StockData
BSXNYSESurgical & Medical Instruments & ApparatusFiscal year ends December 31

BOSTON SCIENTIFIC CORP

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 3, 2026
$45.05+0.66 (+1.49%)

Close on Oct 19, 2026

Market cap
$66.44B
P/E (TTM)
18.2
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
92.1%
1.34B of 1.45B shares
Institutional holders
1,474
147 new, 326 sold out
Net institutional buying
8M
In Q2 2026
Insider trades, 12 months
10 buys · 9 sales
Net sold $14.31M

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
BlackRock, Inc.113,006,6717.60%13G (passive) amendmentMar 31, 2025
Vanguard Capital Management111,127,2057.47%13G (passive)Mar 31, 2026
FMR LLC110,320,9387.50%13G (passive) amendmentJun 30, 2025

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of BSXValueChange% of portfolio
BlackRock, Inc.129,680,9168.95%$5.53B−2,141,1210.08%
Vanguard Capital Management LLC97,087,5536.70%$4.14B+675,9850.09%
State Street Corp70,111,1964.84%$2.99B+2,124,3490.09%
Primecap Management Co/Ca/50,520,9143.49%$2.16B+17,991,1401.28%
FMR LLC45,702,8453.15%$1.95B−28,523,5500.08%
Geode Capital Management, LLC33,440,1022.31%$1.42B+154,3450.08%
Vanguard Portfolio Management LLC29,792,7942.06%$1.27B−3,4170.06%
D. E. Shaw & Co., Inc.25,457,4091.76%$1.09B+1,145,0570.52%
Massachusetts Financial Services Co /Ma/24,859,1911.72%$1.50B+13,862,6190.48%
JPMorgan Chase & Co23,907,8381.65%$1.04B−9,442,3190.06%
Arrowstreet Capital, Limited Partnership23,293,9131.61%$994.18M+9,402,2450.44%
Norges Bank21,170,0291.46%$903.54MNew0.09%
Two Sigma Investments, LP19,359,0231.34%$826.24M+9,947,7920.60%
Morgan Stanley18,947,1471.31%$808.66M−3,319,5170.04%
Jupiter Topco LLC18,822,8531.30%$803.36MNew0.33%
Bollard Group LLC18,420,7201.27%$786.20K−111,45323.93%
Goldman Sachs Group Inc16,954,3421.17%$723.61M−1,937,2820.06%
Capital World Investors16,812,2571.16%$717.60M+1,502,5190.08%
UBS Group AG16,352,4201.13%$697.92M+1,527,7580.09%
Wellington Management Group Llp15,301,8281.06%$653.08M−3,531,5780.11%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 20261,4741.34B92.1%147 / 587614 / 326206M198M
Q1 20261,6791.34B92.8%196 / 677637 / 280313M197M
Q4 20251,7901.37B94.6%235 / 668692 / 129130M129M
Q3 20251,7161.38B95.1%179 / 768559 / 131125M107M
Q2 20251,6941.36B93.9%156 / 754552 / 9191M78M
Q1 20251,6481.35B93.2%231 / 668555 / 7488M68M
Q4 20241,5191.34B92.7%220 / 618492 / 8479M83M
Q3 20241,4021.35B93.2%166 / 565478 / 76179M59M
Q2 20241,3231.36B93.7%171 / 554419 / 5374M98M
Q1 20241,2261.40B96.3%158 / 441452 / 7090M68M
Q4 20231,1511.39B95.7%178 / 442377 / 68122M73M
Q3 20231,0591.34B92.4%99 / 440353 / 9582M63M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of BSXValue% of fundAs of
Vanguard Total Stock Market Index Fund47,181,2843.26%$2.01B0.09%Jun 30, 2026
Vanguard 500 Index Fund38,518,7882.66%$1.64B0.10%Jun 30, 2026
Vanguard Primecap Fund30,831,0392.13%$1.32B1.37%Jun 30, 2026
iShares Core S&P 500 ETF20,445,3451.41%$872.61M0.10%Jun 30, 2026
Fidelity 500 Index Fund18,978,2371.31%$916.84M0.11%May 31, 2026
Growth Fund of America13,027,8390.90%$629.37M0.17%May 31, 2026
Vanguard Health Care Fund12,474,1120.86%$582.92M1.53%Jul 31, 2026
State Street(R) Health Care Select Sector SPDR(R) ETF10,500,6470.72%$448.17M1.10%Jun 30, 2026
Vanguard Growth Index Fund9,210,3390.64%$393.10M0.10%Jun 30, 2026
