906 hedge funds and large institutions have $24.9B invested in Biogen in 2024 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 266 increasing their positions, 374 reducing their positions, and 117 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less funds holding

Funds holding:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less capital invested

Capital invested by funds: $ → $

25% less call options, than puts

Call options by funds: $213M | Put options by funds: $282M

27% less funds holding in top 10

Funds holding in top 10: 118 (-3)

29% less repeat investments, than reductions

Existing positions increased: 266 | Existing positions reduced: 374

Holders
906
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
$213M
Puts
$282M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
601
$296K
602
$295K
603
$293K
604
$292K
605
$291K
606
$289K
607
$287K
608
$286K
609
$283K
610
$279K
611
$277K
612
$275K
613
$274K
614
$273K
615
$273K
616
$272K
617
$271K
618
$270K
619
$269K
620
$267K
621
$267K
622
$265K
623
$263K
624
$262K
625
$261K