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
351
$2.03M
352
$2M
353
$1.99M
354
$1.97M
355
$1.97M
356
$1.92M
357
$1.92M
358
$1.91M
359
$1.89M
360
$1.87M
361
$1.86M
362
$1.85M
363
$1.84M
364
$1.84M
365
$1.83M
366
$1.81M
367
$1.79M
368
$1.78M
369
$1.73M
370
$1.73M
371
$1.72M
372
$1.71M
373
$1.71M
374
$1.67M
375
$1.64M