994 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 87 funds opening new positions, 340 increasing their positions, 362 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more ownership

Funds ownership:

more capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

3% less funds holding

Funds holding: 1,026994 (-32)

14% less first-time investments, than exits

New positions opened: 87 | Existing positions closed: 101

21% less funds holding in top 10

Funds holding in top 10: 2419 (-5)

Holders
994
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
19
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$744M
Puts
$674M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
626
$430K
627
$430K
628
$428K
629
$427K
630
$418K
631
$417K
632
$417K
633
$414K
634
$410K
635
$409K
636
$407K
637
$405K
638
$403K
639
$398K
640
$397K
641
$395K
642
$390K
643
$385K
644
$385K
645
$384K
646
$383K
647
$381K
648
$379K
649
$378K
650
$376K