Boston Scientific Corporation Insider Trading

BSX

Cluster buy

4 insiders bought $9.49M of their own stock in 26 days.

Open-market purchases by executives and directors between Jul 31 and Aug 25. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

−$8.03M

8 buys · 3 sales

Under a 10b5-1 plan

100%

of the value sold

Insiders who bought / sold

5 / 3

executives and directors

Last open-market buy

Aug 2026

Aug 25, 2026

Get an email when BSX's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 25	Susan E Morano Director	Bought	2,040	$49.22	100K	17%	Form 4
Aug 5	David C Habiger Director	Bought	2,100	$47.59	100K	14%	Form 4
Aug 3 – 4	David C Habiger Director	Bought 2 parts	1,182	$48.13 average	57K	8.5%	Form 4
Aug 3	Michael F Mahoney Chairman, President & CEO	Bought	186,240	$48.33	$9M	13%	Form 4
Jul 31	Edward J Ludwig Director	Bought	5,000	$45.48	227K	20%	Form 4
May 20	Cheryl Pegus Director	Bought	1,770	$56.49	100K	New	Form 4
May 20	Edward J Ludwig Director	Bought	3,580	$56.68	203K	16%	Form 4
May 19 – 20	David C Habiger Director	Bought 2 parts	4,450	$56.43 average	251K	47%	Form 4
Feb 2	Michael F Mahoney Chairman, President & CEO	Sold10b5-1 plan 2 parts	160,901	$93.49 average	$15M	9.0%	Form 4
Dec 1, 2025	Arthur C Butcher EVP& Grp Pres, MedSurg & APAC	Sold10b5-1 plan	17,313	$101.55	$1.76M	32%	Form 4
Nov 6, 2025	Ellen M Zane Director	Sold10b5-1 plan	12,891	$98.28	$1.27M	35%	Form 4
Nov 3, 2025	Joseph Michael Fitzgerald EVP & Group Pres, Cardiology	Sold10b5-1 plan 3 parts	50,000	$99.47 average	$4.97M	21%	Form 4
Oct 27, 2025 – Oct 28, 2025	Ellen M Zane Director	Sold10b5-1 plan 2 parts	12,891	$101.38 average	$1.31M	35%	Form 4
Oct 1, 2025	Joseph Michael Fitzgerald EVP & Group Pres, Cardiology	Sold10b5-1 plan 2 parts	50,000	$98.47 average	$4.92M	21%	Form 4
Sep 2, 2025	Joseph Michael Fitzgerald EVP & Group Pres, Cardiology	Sold10b5-1 plan 2 parts	50,000	$105.43 average	$5.27M	21%	Form 4
Aug 1, 2025	Joseph Michael Fitzgerald EVP & Group Pres, Cardiology	Sold10b5-1 plan	50,000	$104.63	$5.23M	21%	Form 4
Aug 1, 2025	Arthur C Butcher EVP& Grp Pres, MedSurg & APAC	Sold10b5-1 plan	17,313	$104.63	$1.81M	32%	Form 4
Jul 29, 2025	Yoshiaki Fujimori Director	SoldNo plan	2,901	$106.99	310K	58%	Form 4
Jul 25, 2025	Edward J Ludwig Director	SoldNo plan	4,000	$106.03	424K	18%	Form 4
