Rockwool

Transaction in Own Shares • Mar 27, 2024

Company announcement for ROCKWOOL A/S Release no. 13 – 2024 to Nasdaq Copenhagen

27 March 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 20 – 26 March 2024:

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last	77,300		167,894,302
announcement]
20 March 2024	3,100	2,190.45	6,790,395
21 March 2024	2,500	2,181.35	5,453,375
22 March 2024	2,500	2,217.95	5,544,875
25 March 2024	5,500	2,210.00	12,155,000
26 March 2024	7,500	2,221.03	16,657,725
Accumulated under the programme (B shares)	98,400		214,495,672

With the transactions stated above, ROCKWOOL A/S owns 158,688 B shares corresponding to 0.73 percent of the Company's total share capital.

An overview showing the transaction data for the period 20 – 26 March 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