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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 Form 10 - K Annual Report pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the fiscal year ended August 31 , 2021 Transition Report pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number : 1-11869 FACTSET RESEARCH SYSTEMS INC . ( Exact name of Registrant as specified in its charter ) FACTSET Delaware ( State or other jurisdiction of incorporation or organization ) Title of each class Common Stock , $ 0.01 Par Value 45 Glover Avenue , Norwalk , Connecticut 06850 ( Address of principal executive office , including zip code ) Registrant's telephone number , including area code : ( 203 ) 810-1000 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbols ( s ) FDS 13-3362547 ( I.R.S. Employer Identification No. ) Name of each exchange on which registered New York Stock Exchange NASDAQ Global Select Market Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes x No o Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes o No x Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes x No o Indicate by check mark whether the registrant has submitted electronically , if any , every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes x No o Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S - K ( §229.405 of this chapter ) is not contained herein , and will not be contained , to the best of registrant's knowledge , in definitive proxy or information statements incorporated by reference in Part III of this Form 10 - K or any amendment to this Form 10 - K . o Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer Non - accelerated filer ■ Accelerated filer Smaller reporting company Emerging growth company ooo If an emerging growth company , indicate by mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act.o Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . X Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes o No x The aggregate market value of the registrant's common stock held by non - affiliates of the registrant based upon the closing price of a share of the registrant's common stock on February 26 , 2021 , the last business day of the registrant's most recently completed second fiscal quarter , as reported by the New York Stock Exchange on that date , was $ 11,494,529,303 . As of October 15 , 2021 , there were 37,640,632 shares of the registrant's common stock outstanding .