Rockwool

Transaction in Own Shares • Oct 9, 2024

Company announcement for ROCKWOOL A/S Release no. 56 – 2024 to Nasdaq Copenhagen

9 October 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 2 – 8 October 2024:

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last announcement]	321,600		811,040,849
2 October 2024	1,200	3,052.54	3,663,048
3 October 2024	1,300	2,975.40	3,868,020
4 October 2024	1,200	2,984.85	3,581,820
7 October 2024	1,300	2,994.57	3,892,941
8 October 2024	1,400	3,055.20	4,277,280
Accumulated under the programme (B shares)	328,000		830,323,958

With the transactions stated above, ROCKWOOL A/S owns 381,883 B shares corresponding to 1.77 percent of the Company's total share capital.

An overview showing the transaction data for the period 2 – 8 October 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