (COST) Share Price

Price 226.50p on 21-08-2026 at 18:05:09
Change 5.50p 2.49%
Buy 228.00p
Sell 226.00p
Last Trade: Sell 55,576.00 at 226.50p
Day's Volume: 694,421
Last Close: 226.50p
Open: 218.00p
ISIN: GB00B64NSP76
Day's Range 218.00p - 227.00p
52wk Range: 124.40p - 241.00p
Market Capitalisation: £597.39m
VWAP: 225.27646p
Shares in Issue: 263.75m

Costain Group (COST) Latest Trades

Buy/Sell Volume Trade Prc Trade Type Trade Time
Sell* 55,576 226.50p Ordinary
16:38:55 - 21-Aug-26
Sell* 2,429 226.50p Ordinary
16:36:44 - 21-Aug-26
Buy* 2,429 226.50p Automatic Execution
16:35:46 - 21-Aug-26
Buy* 127,191 226.50p Suspected BUY Trade
16:35:11 - 21-Aug-26
Buy* 38 227.00p Automatic Execution
16:29:59 - 21-Aug-26
Buy* 900 227.00p Automatic Execution
16:29:59 - 21-Aug-26
Buy* 857 227.00p Automatic Execution
16:29:59 - 21-Aug-26
Unknown* 13,767 226.00p OTC Trade
16:29:01 - 21-Aug-26
Sell* 13,767 226.00p SI Trade
16:29:01 - 21-Aug-26
Buy* 1,751 226.80p Ordinary
16:27:23 - 21-Aug-26
See more Costain Group trades

Costain Group (COST) Share Price History

Time period:
to
Date Open High Low Close Volume
21st Aug 2026 (Fri) 218.00 227.00 218.00 226.50 694,421
20th Aug 2026 (Thu) 225.50 229.50 221.00 221.00 442,077
19th Aug 2026 (Wed) 228.50 228.50 224.00 225.50 532,716
18th Aug 2026 (Tue) 226.00 228.50 221.00 227.50 956,817
17th Aug 2026 (Mon) 241.00 241.00 228.50 228.50 642,446
14th Aug 2026 (Fri) 236.00 240.00 228.50 234.50 2,730,925
13th Aug 2026 (Thu) 228.50 237.00 225.50 229.50 3,026,619
12th Aug 2026 (Wed) 221.00 226.00 217.50 219.50 1,442,325
11th Aug 2026 (Tue) 217.00 220.50 215.00 218.50 312,482
10th Aug 2026 (Mon) 216.50 219.50 215.50 216.50 281,305
7th Aug 2026 (Fri) 214.50 217.00 212.00 215.50 1,608,048
6th Aug 2026 (Thu) 208.00 216.50 208.00 215.50 363,989
5th Aug 2026 (Wed) 204.00 215.00 204.00 214.00 453,148
4th Aug 2026 (Tue) 201.50 215.00 201.50 211.50 520,238
3rd Aug 2026 (Mon) 202.00 214.50 202.00 212.50 252,231
31st Jul 2026 (Fri) 210.50 215.50 210.50 211.00 719,237
30th Jul 2026 (Thu) 209.50 212.50 207.50 211.50 710,071
29th Jul 2026 (Wed) 209.00 210.00 206.50 208.00 600,699
28th Jul 2026 (Tue) 219.00 219.00 206.50 211.50 463,100
27th Jul 2026 (Mon) 220.00 220.00 214.00 214.00 354,525
24th Jul 2026 (Fri) 217.50 220.50 216.50 216.50 266,274
23rd Jul 2026 (Thu) 217.50 218.50 215.00 216.00 325,543
See more Costain Group price history

Costain Group (COST) Regulatory News

Date Source Headline
20th Aug 2026 1:02 pm RNS Holding(s) in Company
19th Aug 2026 11:55 am RNS Transaction in Own Shares
13th Aug 2026 7:00 am RNS Half-year Financial Results
12th Aug 2026 10:00 am RNS Transaction in Own Shares
5th Aug 2026 10:32 am RNS Transaction in Own Shares
3rd Aug 2026 10:00 am RNS Total Voting Rights
29th Jul 2026 10:30 am RNS Transaction in Own Shares
27th Jul 2026 7:00 am RNS Investor Presentation via Investor Meet Company
22nd Jul 2026 1:57 pm RNS Transaction in Own Shares
15th Jul 2026 10:30 am RNS Transaction in Own Shares
See more Costain Group regulatory news

Costain Group (COST) Share News

IN BRIEF: Thames Water contracts Costain for GBP150 million in works

17th Aug 2026 22:25

Costain Group PLC- London-based infrastructure solutions company - Contracted by Thames Water to complete around GBP150 million of upgrades to wastewater treatment assets across 15 sites as part of Thames Water's wastewater asset assurance programme. The works are part of Thames Water's upgrade of sewers and sewage treatment at more than 250 sites across the Thames Valley region. Costain's upgrade works will include modernising operations at inlet stations, improving the resilience of storm tanks and other repairs, modifications and upgrades to wastewater systems, and are expected to be completed from 2025 to 2030. Read More

WINNERS & LOSERS: Michael Page higher on UBS lift; software shares up

14th Aug 2026 10:08

(Alliance News) - The following are the leading risers and fallers among FTSE 100 and 250 index constituents on Friday. Read More

LONDON BROKER RATINGS: UBS raises Michael Page to 'buy'

14th Aug 2026 09:48

(Alliance News) - The following London-listed shares received analyst recommendations Friday morning and on Thursday: Read More

Costain doubles payout as Natural Resources drives first-half growth

13th Aug 2026 11:05

(Alliance News) - Costain Group PLC doubled its interim dividend as it reported on Thursday higher sales and profit in the first six months of 2026. Read More

WINNERS & LOSERS: Anto cuts output view; BP, Shell, others ex-dividend

13th Aug 2026 10:18

(Alliance News) - The following are the leading risers and fallers among FTSE 100 and 250 index constituents on Thursday. Read More

See more Costain Group news
FTSE 100 Latest
Value10,816.56
Change68.40

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