BIOGEN INC. - COM (BIIB)

Historical Holders from Q1 2014 to Q3 2025

Symbol
BIIB on Nasdaq
Type / Class
Equity / COM
Shares outstanding
147M
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
130M
Holdings value
$18.3B
% of all portfolios
0.008%
Grand Portfolio weight change
+0%
Number of holders
881
Number of buys
426
Number of sells
-338
Average Value change %
+0%
Average buys %
+0.003%
Average sells %
-0.002%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of BIOGEN INC. - COM (BIIB)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PRIMECAP MANAGEMENT CO/CA/ 10.2% $2.09B 15M PRIMECAP MANAGEMENT CO/CA/ 30 Sep 2025
BlackRock, Inc. 8.5% $1.5B 12.5M BlackRock, Inc. 31 Mar 2025
STATE STREET CORP 5% $1.03B 7.32M STATE STREET CORPORATION 30 Sep 2025

Institutional Holders of BIOGEN INC. - COM (BIIB)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 130M $18.3B +$176M $140.08 881
2025 Q2 129M $16.2B +$284M $125.59 856
2025 Q1 127M $17.4B -$578M $136.84 865
2024 Q4 131M $20.1B +$273M $152.92 861
2024 Q3 129M $24.9B -$144M $193.84 903
2024 Q2 128M $29.7B -$84.7M $231.82 933
2024 Q1 129M $27.7B +$55M $215.63 932
2023 Q4 128M $33.1B +$901M $258.77 993
2023 Q3 124M $32B -$470M $257.01 954
2023 Q2 126M $36B +$277M $284.85 994
2023 Q1 125M $34.8B +$301M $278.03 987
2022 Q4 125M $34.5B +$243M $276.92 1,018
2022 Q3 123M $32.9B +$385M $267.00 966
2022 Q2 122M $24.8B -$153M $203.94 911
2022 Q1 123M $25.8B -$220M $210.60 941
2021 Q4 124M $29.6B -$102M $239.92 996
2021 Q3 123M $34.9B -$615M $282.99 1,026
2021 Q2 126M $43.5B -$567M $346.27 1,091
2021 Q1 127M $35.6B -$381M $279.75 1,079
2020 Q4 129M $31.6B -$521M $244.86 1,047
2020 Q3 131M $37.1B -$1.22B $283.68 1,036
2020 Q2 135M $36.1B -$2.62B $267.55 1,048
2020 Q1 144M $45.6B -$2.07B $316.38 1,090
2019 Q4 151M $44.8B -$2.26B $296.73 1,090
2019 Q3 159M $37B -$349M $232.82 972
2019 Q2 160M $37.5B -$2.14B $233.87 1,002
2019 Q1 171M $40.5B -$1.01B $236.38 1,071
2018 Q4 175M $52.6B -$839M $300.92 1,135
2018 Q3 177M $62.6B -$269M $353.31 1,140
2018 Q2 178M $51.7B -$2.44B $290.24 1,087
2018 Q1 187M $51.2B -$489M $273.82 1,096
2017 Q4 189M $60B +$9.89M $318.57 1,120
2017 Q3 188M $59B +$472M $313.12 1,011
2017 Q2 187M $50.8B +$289M $271.36 991
2017 Q1 188M $51.5B +$4.12B $273.42 1,016
2016 Q4 189M $53.7B -$1.02B $283.58 1,021
2016 Q3 192M $60B +$480M $313.03 1,007
2016 Q2 191M $46.3B -$113M $241.82 957
2016 Q1 191M $49.7B -$389M $260.32 938
2015 Q4 192M $59B -$2.59B $306.35 965
2015 Q3 200M $58.4B -$3.82B $291.81 914
2015 Q2 211M $85.3B -$1.02B $403.94 961
2015 Q1 214M $90.2B +$321M $422.24 961
2014 Q4 213M $72.5B -$503M $339.45 877
2014 Q3 214M $70.9B -$178M $330.81 811
2014 Q2 215M $67.7B +$911M $315.31 777
2014 Q1 212M $64.8B -$390M $305.87 767