TR-1: Standard form for notification of major holdings
1. Issuer Details
ISIN
GB00BLDRH360
Issuer Name
OSB 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
Lorentzweiler Adjacent Partners S.C.Sp.
City of registered office (if applicable)
Howald
Country of registered office (if applicable)
Luxembourg
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
15-Sep-2026
6. Date on which Issuer notified
16-Sep-2026
7. Total positions of person(s) subject to the notification obligation
| % of voting rights attached | % of voting rights through financial | Total of both in % (8.A + 8.B) | Total number of voting rights held in issuer |
| to shares (total of 8.A) | instruments (total of 8.B 1 + 8.B 2) | |||
| Resulting situation on the date on which threshold was crossed or reached | 5.087900 | 0.000000 | 5.087900 | 17238397 |
| Position of previous notifi...

