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
701
$296K
702
$294K
703
$293K
704
$291K
705
$288K
706
$287K
707
$285K
708
$284K
709
$283K
710
$282K
711
$282K
712
$278K
713
$278K
714
$278K
715
$276K
716
$274K
717
$274K
718
$271K
719
$268K
720
$267K
721
$265K
722
$264K
723
$264K
724
$263K
725
$261K