Company Announcement:

Transactions in connection with share buy-back programme 11-17 December 2025, thereby completing the programme

Vestas Wind Systems A/S, Aarhus, 18 December 2025
Company announcement No. 30/2025

On 5 November 2025, Vestas announced the initiation of a share buy-back programme, cf. Company Announcement No. 24/2025. The programme is implemented in accordance with Regulation No. 596/2014 of the European Parliament and of the Council of 16 April 2014 on market abuse (MAR) and the Commission Delegated Regulation (EU) 2016/1052 (the "Safe Harbour Regulation”).

Prior to the share buy-back, Vestas held 12,357,143 treasury shares, equal to 1.2 percent of the share capital.

Under the programme, Vestas will buy back shares for an amount up to DKK 1,120m (approx. EUR 150m) in the period from 6 November 2025 to 17 December 2025.

The following transactions have been made under the programme during the period 11 December to 17 December 2025:

Number of
shares
Weighted average purchase price, DKKTransaction value,
DKK
Previously accumulated under the programme5,945,000155.30923,282,098.50
Transactions during the period:
11 December 2025:220,000169.2037,223,186.00
12 December 2025:220,000171.9737,834,214.00
15 December 2025:210,000173.0336,335,418.00
16 December 2025:250,000170.5442,634,100.00
17 December 2025:247,800172.2842,689,968.02
Total accumulated during the week1,147,800171.39196,716,886,02
Total accumulated under the programme7,092,800157.911,119,998,984.52

Details of all the transactions relating to the share buy-back programme during the period are presented in the attached appendix.

The share buy-back programme initiated on 6 November 2025 is hereby finalised.

Contact details
Vestas Wind Systems A/S, Denmark

Daniel Patterson, Vice President
Investor Relations
Tel: +45 2669 2725

Frederik Holm Jacobsen, Senior Specialist
Investor Relations
Tel: + 45 2835 3365