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BSX · Boston Scientific Corp

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$49.01 -1.36 (-2.70%) At close · Aug 24
Market Cap
$73.00B
Shares
1.45B

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 1,476
Total Value: $59,042,370,726
Total Shares: 1,385,329,795

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 1,476 13F filers · Δ vs Mar 31, 2026
Top Holder
9.4%
Sep 2023 → Jun 2026 · range 9.4% – 12.1%
−0.2 pts
Top 5
28.4%
Sep 2023 → Jun 2026 · range 28.4% – 39.4%
−1.0 pts
Top 10
39.2%
Sep 2023 → Jun 2026 · range 39.2% – 52.0%
−0.7 pts
HHI
251
Sep 2023 → Jun 2026 · range 251 – 419
Broadly held−6

Quarterly Activity

vs Mar 31, 2026
New
149
Increased
587
Decreased
613
Sold Out
355
Unchanged
127
Holder count: -206
Institutional value: -31.4%
Shares held: +1.0%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 1,560
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 885725 CUSIP 101137107 13F (30d) 1223 filings 1148 filers Visit website Investor relations