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
326
$2.48M
327
$2.46M
328
$2.43M
329
$2.42M
330
$2.42M
331
$2.4M
332
$2.39M
333
$2.38M
334
$2.38M
335
$2.38M
336
$2.27M
337
$2.23M
338
$2.22M
339
$2.18M
340
$2.14M
341
$2.13M
342
$2.13M
343
$2.13M
344
$2.11M
345
$2.1M
346
$2.09M
347
$2.08M
348
$2.06M
349
$2.06M
350
$2.04M