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
601
$359K
602
$359K
603
$359K
604
$359K
605
$358K
606
$358K
607
$357K
608
$356K
609
$356K
610
$356K
611
$356K
612
$355K
613
$351K
614
$350K
615
$346K
616
$343K
617
$343K
618
$341K
619
$340K
620
$338K
621
$336K
622
$335K
623
$334K
624
$330K
625
$329K