996 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 88 funds opening new positions, 341 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: 1,027996 (-31)

13% less first-time investments, than exits

New positions opened: 88 | Existing positions closed: 101

21% less funds holding in top 10

Funds holding in top 10: 2419 (-5)

Holders
996
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
$834K
502
$833K
503
$833K
504
$819K
505
$812K
506
$808K
507
$802K
508
$797K
509
$784K
510
$779K
511
$777K
512
$776K
513
$770K
514
$767K
515
$763K
516
$755K
517
$747K
518
$734K
519
$730K
520
$729K
521
$728K
522
$716K
523
$715K
524
$707K
525
$706K