Biogen Inc. (BIIB)

Sector:Health Care
Super Investor Stats:
Ownership count:3
Ownership rank:299
% of all portfolios:0.088%
Hold Price * :$183.34
History Portfolio Manager Activity Share change % change to portfolio ▼
Q1  2026
≡ Samantha McLemore - Patient Capital Management Reduce 34.11% 196,611 1.35
≡ Sarah Ketterer - Causeway Capital Management Reduce 46.12% 240,318 0.54
≡ Hillman Capital Management Reduce 3.20% 976 0.12
Q4  2025
≡ Samantha McLemore - Patient Capital Management Add 45.31% 179,703 1.22
≡ Hillman Capital Management Reduce 20.44% 7,838 0.87
≡ Sarah Ketterer - Causeway Capital Management Reduce 8.18% 46,417 0.11
Q3  2025
≡ Samantha McLemore - Patient Capital Management Add 23.77% 76,183 0.43
≡ Hillman Capital Management Reduce 8.62% 3,618 0.30
≡ Sarah Ketterer - Causeway Capital Management Add 15.03% 74,163 0.14
Q2  2025
≡ Samantha McLemore - Patient Capital Management Reduce 29.66% 135,139 0.77
≡ Hillman Capital Management Reduce 4.66% 2,053 0.14
≡ Sarah Ketterer - Causeway Capital Management Add 13.80% 59,838 0.12
Q1  2025
≡ Sarah Ketterer - Causeway Capital Management Add 53.89% 151,815 0.43
≡ Samantha McLemore - Patient Capital Management Add 10.06% 41,645 0.29
≡ Hillman Capital Management Add 2.23% 959 0.06
Q4  2024
≡ Samantha McLemore - Patient Capital Management Add 61.74% 158,018 1.11
≡ Sarah Ketterer - Causeway Capital Management Buy 281,702 1.00
≡ Hillman Capital Management Add 22.16% 7,813 0.44
Q3  2024
≡ Hillman Capital Management Reduce 1.95% 701 0.05
≡ Samantha McLemore - Patient Capital Management Reduce 0.52% 1,327 0.01
Q2  2024
≡ Samantha McLemore - Patient Capital Management Add 18.07% 39,382 0.49
≡ Hillman Capital Management Add 0.45% 162 0.01
Q1  2024
≡ Samantha McLemore - Patient Capital Management Buy 217,887 2.29
≡ Lee Ainslie - Maverick Capital Sell 100.00% 1,600 0.01
Q4  2023
≡ Lee Ainslie - Maverick Capital Buy 1,600 0.01
Q3  2023
≡ Lee Ainslie - Maverick Capital Sell 100.00% 983 0.01
Q2  2023
≡ Lee Ainslie - Maverick Capital Buy 983 0.01
Q4  2021
≡ Lee Ainslie - Maverick Capital Sell 100.00% 3,112 0.01
Q3  2021
≡ Bill Miller - Miller Value Partners Sell 100.00% 79,493 0.72
≡ Lee Ainslie - Maverick Capital Buy 3,112 0.01
Q2  2021
≡ Bill Miller - Miller Value Partners Buy 79,493 0.72
≡ Warren Buffett - Berkshire Hathaway Sell 100.00% 643,022 0.07
Q4  2020
≡ Lee Ainslie - Maverick Capital Sell 100.00% 1,436 0.01
Q3  2020
≡ First Eagle Investment Management Sell 100.00% 57,300 0.05
≡ Lee Ainslie - Maverick Capital Reduce 68.10% 3,065 0.02
Q2  2020
≡ First Eagle Investment Management Buy 57,300 0.05
≡ Lee Ainslie - Maverick Capital Buy 4,501 0.03
Q1  2020
≡ Warren Buffett - Berkshire Hathaway Reduce 0.84% 5,425 0.00
Q4  2019
≡ Warren Buffett - Berkshire Hathaway Buy 648,447 0.08
≡ Lee Ainslie - Maverick Capital Sell 100.00% 4,919 0.02
Q3  2019
≡ Lee Ainslie - Maverick Capital Buy 4,919 0.02
Q1  2019
≡ Michael Burry - Scion Asset Management Sell 100.00% 10,000 2.91
Q3  2017
≡ Lee Ainslie - Maverick Capital Sell 100.00% 15,230 0.05
Q2  2017
≡ Lee Ainslie - Maverick Capital Add 58.48% 5,620 0.02
Q1  2017
≡ Lee Ainslie - Maverick Capital Reduce 11.67% 1,270 0.00
Q4  2016
≡ Lee Ainslie - Maverick Capital Add 4.82% 500 0.00
Q3  2016
≡ Lee Ainslie - Maverick Capital Reduce 5.72% 630 0.00
Q2  2016
≡ Lee Ainslie - Maverick Capital Add 17.50% 1,640 0.01
Q1  2016
≡ Lee Ainslie - Maverick Capital Buy 9,370 0.04

* "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.