Posti Group Corporation: Share repurchase during week 41

Posti Group Corporation ANNOUNCEMENT 12.10.2026 Posti Group Corporation: Share repurchase during week 41 In the Helsinki Stock Exchange Trade date Shares Average price/ share Total cost 5.10.2026 3 000 13,2267 39 680,10 6.10.2026 3 000 13,2300 39 690,00 7.10.2026 5 000 13,1997 65 998,50 8.10.2026 3 000 13,5400 40 620,00 9.10.2026 3 000 13,6205 40 861,50 Total amount week 41 17 000 13,3441 226 850,10 Posti Group Corporation now holds a total of 208 000 shares including the shares repurchased on 9.10.2026 The share buybacks are executed in compliance with Regulation No. 596/2014 of the European Parliament and Council (MAR) Article 5 and the Commission Delegated Regulation (EU) 2016/1052. On behalf of Posti Group Corporation Nordea Bank Oyj Sami Huttunen Ilari Isomäki Further information for investors and analysts: Marja Mäkinen, Head of Investor Relations, tel. +358 40 671 2999, marja.makinen@posti.com Further information for the media: MediaDesk tel. 020 452 3366, viestinta@posti.com www.posti.com Posti Group Corporation in brief Posti is one of the leading delivery and fulfillment companies in Finland. Sweden, and the Baltics. We make our customers`everyday lives smoother with a wide range of services, which include parcels, freight, and postal services as well as warehouse, fulfillment, and logistics services. Our goal is to transport completely fossil-free throughout the value chain by 2030 and zero our own emissions by 2040. Our net sales in 2025 amounted to EUR 1,447.6 million and we have approximately 13,700 employees. Posti Group`s shares are listed on the Nasdaq Helsinki official list in Finland.