Rockwool

Transaction in Own Shares • Dec 11, 2024

Company announcement for ROCKWOOL A/S Release no. 67 – 2024 to Nasdaq Copenhagen

11 December 2024

ROCKWOOL A/S – transactions in connection with share buy-back programme

As mentioned in announcement no. 02/2024, ROCKWOOL A/S has initiated a share buy-back programme which will run from 8 February 2024 until 7 February 2025. During this period, the Company will buy own shares for up to a maximum of 160 MEUR.

The programme is implemented in accordance with EU Commission Regulation No 596/2014 of 16 April 2014 and EU Commission Delegated Regulation No 2016/1052 of 8 March 2016, which together constitute the "Safe Harbour" regulation.

The following transactions have been executed during the period 4 – 10 December 2024:

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last announcement]	394,400		1,025,858,780
4 December 2024	2,500	2,612.73	6,531,825
5 December 2024	2,300	2,598.48	5,976,504
6 December 2024	2,000	2,575.23	5,150,460
9 December 2024	2,000	2,570.39	5,140,780
10 December 2024	2,000	2,611.16	5,222,320
Accumulated under the programme (B shares)	405,200		1,053,880,669

With the transactions stated above, ROCKWOOL A/S owns 459,083 B shares corresponding to 2.12 percent of the Company's total share capital.

An overview showing the transaction data for the period 4 – 10 December 2024 is enclosed.

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