BIIB Stock Ownership Activity

BIOGEN INC 13F holders

1 value investing guru has made changes to the BIOGEN INC (BIIB) position according to the gurus' latest SEC quarterly report(s). The number of BIIB shares has been increased by 1 super investor(s).

Which gurus or hedge funds are buying BIIB now?

According to the latest SEC filing(s) BIOGEN INC (BIIB) has been bought by Parnassus Investments - Parnassus Endeavor Fund (added shares +0.21%).

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

2024 Q3 (1 result)
Parnassus Investments
+0.21%
+770
+0.00%
1.38%
Current price: $140.98 27.27% Reported price*: $193.84
2024 Q1 (1 result)
Mark A. Hillman
+0.57%
+139
+0.01%
2.16%
Current price: $140.98 34.62% Reported price*: $215.63
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: $140.98 45.15% AVG reported price*: $257.01
2022 Q4 (1 result)
Parnassus Investments
-12.06%
-41,943
-0.25%
1.84%
Current price: $140.98 49.09% 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: $140.98 47.20% AVG reported price*: $267.00
2022 Q2 (1 result)
Mason Hawkins
-100.00%
-337,077
-5.07%
0.00%
Current price: $140.98 33.06% Reported price*: $210.60
2022 Q1 (1 result)
Mark A. Hillman
+59.89%
+10,900
+0.93%
2.49%
Current price: $140.98 33.06% Reported price*: $210.60
2021 Q4 (2 results)
Mason Hawkins
buy
+337,077
+4.86%
4.86%
Parnassus Investments
buy
+452,053
+2.00%
2.00%
Current price: $140.98 41.24% AVG reported price*: $239.92
2021 Q3 (2 results)
Ronald Muhlenkamp
-100.00%
-18,218
-2.42%
0.00%
Bill Miller
-100.00%
-79,493
-0.94%
0.00%
Current price: $140.98 59.28% AVG reported price*: $346.26
2021 Q2 (4 results)
Bill Miller
buy
+79,493
+0.72%
0.00%
Ronald Muhlenkamp
+0.19%
+34
+0.00%
0.00%
Mason Hawkins
-100.00%
-249,422
-4.67%
0.00%
Warren Buffett
-100.00%
-643,022
-0.06%
0.00%
Current price: $140.98 54.96% AVG reported price*: $313.00
2021 Q1 (3 results)
Mason Hawkins
buy
+249,422
+4.59%
0.00%
Mark A. Hillman
+37.88%
+5,000
+0.81%
2.95%
Ronald Muhlenkamp
+0.20%
+37
+0.00%
2.35%
Current price: $140.98 55.21% AVG reported price*: $314.78
2020 Q4 (1 result)
Ronald Muhlenkamp
+0.52%
+94
+0.01%
1.79%
Current price: $140.98 42.42% 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: $140.98 50.30% AVG reported price*: $283.67
2020 Q2 (3 results)
Ronald Muhlenkamp
+0.35%
+63
+0.01%
2.55%
Ravenel Boykin Curry IV
-100.00%
-2,600
-0.00%
0.00%
Duan Yongping
-100.00%
-10,000
-0.06%
0.00%
Current price: $140.98 47.31% AVG reported price*: $267.57
2020 Q1 (4 results)
Duan Yongping
buy
+10,000
+0.11%
0.00%
Mark A. Hillman
buy
+10,000
+4.34%
4.34%
Ravenel Boykin Curry IV
buy
+2,600
+0.00%
0.00%
Warren Buffett
-0.84%
-5,425
-0.00%
0.12%
Current price: $140.98 55.44% AVG reported price*: $316.38
2019 Q4 (2 results)
Warren Buffett
buy
+648,447
+0.08%
0.08%
Ronald Muhlenkamp
-0.03%
-6
-0.00%
2.30%
Current price: $140.98 52.49% AVG reported price*: $296.72
2019 Q3 (1 result)
Ronald Muhlenkamp
-0.03%
-6
-0.00%
2.02%
Current price: $140.98 39.44% Reported price*: $232.81
2019 Q2 (1 result)
Ronald Muhlenkamp
-0.35%
-63
-0.01%
2.02%
Current price: $140.98 39.72% Reported price*: $233.86
2019 Q1 (2 results)
Ronald Muhlenkamp
-2.86%
-525
-0.06%
2.00%
Michael Burry
-100.00%
-10,000
-3.06%
0.00%
Current price: $140.98 40.36% AVG reported price*: $236.40
2018 Q4 (1 result)
Michael Burry
buy
+10,000
+2.91%
0.00%
Current price: $140.98 53.15% Reported price*: $300.90
2018 Q3 (1 result)
Ronald Muhlenkamp
-27.03%
-6,803
-1.03%
2.79%
Current price: $140.98 60.10% Reported price*: $353.33
2018 Q1 (1 result)
Ronald Muhlenkamp
+1.98%
+489
+0.05%
2.51%
Current price: $140.98 48.51% Reported price*: $273.81
2017 Q4 (1 result)
Ronald Muhlenkamp
+0.55%
+135
+0.01%
2.42%
Current price: $140.98 55.75% Reported price*: $318.57
2017 Q3 (1 result)
Ronald Muhlenkamp
-3.91%
-998
-0.10%
2.55%
Current price: $140.98 54.97% Reported price*: $313.11
2017 Q2 (2 results)
Ronald Muhlenkamp
-0.05%
-12
-0.00%
2.27%
Ole Andreas Halvorsen
-100.00%
-688,765
-1.27%
0.00%
Current price: $140.98 48.05% AVG reported price*: $271.36
2017 Q1 (2 results)
Ronald Muhlenkamp
+9.79%
+2,278
+0.20%
2.26%
Ole Andreas Halvorsen
-64.10%
-1,230,047
-1.49%
0.00%
Current price: $140.98 48.44% AVG reported price*: $273.43
2016 Q4 (3 results)
Ronald Muhlenkamp
-0.85%
-199
-0.02%
2.20%
Ole Andreas Halvorsen
-12.24%
-267,524
-0.34%
2.47%
Sarah Ketterer
-100.00%
-404,444
-2.49%
0.00%
Current price: $140.98 50.28% AVG reported price*: $283.57
48 of 66

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.