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
476
$960K
477
$958K
478
$956K
479
$955K
480
$950K
481
$950K
482
$939K
483
$936K
484
$935K
485
$934K
486
$917K
487
$904K
488
$901K
489
$894K
490
$884K
491
$869K
492
$862K
493
$858K
494
$856K
495
$855K
496
$850K
497
$846K
498
$845K
499
$845K
500
$835K