Business
Director/PDMR Shareholding
Costain Group PLC announced that Non-Executive Director Fiona MacAulay purchased 6,347 ordinary shares at £1.57 per share on December 10, 2025, increasing her total holding to 6,347 shares, which represents 0.00002% of the company's issued share capital. This transaction, conducted on XLON, is a positive indicator of insider confidence in the company's stock. Disclaimer*
About this update from Costain Group Plc
Costain Group PLC (the Company) 11 December 2025 DIRECTOR/PDMR/PCA DEALING The Company announces that Fiona MacAulay, Non-Executive Director, has purchased 6,347 Ordinary Shares in the Company at £1.57 per share on 10 December 2025. Her resulting shareholding in the Company is 6,347 shares representing 0.00002% of the Company's issued share capital. The Notification of Dealing Form set out below is provided in accordance with the requirements of the UK Market Abuse Regulation. Notification of Dealing Form 1. Details of the Person Discharging Managerial Responsibility ("PDMR") / person closely associated with them ("PCA") a) Name FIONA MACAULAY 2. Reason for the notification a) Position /status NON-EXECUTIVE DIRCETOR (PDMR) b) Initial notification / amendment INITIAL NOTIFICATION 3. Details of the Issuer a) Name COSTAIN GROUP PLC b) LEI code 213800PKIJBZ2EDTKC88 4. Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted a) Description of the financial instrument, type of instrument Identification code ORDINARY SHARES OF 1 PENCE EACH ISIN: GB00B64NSP76 b) Nature of the transaction PURCHASE OF 6,347 SHARES c) Price(s) and volume(s) Price(s) Volume(s) £1.57 6,347 d) Aggregated information - Aggregated volume - Price N/A e) Date of the transaction 10 DECEMBER 2025 f) Place of the transaction XLON Enquiries: Investors and analysts Matt Jones, Costain [email protected] +44 (0) 7860 922 341 Financial media - Headland Andy Rivett-Carnac Charlie Twigg [email protected] +44 (0) 7968 997365 +44 (0) 7946 494568