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BOSTON SCIENTIFIC CORP

BSX

Holders

2

Combined Value

$204.36M

Combined Shares

3,256,660

Current Price

$46.91

52W High

$109.50

vs 52W High

−57.2%

Investor Activity Chart

Quarterly buys (▲) and sells (▼) by tracked investors. Click a marker to view that investor's portfolio; hover for details. Price line is implied from 13F filings (value ÷ shares), not market data.

$53.82$74.66$95.50$116.34Q2'24Q3'24Q4'24Q1'25Q2'25Q3'25Q4'25Q1'26Q2 2024 · implied price $77.01Q3 2024 · implied price $83.80Q4 2024 · implied price $89.32Q1 2025 · implied price $100.88Q2 2025 · implied price $107.41Q3 2025 · implied price $97.63Q4 2025 · implied price $95.35Q1 2026 · implied price $62.75George Soros - Soros Fund Management · bought 250,001 shares @ ~$77.01 · Q2 2024 (new position)Andreas Halvorsen - Viking Global Investors · bought 967,210 shares @ ~$83.80 · Q3 2024 (new position)Jim Simons - Renaissance Technologies · bought 258,025 shares @ ~$83.80 · Q3 2024 (new position)George Soros - Soros Fund Management · bought 100,000 shares @ ~$83.80 · Q3 2024Andreas Halvorsen - Viking Global Investors · bought 1,204,998 shares @ ~$89.32 · Q4 2024Jim Simons - Renaissance Technologies · sold 258,025 shares @ ~$83.80 · Q4 2024 (sold out)George Soros - Soros Fund Management · sold 250,001 shares @ ~$89.32 · Q4 2024Jim Simons - Renaissance Technologies · bought 844,988 shares @ ~$107.41 · Q2 2025Andreas Halvorsen - Viking Global Investors · bought 669,000 shares @ ~$107.41 · Q2 2025George Soros - Soros Fund Management · sold 100,000 shares @ ~$100.88 · Q2 2025 (sold out)Jim Simons - Renaissance Technologies · bought 651,553 shares @ ~$100.88 · Q1 2025 (new position)Andreas Halvorsen - Viking Global Investors · bought 204,556 shares @ ~$100.88 · Q1 2025Jim Simons - Renaissance Technologies · sold 579,436 shares @ ~$97.63 · Q3 2025Andreas Halvorsen - Viking Global Investors · sold 404,082 shares @ ~$97.63 · Q3 2025Jim Simons - Renaissance Technologies · bought 1,465,600 shares @ ~$95.35 · Q4 2025Stephen Mandel - Lone Pine Capital · bought 201,703 shares @ ~$95.35 · Q4 2025 (new position)Andreas Halvorsen - Viking Global Investors · sold 131,874 shares @ ~$95.35 · Q4 2025Jim Simons - Renaissance Technologies · bought 769,300 shares @ ~$62.75 · Q1 2026Andreas Halvorsen - Viking Global Investors · sold 2,509,808 shares @ ~$95.35 · Q1 2026 (sold out)Stephen Mandel - Lone Pine Capital · sold 97,048 shares @ ~$62.75 · Q1 2026BUYSELLIMPLIED PRICE

Held By

Tracked investors currently holding this security, based on each investor's most recent 13F filing. Gain compares the current market price to each investor's estimated average buy price.

InvestorValue% of PortfolioAvg Buy PriceGainLast ActivityAs of
Jim Simons - Renaissance Technologies$197.79M0.31%~$90.08−47.9%BUY Q1 2026Q1 2026
Stephen Mandel - Lone Pine Capital$6.57M0.05%~$95.35−50.8%SELL Q1 2026Q1 2026

Recent Activity

Latest position changes by tracked investors. Prices are estimates implied from 13F filings.

QuarterInvestorActionEst. ValueEst. Price
Q1 2026Andreas Halvorsen - Viking Global InvestorsSOLD OUT−$239.31M~$95.35
Q1 2026Jim Simons - Renaissance TechnologiesBUY+$48.27M~$62.75
Q1 2026Stephen Mandel - Lone Pine CapitalSELL−$6.09M~$62.75
Q4 2025Jim Simons - Renaissance TechnologiesBUY+$139.74M~$95.35
Q4 2025Stephen Mandel - Lone Pine CapitalNEW BUY+$19.23M~$95.35
Q4 2025Andreas Halvorsen - Viking Global InvestorsSELL−$12.57M~$95.35
Q3 2025Jim Simons - Renaissance TechnologiesSELL−$56.57M~$97.63
Q3 2025Andreas Halvorsen - Viking Global InvestorsSELL−$39.45M~$97.63
Q2 2025Jim Simons - Renaissance TechnologiesBUY+$90.76M~$107.41
Q2 2025Andreas Halvorsen - Viking Global InvestorsBUY+$71.86M~$107.41
Q2 2025George Soros - Soros Fund ManagementSOLD OUT−$10.09M~$100.88
Q1 2025Jim Simons - Renaissance TechnologiesNEW BUY+$65.73M~$100.88
Q1 2025Andreas Halvorsen - Viking Global InvestorsBUY+$20.64M~$100.88
Q4 2024Andreas Halvorsen - Viking Global InvestorsBUY+$107.63M~$89.32
Q4 2024Jim Simons - Renaissance TechnologiesSOLD OUT−$21.62M~$83.80
Q4 2024George Soros - Soros Fund ManagementSELL−$22.33M~$89.32
Q3 2024Andreas Halvorsen - Viking Global InvestorsNEW BUY+$81.05M~$83.80
Q3 2024Jim Simons - Renaissance TechnologiesNEW BUY+$21.62M~$83.80
Q3 2024George Soros - Soros Fund ManagementBUY+$8.38M~$83.80
Q2 2024George Soros - Soros Fund ManagementNEW BUY+$19.25M~$77.01

Ownership History

Aggregate position across all tracked investors per quarter (options excluded). Implied price is the reported value divided by shares held.

PeriodHoldersTotal SharesΔ SharesTotal ValueImplied Price
Q1 202623,256,660-36.1%$204.36M$62.75
Q4 202535,094,216+43.1%$485.73M$95.35
Q3 202523,558,787-21.7%$347.44M$97.63
Q2 202524,542,305+45.2%$487.89M$107.41
Q1 202533,128,317+37.7%$315.58M$100.88
Q4 202422,272,208+44.2%$202.95M$89.32
Q3 202431,575,236+530.1%$132.00M$83.80
Q2 20241250,001—$19.25M$77.01