963 hedge funds and large institutions have $32.1B invested in Biogen in 2023 Q3 according to their latest regulatory filings, with 91 funds opening new positions, 334 increasing their positions, 344 reducing their positions, and 118 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

11% less capital invested

Capital invested by funds: $36.1B → $32.1B (-$3.96B)

17% less funds holding in top 10

Funds holding in top 10: 1815 (-3)

23% less first-time investments, than exits

New positions opened: 91 | Existing positions closed: 118

Holders
963
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
15
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$575M
Puts
$517M
Net Calls
Net Calls Change

Top Buyers

1 +$363M
2 +$138M
3 +$80.3M
4
VanEck Associates
VanEck Associates
New York
+$62.6M
5
Macquarie Group
Macquarie Group
Australia
+$55.6M

Top Sellers

1 -$342M
2 -$172M
3 -$154M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$152M
5
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$91.2M
Name Holding Trade Value Shares
Change
Change in
Stake
751
$210K
752
$210K
753
$208K
754
$208K
755
$207K
756
$206K
757
$206K
758
$206K
759
$206K
760
$205K
761
$204K
762
$204K
763
$196K
764
$188K
765
$178K
766
$173K
767
$172K
768
$169K
769
$163K
770
$160K
771
$159K
772
$156K
773
$154K
774
$153K
775
$149K