X0306 4 2019-02-20 0000885725 BOSTON SCIENTIFIC CORP BSX 0001566080 Ballinger Kevin J. 300 BOSTON SCIENTIFIC WAY MARLBOROUGH MA 01752-1234 1 EVP & Pres, Interven Cardio Common Stock 2019-02-20 4 A 0 37658.0000 0.0000 A 109622.0000 D Common Stock 2019-02-20 4 F 0 16758.0000 40.1100 D 92864.0000 D Performance Share Units 2019-02-20 4 A 0 19038.0000 0.0000 A 2020-12-31 2020-12-31 Common Stock 19038.0000 19038.0000 D On February 22, 2016, the reporting person was awarded a target number of performance share units under the Company's 2016 Total Shareholder Return Performance Share Program, the actual number of which to be earned by the reporting person would be based on the Company's total shareholder return performance percentile relative to that of the other companies in the S&P 500 Healthcare Index over the three annual performance cycles comprising the three-year period ended December 31, 2018 and subject to the completion of the concurrent three-year individual service period. On February 20, 2019, the number of the target performance share units as to which the performance criteria had been satisfied was determined and the individual service period was satisfied. Includes shares acquired under the Boston Scientific Global Employee Stock Purchase Plan based upon the most current data available. Each performance share unit represents the Company's commitment to issue one share of Boston Scientific common stock. On February 12, 2018, the reporting person was awarded a target number of performance share units under the Company's 2018 Free Cash Flow Performance Share Program, the actual number of which to be earned by the reporting person would be based on the Company's 2018 adjusted free cash flow measured against its 2018 financial plan over the one-year performance period ending December 31, 2018 and subject to the completion of a three-year individual service period (inclusive of the performance period). On February 20, 2019, the number of the target performance share units as to which the performance criteria had been satisfied was determined. The performance share units so determined will vest in whole upon the completion of the individual service period that ends on December 31, 2020. /s/ Vance R. Brown, Attorney-in-fact 2019-02-22