1,092 hedge funds and large institutions have $35.6B invested in Biogen in 2021 Q1 according to their latest regulatory filings, with 140 funds opening new positions, 357 increasing their positions, 408 reducing their positions, and 99 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

5% more call options, than puts

Call options by funds: $1.45B | Put options by funds: $1.37B

0.12% less ownership

Funds ownership: 83.98%83.86% (-0.12%)

13% less repeat investments, than reductions

Existing positions increased: 357 | Existing positions reduced: 408

Holders
1,092
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.45B
Puts
$1.37B
Net Calls
Net Calls Change

Top Buyers

1 +$263M
2 +$252M
3 +$163M
4
ClearBridge Investments
ClearBridge Investments
New York
+$99.9M
5
A
AustralianSuper
Australia
+$99.3M

Top Sellers

1 -$297M
2 -$121M
3 -$113M
4
Marshall Wace
Marshall Wace
United Kingdom
-$96.4M
5
State Street
State Street
Massachusetts
-$86.2M
Name Holding Trade Value Shares
Change
Change in
Stake
776
$281K
777
$280K
778
$280K
779
$280K
780
$276K
781
$276K
782
$273K
783
$271K
784
$266K
785
$266K
786
$266K
787
$265K
788
$265K
789
$265K
790
$264K
791
$262K
792
$261K
793
$260K
794
$259K
795
$256K
796
$255K
797
$255K
798
$255K
799
$253K
800
$252K