Company: BSX
Filing Date: 2025-03-19
Form Type: DEF 14A
Source: 0000885725-25-000017
Chunk: 49

Company: BOSTON SCIENTIFIC CORP
Filing Date: 2025-03-19
Form: DEF 14A
Chunk 49
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#### Certain Beneficial Ownership Matters

#### Security Ownership of Principal Stockholders
Set forth below are stockholders known by us to be the beneficial owner of more than 5% of our common stock, $0.01 par value, as of March 7, 2025. As of March 7, 2025, there were 1,479,070,196 shares of our common stock outstanding.

| Name and Address                                              |     | Number of SharesBeneficially Owned |             |     |    |     | Percent of SharesOutstanding |      |   |
| FMR LLC/Abigail P. Johnson245 Summer Street, Boston, MA 02210 |     |                                    | 139,602,739 |     | -1 |     |                              | 9.44 | % |
| BlackRock, Inc.55 East 52ndStreet, New York, NY 10055         |     |                                    | 127,036,665 |     | -2 |     |                              | 8.59 | % |
| The Vanguard Group100 Vanguard Blvd., Malvern, PA 19355       |     |                                    | 125,449,595 |     | -3 |     |                              | 8.48 | % |

(1) Based solely on an amendment to Schedule 13G filed wi th the SEC o n February 9, 2024 . As of December 29, 2023, FMR LLC reported sole voting power with respect to 131,472,153 shares and each of FMR LLC and Abigail P. Johnson reported sole dispositive power with respect to 139,602,739 shares. FMR and Ms. Johnson each reported that they did not possess shared voting or dispositive power over any shares.

(2) Based solely on an amendment to Schedule 13G filed with the SEC on January 25, 2024. As of December 29, 2023, BlackRock reported sole voting power with respect to 113,711,842 shares and sole dispositive power with respect to 127,036,665 shares. BlackRock reported that it did not possess shared voting or dispositive power over any shares.

(3) Based solely on an amendment to Sch edule 13G filed with th e SEC on February 13, 2024. As of December 29, 2023 , The Vanguard Group reported shared voting power with respect to 1,826,242 shares, sole dispositive power