PGS ASA - Disclosure of large shareholdings under the Securities Trading Act

Name of the person obliged to notify: UBS Group AG

Residing at: Bahnhofstrasse 45
CH-8001 Zurich

Date of event: October, 24th 2023

Event triggering the notification: Acquisition of shares

Total new holding: 48’078’624 shares representing 5.03% of the 955’310’440
voting rights and of the share capital held indirectly by UBS
Group AG and directly by its subsidiaries: UBS AG, UBS
Switzerland AG, UBS Asset Management (UK) Limited, UBS
Fund Management (Switzerland) AG, Credit Suisse (Schweiz)
AG, Credit Suisse Funds AG.