Ellen M Zane, a director at $BSX, sold 9,990 shares of the company on 10-27-2025 for an estimated $1,010,300. We received data on the trade from a recent SEC filing. This was a sale of approximately 27.0% of their shares of this class of stock. Following this trade, they now own 27,035 shares of this class of $BSX stock.
$BSX Insider Trading Activity
$BSX insiders have traded $BSX stock on the open market 20 times in the past 6 months. Of those trades, 0 have been purchases and 20 have been sales.
Here’s a breakdown of recent trading of $BSX stock by insiders over the last 6 months:
- MICHAEL F MAHONEY (Chairman, President & CEO) has made 0 purchases and 4 sales selling 328,886 shares for an estimated $33,903,109.
- JOSEPH MICHAEL FITZGERALD (EVP & Group Pres, Cardiology) has made 0 purchases and 7 sales selling 256,372 shares for an estimated $26,574,358.
- ARTHUR C BUTCHER (EVP& Grp Pres, MedSurg & APAC) has made 0 purchases and 2 sales selling 34,627 shares for an estimated $3,578,501.
- ELLEN M ZANE has made 0 purchases and 2 sales selling 12,891 shares for an estimated $1,306,899.
- EDWARD J LUDWIG has made 0 purchases and 2 sales selling 8,000 shares for an estimated $842,488.
- VANCE R BROWN (SVP, GC and Corp. Secretary) sold 4,826 shares for an estimated $513,582
- JOHN BRADLEY SORENSON (EVP, Global Operations) sold 4,572 shares for an estimated $477,956
- YOSHIAKI FUJIMORI sold 2,901 shares for an estimated $310,377
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$BSX Hedge Fund Activity
We have seen 888 institutional investors add shares of $BSX stock to their portfolio, and 657 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- FMR LLC removed 20,286,637 shares (-15.8%) from their portfolio in Q2 2025, for an estimated $2,178,987,680
- EDGEWOOD MANAGEMENT LLC added 6,951,450 shares (+inf%) to their portfolio in Q2 2025, for an estimated $746,655,244
- PARNASSUS INVESTMENTS, LLC added 6,868,459 shares (+42978.9%) to their portfolio in Q3 2025, for an estimated $670,567,652
- JPMORGAN CHASE & CO removed 5,862,792 shares (-18.6%) from their portfolio in Q2 2025, for an estimated $629,722,488
- BLACKROCK, INC. added 5,016,674 shares (+3.5%) to their portfolio in Q2 2025, for an estimated $538,840,954
- VOYA INVESTMENT MANAGEMENT LLC removed 4,362,310 shares (-49.9%) from their portfolio in Q3 2025, for an estimated $425,892,325
- MILLENNIUM MANAGEMENT LLC removed 3,708,137 shares (-44.4%) from their portfolio in Q2 2025, for an estimated $398,290,995
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
$BSX Congressional Stock Trading
Members of Congress have traded $BSX stock 7 times in the past 6 months. Of those trades, 0 have been purchases and 7 have been sales.
Here’s a breakdown of recent trading of $BSX stock by members of Congress over the last 6 months:
- REPRESENTATIVE VAL T. HOYLE sold up to $15,000 on 09/23.
- REPRESENTATIVE LISA C. MCCLAIN sold up to $15,000 on 08/04.
- REPRESENTATIVE GILBERT RAY CISNEROS, JR. has traded it 4 times. They made 0 purchases and 4 sales worth up to $60,000 on 07/31, 06/26, 06/11, 05/13.
- REPRESENTATIVE JEFFERSON SHREVE sold up to $50,000 on 05/12.
To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.
$BSX Analyst Ratings
Wall Street analysts have issued reports on $BSX in the last several months. We have seen 15 firms issue buy ratings on the stock, and 0 firms issue sell ratings.
Here are some recent analyst ratings:
- UBS issued a "Buy" rating on 10/23/2025
- Truist Securities issued a "Buy" rating on 10/23/2025
- BTIG issued a "Buy" rating on 10/22/2025
- Needham issued a "Buy" rating on 10/17/2025
- Evercore ISI Group issued a "Outperform" rating on 10/07/2025
- Leerink Partners issued a "Outperform" rating on 10/01/2025
- Canaccord Genuity issued a "Buy" rating on 10/01/2025
To track analyst ratings and price targets for $BSX, check out Quiver Quantitative's $BSX forecast page.
$BSX Price Targets
Multiple analysts have issued price targets for $BSX recently. We have seen 15 analysts offer price targets for $BSX in the last 6 months, with a median target of $128.0.
Here are some recent targets:
- Danielle Antalffy from UBS set a target price of $140.0 on 10/23/2025
- Richard Newitter from Truist Securities set a target price of $130.0 on 10/23/2025
- William Plovanic from Canaccord Genuity set a target price of $132.0 on 10/23/2025
- Patrick Wood from Morgan Stanley set a target price of $130.0 on 10/23/2025
- Larry Biegelsen from Wells Fargo set a target price of $125.0 on 10/23/2025
- Marie Thibault from BTIG set a target price of $132.0 on 10/22/2025
- Mike Matson from Needham set a target price of $121.0 on 10/17/2025
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
