Subsea 7 S.A. Notification of major holding

Subsea 7 S.A. has received notification of transactions in its shares by a major shareholder. Please see the attachment for details. This information is pursuant to the EU Market Abuse Regulation and subject to the disclosure requirements pursuant to Section 5-12 of the Norwegian Securities Trading Act.

Attachment

• SUBC major shareholding

Source: https://www.globenewswire.com/news-release/2025/06/06/3095183/0/en/Subsea-7-S-A-Notification-of-major-holding.html