144 0001769347 XXXXXXXX LIVE 0001988894 Amer Sports, Inc. 001-41943 SILTASAARENKATU 8-10 FL-00530 HELSINKI H9 00511 358 207 122 500 Page Andrew E Officer GROUP CHIEF FINANCIAL OFFICER ORDINARY SHARES CITIGROUP GLOBAL MARKETS

390 GREENWICH STREET NEW YORK NY 10013

6086 136073.00 553631196 04/16/2025 NYSE ORDINARY SHARES 04/16/2025 RESTRICTED STOCK VESTING AMER SPORTS INC N 6086 04/16/2025 COMPENSATION N ANDREW PAGE

SILTASAARENKATU 8-10 FL-00530 HELSINKI H9 00511

ORDINARY SHARES 03/13/2025 163207 4343269.00 THESE SHARES WERE SOLD TO COVER TAX OBLIGATIONS ARISING FROM THE VESTING AND SETTLEMENT OF EQUITY AWARDS. THE SALES TOOK PLACE APRIL 16 2025. SECTION 3 D BASED ON INDICATIVE MARKET PRICING UNDER SECURITIES TO BE SOLD DATE ACQUIRED WERE VARIOUS DATES. THESE WERE FROM LTIP 04/16/2025 CONFORMED SIGNATURE ON FILE