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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 December 31 , 2020 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 000-30833 BRUKER CORPORATION ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of Incorporation or organization ) 40 Manning Road , Billerica , MA ( Address of principal executive offices ) Title of each class Common Stock 04-3110160 ( I.R.S. Employer Identification No. ) 01821 ( Zip Code ) Registrant's telephone number , including area code : ( 978 ) 663-3660 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbols ( s ) BRKR Name of each exchange on which registered Nasdaq Global Select Market 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 No 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 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 . Yes No Non - accelerated filer 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 ( § 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 No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , smaller reporting company , or an 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 > Accelerated filer Smaller reporting company Emerging growth company 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 . 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 . » Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No The aggregate market value of the voting and non - voting stock held by non - affiliates of the registrant as of June 30 , 2020 ( the last business day of the registrant's most recently completed second fiscal quarter ) was $ 2,172,541,232 based on the reported last sale price on the Nasdaq Global Select Market . The number of shares of the registrant's common stock outstanding as of February 25 , 2021 was 151,565,334 . DOCUMENTS INCORPORATED BY REFERENCE Portions of the information required by Part III of this report ( Items 10 , 11 , 12 , 13 and 14 ) are incorporated by reference from the registrant's Definitive Proxy Statement on Schedule 14A for its 2021 Annual Meeting of Stockholders to be filed within 120 days of the close of the registrant's fiscal year .