Vanguard Capital Opportunity Fund8,820,2060.61%$376.45M1.15%Jun 30, 2026
Vanguard Institutional Index Fund8,069,0420.56%$344.39M0.10%Jun 30, 2026
Vanguard Value Index Fund7,086,7570.49%$302.46M0.12%Jun 30, 2026
AMCAP Fund6,913,1840.48%$333.98M0.34%May 31, 2026
Janus Henderson Enterprise Fund6,658,9700.46%$284.20M1.27%Jun 30, 2026
Strategic Advisers Fidelity U.S. Total Stock Fund6,238,6510.43%$301.39M0.12%May 31, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Michael F. MahoneyChairman, President & CEO, Director1,612,1430.11%Aug 5, 2026
Padraig Andrew O'ConnorEVP, Global Operations7,8920.00%Sep 3, 2026
Emily WoodworthSVP, Global Controller and CAO6,0530.00%Aug 12, 2026
Jonathan MonsonEVP and CFO48,9710.00%Aug 11, 2026
Joseph Michael FitzgeraldEVP & Group Pres, Cardiology283,3390.02%Aug 3, 2026
Arthur C. ButcherEVP& Grp Pres, MedSurg & APAC78,1220.01%May 4, 2026
Vance R. BrownEVP, GC and Corp. Secretary55,1340.00%Feb 18, 2026
Miriam O'SullivanSVP, Chief HR Officer19,3240.00%Feb 18, 2026
John Bradley SorensonEVP, Global Operations18,7050.00%May 6, 2025
Jeffrey B. MirvissEVP&Pres, Periph Intervent50,7660.00%Feb 25, 2025
Daniel J. BrennanEVP and CFO283,6580.02%Feb 19, 2025
Wendy CarruthersEVP, Human Resources29,3080.00%Dec 4, 2024
Susan E. MoranoDirector13,7840.00%Aug 26, 2026
David C. HabigerDirector17,1600.00%Aug 7, 2026
Edward J. LudwigDirector30,3590.00%Aug 3, 2026
Cheryl PegusDirector1,7700.00%May 21, 2026
Christophe Pierre WeberDirector2,6460.00%May 11, 2026
David S. WichmannDirector45,3820.00%May 11, 2026
Cathy R. SmithDirector1410.00%May 11, 2026
Jessica L. MegaDirector12,0350.00%May 11, 2026
Ellen M. ZaneDirector27,9340.00%May 11, 2026
Yoshiaki FujimoriDirector2,0810.00%Jul 30, 2025
John E. SununuDirector54,7230.00%May 9, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Padraig Andrew O'Connor
EVP, Global Operations
Sep 2, 2026Tax withholding−567$48.37$27.43K7,892
Padraig Andrew O'Connor
EVP, Global Operations
Sep 2, 2026Option exercise+1,171––8,459
Susan E. Morano
Director
Aug 25, 2026Buy+2,040$49.22$100.41K13,784
Emily Woodworth
SVP, Global Controller and CAO
Aug 11, 2026Discretionary+2,930$51.19$149.99K2,930
Jonathan Monson
EVP and CFO
Aug 10, 2026Discretionary+9,908$50.46$499.96K9,908
David C. Habiger
Director
Aug 5, 2026Buy+2,100$47.59$99.94K17,160
David C. Habiger
Director
Aug 4, 2026Buy+140$48.59$6.80K15,060
Michael F. Mahoney
Chairman, President & CEO, Director
Aug 3, 2026Discretionary+22,119$48.43$1.07M22,119
Michael F. Mahoney
Chairman, President & CEO, Director
Aug 3, 2026Buy+186,240$48.33$9.00M1,590,024
David C. Habiger
Director
Aug 3, 2026Buy+1,042$48.07$50.09K14,920
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology
Jul 31, 2026Discretionary+64,198$46.73$3.00M64,198
Edward J. Ludwig
Director
Jul 31, 2026Buy+5,000$45.48$227.40K30,359
Jonathan Monson
EVP and CFO
Jul 1, 2026Tax withholding−1,010$43.06$43.49K39,063
Jonathan Monson
EVP and CFO
Jul 1, 2026Option exercise+2,087––40,073
Michael F. Mahoney
Chairman, President & CEO, Director
May 28, 2026Gift−386,755––0
Cheryl Pegus
Director
May 20, 2026Buy+1,770$56.49$99.99K1,770
David C. Habiger
Director
May 20, 2026Buy+2,250$55.92$125.82K13,878
Edward J. Ludwig
Director
May 20, 2026Buy+3,580$56.68$202.91K25,359
David C. Habiger
Director
May 19, 2026Buy+2,200$56.95$125.29K11,628
Edward J. Ludwig
Director
