Rockwool

Transaction in Own Shares • Jan 27, 2021

Company announcement for ROCKWOOL International A/S Release no. 4 – 2021 to Nasdaq Copenhagen

27 January 2021

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

As mentioned in announcement no. 2/2020, ROCKWOOL International A/S has initiated a share buy-back programme which will run from 6 February 2020 until 5 February 2021. During this period, the Company will buy own shares for up to a maximum of EUR 64 million under the programme.

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 January 2021:

Date	Number of A shares	Average purchase price A shares (DKK)	Aggregate amount, A shares (DKK)
[Accumulated, last	18,512		26,405,350
announcement]
20 January 2021
21 January 2021
22 January 2021
25 January 2021
26 January 2021
Accumulated under the	18,512		26,405,350
programme (A shares)

Date	Number of B shares	Average purchase price B shares (DKK)	Aggregate amount, B shares (DKK)
[Accumulated, last	275,915		444,523,803
announcement]
20 January 2021	400	2,477.03	990,812
21 January 2021	500	2,550.56	1,275,280
22 January 2021	500	2,542.93	1,271,465
25 January 2021	400	2,592.50	1,037,000
26 January 2021	430	2,517.74	1,082,628
Accumulated under the	278,145		450,180,988
programme (B shares)

In addition, the Company has in accordance with announcement no. 48/2020 completed the purchase of 57,557 A Shares for a total of EUR 16 million from the ROCKWOOL Foundation.

ROCKWOOL International A/S Hovedgaden 584, DK-2640 Hedehusene, Denmark T (+45) 46 56 03 00 E info@rockwool.com

With the transactions stated above, ROCKWOOL International A/S owns 76,069 A shares and 336,473 B shares corresponding to 1.88 percent of the Company's total share capital.

An overview showing the transaction data for the period 20 – 26 January 2021 is enclosed.

This concludes the share buy-back programme.

Further information: Thomas Harder

Director, Group Treasury & Investor Relations ROCKWOOL International A/S +45 46 55 86 77