X0306 4 2021-02-21 0000885725 BOSTON SCIENTIFIC CORP BSX 0001529708 Nanavaty Maulik 300 BOSTON SCIENTIFIC WAY MARLBOROUGH MA 01752-1234 1 SVP & Pres, Neuromodulation Common Stock 2021-02-21 4 M 0 1713.0000 0.0000 A 243358.0000 D Common Stock 2021-02-21 4 F 0 593.0000 38.0300 D 242765.0000 D Common Stock 2021-02-22 4 M 0 1883.0000 0.0000 A 244648.0000 D Common Stock 2021-02-22 4 F 0 652.0000 39.2000 D 243996.0000 D Deferred Stock Units 2021-02-21 4 M 0 1713.0000 0.0000 D 2023-02-21 Common Stock 1713.0000 3428.0000 D Deferred Stock Units 2021-02-22 4 M 0 1883.0000 0.0000 D 2021-02-22 Common Stock 1883.0000 0.0000 D Performance Share Units 2021-02-22 4 A 0 6303.0000 0.0000 A 2022-12-31 2022-12-31 Common Stock 6303.0000 6303.0000 D Each deferred stock unit represents the Company's commitment to issue one share of Boston Scientific common stock. Shares of common stock will be issued to the reporting person in four equal annual installments beginning on February 21, 2020, the first anniversary of the date of grant. Shares of common stock will be issued to the reporting person in five equal annual installments beginning on February 22, 2017, the first anniversary of the date of grant. Each performance share unit represents the Company's commitment to issue one share of Boston Scientific common stock. On February 18, 2020, the reporting person was awarded a target number of performance share units under the Company's 2020 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 2020 adjusted free cash flow measured against its 2020 financial plan over the one-year performance period ending December 31, 2020 and subject to the completion of a three-year individual service period (inclusive of the performance period). On February 22, 2021, 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, 2022. /s/ Scott G. Hodgdon, Attorney-in-Fact 2021-02-23