Jul 1, 2025	Joseph Michael Fitzgerald EVP & Group Pres, Cardiology	Sold10b5-1 plan	50,000	$106.97	$5.35M	21%	Form 4
Jun 4, 2025	Joseph Michael Fitzgerald EVP & Group Pres, Cardiology	Sold10b5-1 plan	56,372	$102.88	$5.8M	23%	Form 4
Jun 2, 2025	Michael F Mahoney Chairman, President & CEO	Sold10b5-1 plan 2 parts	164,443	$103.69 average	$17.1M	8.9%	Form 4
May 29, 2025	Edward J Ludwig Director	SoldNo plan	4,000	$104.59	418K	15%	Form 4
May 21, 2025	Vance R Brown SVP, GC and Corp. Secretary	Sold10b5-1 plan	4,826	$106.42	514K	13%	Form 4
May 5, 2025	John Bradley Sorenson EVP, Global Operations	Sold10b5-1 plan	4,572	$104.54	478K	20%	Form 4
May 1, 2025	Michael F Mahoney Chairman, President & CEO	Sold10b5-1 plan 2 parts	164,443	$102.48 average	$16.9M	8.6%	Form 4
May 1, 2025	Arthur C Butcher EVP& Grp Pres, MedSurg & APAC	Sold10b5-1 plan	17,314	$102.06	$1.77M	33%	Form 4
Apr 21, 2025	Vance R Brown SVP, GC and Corp. Secretary	Sold10b5-1 plan	4,826	$95.09	459K	12%	Form 4
Apr 1, 2025	Michael F Mahoney Chairman, President & CEO	Sold10b5-1 plan	164,442	$100.01	$16.4M	8.4%	Form 4
Mar 21, 2025	Vance R Brown SVP, GC and Corp. Secretary	Sold10b5-1 plan	4,826	$100.85	487K	11%	Form 4
Mar 3, 2025 – Mar 4, 2025	Emily Woodworth SVP, Global Controller and CAO	Sold10b5-1 plan 2 parts	7,631	$104.95 average	801K	95%	Form 4
Feb 28, 2025	Emily Woodworth SVP, Global Controller and CAO	Sold10b5-1 plan	9,887	$101.13	1000K	82%	Form 4
Feb 24, 2025 – Feb 25, 2025	Jeffrey B. Mirviss EVP&Pres, Periph Intervent	Sold10b5-1 plan 2 parts	7,363	$104.16 average	767K	22%	Form 4
Feb 24, 2025	Ellen M Zane Director	Sold10b5-1 plan	13,586	$104.23	$1.42M	28%	Form 4
Feb 21, 2025	Vance R Brown SVP, GC and Corp. Secretary	Sold10b5-1 plan	4,826	$104.64	505K	9.5%	Form 4
Feb 18, 2025 – Feb 19, 2025	John Bradley Sorenson EVP, Global Operations	Sold10b5-1 plan 2 parts	5,960	$104.84 average	625K	22%	Form 4
Feb 19, 2025	Jeffrey B. Mirviss EVP&Pres, Periph Intervent	Sold10b5-1 plan	1,510	$105.35	159K	4.4%	Form 4
Feb 18, 2025 – Feb 19, 2025	Daniel J. Brennan EVP and CFO	Sold10b5-1 plan 3 parts	84,863	$105.10 average	$8.92M	27%	Form 4
Feb 14, 2025	John Bradley Sorenson EVP, Global Operations	Sold10b5-1 plan	1,201	$106.31	128K	4.3%	Form 4
Feb 12, 2025	John Bradley Sorenson EVP, Global Operations	Sold10b5-1 plan	6,389	$105.06	671K	21%	Form 4

