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
576
$400K
577
$397K
578
$396K
579
$394K
580
$394K
581
$394K
582
$394K
583
$391K
584
$390K
585
$388K
586
$385K
587
$384K
588
$379K
589
$375K
590
$374K
591
$374K
592
$373K
593
$372K
594
$372K
595
$372K
596
$371K
597
$368K
598
$364K
599
$362K
600
$359K