948 hedge funds and large institutions have $25.8B invested in Biogen in 2022 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 316 increasing their positions, 388 reducing their positions, and 132 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less call options, than puts

Call options by funds: $ | Put options by funds: $

less funds holding

Funds holding:

12% less capital invested

Capital invested by funds: $29.5B → $25.8B (-$3.68B)

19% less repeat investments, than reductions

Existing positions increased: 316 | Existing positions reduced: 388

37% less first-time investments, than exits

New positions opened: 83 | Existing positions closed: 132

Holders
948
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
12
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$789M
Puts
$798M
Net Calls
Net Calls Change

Top Buyers

1 +$153M
2 +$135M
3 +$128M
4
BlackRock
BlackRock
New York
+$84.1M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$83.6M

Top Sellers

1 -$497M
2 -$109M
3 -$106M
4
Ameriprise
Ameriprise
Minnesota
-$106M
5
Amundi
Amundi
France
-$96.6M
Name Holding Trade Value Shares
Change
Change in
Stake
726
$173K
727
$169K
728
$168K
729
$168K
730
$167K
731
$166K
732
$163K
733
$161K
734
$157K
735
$156K
736
$154K
737
$154K
738
$149K
739
$149K
740
$147K
741
$144K
742
$140K
743
$140K
744
$140K
745
$140K
746
$134K
747
$132K
748
$130K
749
$127K
750
$127K