May 7, 2026Award+3,800––21,779
Christophe Pierre Weber
Director
May 7, 2026Award+1,767––2,646
Christophe Pierre Weber
Director
May 7, 2026Award+1,140––3,786
Susan E. Morano
Director
May 7, 2026Award+3,800––10,463
Susan E. Morano
Director
May 7, 2026Award+1,281––11,744
Ellen M. Zane
Director
May 7, 2026Award+3,800––27,934
Jessica L. Mega
Director
May 7, 2026Award+3,800––12,035
David S. Wichmann
Director
May 7, 2026Award+3,800––45,382
David C. Habiger
Director
May 7, 2026Award+3,800––9,428
Arthur C. Butcher
EVP& Grp Pres, MedSurg & APAC
May 2, 2026Option exercise+2,102––57,894
Arthur C. Butcher
EVP& Grp Pres, MedSurg & APAC
May 2, 2026Tax withholding−1,007$56.50$56.90K56,887
Padraig Andrew O'Connor
EVP, Global Operations
May 2, 2026Option exercise+1,802––7,896
Padraig Andrew O'Connor
EVP, Global Operations
May 2, 2026Tax withholding−872$56.50$49.27K7,024
Christophe Pierre Weber
Director
Mar 2, 2026Award+323––879
Christophe Pierre Weber
Director
Mar 2, 2026Award+556––556
Susan E. Morano
Director
Mar 2, 2026Award+24––6,663
Emily Woodworth
SVP, Global Controller and CAO
Mar 1, 2026Tax withholding−372$76.85$28.59K2,859
Emily Woodworth
SVP, Global Controller and CAO
Mar 1, 2026Option exercise+838––3,231
Arthur C. Butcher
EVP& Grp Pres, MedSurg & APAC
Feb 19, 2026Discretionary+6,851$75.76$519.03K20,205
Miriam O'Sullivan
SVP, Chief HR Officer
Feb 16, 2026Option exercise+990––17,593
Miriam O'Sullivan
SVP, Chief HR Officer
Feb 16, 2026Tax withholding−291$74.73$21.75K17,302
Padraig Andrew O'Connor
EVP, Global Operations
Feb 16, 2026Option exercise+905––6,433
Padraig Andrew O'Connor
EVP, Global Operations
Feb 16, 2026Tax withholding−339$74.73$25.33K6,094
Emily Woodworth
SVP, Global Controller and CAO
Feb 16, 2026Tax withholding−283$74.73$21.15K2,393
Emily Woodworth
SVP, Global Controller and CAO
Feb 16, 2026Option exercise+637––2,676
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology
Feb 16, 2026Option exercise+3,960––215,713
Joseph Michael Fitzgerald
EVP & Group Pres, Cardiology
Feb 16, 2026Tax withholding−1,806$74.73$134.96K213,907
Jonathan Monson
EVP and CFO
Feb 16, 2026Option exercise+990––38,426
Jonathan Monson
EVP and CFO
Feb 16, 2026Tax withholding−440$74.73$32.88K37,986
Michael F. Mahoney
Chairman, President & CEO, Director
Feb 16, 2026Tax withholding−7,865$74.73$587.75K1,576,860
Michael F. Mahoney
Chairman, President & CEO, Director
Feb 16, 2026Option exercise+16,265––1,584,725
Vance R. Brown
EVP, GC and Corp. Secretary
Feb 16, 2026Option exercise+1,839––55,134
Vance R. Brown
EVP, GC and Corp. Secretary
Feb 16, 2026Tax withholding−890$74.73$66.51K54,244
Arthur C. Butcher
EVP& Grp Pres, MedSurg & APAC
Feb 16, 2026Tax withholding−1,229$74.73$91.84K55,792
Arthur C. Butcher
EVP& Grp Pres, MedSurg & APAC
Feb 16, 2026Option exercise+2,546––57,021
Miriam O'Sullivan
SVP, Chief HR Officer
Feb 14, 2026Option exercise+1,124––16,932
Miriam O'Sullivan
SVP, Chief HR Officer
Feb 14, 2026Tax withholding−329$74.73$24.59K16,603
Padraig Andrew O'Connor
EVP, Global Operations
Feb 14, 2026Option exercise+1,190––5,977
Padraig Andrew O'Connor
EVP, Global Operations
Feb 14, 2026Tax withholding−449$74.73$33.55K5,528
Emily Woodworth
SVP, Global Controller and CAO
Feb 14, 2026Tax withholding−296$74.73$22.12K2,039
Emily Woodworth
SVP, Global Controller and CAO
Feb 14, 2026Option exercise+661––2,335

