BSXBoston Scientific

$42.75-56% 1Y

Who owns BSX

1,441 institutions reported holding BSX for 2026Q2, together 89% of the company, fewer than the 1,635 a quarter earlier.

1,441

Institutions reporting a position · as of 2026Q2 · down from 1,635 the quarter before

Shares held by institutions
1.33B

Shares held by institutions · 89% of the company · long US equity positions only, as reported on Form 13F

Reported value
$60.1B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
29%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
151
Positions exited
344
Added to
549
Reduced
575
Top 10 holdersof the company
38%
Shares sold shortsettled Sep 15, 2026
46.5M
Short interestof shares outstanding
3.1%
Days to coverat the average daily volume
2.4
Change in the short positionsince the Aug 31, 2026 count
−3.5%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q21,4411.33B$60.1B
2026Q11,6351.34B$83.9B
2025Q41,7531.36B$129.7B
2025Q31,6841.34B$130.7B
2025Q21,6521.35B$144.9B
2025Q11,6101.34B$134.8B
2024Q41,4821.34B$119.5B
2024Q31,3821.32B$110.8B
2024Q21,3051.32B$101.9B
2024Q11,2071.32B$90.7B
2023Q41,1371.33B$77.1B
2023Q31,0441.33B$70.4B
2023Q21,0521.32B$71.5B
2023Q19841.31B$65.6B
2022Q49201.31B$60.5B
2022Q38601.31B$50.9B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC142.4M9.5%$6.08B
BlackRock Inc.129.7M8.7%$5.53B
STATE STREET CORP70.1M4.7%$2.99B
PRIMECAP MANAGEMENT CO/CA/50.5M3.4%$2.16B
FMR LLC45.7M3.1%$1.95B
GEODE CAPITAL MANAGEMENT LLC33.4M2.2%$1.42B
D. E. Shaw & Co., INC.25.5M1.7%$1.09B
MASSACHUSETTS FINANCIAL SERVICES CO /MA/24.9M1.7%$1.06B
JPMORGAN CHASE & CO23.9M1.6%$1.04B
ARROWSTREET CAPITAL LIMITED PARTNERSHIP23.3M1.6%$994M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202646.5M3.1%2.4
Aug 31, 202648.2M3.2%2.3
Aug 14, 202627.6M1.8%1.6
Jul 31, 202622.3M1.5%1.0
Jul 15, 202628.3M1.9%1.7
Jun 30, 202627.9M1.9%1.2
Jun 15, 202629.8M2.0%1.4
May 29, 202657.5M3.8%2.3
May 15, 202631.4M2.1%1.8
Apr 30, 202628.6M1.9%1.4
Apr 15, 202625.6M1.7%1.8
Mar 31, 202623.5M1.6%1.4

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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