BOSTON SCIENTIFIC CORP (BSX) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-03 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: BOSTON SCIENTIFIC CORP (BSX) CIK: 0000885725 --- Reporting Owner --- Name: Mahoney Michael F CIK: 0001533022 Role: Director, Officer (Chairman, President & CEO) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-03 | Code: P (Open market purchase) Shares: +186,240 | Price: $48.33 Total Value: $9,001,407.55 Shares Owned After: 1,590,024 | Ownership: D (Direct) Footnotes: [F1] Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $47.87 to $48.47, inclusive. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares purchased at each separate price. [Transaction #2] Security: Common Stock Date: 2026-08-03 | Code: I (Discretionary (intra-plan)) Shares: +22,119 | Price: $48.43 Total Value: $1,071,223.17 Shares Owned After: 22,119 | Ownership: I (Indirect) | Nature: By 401(k) Footnotes: [F2] Acquistion made pursuant to an election by the reporting person to rebalance their holdings under the Company's 401(k) Retirement Savings Plan, which resulted in a discretionary transaction in shares of the Company's common stock. --- Footnotes (Complete Index) --- F1: Represents the weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $47.87 to $48.47, inclusive. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares purchased at each separate price. F2: Acquistion made pursuant to an election by the reporting person to rebalance their holdings under the Company's 401(k) Retirement Savings Plan, which resulted in a discretionary transaction in shares of the Company's common stock. --- Signature --- /s/ /s/ Susan Thompson, Attorney-in-Fact (2026-08-05)