Institutional investors holding BSX
| Investor | Weight | Quarter |
|---|---|---|
| David Einhorn | 9.79% | 2009Q4 |
| John Armitage | 5.58% | 2025Q4 |
| David Tepper | 5.44% | 2011Q4 |
| Lee Ainslie | 3.76% | 2026Q1 |
| David Katz | 2.37% | 2007Q2 |
| Bill Miller | 1.57% | 2012Q2 |
| Viking Global Investors | 0.64% | 2025Q4 |
| Polen Capital Management | 0.25% | 2026Q1 |
| William Von Mueffling | 0.14% | 2005Q4 |
| Stephen Mandel | 0.05% | 2026Q1 |
| Kenneth Fisher | 0.01% | 2026Q1 |
| Mairs & Power | 0.01% | 2026Q1 |
| Meridian / ArrowMark | 0.01% | 2014Q1 |
| Bill Nygren | 0.00% | 2012Q4 |
| Dodge & Cox | 0.00% | 2026Q1 |
Congressional data coming soon
23
Total trades
$963K
Volume
18
Buys
3
Sells
Last trade: May 20, 2026
No insider trades in the last 90 days.
Congressional trade data is being sourced and will appear here shortly.