144 0001782865 XXXXXXXX LIVE 0001013237 FACTSET RESEARCH SYSTEMS INC 001-11869 45 GLOVER AVENUE NORWALK CT 06850 2038101000 Moskoff Gregory T Officer MD CONTROLLER AND CAO COMMON STOCK CITIGROUP GLOBAL MARKETS

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363 158304.00 38030046 03/24/2025 NYSE COMMON STOCK 03/24/2025 EMPLOYEE STOCK PURCHASE PLAN FACTSET RESEARCH SYSTEMS INC N 50 03/24/2025 COMPENSATION COMMON STOCK 03/24/2025 VESTED SHARE SALE FACTSET RESEARCH SYSTEMS INC N 313 03/24/2025 COMPENSATION Y SHARES BEING SOLD WERE FROM EMPLOYEE STOCK PURCHASE PLAN AND DIRECTLY HELD SHARES RESULTING FROM VARIOUS VESTINGS UNDER SECURITIES TO BE SOLD THE DATE ACQUIRED AND DATE OF PAYMENT WERE VARIOUS YEARS AND DATES 03/24/2025 CONFORMED SIGNATURE ON FILE