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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 , or 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 No. 1-11083 BOSTON SCIENTIFIC CORPORATION ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) 300 Boston Scientific Way , Marlborough , Massachusetts ( Address of Principal Executive Offices ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , $ 0.01 par value 0.625 % Senior Notes due 2027 5.50 % Mandatory Convertible Preferred Stock , Series A , par value $ 0.01 per share 508 683-4000 ( Registrant's telephone number , including area code ) Trading Symbol ( s ) BSX BSX27 BSX PRA ( I.R.S. Employer Identification No. ) ( Zip Code ) Securities registered pursuant to Section 12 ( g ) of the Act : NONE U 04-2695240 01752-1234 Name of each exchange on which registered New York Stock Exchange Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes : 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 : 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 Accelerated filer Smaller reporting company Emerging growth company New York Stock Exchange New York Stock Exchange 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 shorted period that the registrant was required to submit such files ) . Yes : No No 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 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 Non - accelerated filer The number of shares outstanding of Common Stock , $ 0.01 par value per share , as of January 29 , 2021 was 1,417,165,707 . Documents Incorporated by Reference 0 0 ☐ 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 Act ) . Yes : No The aggregate market value of the registrant's common stock held by non - affiliates was approximately $ 50.0 billion based on the last reported sale price of $ 35.11 of the registrant's common stock on the New York Stock Exchange on June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter . ( For this computation , the registrant has excluded the market value of all shares of common stock of the registrant reported as beneficially owned by executive officers , and directors of the registrant ; such exclusion shall not be deemed to constitute an admission that any such person is an affiliate of the registrant . ) Portions of the registrant's definitive proxy statement to be filed within 120 days of December 31 , 2020 with the Securities and Exchange Commission in connection with its 2021 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10 - K .