Boston Scientific Corp
BSX- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0000885725
In the last 90 days, Boston Scientific Corp insiders filed 5 open-market purchases and 0 sales; 1,485 institutions reported holding it in 13F filings for Q2 2026, worth $57.3B in total; Maverick Capital is the only superinvestor holding it.
Superinvestors holding BSX, Q2 2026
1 superinvestor reports holding Boston Scientific Corp on Form 13F, worth $253.4M in total. Weight is Boston Scientific Corp's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Maverick CapitalLee Ainslie | 2.3% | 5,937,553 | $253.4M | Added+41.5% |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of BSX each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+41.5%)
- Sold out
- Lone Pine Capital
Q1 2026
2 superinvestors holding at quarter end
- Added
- Maverick Capital (+42.5%)
- Reduced
- Lone Pine Capital (−48.1%)
- Sold out
- Viking Global Investors
Q4 2025
3 superinvestors holding at quarter end
- New
- Maverick Capital, Lone Pine Capital
- Reduced
- Viking Global Investors (−5.0%)
Q3 2025
1 superinvestor holding at quarter end
- Reduced
- Viking Global Investors (−13.3%)
Q2 2025
1 superinvestor holding at quarter end
- Added
- Viking Global Investors (+28.1%)
- Sold out
- Soros Fund Management
Q1 2025
2 superinvestors holding at quarter end
- Added
- Viking Global Investors (+9.4%)
Q4 2024
2 superinvestors holding at quarter end
- Added
- Viking Global Investors (+124.6%)
- Reduced
- Soros Fund Management (−71.4%)
Q3 2024
2 superinvestors holding at quarter end
- New
- Viking Global Investors
- Added
- Soros Fund Management (+40.0%)
- Sold out
- Greenwoods Asset Management
Q2 2024
2 superinvestors holding at quarter end
- New
- Soros Fund Management
- Reduced
- Greenwoods Asset Management (−57.4%)
- Sold out
- Viking Global Investors, Maverick Capital
Q1 2024
3 superinvestors holding at quarter end
- Added
- Greenwoods Asset Management (+102.8%)
- Reduced
- Viking Global Investors (−23.9%), Maverick Capital (−34.9%)
Q4 2023
3 superinvestors holding at quarter end
- New
- Maverick Capital
- Added
- Viking Global Investors (+104.2%)
Q3 2023
2 superinvestors holding at quarter end
Q2 2023
0 superinvestors holding at quarter end
- Sold out
- Viking Global Investors
Q1 2023
1 superinvestor holding at quarter end
- Reduced
- Viking Global Investors (−88.1%)
Q4 2022
1 superinvestor holding at quarter end
- Reduced
- Viking Global Investors (−41.0%)
- Sold out
- D1 Capital Partners
Q3 2022
2 superinvestors holding at quarter end
- New
- D1 Capital Partners
- Added
- Viking Global Investors (+10.3%)
Q2 2022
1 superinvestor holding at quarter end
- Added
- Viking Global Investors (+14.1%)
Q1 2022
1 superinvestor holding at quarter end
- Reduced
- Viking Global Investors (−32.3%)
Q4 2021
1 superinvestor holding at quarter end
- Added
- Viking Global Investors (+176.1%)
- Sold out
- Maverick Capital
Q3 2021
2 superinvestors holding at quarter end
- Reduced
- Viking Global Investors (−48.4%), Maverick Capital (−34.3%)
Q2 2021
2 superinvestors holding at quarter end
- Added
- Maverick Capital (+187.4%)
- Reduced
- Viking Global Investors (−25.6%)