REG - Costain Group PLC - Holding(s) in Company
RNS Number: 8063U Costain Group PLC 15 September 2026 TR-1: Standard form for notification of major holdings1. Issuer DetailsISINGB00B64NSP76Issuer NameCOSTAIN GROUP PLCUK or Non-UK IssuerUK2. Reason for NotificationAn acquisition or disposal of voting rights; An acquisition or disposal of fin…