Rockwool

Transaction in Own Shares • Jan 15, 2025

Company announcement for ROCKWOOL A/S Release no. 04 – 2025 to Nasdaq Copenhagen

15 January 2025

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 8 – 14 January 2025:

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last	434,700		1,129,636,772
announcement]
8 January 2025	3,500	2,507.97	8,777,895
9 January 2025	2,500	2,461.53	6,153,825
10 January 2025	2,500	2,462.49	6,156,225
13 January 2025	2,500	2,420.54	6,051,350
14 January 2025	2,500	2,426.63	6,066,575
Accumulated under the programme (B shares)	448,200		1,162,842,642

With the transactions stated above, ROCKWOOL A/S owns 502,083 B shares corresponding to 2.32 percent of the Company's total share capital.

An overview showing the transaction data for the period 8 – 14 January 2025 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