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Costain Group (COST) Insider Trading & Ownership

Costain Group logo
GBX 196.60 0.00 (0.00%)
As of 05/13/2026 12:10 PM Eastern

Costain Group (LON:COST) Insider Buying and Selling Activity

Current
Insider Ownership
Percentage
47.97%
Number Of
Insiders Buying
(Last 12 Months)
3
Amount Of
Insider Buying
(Last 12 Months)
£64.13K
Number Of
Insiders Selling
(Last 12 Months)
2
Amount Of
Insider Selling
(Last 12 Months)
£1.38M
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COST Insider Buying and Selling by Quarter

Costain Group Insider and Congressional Trades History

Transaction DateInsiderBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails
4/29/2026
Fiona MacAulay
Insider
Buy4,169GBX 179£7,462.51
4/14/2026
Helen Willis
Insider
Sell253,793GBX 197£499,972.21
12/10/2025
Fiona MacAulay
Insider
Buy6,347GBX 157£9,964.79
8/27/2025
Kate Rock
Insider
Buy15,000GBX 132£19,800
8/26/2025
Amanda Fisher
Insider
Buy10,000GBX 131£13,100
8/20/2025
Kate Rock
Insider
Buy10,000GBX 138£13,800
6/24/2025
Alex Vaughan
Insider
Sell241,639GBX 144£347,960.16
6/24/2025
Alex Vaughan
Insider
Sell214,285GBX 142£304,284.70
6/24/2025
Helen Willis
Insider
Sell56,429GBX 144£81,257.76
6/24/2025
Helen Willis
Insider
Sell100,082GBX 142£142,116.44
(Data available from 1/1/2013 forward)

COST Insider Trading Activity - Frequently Asked Questions

The list of insiders at Costain Group includes Alex Vaughan, Amanda Fisher, Fiona MacAulay, Helen Willis, and Kate Rock. Learn more on insiders at COST.

47.97% of Costain Group stock is owned by insiders. Learn more on COST's insider holdings.

The following insiders have purchased COST shares in the last 24 months: Amanda Fisher (£13,100), Fiona MacAulay (£17,427.30), and Kate Rock (£33,600).

Insiders have purchased a total of 45,516 COST shares in the last 24 months for a total of £64,127.30 bought.

The following insiders have sold COST shares in the last 24 months: Alex Vaughan (£652,244.86), and Helen Willis (£974,320.26).

Insiders have sold a total of 1,100,783 Costain Group shares in the last 24 months for a total of £1,626,565.12 sold.



This page (LON:COST) was last updated on 5/14/2026 by MarketBeat.com Staff.
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