Mandatory notification of trade in NOS Nova AS

Sandnes, Norway, 29th of May 2026.

NOS Group AS, a close associate of the board member and primary insider Bjørn Rygg, has acquired shares in NOS Nova AS.

Gunnar Brandt-Eilertsen, VP New Projects and primary insider, has sold 1 650 000 shares. After the transaction Gunnar Brandt-Eilertsen has a total holding of 2 945 857 shares in NOS Nova AS.

See attached forms for further details.

This information is subject to the disclosure requirements pursuant to Regulation EU 596/2014 (MAR) article 19 and section 5-12 of the Norwegian Securities Trading Act.

For further information, please contact:

Brita Holstad CEO + 47 951 84 992 bh@horisontenergi.com