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BSX — BOSTON SCIENTIFIC CORP

Reported value held$42.03B
Funds holding (latest)63
SectorHealth Care

Index member: S&P 500

Funds holding (Q2 2026)53
Institutional value$27.26B · 636.26M sh
New / Add / Cut / Exit3 / 25 / 22 / 3
Top-5 / Top-10 concentration42.4% / 58.4%
Institutional holdings change Accumulating +3.4% (+20.94M sh)
Institutional value change Down -28.4%

As of Q2 2026, 53 SEC-registered investment managers reported holding BSX (BOSTON SCIENTIFIC CORP) in their latest 13F filings, with a combined reported value of $27.26B across 636.26M shares. That is +3.4% by share count (+20.94M shares) versus the previous quarter, while reported value moved -28.4%. Ownership is concentrated: the five largest holders account for 42.4% of reported value and the top ten for 58.4%.

Compared with the prior quarter, 3 opened new positions, 25 added to existing stakes, 22 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

BSX is a constituent of the S&P 500 and is classified in the Health Care sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
Vanguard Group history Q4 2025 139.69M $13.32B 0.19% Add
BlackRock Inc history Q2 2026 129.68M $5.53B 0.09% Reduce
Fidelity Management & Research (FMR) history Q2 2026 45.70M $1.95B 0.09% Reduce
MFS Investment Management history Q2 2026 24.86M $1.50B 0.50% Add
Geode Capital Management history Q2 2026 33.44M $1.42B 0.08% Hold
D. E. Shaw & Co history Q2 2026 27.27M $1.16B 0.61% Add
Janus Henderson Group history Q1 2026 16.50M $1.04B 0.52% Add
Arrowstreet Capital history Q2 2026 23.29M $994.18M 0.44% Add
Norges Bank Investment Management history Q2 2026 21.17M $903.54M 0.09% Reduce
Two Sigma Investments history Q2 2026 19.42M $828.86M 0.64% Add
Goldman Sachs Group history Q2 2026 19.21M $819.79M 0.07% Reduce
Morgan Stanley history Q2 2026 18.95M $808.66M 0.04% Reduce
Capital World Investors history Q2 2026 16.81M $717.60M 0.09% Add
UBS Group AG history Q2 2026 16.67M $711.51M 0.10% Add
Wellington Management Group history Q2 2026 15.30M $653.08M 0.12% Reduce
Amundi US history Q2 2026 14.30M $610.16M 0.15% Add
Capital Research Global Investors history Q2 2026 14.18M $605.26M 0.09% Add
Franklin Resources history Q2 2026 13.98M $596.69M 0.14% Reduce
Invesco Ltd history Q2 2026 13.80M $589.02M 0.05% Add
Bank of America Corp history Q2 2026 13.03M $556.03M 0.04% Reduce

