By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
BSX insiders were on both sides of the trade this year. Buys came to roughly $10 million (five buyers), sales to $24.3 million (four sellers).
Biggest single buyer: Mahoney Michael F, CEO, with roughly $9 million. C-suite participation is part of the picture here.
Members of Congress reported 40 trades in BSX over the past two years (nine members). On the institutional side, 1,472 funds reported holding BSX at the end of Q2 2026, and more funds sold than bought. Zooming out by quarter: 2 quarters in a row of net buying by insiders. Insiders bought in 2 of the last 7 full quarters.
Are insiders buying or selling BSX stock?
In the last 12 months Boston Scientific Corp insiders made open-market purchases worth about $10 million and sales worth about $24.3 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in BSX?
The most recent open-market insider trade in BSX was filed on 2026-08-26.
How many institutions own BSX?
1,472 investment managers reported holding BSX in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded BSX?
Yes. Members of Congress reported 40 trades in BSX over the past two years. The full list is free on CapitalSnitch.
Free weekly email: the week's biggest insider buys and Congress trades, every Monday. No spam, one-click unsubscribe.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).