undamentalytics Newsletter

Boston Scientific insider trading

Every open-market purchase and sale by Boston Scientific's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Boston Scientific insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Boston Scientific’s insiders pay?

From May 5, 2010 to August 26, 2026, 35 insiders reported 37 open-market purchases and 103 sales not made under a pre-set plan in Boston Scientific. Twelve months after each purchase was reported, the shares were +14.9% against the S&P 500 on average (median +3.9%), over 29 purchases with a full year of prices; 55% beat the index. After sales, the shares moved −1.5% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on November 5, 2010 into $30,533 by November 2, 2026, +7.3% a year. It held shares 42% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $20,384 (+4.6% a year), and held throughout $81,636 (+14.1%).

$0$25.0k$50.0k$75.0k 201020122014201620182020202220242026 $81.6k$30.5k$20.4k
Copying Boston Scientific's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Boston Scientific's insiders from November 5, 2010, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 42% of the time.
Boston Scientific: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Mario Ernest Director 13 −3.1% (13) 39% 4 +8.1% (4) November 17, 2015
Thepaut Eric Francis Yves EVP & Pres, Eur, Mid-East, Afr 0 — — 12 −0.7% (12) May 13, 2024
Ludwig Edward J Director 3 +29.4% (1) 100% 6 −22.2% (6) August 3, 2026
Nanavaty Maulik SVP & Pres, Neuromodulation 0 — — 8 −0.3% (8) June 2, 2021
Ballinger Kevin J. EVP & Pres, Interven Cardio 0 — — 7 +7.4% (7) May 18, 2017
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC 0 — — 7 −6.0% (7) February 6, 2023
Sorenson John Bradley SVP, Global Supply Chain 0 — — 7 −13.7% (7) February 8, 2022
Carruthers Wendy SVP, Human Resources 0 — — 6 +3.2% (6) May 3, 2021
Mirviss Jeffrey B. SVP&Pres, Periph Intervent 0 — — 6 +6.1% (6) March 2, 2017
Connors Nelda J Director 1 −24.1% (1) 0% 4 +3.8% (4) November 30, 2022
Fitzgerald Joseph Michael EVP & President, CRM 0 — — 5 +5.2% (5) May 4, 2016
Nicholas Nj Jr Director 5 +29.6% (5) 40% 0 — November 15, 2012
Abele John E Other 3 +32.1% (3) 100% 1 −5.9% (1) August 24, 2015
Capello Jeffrey D EVP & Chief Financial Officer 0 — — 4 −7.5% (4) December 2, 2013
Dawkins Keith D EVP, Global Chief Med. Off. 0 — — 4 −7.4% (4) March 2, 2017
Habiger David C Director 3 — — 0 — August 7, 2026
Mahoney Michael F Chairman, President & CEO 3 +61.3% (2) 100% 0 — August 5, 2026
Pedersen John B. Pres, Uro & Women's Health 0 — — 3 −26.3% (3) August 15, 2011
Pierce David A EVP Pres MedSurg 0 — — 3 +1.4% (3) February 22, 2022
Sununu John E Director 0 — — 3 +22.6% (3) May 15, 2015
Eddy Jodi Euerle SVP, Chief Info & Digital Off. 0 — — 2 −17.1% (2) August 27, 2020
Fujimori Yoshiaki Director 0 — — 2 −37.2% (2) July 30, 2025
Johnson Kristina M Director 0 — — 2 +16.9% (2) May 19, 2015
Lance Jean Fitterer SVP & Chief Compliance Officer 0 — — 2 +21.0% (2) November 12, 2014
Bartlett Katharine T Director 1 −21.4% (1) 0% 0 — November 30, 2011
Brennan Daniel J. EVP and CFO 0 — — 1 +37.1% (1) February 20, 2024
Dockendorff Charles J Director 1 +20.2% (1) 100% 0 — February 16, 2016
Kucheman William Chief Executive Officer 1 +85.1% (1) 100% 0 — August 2, 2012
Morano Susan E Director 1 — — 0 — August 26, 2026
Pegus Cheryl Director 1 — — 0 — May 21, 2026
Prange Karen SVP&Pres, Uro & Pelvic Health 0 — — 1 +22.6% (1) February 9, 2016
Pratt Timothy A. EVP, GC & Chief Admin Officer 0 — — 1 −7.8% (1) November 21, 2013
Pucel Kenneth EVP, Glob Ops, Qual & Tech 0 — — 1 +10.3% (1) February 21, 2014
Wichmann David S Director 1 +15.9% (1) 100% 0 — November 16, 2021
Woodworth Emily SVP, Global Controller and CAO 0 — — 1 −7.1% (1) December 2, 2024

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Boston Scientific

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Boston Scientific in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 3 buying crowds with six months of prices, it averaged +7.3% against the index. After 10 selling crowds, −0.3%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
May 29, 20263 buying−5.0%not yetnot yet
June 30, 20213 selling+0.8%−11.3%−2.2%
August 31, 20203 selling−23.3%−15.5%−21.1%
September 30, 20193 selling+1.8%−7.6%−21.4%
November 30, 20184 selling+4.4%+2.5%−1.4%
September 29, 20173 selling−21.8%−10.6%+15.4%
March 31, 20173 selling+8.4%+9.7%−2.3%
May 31, 20163 selling+2.4%−14.8%+1.6%
January 29, 20163 selling+18.0%+25.3%+16.1%
February 27, 20153 selling+7.4%+4.8%+6.7%
June 28, 20133 selling+18.5%+14.3%+13.4%
August 31, 20123 buying+2.2%+26.6%+94.1%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 14. Total returns from the month end; past patterns are not a forecast.

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