LYTIR

Company · BSX

Boston Scientific Corporation

Name as listed on its exchange; filed with the SEC as BOSTON SCIENTIFIC CORP.

Nasdaq's symbol directory lists BSX on the New York Stock Exchange as “Boston Scientific Corporation Common Stock”.

In the 12 months to Nov 8, 2026: insiders bought on 10 occasions ($10.0M); 1 filing by holders of 5% or more; 19 congressional trade disclosures; 7 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $10.0M in total; Insider sales: $0 in total.May: Insider purchases $554KJul: Insider purchases $227KAug: Insider purchases $9.3MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $10.0MInsider sales below: $0
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Mahoney Michael F, Chairman, President & CEO bought on 1 day latest Aug 3, 2026 bought $9.0M
  2. LUDWIG EDWARD J bought on 2 days latest Jul 31, 2026 bought $430K
  3. Habiger David C bought on 5 days latest Aug 5, 2026 bought $408K
  4. Morano Susan E bought on 1 day latest Aug 25, 2026 bought $100K
  5. Pegus Cheryl bought on 1 day latest May 20, 2026 bought $100K
Every trade (10)
  1. BUYMorano Susan E bought Aug 25, 2026 2,040 shares filing $100K
  2. BUYHabiger David C bought Aug 5, 2026 2,100 shares filing $100K
  3. BUYHabiger David C bought Aug 4, 2026 140 shares filing $7K
  4. BUYMahoney Michael F, Chairman, President & CEO bought Aug 3, 2026 186,240 shares filing $9.0M
  5. BUYHabiger David C bought Aug 3, 2026 1,042 shares filing $50K
  6. BUYLUDWIG EDWARD J bought Jul 31, 2026 5,000 shares filing $227K
  7. BUYLUDWIG EDWARD J bought May 20, 2026 3,580 shares filing $203K
  8. BUYHabiger David C bought May 20, 2026 2,250 shares filing $126K
  9. BUYPegus Cheryl bought May 20, 2026 1,770 shares filing $100K
  10. BUYHabiger David C bought May 19, 2026 2,200 shares filing $125K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. FMR LLC filed Aug 6, 2026 Schedule 13G/A passive 46,378,258 shares filing 3.1%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Kevin Hern (R-OK01): Sale Sep 9, 2026 reported Sep 25, 2026 one of 99 trades the member reported that day House Stocks (including ADRs) owner: joint $50,001 - $100,000
  2. Kevin Hern (R-OK01): Sale Sep 4, 2026 reported Sep 25, 2026 one of 99 trades the member reported that day House Stocks (including ADRs) owner: joint $50,001 - $100,000
  3. Kevin Hern (R-OK01): Sale Sep 3, 2026 reported Sep 25, 2026 one of 99 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  4. Kevin Hern (R-OK01): Sale Sep 3, 2026 reported Sep 25, 2026 one of 99 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  5. Kevin Hern (R-OK01): Sale Sep 3, 2026 reported Sep 25, 2026 one of 99 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  6. Kevin Hern (R-OK01): Sale Aug 31, 2026 reported Sep 25, 2026 one of 99 trades the member reported that day House Stocks (including ADRs) owner: joint $15,001 - $50,000
  7. Gilbert Cisneros (D-CA31): Purchase Aug 18, 2026 reported Sep 10, 2026 one of 58 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  8. Gilbert Cisneros (D-CA31): Purchase Jun 5, 2026 reported Jul 2, 2026 one of 66 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  9. Gilbert Cisneros (D-CA31): Sale Jun 5, 2026 reported Jul 2, 2026 one of 66 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  10. John Boozman (R-AR): Sale (Partial) Jun 4, 2026 reported Jul 13, 2026 one of 10 trades the member reported that day Senate Stock owner: joint $1,001 - $15,000
  11. Gilbert Cisneros (D-CA31): Purchase May 29, 2026 reported Jun 8, 2026 one of 103 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  12. Gilbert Cisneros (D-CA31): Purchase May 19, 2026 reported Jun 8, 2026 one of 103 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  13. Gilbert Cisneros (D-CA31): Purchase May 11, 2026 reported Jun 8, 2026 one of 103 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  14. Alan Armstrong (R-OK): Purchase Mar 27, 2026 reported Jul 21, 2026 one of 703 trades the member reported that day Senate Stock $1,001 - $15,000
  15. Gilbert Cisneros (D-CA31): Purchase Feb 10, 2026 reported Mar 9, 2026 one of 85 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  16. Gilbert Cisneros (D-CA31): Purchase Jan 30, 2026 reported Feb 13, 2026 one of 151 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  17. Markwayne Mullin (R-OK): Purchase Dec 29, 2025 reported Jan 16, 2026 one of 31 trades the member reported that day Senate Stock $15,001 - $50,000
  18. Gilbert Cisneros (D-CA31): Sale Dec 24, 2025 reported Jan 12, 2026 one of 121 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  19. John Boozman (R-AR): Sale (Partial) Dec 17, 2025 reported Jan 13, 2026 one of 16 trades the member reported that day Senate Stock $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition filing Oct 28, 2026
  2. Departure or appointment of directors or officers; Other events filing Oct 7, 2026
  3. Departure or appointment of directors or officers filing Sep 23, 2026
  4. Material cybersecurity incident filing Sep 8, 2026
  5. Other events filing Aug 26, 2026
  6. Results of operations and financial condition filing Jul 29, 2026
  7. Costs associated with exit or disposal activities filing Jul 27, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.