950 hedge funds and large institutions have $25.9B invested in Biogen in 2022 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 318 increasing their positions, 388 reducing their positions, and 132 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less call options, than puts

Call options by funds: $ | Put options by funds: $

less funds holding

Funds holding:

12% less capital invested

Capital invested by funds: $29.5B → $25.9B (-$3.65B)

18% less repeat investments, than reductions

Existing positions increased: 318 | Existing positions reduced: 388

37% less first-time investments, than exits

New positions opened: 83 | Existing positions closed: 132

Holders
950
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
12
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$789M
Puts
$798M
Net Calls
Net Calls Change

Top Buyers

1 +$158M
2 +$140M
3 +$132M
4
BlackRock
BlackRock
New York
+$86.8M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$86.3M

Top Sellers

1 -$513M
2 -$112M
3 -$111M
4
BG
Bellevue Group
Switzerland
-$109M
5
Amundi
Amundi
France
-$99.2M
Name Holding Trade Value Shares
Change
Change in
Stake
476
$730K
477
$724K
478
$721K
479
$719K
480
$718K
481
$716K
482
$712K
483
$709K
484
$709K
485
$703K
486
$700K
487
$697K
488
$697K
489
$695K
490
$693K
491
$691K
492
$690K
493
$680K
494
$679K
495
$679K
496
$676K
497
$673K
498
$672K
499
$670K
500
$668K