Sampo plc’s share buybacks week 25/2026

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Sampo plc, stock exchange release, 22 June 2026 at 8:30 am EEST Sampo plc’s share buybacks week 25/2026 During week 25 (15 June 2026 - 19 June 2026), Sampo plc (business code 0142213-3, LEI 743700UF3RL386WIDA22) has acquired its own A shares (ISIN code FI4000552500) as follows: Market (MIC Code) Daily volume (in number of shares) and weighted average price of the purchased shares, EUR* Aggregated weekly volume (in number of shares) and weighted weekly average price of the purchased shares, EUR*     15/06/2026 16/06/2026 17/06/2026 18/06/2026 19/06/2026 Week 25/2026, total AQEU Volume 6,763 116 2,560 2,112 - 11,551 Average price 9.06 9.11 9.09 9.07 - 9.07 CEUX Volume 125,272 68,130 204,398 87,742 - 485,542 Average price 9.07 9.11 9.09 9.05 - 9.08 TQEX Volume 41,273 24,549 49,981 9,816 - 125,619 Average price 9.07 9.11 9.08 9.07 - 9.08 XHEL Volume 243,770 108,670 332,289 128,684 - 813,413 Average price 9.07 9.10 9.09 9.06 - 9.08 Total, all markets Volume 417,078 201,465 589,228 228,354 - 1,436,125 Average price 9.07 9.11 9.09 9.06 - 9.08 * rounded to two decimals On 6 May 2026, Sampo announced a share buyback programme of up to a maximum of EUR 350 million in compliance with the Market Abuse Regulation (EU) 596/2014 (MAR) and the Commission Delegated Regulation (EU) 2016/1052. The programme, which started on 7 May 2026, is based on the authorisation granted by Sampo's Annual General Meeting on 22 April 2026. After the disclosed transactions, the company owns in total 12,989,958 Sampo A shares representing 0.49 per cent of the total number of shares in Sampo plc. Details of each transaction are included as an appendix of this announcement. On behalf of Sampo plc, Morgan Stanley Co. International plc For further information, please contact: Mirko Hurmerinta Interim Head of Investor Relations tel. +358 10 516 0032 Distribution: Nasdaq Helsinki Nasdaq Stockholm Nasdaq Copenhagen London Stock Exchange FIN-FSA The principal media www.sampo.com Attachment Sampo_share_buyback_week_25_2026

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