BOSTON SCIENTIFIC CORP (BSX) — real insider trading activity disclosed to the SEC, tracked automatically as new Form 4 filings are reported. Most recent: Mahoney Michael F disclosed a transaction on 2026-08-03 worth $9,001,408.
Transactions disclosed by company insiders to the SEC on Form 4, most recent first.
| Insider | Role | Date | Shares | Value |
|---|---|---|---|---|
| Woodworth Emily | SVP, Global Controller and CAO | 2026-08-11 | 2,930 | $149,987 |
| Monson Jonathan | EVP and CFO | 2026-08-10 | 9,908 | $499,958 |
| Habiger David C | Director | 2026-08-05 | 2,100 | $99,937 |
| Habiger David C | Director | 2026-08-04 | 140 | $6,802 |
| Mahoney Michael F | Chairman, President & CEO | 2026-08-03 | 186,240 | $9,001,408 |
| Mahoney Michael F | Chairman, President & CEO | 2026-08-03 | 22,119 | $1,071,223 |
| Habiger David C | Director | 2026-08-03 | 1,042 | $50,084 |
| Fitzgerald Joseph Michael | EVP & Group Pres, Cardiology | 2026-07-31 | 64,198 | $2,999,973 |
| LUDWIG EDWARD J | Director | 2026-07-31 | 5,000 | $227,400 |
Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.
| Fund | Change | Quarter |
|---|---|---|
| JUPITER ASSET MANAGEMENT LTD | JUPITER ASSET MANAGEMENT LTD opened a new position worth $36,644,831. | 2026-06-30 |
| NORGES BANK | NORGES BANK opened a new position worth $903,536,838. | 2026-06-30 |
| JPMORGAN CHASE & CO | JPMORGAN CHASE & CO opened a new position worth $736,612. | 2026-06-30 |
| 1832 Asset Management L.P. | 1832 Asset Management L.P. opened a new position worth $448,140,000. | 2026-06-30 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | DEERFIELD MANAGEMENT COMPANY, L.P. opened a new position worth $56,124,200. | 2026-06-30 |
| CAUSEWAY CAPITAL MANAGEMENT LLC | CAUSEWAY CAPITAL MANAGEMENT LLC opened a new position worth $30,744,061. | 2026-06-30 |
| Capital Research Global Investors | Capital Research Global Investors increased this position by 36% ($444,327,432 -> $605,255,716). | 2026-06-30 |
| BANK OF NOVA SCOTIA | BANK OF NOVA SCOTIA increased this position by 306% ($13,825,203 -> $56,119,932). | 2026-06-30 |
Largest reported positions as of 2026-06-30.
| Fund | Value | Shares |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | $4,143,696,762 | 97,087,553 |
| PRIMECAP MANAGEMENT CO/CA/ | $2,156,232,608 | 50,520,914 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1,271,556,448 | 29,792,794 |
| FMR LLC | $1,239,549,312 | 29,042,861 |
| GEODE CAPITAL MANAGEMENT, LLC | $1,212,072,881 | 28,557,132 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $994,184,207 | 23,293,913 |
| NORGES BANK | $903,536,838 | 21,170,029 |
| TWO SIGMA INVESTMENTS, LP | $826,243,102 | 19,359,023 |
| Jupiter Topco LLC | $769,955,057 | 18,040,204 |
| Capital World Investors | $717,600,310 | 16,812,257 |
Data compiled from public SEC filings. This is informational reporting, not investment advice.
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