Boston Scientific (BSX)

Sector:Health Care
Super Investor Stats:
Ownership count:5
Ownership rank:157
% of all portfolios:0.043%
Hold Price * :$62.75
History Portfolio Manager Activity Share change % change to portfolio ▼
Q1  2026
≡ John Armitage - Egerton Capital Sell 100.00% 5,385,084 5.58
≡ Polen Capital Management Reduce 85.58% 3,439,813 1.48
≡ Lee Ainslie - Maverick Capital Add 42.48% 1,250,835 0.91
≡ Viking Global Investors Sell 100.00% 2,509,808 0.64
≡ Stephen Mandel - Lone Pine Capital Reduce 48.11% 97,048 0.05
Q4  2025
≡ Lee Ainslie - Maverick Capital Buy 2,944,254 3.02
≡ Polen Capital Management Reduce 28.20% 1,578,734 0.64
≡ Stephen Mandel - Lone Pine Capital Buy 201,703 0.14
≡ John Armitage - Egerton Capital Add 1.37% 72,580 0.08
≡ Viking Global Investors Reduce 4.99% 131,874 0.03
≡ Mairs & Power Funds Reduce 1.27% 131 0.00
Q3  2025
≡ John Armitage - Egerton Capital Add 223.74% 3,671,548 3.78
≡ Polen Capital Management Buy 5,598,286 1.77
≡ Viking Global Investors Reduce 13.27% 404,082 0.10
≡ Mairs & Power Funds Reduce 0.98% 102 0.00
≡ Dodge & Cox Funds Reduce 1.66% 1,500 0.00
Q2  2025
≡ John Armitage - Egerton Capital Buy 1,640,956 1.81
≡ Viking Global Investors Add 28.15% 669,000 0.21
≡ Mairs & Power Funds Add 0.95% 98 0.00
≡ Dodge & Cox Funds Reduce 1.43% 1,310 0.00
Q1  2025
≡ Viking Global Investors Add 9.42% 204,556 0.07
≡ Dodge & Cox Funds Reduce 3.27% 3,100 0.00
Q4  2024
≡ Viking Global Investors Add 124.58% 1,204,998 0.35
≡ Dodge & Cox Funds Reduce 0.52% 500 0.00
Q3  2024
≡ Viking Global Investors Buy 967,210 0.30
≡ Mairs & Power Funds Add 0.41% 42 0.00
≡ Dodge & Cox Funds Reduce 1.85% 1,800 0.00
Q2  2024
≡ Viking Global Investors Sell 100.00% 1,724,755 0.44
≡ Lee Ainslie - Maverick Capital Sell 100.00% 5,748 0.01
≡ Mairs & Power Funds Reduce 1.91% 200 0.00
Q1  2024
≡ Viking Global Investors Reduce 23.94% 543,006 0.14
≡ Lee Ainslie - Maverick Capital Reduce 34.91% 3,083 0.01
Q4  2023
≡ Viking Global Investors Add 104.25% 1,157,469 0.24
≡ Lee Ainslie - Maverick Capital Buy 8,831 0.01
Q3  2023
≡ Viking Global Investors Buy 1,110,292 0.24
Q2  2023
≡ Viking Global Investors Sell 100.00% 1,136,881 0.27
Q1  2023
≡ Viking Global Investors Reduce 88.07% 8,391,712 1.99
Q4  2022
≡ Viking Global Investors Reduce 41.05% 6,634,328 1.55
Q3  2022
≡ Viking Global Investors Add 10.30% 1,508,967 0.27
Q2  2022
≡ Viking Global Investors Add 14.13% 1,814,812 0.31
Q1  2022
≡ Viking Global Investors Reduce 32.29% 6,122,359 1.10
Q4  2021
≡ Viking Global Investors Add 176.15% 12,095,096 1.49
≡ Lee Ainslie - Maverick Capital Sell 100.00% 62,528 0.03
Q3  2021
≡ Viking Global Investors Reduce 48.43% 6,449,411 0.78
≡ Lee Ainslie - Maverick Capital Reduce 34.32% 32,668 0.02
Q2  2021
≡ Viking Global Investors Reduce 25.59% 4,580,286 0.60
≡ Lee Ainslie - Maverick Capital Add 187.38% 62,070 0.03
Q1  2021
≡ Viking Global Investors Reduce 40.33% 12,094,790 1.39
≡ Lee Ainslie - Maverick Capital Reduce 52.70% 36,915 0.01
Q4  2020
≡ Viking Global Investors Add 59.27% 11,161,162 1.10
≡ David Tepper - Appaloosa Management Sell 100.00% 787,500 0.53
≡ Lee Ainslie - Maverick Capital Add 8.94% 5,745 0.00
Q3  2020
≡ David Tepper - Appaloosa Management Reduce 17.11% 162,500 0.11
≡ Viking Global Investors Add 2.02% 372,457 0.05
