Rockwool

Declaration of Voting Results & Voting Rights Announcements • May 28, 2025

Company announcement for ROCKWOOL A/S Release no. 34 – 2025 to Nasdaq Copenhagen

28 May 2025

Total number of voting rights and share capital in ROCKWOOL A/S

On 2 May 2025, ROCKWOOL A/S ("the Company") completed a reduction of its share capital by nominally 4,601,300 DKK. The reduction was carried out by cancellation of treasury B shares in accordance with the resolution adopted at the Company's Annual General Meeting on 2 April 2025.

In accordance with Section 32 of the Danish Capital Market Act, the Company is required to disclose the total number of voting rights and shares in the event of changes. Following completion and registration of the capital reduction, the Company's share capital and total number of voting rights are as follows:

	Share capital (nominal value, DKK)	Number of shares (of 1 DKK each)	Number of votes
Class A shares	98,178,390	98,178,390	981,783,900
Class B shares	113,427,400	113,427,400	113,427,400
Total	211,605,790	211,605,790	1,095,211,300

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