Company: BSX
Filing Date: 2025-06-18
Form Type: 11-K
Source: 0000885725-25-000035
Chunk: 2

Company: BOSTON SCIENTIFIC CORP
Filing Date: 2025-06-18
Form: 11-K
Chunk 2
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 5,786,553,723 |
| End of year                                           |     | $                            | 6,775,769,278 |

<div align='center'>See accompanying Notes to the Audited Financial Statements.

3

Notes to the Audited Financial Statements</div>

#### NOTE 1 - DESCRIPTION OF THE PLAN
The following description of the Boston Scientific Corporation 401(k) Retirement Savings Plan, as amended (the Plan), provides only general information. Participants should refer to the Summary Plan Description and the Plan document for a more complete description of the Plan's provisions. Copies of these documents are available from the Employee Benefits Committee (the Committee). Capitalized terms used in this description not otherwise defined herein shall each have the meanings set forth in the Plan.

General

The Plan is a defined contribution plan covering all Eligible Employees who have completed an Hour of Service and have attained 18 years of age. If, as a result of temporary or short-term employment at Boston Scientific Corporation (the Company), an employee satisfies the minimum service requirement for the Plan, the employee will be considered an Eligible Employee for purposes of the Plan. A Participant is an Employee who satisfies the eligibility requirements of the Plan and contributes to the Plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA), as amended. The Plan year is defined as the calendar year.

The Plan is administered by the Committee, whose members are appointed by the Chief Executive Officer of the Company. Vanguard Fiduciary Trust Company (Vanguard) is a fiduciary and trustee of the Plan as well as the recordkeeper of each Plan Participant's account. Newport Trust is the independent fiduciary and investment manager for the Boston Scientific Corporation Company Stock Fund (Company Stock Fund).

Plan Merg ers

The Company completed acquisitions of Relievant Medsystems, Inc. during 2023 and Silk Road Medical, Inc. during 2024. In connection with these transactions, net assets of approximately $20 million from the Relievant Medsystems, Inc. 401(k) Plan and approximately $59 million from the Silk Road Medical, Inc. 401(k) Plan were merged into the Plan and are reflected as assets transferred in within the 2024 Statement of Changes in Net Assets Available for Benefits.

Contributions

The Plan satisfies the requirements of a safe harbor plan, in accordance with Internal Revenue Code (IRC) Section 401(k)(12)(B). An Eligible Employee may contribute between 1% and