≡ Lee Ainslie - Maverick Capital Buy 64,296 0.05
Q2  2020
≡ Viking Global Investors Reduce 41.99% 13,358,924 2.03
≡ David Tepper - Appaloosa Management Add 726.09% 835,000 0.51
Q1  2020
≡ Daniel Loeb - Third Point Sell 100.00% 5,000,000 2.60
≡ Viking Global Investors Add 72.06% 13,324,535 2.26
≡ David Tepper - Appaloosa Management Buy 115,000 0.11
Q4  2019
≡ Viking Global Investors Add 77.53% 8,075,615 1.71
Q3  2019
≡ Viking Global Investors Add 13.28% 1,220,855 0.26
≡ Daniel Loeb - Third Point Reduce 9.09% 500,000 0.24
Q2  2019
≡ Viking Global Investors Add 185.53% 5,974,823 1.16
≡ Daniel Loeb - Third Point Add 10.00% 500,000 0.25
Q1  2019
≡ Daniel Loeb - Third Point Buy 5,000,000 2.15
≡ Lee Ainslie - Maverick Capital Sell 100.00% 77,730 0.04
Q4  2018
≡ David Tepper - Appaloosa Management Sell 100.00% 853,875 0.59
≡ Lee Ainslie - Maverick Capital Buy 77,730 0.04
Q3  2018
≡ David Tepper - Appaloosa Management Reduce 66.23% 1,674,263 1.16
Q2  2018
≡ David Tepper - Appaloosa Management Reduce 35.35% 1,382,600 0.53
≡ Lee Ainslie - Maverick Capital Sell 100.00% 71,740 0.03
Q1  2018
≡ David Tepper - Appaloosa Management Reduce 18.23% 871,945 0.26
≡ Lee Ainslie - Maverick Capital Buy 71,740 0.03
Q4  2017
≡ David Tepper - Appaloosa Management Add 27.44% 1,029,817 0.29
Q3  2017
≡ David Tepper - Appaloosa Management Add 65.70% 1,487,966 0.65
Q2  2017
≡ David Tepper - Appaloosa Management Reduce 32.19% 1,075,100 0.47
Q1  2017
≡ David Tepper - Appaloosa Management Add 507.27% 2,790,000 1.22
Q4  2016
≡ David Tepper - Appaloosa Management Buy 550,000 0.22
Q3  2014
≡ Leon Cooperman Sell 100.00% 6,549,479 1.10
Q2  2014
≡ Leon Cooperman Reduce 23.25% 1,983,620 0.33
Q4  2013
≡ Leon Cooperman Reduce 36.64% 4,934,317 0.84
Q3  2013
≡ Leon Cooperman Reduce 18.19% 2,994,684 0.53
Q2  2013
≡ Leon Cooperman Reduce 0.07% 11,200 0.00
≡ Thomas Russo - Gardner Russo & Quinn Sell 100.00% 209 0.00
Q1  2013
≡ Thomas Russo - Gardner Russo & Quinn Buy 209 0.00
Q1  2012
≡ David Tepper - Appaloosa Management Sell 100.00% 7,797,503 7.06
Q4  2011
≡ David Tepper - Appaloosa Management Buy 7,797,503 7.06
Q1  2010
≡ David Einhorn - Greenlight Capital Sell 100.00% 32,668,000 10.54
≡ Harry Burn - Sound Shore Sell 100.00% 4,841,800 2.19
≡ Robert Olstein - Olstein Capital Management Sell 100.00% 1,161,000 1.78
Q4  2009
≡ David Einhorn - Greenlight Capital Buy 32,668,000 10.54
≡ Harry Burn - Sound Shore Add 29.63% 1,106,700 0.50
≡ Robert Olstein - Olstein Capital Management Add 27.44% 250,000 0.38
Q3  2009
≡ Harry Burn - Sound Shore Reduce 33.81% 1,907,700 1.02
≡ Robert Olstein - Olstein Capital Management Reduce 2.38% 22,231 0.04
Q2  2009
≡ Robert Olstein - Olstein Capital Management Reduce 18.26% 208,500 0.41
≡ Harry Burn - Sound Shore Add 4.66% 251,100 0.15
Q1  2009
≡ Harry Burn - Sound Shore Reduce 31.52% 2,481,200 1.39
≡ Robert Olstein - Olstein Capital Management Reduce 35.55% 629,886 1.14

* "Hold Price" is the last known price at which an investor still held a security. It is the closing price of the security as of the portfolio date (quarter end). This value is only provided when a security is owned by at least two investors. In the case of reporting dates being different, a weighted average price is calculated.