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
501
$833K
502
$833K
503
$819K
504
$812K
505
$808K
506
$802K
507
$797K
508
$784K
509
$779K
510
$777K
511
$776K
512
$770K
513
$767K
514
$763K
515
$755K
516
$747K
517
$734K
518
$730K
519
$729K
520
$728K
521
$716K
522
$715K
523
$707K
524
$706K
525
$703K