946 hedge funds and large institutions have $27.8B invested in Biogen in 2024 Q1 according to their latest regulatory filings, with 102 funds opening new positions, 300 increasing their positions, 353 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

less call options, than puts

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

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

17% less capital invested

Capital invested by funds: $33.5B → $27.8B (-$5.74B)

20% less funds holding in top 10

Funds holding in top 10: 108 (-2)

29% less first-time investments, than exits

New positions opened: 102 | Existing positions closed: 144

Holders
946
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$301M
Puts
$303M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
701
$203K
702
$203K
703
$201K
704
$199K
705
$198K
706
$196K
707
$196K
708
$194K
709
$187K
710
$185K
711
$182K
712
$179K
713
$177K
714
$176K
715
$173K
716
$173K
717
$173K
718
$170K
719
$167K
720
$165K
721
$163K
722
$153K
723
$151K
724
$149K
725
$142K