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
F. Mahoney Michael
Officer, Director
Feb 2, 2026160,901$15.04MFeb 2, 2026Performance Shares
C. Butcher Arthur
Officer
Dec 1, 202517,313$1.76MDec 1, 2025Stock Option Exercise
Ellen M. Zane
Director
Nov 6, 20252,901$284.17KNov 6, 2025stock grant
M. Fitzgerald Joseph
Officer
Nov 3, 202550,000$4.97MNov 3, 2025Stock Option Exercise
Ellen M. Zane
Director
Oct 28, 20252,901$296.59KOct 28, 2025Stock Grant
Ellen M. Zane
Director
Oct 27, 20259,990$1.01MOct 27, 2025Stock Grant
M. Fitzgerald Joseph
Officer
Oct 1, 202550,000$4.92MOct 1, 2025Stock Option Exercise
M. Fitzgerald Joseph
Officer
Sep 2, 202550,000$5.27MSep 2, 2025Stock Option Exercise
M. Fitzgerald Joseph
Officer
Aug 1, 202550,000$5.23MAug 1, 2025Stock Option Exercise
C. Butcher Arthur
Officer
Aug 1, 202517,313$1.81MAug 1, 2025Stock Option Exercise
Fujimori Yoshiaki
Director
Jul 29, 20252,901$310.38KJul 29, 2025Restricted Stock
Edward J. Ludwig
Director
Jul 25, 20254,000$429.84KJul 25, 2025RSU Granted Shares
M. Fitzgerald Joseph
Officer
Jul 1, 202550,000$5.35MJul 1, 2025Stock Option Exercise
M. Fitzgerald Joseph
Officer
Jun 4, 202556,372$5.80MJun 4, 2025Stock Option Exercise
F. Mahoney Michael
Officer, Director
Jun 2, 2025164,443$17.05MJun 2, 2025Restricted Stock