144 0001813492 XXXXXXXX LIVE 0001032975 LOGITECH INTERNATIONAL S.A. 000-29174 3930 NORTH FIRST STREET C/O LOGITECH INC SAN JOSE CA 95134 5107958500 Arunkundrum Prakash Officer CHIEF OPERATING OFFICER REGISTERED SHARES INTERACTIVE BROKERS LLC

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9900 1039500.00 147296376 09/04/2025 NASDAQ REGISTERED SHARES 05/17/2021 ROLLOVER FROM RSU LOGITECH INTERNATIONAL S.A. N 4900 09/04/2025 COMPENSATION REGISTERED SHARES 09/04/2025 STOCK OPTION EXERCISE AND SALE LOGITECH INTERNATIONAL S.A. N 5000 09/04/2025 COMPENSATION Y SHARES SOLD PURSUANT TO 10B51 PLAN COVERING ROLLOVER FROM RSU AND STOCK OPTION EXERCISE AND SALE SECTION 3 E SHARES OR OTHER UNITS OUTSTANDING FROM FILING JULY 2025 09/04/2025 01/30/2025 CONFORMED SIGNATURE ON FILE