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
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
| Name |
City of registered office |
Country of registered office |
| UBS AG |
London, United Kingdom |
|
5. Date on which the threshold was crossed or reached
22-Oct-2025
6. Date on which Issuer notified
24-Oct-2025
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 |
6.518471 |
0.000000 |
6.518471 |
17385732 |
| Position of previous notification (if applicable) |
7.918858 |
0.000000 |
7.918858 |
|
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 |
|
17385732 |
|
6.518471 |
| Sub Total 8.A |
17385732 |
6.518471% |
||
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 |
6.518471 |
|
6.518471% |
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
12. Date of Completion
24-Oct-2025
13. Place Of Completion
Zurich, Switzerland
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