Correction: Mandatory notification of trade

Reference is made to the stock exchange announcement made by Castellum Aktiebolag (“Castellum”) on 19 March 2025, where it was announced that Castellum had acquired 87,717 shares in Entra ASA (“Entra”) through purchases in the market. Due to calculation errors, the correct number of shares bought in Entra in the market on 19 March 2025 is 81,717 shares.

As a result, and subject to due settlement of the mandatory offer by Castellum of 18 February 2025 which expired on 19 March 2025, Castellum will own in total 61,975,535 shares in Entra, representing approximately 34.027802% of the total 182,132,055 outstanding shares and votes in Entra.

Please see corrected notification form in accordance with Article 19 of the EU Market Abuse Regulation attached.