Holding(s) in Company
BNP Paribas SA has notified Costain Group PLC of a change in its major holding, with its total voting rights and financial instruments now standing at 3.087152%, down from a previous holding of 5.890404%. This change, which occurred on September 14, 2026, resulted in BNP Paribas Financial Markets holding 8,102,079 voting rights attached to shares, representing 3.075392%, and an additional 30,982 voting rights through a financial instrument swap with a cash settlement and an expiration date of May 12, 2028, accounting for 0.011760%.
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Issuer Details
ISIN
GB00B64NSP76
Issuer Name
COSTAIN GROUP PLC
UK or Non-UK Issuer
UK
Reason for Notification
An acquisition or disposal of voting rights; An acquisition or disposal of financial instruments
Details of person subject to the notification obligation
Name
BNP PARIBAS SA
City of registered office (if applicable)
Country of registered office (if applicable)
FR
Details of the shareholder
| Name | City of registered office | Country of registered office |
| BNP PARIBAS Financial Markets | Paris | FRANCE |
Date on which the threshold was crossed or reached
14-Sep-2026
Date on which Issuer notified
15-Sep-2026
- 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 | 3.075392 | 0.011760 | 3.087152 | 8133061 |
| Position of previous notification (if applicable) | 5.886938 | 0.003466 | 5.890404 | |
| 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 | 8102079 | 3.075392 | ||
| Sub Total 8.A | 8102079 | 3.075392% | ||
| 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
- 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 |
|---|---|---|---|---|---|
| Swap | 12-May-2028 | Cash | 30982 | 0.011760 | |
| Sub Total 8.B2 | 30982 | 0.011760% |
- Information in relation to the person subject to the notification obligation
| 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 |
| BNP PARIBAS SA | BNP PARIBAS FINANCIAL MARKETS | |||
| BNP PARIBAS SA | Securities Services |
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
If date does not apply, explain below
- Additional Information
- Date of Completion
15-Sep-2026
Place Of Completion
PARIS, FRANCE
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