Rockwool

Declaration of Voting Results & Voting Rights Announcements • Sep 11, 2025

Company announcement for ROCKWOOL A/S Release no. 55 – 2025 to Nasdaq Copenhagen

11 September 2025

Completion of conversion of A shares to B shares in accordance with the articles of association and information on adjusted number of voting rights and share capital

ROCKWOOL A/S has today completed the conversion of 102,048 A shares to a corresponding number of B shares (each having a nominal value of DKK 1). The conversion is effected in accordance with article 6 of the articles of association and at the request of the holders of the A shares in question.

The company's articles of association have been updated with the resulting changes to the size of the company's A- and B share capital. The total share capital is unchanged. The articles of association can be found on the company's website.

In accordance with Section 32 of the Danish Capital Market Act, ROCKWOOL A/S is required to publish the total number of voting rights and the size of the share capital in the event of changes. Following the completion and registration of the conversion, ROCKWOOL A/S' total number of voting rights and share capital amount to (after the change):

	Share capital (nominal value, DKK)	Number of shares (of DKK 1 each)	Number of votes
Class A shares	97,851,256	97,851,256	978,512,560
Class B shares	113,754,534	113,754,534	113,754,534
Total	211,605,790	211,605,790	1,092,267,094

Further information: Kim Junge Andersen Senior Vice President, CFO ROCKWOOL A/S +45 46 55 80 15

ROCKWOOL A/S Hovedgaden 584, DK-2640 Hedehusene, Denmark T (+45) 46 56 03 00 E info@rockwool.com