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
476
$958K
477
$956K
478
$955K
479
$950K
480
$950K
481
$939K
482
$936K
483
$935K
484
$934K
485
$917K
486
$904K
487
$901K
488
$894K
489
$884K
490
$869K
491
$862K
492
$858K
493
$856K
494
$855K
495
$850K
496
$846K
497
$845K
498
$845K
499
$835K
500
$834K