View all 63 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 129.66M 139.03M 141.67M 147.04M 145.18M 135.99M 131.82M 129.68M
Fidelity Management & Research (FMR) 107.60M 98.91M 93.12M 77.97M 82.13M 101.18M 113.76M 117.88M 125.92M 138.25M 141.93M 141.46M 135.20M 132.44M 128.60M 108.31M 99.48M 97.39M 74.23M 45.70M
MFS Investment Management 83.80M 85.53M — 83.61M 84.09M 81.98M 79.53M 69.14M 62.53M 57.18M 46.61M 31.79M 25.67M 19.66M 16.52M 12.86M 10.37M 9.09M 11.00M 24.86M
Geode Capital Management 21.98M 22.35M 23.06M 23.77M 24.31M 24.86M 25.33M 26.05M 27.00M 27.56M 28.45M 29.10M 29.58M 30.63M 31.80M 32.42M 32.69M 32.38M 33.29M 33.44M
D. E. Shaw & Co 337.95K 1.48M 584.22K 2.68M 1.82M 827.13K 471.75K 1.17M 1.14M 519.45K 1.40M 882.73K 1.82M 832.40K 3.96M 6.88M 8.94M 11.25M 24.43M 27.27M
Arrowstreet Capital 881.72K 3.27M 5.43M 7.54M 7.85M 8.48M 8.53M 8.89M 7.64M 6.05M 4.90M 4.81M 5.11M 5.59M 6.75M 6.53M 8.37M 11.04M 13.89M 23.29M
Norges Bank Investment Management — — — — — 13.67M — — — 16.10M — 17.88M — 19.73M — 19.46M — 23.07M — 21.17M
Two Sigma Investments 4.66M 4.10M 3.93M 379.00K 102.22K 1.58M 1.12M 2.45M 411.01K 99.66K 132.52K 1.85M 1.15M 741.85K 2.44M 2.47M 2.55M 2.48M 9.42M 19.42M
Goldman Sachs Group 16.38M 19.09M 17.94M 14.50M 19.50M 18.03M 17.87M 19.18M 17.10M 16.48M 15.07M 13.55M 13.46M 13.12M 14.14M 14.15M 15.59M 16.76M 19.37M 19.21M
Morgan Stanley 4.78M 4.87M 4.72M 10.87M 12.40M 19.25M 20.33M 20.72M 21.20M 18.76M 17.96M 18.93M 19.08M 20.48M 19.04M 20.26M 20.71M 22.96M 22.27M 18.95M
Capital World Investors — — — — — — — — 2.80M 9.42M 16.01M 20.40M 21.68M 27.90M 28.56M 28.52M 26.65M 27.15M 15.31M 16.81M
UBS Group AG 5.73M 6.24M 6.24M 6.67M 5.90M 6.56M 5.81M 6.12M 6.11M 7.65M 8.33M 7.74M 8.47M 10.09M 9.77M 11.95M 10.98M 15.60M 15.81M 16.67M
Wellington Management Group 83.83M 74.52M 68.34M 63.66M 62.54M 57.74M 46.50M 39.74M 42.08M 36.44M 33.29M 32.10M 32.82M 36.17M 33.20M 32.65M 14.65M 9.71M 18.83M 15.30M
Amundi US 7.78M 7.58M 9.39M 10.24M 15.41M 14.30M 13.97M 16.69M 14.80M 13.70M 11.09M 15.43M 12.56M 12.00M 12.31M 10.20M 11.98M 12.42M 14.12M 14.30M
Capital Research Global Investors — — — 1.16M — — — — — — 2.67M 3.29M 4.29M 4.30M 5.94M 6.61M 6.63M 7.08M 7.08M 14.18M
Franklin Resources 86.37K 91.87K 94.48K 93.31K 108.16K 114.13K 113.63K 1.47M 1.49M 1.52M 15.68M 17.16M 15.86M 16.54M 7.45M 7.58M 6.88M 5.68M 14.71M 13.98M
Invesco Ltd 7.18M 7.41M 6.78M 5.98M 5.48M 5.94M 9.18M 14.65M 14.86M 12.55M 12.60M 12.69M 13.90M 15.79M 16.62M 16.85M 16.96M 13.32M 9.05M 13.80M
Bank of America Corp 11.66M 10.23M 10.07M 11.28M 12.13M 13.04M 25.48M 27.43M 26.44M 29.74M 31.55M 29.15M 30.18M 29.33M 33.07M 34.70M 35.27M 25.12M 22.76M 13.03M
Northern Trust Corp 13.93M 13.82M 13.87M 13.93M 13.84M 13.88M 13.80M 13.36M 13.89M 13.74M 13.06M 12.90M 12.37M 14.60M 14.30M 14.27M 14.40M 13.94M 13.37M 12.96M
Fidelity International (FIL) 6.21M 7.00M 7.85M 7.93M 8.07M 8.82M 8.79M 7.20M 5.86M 5.94M 5.61M 7.40M 8.32M 7.90M 5.71M 4.88M 4.66M 4.76M 3.21M 12.33M

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