Boston Scientific: Mahoney trust gifts 149,992 shares

Mahoney's reported position also includes 1,590,024 direct shares and 22,112 shares in the 401(k) plan.

Available on EDGAR 11/06/2026 - 04:34 PM EST Accepted by SEC EDGAR 11/06/2026 - 04:33 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Michael F. Mahoney reported acquisition or exercise transactions in this Form 4 filing. Boston Scientific Corp. (BSX) reported bona fide gifts of 149,992 and 102,249 common shares on November 4, 2026, by The Michael F. Mahoney Term Irrevocable Trust - 2025 and The Michael F. Mahoney 2 Year Qualified Annuity Trust - 2024, respectively. Both trusts are administered by independent trustees. The report lists Michael F. Mahoney’s holdings on November 4, 2026 as 1,590,024 shares held directly and 22,112 shares through the company’s 401(k) Retirement Savings Plan.

Insider Trade Summary

252,241 shares gifted

Gift 2 txns

Insider Mahoney Michael F

Role Chairman, President & CEO

Type	Security	Shares	Price	Value
Gift	Common Stock F1	149,992	$0.00	$0.00
Gift	Common Stock F2	102,249	$0.00	$0.00
Holding	Common Stock	--	--	--
Holding	Common Stock F3	--	--	--

Holdings After Transaction: Common Stock — 252,241 shares (Indirect, By Trust); Common Stock — 1,590,024 shares (Direct); Common Stock — 22,112 shares (Indirect, By 401(k))

Holdings Before and After: Common Stock, 0 to 252,241 shares (Indirect, By Trust)

Footnotes (3)

1. F1. This transaction involved a gift of securities by The Michael F. Mahoney Term Irrevocable Trust - 2025, which is administered by an independent trustee.
2. F2. This transaction involved a gift of securities by The Michael F. Mahoney 2 Year Qualified Annuity Trust - 2024, which is administered by an independent trustee.
3. F3. Balance reflects the most current data available with regard to share holdings in the Company's 401(k) Retirement Savings Plan.

Key Figures

Common shares in gift transaction: 149,992 shares Common shares in gift transaction: 102,249 shares Direct common shares held: 1,590,024 shares +1 more

4 metrics

Common shares in gift transaction 149,992 shares The Michael F. Mahoney Term Irrevocable Trust - 2025; November 4, 2026

Common shares in gift transaction 102,249 shares The Michael F. Mahoney 2 Year Qualified Annuity Trust - 2024; November 4, 2026

Direct common shares held 1,590,024 shares Michael F. Mahoney; reported November 4, 2026

Common shares held through 401(k) 22,112 shares Michael F. Mahoney; reported November 4, 2026

Key Terms

Bona fide gift, independent trustee, 401(k) Retirement Savings Plan

3 terms

Bona fide gift regulatory

"Bona fide gift"

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

independent trustee technical

"administered by an independent trustee"

401(k) Retirement Savings Plan financial

"Company's 401(k) Retirement Savings Plan"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many BSX shares did the trusts gift?

The two trusts reported bona fide gifts of 149,992 and 102,249 common shares on November 4, 2026. The footnotes identify them as The Michael F. Mahoney Term Irrevocable Trust - 2025 and The Michael F. Mahoney 2 Year Qualified Annuity Trust - 2024; each is administered by an independent trustee.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mahoney Michael F

(Last) (First) (Middle)

300 BOSTON SCIENTIFIC WAY

(Street)

MARLBOROUGH MASSACHUSETTS 01752-1234

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BOSTON SCIENTIFIC CORP [ BSX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman, President & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/04/2026		G(1)		149,992	A	$0.0000	149,992	I	By Trust
Common Stock	11/04/2026		G(2)		102,249	A	$0.0000	252,241	I	By Trust
Common Stock								1,590,024	D
Common Stock								22,112(3)	I	By 401(k)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction involved a gift of securities by The Michael F. Mahoney Term Irrevocable Trust - 2025, which is administered by an independent trustee.

2. This transaction involved a gift of securities by The Michael F. Mahoney 2 Year Qualified Annuity Trust - 2024, which is administered by an independent trustee.

3. Balance reflects the most current data available with regard to share holdings in the Company's 401(k) Retirement Savings Plan.

	/s/ Susan Thompson, Attorney-in-Fact	11/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)