---
title: "Costain Advances Share Buyback, Cutting Share Count to 267.6 Million"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286236532.md"
description: "Costain Group PLC has advanced its share buyback program, repurchasing 266,835 shares, reducing the total share count to 267,645,679. The shares were bought at an average price of 195 pence each, with all purchased shares set for cancellation. This move reflects management's confidence in the company's financial position and aims to enhance earnings per share for remaining shareholders. Analysts currently rate the stock as a Hold with a price target of £180.00, while TipRanks’ AI Analyst rates it as Outperform, citing improved financial stability despite concerns over revenue contraction."
datetime: "2026-05-13T09:55:43.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286236532.md)
  - [en](https://longbridge.com/en/news/286236532.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286236532.md)
---

# Costain Advances Share Buyback, Cutting Share Count to 267.6 Million

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Costain ( (GB:COST) ) has provided an announcement.

Costain Group PLC has continued executing its previously announced share buyback programme, repurchasing 266,835 ordinary shares between 6 and 12 May 2026 on the London Stock Exchange at volume-weighted average prices around 195 pence per share. The company intends to cancel all purchased shares and holds no shares in treasury, leaving 267,645,679 ordinary shares in issue after cancellation, which will modestly reduce the share count and slightly enhance earnings per share for investors.

In aggregate, Costain has now bought back 2,069,216 shares for cancellation under the programme, with trades executed across multiple venues including BATE, XLON, CHIX, and TRQX. The ongoing buyback underscores management’s capital allocation strategy and signals confidence in the group’s financial position, while incrementally improving capital returns to remaining shareholders through a tighter equity base.

The most recent analyst rating on (GB:COST) stock is a Hold with a £180.00 price target. To see the full list of analyst forecasts on Costain stock, see the GB:COST Stock Forecast page.

**Spark’s Take on COST Stock**

According to Spark, TipRanks’ AI Analyst, COST is a Outperform.

The score is driven primarily by improved financial stability and earnings quality (higher margins, low leverage, solid cash conversion), supported by strong technical uptrend signals. Valuation is reasonable but not deeply compelling, and the key risk tempering the score is the multi-year revenue contraction, which could limit future growth if it persists.

To see Spark’s full report on COST stock, click here.

**More about Costain**

Costain Group PLC is a U.K.-based engineering and construction company focused on infrastructure projects. It provides design, consultancy, and delivery services across transportation, energy, water, and other complex infrastructure markets, primarily serving public sector clients and large corporates.

**Average Trading Volume:** 1,629,253

**Technical Sentiment Signal:** Buy

**Current Market Cap:** £522.7M

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