Company Analysis

Boston Scientific Corp. (BSX)

NYSE: BSX · Surgical & Medical Instruments & Apparatus · Marlborough, MA · filing with the SEC since 1995
Grade6.2
◀ Past 5.6● Present 6.6▶ Future 6.3

Filings

368 filings since 2017 beside 1,393 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends. by Mar 1, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 28 days after the quarter ended. The proxy statement was last filed Mar 18, 2026.

Filings a yearinsider forms included
211198205178158185159102
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 14 times in the last 36 months, the newest Oct 7, 2026.Serious cyber incident (8-K item 1.05): 1 time in the last 36 months, the newest Sep 8, 2026.SEC letters: 2 in the last 36 months, the newest Mar 30, 2026.
Insider forms 1,393

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 6, 2026 SCHEDULE 13G/A Large holder update, amended
Nov 2, 2026 10-Q Quarterly report Sep 30, 2026
Oct 28, 2026 8-K items 2.02, 9.01 Results released · Current report
Oct 7, 2026 8-K items 5.02, 8.01, 9.01 Officer or director change; Other event · Current report Oct 1, 2026
Sep 23, 2026 8-K item 5.02 Officer or director change · Current report Sep 21, 2026
Sep 8, 2026 8-K item 1.05 Serious cyber incident · Current report Sep 7, 2026
Aug 26, 2026 8-K item 8.01 Other event · Current report
Aug 6, 2026 SCHEDULE 13G/A Large holder update, amended
Aug 3, 2026 10-Q Quarterly report Jun 30, 2026
Jul 29, 2026 8-K items 2.02, 9.01 Results released · Current report
Jul 27, 2026 8-K item 2.05 Exit or restructuring costs · Current report Jul 21, 2026
Jun 24, 2026 11-K Employee plan annual report Dec 31, 2025
May 21, 2026 SD Conflict minerals report
May 18, 2026 8-K items 8.01, 9.01 Other event · Current report
May 18, 2026 8-K items 8.01, 9.01 Other event · Current report
May 8, 2026 S-8 Employee stock plan registration
May 6, 2026 SCHEDULE 13G/A Large holder update, amended
May 5, 2026 8-K items 5.03, 5.07, 9.01 Charter, bylaw or fiscal-year change; Shareholder vote · Current report Apr 30, 2026
May 1, 2026 10-Q Quarterly report Mar 31, 2026
Apr 29, 2026 SCHEDULE 13G Large holder notice
Apr 22, 2026 425 Merger communication
Apr 22, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 1, 2026 EFFECT Registration effective
Apr 1, 2026 424B3 Shelf offering
Mar 30, 2026 CORRESP Reply to the SEC
Mar 30, 2026 S-4/A Merger or exchange registration, amended
Mar 30, 2026 8-K items 8.01, 9.01 Other event · Current report Mar 28, 2026
Mar 26, 2026 SCHEDULE 13G/A Large holder update, amended
Mar 18, 2026 ARS Annual report to shareholders Dec 31, 2025
Mar 18, 2026 DEFA14A Extra proxy material
Mar 18, 2026 DEF 14A Proxy statement
Mar 9, 2026 UPLOAD SEC comment letter
Mar 6, 2026 PRE 14A Preliminary proxy statement
Mar 3, 2026 425 Merger communication
Feb 27, 2026 S-4 Merger or exchange registration
Feb 26, 2026 8-K items 1.01, 1.02, 2.03, 9.01 Major agreement signed; Major agreement ended; New debt or obligation taken on · Current report
Feb 23, 2026 8-K items 5.02, 7.01, 8.01, 9.01 Officer or director change; Investor disclosure (Regulation FD); Other event · Current report Feb 18, 2026
Feb 17, 2026 10-K Annual report Dec 31, 2025
Feb 5, 2026 8-K item 5.02 Officer or director change · Current report Feb 2, 2026
Feb 4, 2026 425 Merger communication
40 of 368 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton BSX · research, not advice