BIIB Stock Ownership Activity

BIOGEN INC 13F holders

No value investing guru has made any change to the BIOGEN INC (BIIB) position according to the gurus' latest SEC quarterly report(s).

Which gurus or hedge funds are buying BIIB now?

According to the latest SEC filing(s) BIOGEN INC (BIIB) has not been purchased by any super investor.

To see more about who is investing in BIOGEN INC (BIIB), please go to the BIIB ownership page.

2023 Q3 (2 results)
Mark A. Hillman
+32.86%
+6,000
+0.74%
2.98%
Parnassus Investments
+17.96%
+54,934
+0.31%
2.04%
Current price: $221.48 13.82% AVG reported price*: $257.01
2022 Q4 (1 result)
Parnassus Investments
-12.06%
-41,943
-0.25%
1.84%
Current price: $221.48 20.02% Reported price*: $276.92
2022 Q3 (2 results)
Parnassus Investments
-23.07%
-104,302
-0.67%
2.24%
Mark A. Hillman
-37.25%
-10,839
-1.61%
2.71%
Current price: $221.48 17.05% AVG reported price*: $267.00
2022 Q2 (1 result)
Mason Hawkins
-100.00%
-337,077
-5.07%
0.00%
Current price: $221.48 5.17% Reported price*: $210.60
2022 Q1 (1 result)
Mark A. Hillman
+59.89%
+10,900
+0.93%
2.49%
Current price: $221.48 5.17% Reported price*: $210.60
2021 Q4 (2 results)
Mason Hawkins
buy
+337,077
+4.86%
4.86%
Parnassus Investments
-99.63%
-122,615,562
-543.31%
2.00%
Current price: $221.48 7.69% AVG reported price*: $239.92
2021 Q3 (2 results)
Bill Miller
-100.00%
-79,493
-0.94%
0.00%
Ronald Muhlenkamp
-100.00%
-18,218
-2.42%
0.00%
Current price: $221.48 36.04% AVG reported price*: $346.26
2021 Q2 (5 results)
Bill Miller
buy
+79,493
+0.72%
0.00%
Parnassus Investments
+45.53%
+38,503,787
+0.99%
3.15%
Ronald Muhlenkamp
+0.19%
+34
+0.00%
0.00%
Warren Buffett
-100.00%
-643,022
-0.06%
0.00%
Mason Hawkins
-100.00%
-249,422
-4.67%
0.00%
Current price: $221.48 4.23% AVG reported price*: $231.26
2021 Q1 (4 results)
Mason Hawkins
buy
+249,422
+4.59%
0.00%
Parnassus Investments
buy
+84,563,828
+2.15%
2.15%
Mark A. Hillman
+37.88%
+5,000
+0.81%
2.95%
Ronald Muhlenkamp
+0.20%
+37
+0.00%
2.35%
Current price: $221.48 2.68% AVG reported price*: $227.59
2020 Q4 (1 result)
Ronald Muhlenkamp
+0.52%
+94
+0.01%
1.79%
Current price: $221.48 9.54% Reported price*: $244.83
2020 Q3 (2 results)
Mark A. Hillman
+32.00%
+3,200
+0.87%
3.60%
Ronald Muhlenkamp
+1.25%
+222
+0.03%
2.65%
Current price: $221.48 21.92% AVG reported price*: $283.67
2020 Q2 (2 results)
Ronald Muhlenkamp
+0.35%
+63
+0.01%
2.55%
Ravenel Boykin Curry IV
-100.00%
-2,600
-0.00%
0.00%
Current price: $221.48 17.22% AVG reported price*: $267.57
2020 Q1 (3 results)
Ravenel Boykin Curry IV
buy
+2,600
+0.00%
0.00%
Mark A. Hillman
buy
+10,000
+4.34%
4.34%
Warren Buffett
-0.84%
-5,425
-0.00%
0.12%
Current price: $221.48 30.01% AVG reported price*: $316.43
2019 Q4 (3 results)
Warren Buffett
buy
+648,447
+0.08%
0.08%
Ronald Muhlenkamp
-0.03%
-6
-0.00%
2.30%
Parnassus Investments
-100.00%
-144,865,273
-3.51%
0.00%
Current price: $221.48 25.36% AVG reported price*: $296.72
2019 Q3 (2 results)
Parnassus Investments
buy
+144,865,273
+3.56%
0.00%
Ronald Muhlenkamp
-0.03%
-6
-0.00%
2.02%
Current price: $221.48 89.51% AVG reported price*: $116.87
2019 Q2 (2 results)
Ronald Muhlenkamp
-0.35%
-63
-0.01%
2.02%
Rich Handler, Brian Friedman
-100.00%
-4,114
-0.18%
0.00%
Current price: $221.48 5.29% AVG reported price*: $233.86
2019 Q1 (3 results)
Ronald Muhlenkamp
-2.86%
-525
-0.06%
2.00%
Rich Handler, Brian Friedman
-64.31%
-7,412
-0.21%
0.00%
Michael Burry
-100.00%
-10,000
-3.06%
0.00%
Current price: $221.48 6.28% AVG reported price*: $236.33
2018 Q4 (2 results)
Michael Burry
buy
+10,000
+2.91%
0.00%
Rich Handler, Brian Friedman
+5.91%
+643
+0.02%
0.41%
Current price: $221.48 26.39% AVG reported price*: $300.89
2018 Q3 (2 results)
Rich Handler, Brian Friedman
-9.87%
-1,192
-0.03%
0.31%
Ronald Muhlenkamp
-27.03%
-6,803
-1.03%
2.79%
Current price: $221.48 37.31% AVG reported price*: $353.32
2018 Q2 (1 result)
Rich Handler, Brian Friedman
+90.73%
+5,744
+0.13%
0.27%
Current price: $221.48 23.70% Reported price*: $290.27
2018 Q1 (2 results)
Rich Handler, Brian Friedman
+311.91%
+4,794
+0.09%
0.12%
Ronald Muhlenkamp
+1.98%
+489
+0.05%
2.51%
Current price: $221.48 19.10% AVG reported price*: $273.77
2017 Q4 (2 results)
Rich Handler, Brian Friedman
buy
+1,537
+0.04%
0.04%
Ronald Muhlenkamp
+0.55%
+135
+0.01%
2.42%
Current price: $221.48 30.50% AVG reported price*: $318.69
2017 Q3 (1 result)
Ronald Muhlenkamp
-3.91%
-998
-0.10%
2.55%
Current price: $221.48 29.27% Reported price*: $313.11
48 of 75

Shares, change to shares, sold shares - split-adjusted.

Reported price - this doesn't represent the actual buy or sell price.
It is the split-adjusted price of the security as of the last day of the reported period.

Value or Price - If the security is completely sold out, we show the reported value (or price) prior to the actual period.