Aug 25
Susan E Morano
Director · bought 2,040 at $49.22
100K
17% of stake
Aug 5
David C Habiger
Director · bought 2,100 at $47.59
100K
14% of stake
Aug 3 – 4
David C Habiger
Director · bought 1,182 at avg $48.13
57K
8.5% of stake
Aug 3
Michael F Mahoney
Chairman, President & CEO · bought 186,240 at $48.33
$9M
13% of stake
Jul 31
Edward J Ludwig
Director · bought 5,000 at $45.48
227K
20% of stake
May 20
Cheryl Pegus
Director · bought 1,770 at $56.49
100K
New position
May 20
Edward J Ludwig
Director · bought 3,580 at $56.68
203K
16% of stake
May 19 – 20
David C Habiger
Director · bought 4,450 at avg $56.43
251K
47% of stake
Feb 210b5-1 plan
Michael F Mahoney
Chairman, President & CEO · sold 160,901 at avg $93.49
$15M
9.0% of stake
Dec 1, 202510b5-1 plan
Arthur C Butcher
EVP& Grp Pres, MedSurg & APAC · sold 17,313 at $101.55
$1.76M
32% of stake
Nov 6, 202510b5-1 plan
Ellen M Zane
Director · sold 12,891 at $98.28
$1.27M
35% of stake
Nov 3, 202510b5-1 plan
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology · sold 50,000 at avg $99.47
$4.97M
21% of stake
Oct 27, 2025 – Oct 28, 202510b5-1 plan
Ellen M Zane
Director · sold 12,891 at avg $101.38
$1.31M
35% of stake
Oct 1, 202510b5-1 plan
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology · sold 50,000 at avg $98.47
$4.92M
21% of stake
Sep 2, 202510b5-1 plan
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology · sold 50,000 at avg $105.43
$5.27M
21% of stake
Aug 1, 202510b5-1 plan
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology · sold 50,000 at $104.63
$5.23M
21% of stake
Aug 1, 202510b5-1 plan
Arthur C Butcher
EVP& Grp Pres, MedSurg & APAC · sold 17,313 at $104.63
$1.81M
32% of stake
Jul 29, 2025No plan
Yoshiaki Fujimori
Director · sold 2,901 at $106.99
310K
58% of stake
Jul 25, 2025No plan
Edward J Ludwig
Director · sold 4,000 at $106.03
424K
18% of stake
Jul 1, 202510b5-1 plan
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology · sold 50,000 at $106.97
$5.35M
21% of stake
Jun 4, 202510b5-1 plan
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology · sold 56,372 at $102.88
$5.8M
23% of stake
Jun 2, 202510b5-1 plan
Michael F Mahoney
Chairman, President & CEO · sold 164,443 at avg $103.69
$17.1M
8.9% of stake
May 29, 2025No plan
Edward J Ludwig
Director · sold 4,000 at $104.59
418K
15% of stake
May 21, 202510b5-1 plan
Vance R Brown
SVP, GC and Corp. Secretary · sold 4,826 at $106.42
514K
13% of stake
May 5, 202510b5-1 plan
John Bradley Sorenson
EVP, Global Operations · sold 4,572 at $104.54
478K
20% of stake
May 1, 202510b5-1 plan
Michael F Mahoney
Chairman, President & CEO · sold 164,443 at avg $102.48
$16.9M
8.6% of stake
May 1, 202510b5-1 plan
Arthur C Butcher
EVP& Grp Pres, MedSurg & APAC · sold 17,314 at $102.06
$1.77M
33% of stake
Apr 21, 202510b5-1 plan
Vance R Brown
SVP, GC and Corp. Secretary · sold 4,826 at $95.09
459K
12% of stake
Apr 1, 202510b5-1 plan
Michael F Mahoney
Chairman, President & CEO · sold 164,442 at $100.01
$16.4M
8.4% of stake
Mar 21, 202510b5-1 plan
Vance R Brown
SVP, GC and Corp. Secretary · sold 4,826 at $100.85
487K
11% of stake
Mar 3, 2025 – Mar 4, 202510b5-1 plan
Emily Woodworth
SVP, Global Controller and CAO · sold 7,631 at avg $104.95
801K
95% of stake
Feb 28, 202510b5-1 plan
Emily Woodworth
SVP, Global Controller and CAO · sold 9,887 at $101.13
1000K
82% of stake
Feb 24, 2025 – Feb 25, 202510b5-1 plan
Jeffrey B. Mirviss
EVP&Pres, Periph Intervent · sold 7,363 at avg $104.16
767K
22% of stake
Feb 24, 202510b5-1 plan
Ellen M Zane
Director · sold 13,586 at $104.23
$1.42M
28% of stake
Feb 21, 202510b5-1 plan
Vance R Brown
SVP, GC and Corp. Secretary · sold 4,826 at $104.64
505K
9.5% of stake
Feb 18, 2025 – Feb 19, 202510b5-1 plan
John Bradley Sorenson
EVP, Global Operations · sold 5,960 at avg $104.84
625K
22% of stake
Feb 19, 202510b5-1 plan
Jeffrey B. Mirviss
EVP&Pres, Periph Intervent · sold 1,510 at $105.35
159K
4.4% of stake
Feb 18, 2025 – Feb 19, 202510b5-1 plan
Daniel J. Brennan
EVP and CFO · sold 84,863 at avg $105.10
$8.92M
27% of stake
Feb 14, 202510b5-1 plan
John Bradley Sorenson
EVP, Global Operations · sold 1,201 at $106.31
128K
4.3% of stake
Feb 12, 202510b5-1 plan
John Bradley Sorenson
EVP, Global Operations · sold 6,389 at $105.06
671K
21% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch BSX, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Peers

Surgical & Medical Instruments & Apparatus · Pick stocks to compare with BSX

CompareIntrinsic value

BDXBecton, Dickinson and Company

$209.19+5.56%52

MMM3M Company

$193.99+9.57%46

SYKStryker Corporation

$339.65+9.37%66

MDLNMedline Inc.

$40.35+18.36%31

BAXBaxter International Inc.

$26.50+3.96%32

SOLVSolventum Corporation

$89.35+5.42%38

RMDResMed Inc.

$240.51+5.91%91

DXCMDexCom, Inc.

$88.47+6.63%85

Held by ETFs

BSX is in 295 US ETFs. The largest of them, with BSX's weight in each:

Spot a number that looks wrong? Check it in BSX's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing BSX

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.