Business
Holding(s) in Company
UBS Group AG's trading book holdings in Costain Group PLC have fallen below the 5% reporting threshold, resulting in a current holding of 0.000000% of voting rights. Previously, UBS held 5.528855% of voting rights. This reduction means UBS is no longer required to report its holdings in Costain Group PLC. Disclaimer*
About this update from Costain Group Plc
TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB00B64NSP76 Issuer Name COSTAIN GROUP PLC UK or Non-UK Issuer UK 2. Reason for Notification An acquisition or disposal of voting rights; Other Comments UBS trading book holdings in Costain Group PLC fell below 5% and are therefore exempt from reporting. 3. Details of person subject to the notification obligation Name UBS Group AG-Investment Bank & Global Wealth Management City of registered office (if applicable) London Country of registered office (if applicable) United Kingdom 4. Details of the shareholder Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above City of registered office (if applicable) Country of registered office (if applicable) 5. Date on which the threshold was crossed or reached 27-Feb-2026 6. Date on which Issuer notified 03-Mar-2026 7. Total positions of person(s) subject to the notification obligation % of voting rights attached to shares (total of 8.A) % of voting rights through financial instruments (total of 8.B 1 + 8.B 2) Total of both in % (8.A + 8.B) Total number of voting rights held in issuer Resulting situation on the date on which threshold was crossed or reached 0.000000 0.000000 0.000000 0 Position of previous notification (if applicable) 5.528855 0.000000 5.528855 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached 8A. Voting rights attached to shares Class/Type of shares ISIN code(if possible) Number of direct voting rights (DTR5.1) Number of indirect voting rights (DTR5.2.1) % of direct voting rights (DTR5.1) % of indirect voting rights (DTR5.2.1) GB00B64NSP76 0 0.000000 Sub Total 8.A 0 0.000000% 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) Type of financial instrument Expiration date Exercise/conversion period Number of voting rights that may be acquired if the instrument is exercised/converted % of voting rights Sub Total 8.B1 8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b)) Type of financial instrument Expiration date Exercise/conversion period Physical or cash settlement Number of voting rights % of voting rights Sub Total 8.B2 9. Information in relation to the person subject to the notification obligation 2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary) Ultimate controlling person Name of controlled undertaking % of voting rights if it equals or is higher than the notifiable threshold % of voting rights through financial instruments if it equals or is higher than the notifiable threshold Total of both if it equals or is higher than the notifiable threshold UBS Group AG (Chain 1) UBS Group AG (Chain 1) UBS AG 10. In case of proxy voting Name of the proxy holder The number and % of voting rights held The date until which the voting rights will be held 11. Additional Information UBS trading book holdings in Costain Group PLC fell below 5% and are therefore exempt from reporting. 12. Date of Completion 03-Mar-2026 13. Place Of Completion Zurich, Switzerland