1,027 hedge funds and large institutions have $34.1B invested in Biogen in 2022 Q4 according to their latest regulatory filings, with 159 funds opening new positions, 323 increasing their positions, 360 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

more ownership

Funds ownership:

4% more capital invested

Capital invested by funds: $32.7B → $34.1B (+$1.4B)

10% less repeat investments, than reductions

Existing positions increased: 323 | Existing positions reduced: 360

14% less call options, than puts

Call options by funds: $1.29B | Put options by funds: $1.51B

Holders
1,027
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.29B
Puts
$1.51B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
626
$479K
627
$477K
628
$470K
629
$470K
630
$470K
631
$468K
632
$467K
633
$464K
634
$461K
635
$461K
636
$456K
637
$455K
638
$452K
639
$449K
640
$443K
641
$439K
642
$439K
643
$437K
644
$435K
645
$435K
646
$434K
647
$432K
648
$426K
649
$426K
650
$425K