Filing Flows › Boston Scientific (BSX) › Who owns the stock
Who owns Boston Scientific (BSX) stock
1,449 funds reported Boston Scientific (BSX) shares in their latest 13F filings, worth $69.4B in all. The largest holder is Vanguard Group ($13.3B). Last quarter 661 funds added to their stakes and 840 cut them. Members of Congress and other officials disclosed 19 trades (10 buys, 9 sales).
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Vanguard Group | 139,685,997 | $13.3B | increase | 2025-12-31 |
| BlackRock | 129,680,916 | $5.5B | decrease | 2026-06-30 |
| Vanguard Capital Management LLC | 97,087,553 | $4.1B | increase | 2026-06-30 |
| State Street | 70,111,196 | $3.0B | increase | 2026-06-30 |
| Primecap Management | 50,520,914 | $2.2B | increase | 2026-06-30 |
| FMR LLC | 45,702,845 | $2.0B | decrease | 2026-06-30 |
| Massachusetts Financial Services | 24,859,191 | $1.5B | increase | 2026-06-30 |
| Geode Capital Management, LLC | 33,440,102 | $1.4B | increase | 2026-06-30 |
| Vanguard Portfolio Management LLC | 29,792,794 | $1.3B | decrease | 2026-06-30 |
| D. E. Shaw | 25,457,409 | $1.1B | increase | 2026-06-30 |
| Janus Henderson Group | 16,497,366 | $1.0B | increase | 2026-03-31 |
| Arrowstreet Capital, Limited Partnership | 23,293,913 | $994M | increase | 2026-06-30 |
| Two Sigma Investments, LP | 19,359,023 | $826M | increase | 2026-06-30 |
| Morgan Stanley | 18,947,147 | $809M | decrease | 2026-06-30 |
| Jupiter Topco LLC | 18,822,853 | $803M | base | 2026-06-30 |
Trades by Congress and other officials
| Date | Who | Trade | Amount |
|---|---|---|---|
| 2026-09-09 | Kevin Hern | sale | $50K–$100K |
| 2026-09-04 | Kevin Hern | partial sale | $50K–$100K |
| 2026-09-03 | Kevin Hern | sale | $1K–$15K |
| 2026-08-31 | Kevin Hern | sale | $15K–$50K |
| 2026-08-18 | Gilbert Cisneros | purchase | $1K–$15K |
| 2026-06-05 | Gilbert Cisneros | purchase | $1K–$15K |
| 2026-06-05 | Gilbert Cisneros | partial sale | $1K–$15K |
| 2026-06-04 | John Boozman | partial sale | $1K–$15K |
| 2026-05-29 | Gilbert Cisneros | purchase | $1K–$15K |
| 2026-05-19 | Gilbert Cisneros | purchase | $1K–$15K |
Boston Scientific's latest quarter
Boston Scientific, Q3 2026: revenue $5.1B (+1% year over year), operating margin 16.1%, net earnings $580M, operating cash flow $1.0B. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most BSX stock?
By the latest 13F filings: Vanguard Group ($13.3B); BlackRock ($5.5B); Vanguard Capital Management LLC ($4.1B); State Street ($3.0B); Primecap Management ($2.2B).
Has Congress traded BSX stock?
Officials disclosed 19 trades on file: 10 buys and 9 sales. The latest: Kevin Hern, sale on 2026-09-09.
What is the short interest in BSX?
40,708,019 shares were sold short at the 2026-10-15 settlement, -1.7% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.