59 institutions reported holding $266.8M of Boston Scientific Corp (BSX) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($178.1M), Gradient Investments LLC ($20.0M), Czech National Bank ($18.1M), PensionDanmark Pensionsforsikringsaktieselskab ($13.7M), COMMUNITY TRUST & INVESTMENT CO ($8.9M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $178.1M | 4.2M | Trimmed |
| 2 | Gradient Investments LLC | $20.0M | 468,335 | Added |
| 3 | Czech National Bank | $18.1M | 423,074 | Added |
| 4 | PensionDanmark Pensionsforsikringsaktieselskab | $13.7M | 320,038 | New |
| 5 | COMMUNITY TRUST & INVESTMENT CO | $8.9M | 207,578 | Added |
| 6 | First National Bank of Mount Dora, Trust Investment Services | $6.0M | 140,595 | New |
| 7 | Hennion & Walsh Asset Management, Inc. | $4.0M | 93,021 | Trimmed |
| 8 | EASTERN BANK | $3.0M | 69,229 | Trimmed |
| 9 | BDF-GESTION | $2.8M | 51,301 | Trimmed |
| 10 | Legacy Wealth Management, LLC / MS | $1.8M | 42,748 | Trimmed |
| 11 | Eleva Capital SAS | $1.7M | 26,667 | Hold |
| 12 | GAMMA Investing LLC | $1.4M | 32,958 | Added |
| 13 | NEVILLE RODIE & SHAW INC | $767,000 | 17,970 | Trimmed |
| 14 | Trust Asset Management LLC | $657,926 | 16,666 | Added |
| 15 | TLWM | $657,313 | 15,401 | Trimmed |
| 16 | Affinity Capital Advisors, LLC | $487,032 | 10,920 | Added |
| 17 | CX Institutional | $487,000 | 11,407 | Added |
| 18 | Valeo Financial Advisors, LLC | $449,862 | 10,535 | Trimmed |
| 19 | CONGRESS ASSET MANAGEMENT CO | $437,346 | 10,247 | Trimmed |
| 20 | 180 WEALTH ADVISORS, LLC | $393,722 | 9,225 | Added |
| 21 | Miller Global Investments, LLC | $369,054 | 8,647 | New |
| 22 | Avior Wealth Management, LLC | $346,903 | 8,128 | Trimmed |
| 23 | Dynamic Advisor Solutions LLC | $331,453 | 7,766 | Trimmed |
| 24 | Thrive Wealth Management, LLC | $296,626 | 6,950 | Trimmed |
| 25 | Breakwater Capital Group | $296,071 | 6,937 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30