Rockwool — Director's Dealing 2026

May 22, 2026

A

ROCKWOOL

Company announcement

for ROCKWOOL A/S

Release no. 18 - 2026

to Nasdaq Copenhagen

22 May 2026

Report on transactions of executives and related parties in ROCKWOOL A/S shares

ROCKWOOL A/S has received and hereby provides notification pursuant to article 19 of regulation (EU) no. 596/2014 of the below transactions related to shares in ROCKWOOL A/S made by persons discharging managerial responsibilities and/or persons closely related with them.

1	Details of the person discharging managerial responsibilities/person closely associated
a)	Name	Kim Junge Andersen
2	Reason for the notification
a)	Position/status	Member of Group Management, Executive Vice President, Chief Financial Officer
b)	Initial notification/Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	ROCKWOOL A/S
b)	LEI	213800QRC7LNX935OZ09
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code	B share (DK0063855168)
b)	Nature of the transaction	Vesting of restricted share units received under the long-term incentive scheme 2023
c)	Price(s) and volume(s)	Price(s) Volume(s)
		0 DKK 6,511 shares
d)	Aggregated information - Aggregated volume - Price	6,511 shares 0 DKK
e)	Date of the transaction	2026-05-22
f)	Place of the transaction	Nasdaq Copenhagen A/S

Further information:

Torben Schwaner Dehlholm

Group General Counsel

ROCKWOOL A/S

+45 46 56 03 00

ROCKWOOL A/S

Hovedgaden 584, DK-2640 Hedehusene, Denmark

T (+45) 46 56 03 00 E info@rockwool.com

ROCKWOOL A/S, VAT-number: 54879415