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
551
$443K
552
$442K
553
$439K
554
$438K
555
$438K
556
$436K
557
$433K
558
$433K
559
$431K
560
$431K
561
$430K
562
$429K
563
$428K
564
$426K
565
$421K
566
$413K
567
$411K
568
$411K
569
$407K
570
$406K
571
$405K
572
$405K
573
$403K
574
$403K
575
$402K