Rockwool

Transaction in Own Shares • Dec 4, 2024

Company announcement for ROCKWOOL A/S Release no. 65 – 2024 to Nasdaq Copenhagen

4 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 27 November – 3 December 2024:

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last	378,600		984,346,505
announcement]
27 November 2024	3,500	2,664.68	9,326,380
28 November 2024	3,000	2,690.80	8,072,400
29 November 2024	3,100	2,600.11	8,060,341
2 December 2024	3,200	2,586.47	8,276,704
3 December 2024	3,000	2,592.15	7,776,450
Accumulated under the programme (B shares)	394,400		1.025.858,780

With the transactions stated above, ROCKWOOL A/S owns 448,283 B shares corresponding to 2.07 percent of the Company's total share capital.

An overview showing the transaction data for the period 27 November – 3 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