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Table of Content UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) Annual report pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 for the fiscal year ended December 31 , 2020 or 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 001-34218 COGNEX CORPORATION ( Exact name of registrant as specified in its charter ) Massachusetts ( State or other jurisdiction of incorporation or organization ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of Each Class Common Stock , par value $ .002 per share One Vision Drive Natick , Massachusetts 01760-2059 ( 508 ) 650-3000 ( Address , including zip code , and telephone number , including area code , of principal executive offices ) Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes Large accelerated filer 0 Non - accelerated filer Trading Symbol ( s ) CGNX 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 Yes ■ Name of Exchange on Which Registered The NASDAQ Stock Market LLC Yes No 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 . No 0 Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes Accelerated filer 0 Smaller reporting company ☐ Emerging growth company 04-2713778 No ☐ 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 . ( Check one ) : Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes 0 ( I.R.S. Employer Identification No. ) No ■ If an emerging growth company , indicate by check 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 . No ☐ No Aggregate market value of voting stock held by non - affiliates of the registrant as of June 28 , 2020 : $ 9,792,441,959 Common stock , par value $ .002 per share , outstanding as of January 31 , 2021 : 176,028,184 shares DOCUMENTS INCORPORATED BY REFERENCE : The registrant intends to file a Definitive Proxy Statement pursuant to Regulation 14A within 120 days of the end of the fiscal year ended December 31 , 2020 . Portions of such Proxy Statement are incorporated by reference in Part III of this report .