950 hedge funds and large institutions have $25.9B invested in Biogen in 2022 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 318 increasing their positions, 388 reducing their positions, and 132 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less call options, than puts

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

less funds holding

Funds holding:

12% less capital invested

Capital invested by funds: $29.5B → $25.9B (-$3.65B)

18% less repeat investments, than reductions

Existing positions increased: 318 | Existing positions reduced: 388

37% less first-time investments, than exits

New positions opened: 83 | Existing positions closed: 132

Holders
950
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
12
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$789M
Puts
$798M
Net Calls
Net Calls Change

Top Buyers

1 +$158M
2 +$140M
3 +$132M
4
BlackRock
BlackRock
New York
+$86.8M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$86.3M

Top Sellers

1 -$513M
2 -$112M
3 -$111M
4
BG
Bellevue Group
Switzerland
-$109M
5
Amundi
Amundi
France
-$99.2M
Name Holding Trade Value Shares
Change
Change in
Stake
626
$305K
627
$302K
628
$300K
629
$295K
630
$295K
631
$295K
632
$289K
633
$287K
634
$283K
635
$283K
636
$283K
637
$282K
638
$278K
639
$277K
640
$277K
641
$273K
642
$273K
643
$270K
644
$268K
645
$267K
646
$263K
647
$262K
648
$261K
649
$260K
650
$260K