Directors’ Deals: Costain’s finance chief sells after deferred share award

May 2, 2026 - 03:34

The finance director of Costain has sold a tranche of shares in the construction and infrastructure group, just weeks after a deferred share award vested. The disposal, which was disclosed in a regulatory filing, involved a relatively modest number of ordinary shares and was executed at a price reflecting the company's recent market valuation.

Costain's stock has seen a notable recovery over the past few years, climbing from pandemic-era lows as the firm refocused on its core infrastructure and transportation contracts. The share price has benefited from a stronger order book and improved margins, with the company reporting a return to profitability after a period of restructuring. The finance chief's sale is not unusual in the context of vesting awards, as executives often sell a portion of shares to cover tax liabilities or to diversify their holdings.

The transaction was conducted on the London Stock Exchange. The sale price was in line with the prevailing market rate on the day of the trade. The filing did not indicate any change in the director's overall confidence in the company's prospects. Costain has recently secured several key contracts in the water and highways sectors, which have underpinned its share price performance. The group continues to target growth in its core markets, with a focus on digital engineering and sustainable infrastructure solutions.