1,096 hedge funds and large institutions have $45.8B invested in Biogen in 2020 Q1 according to their latest regulatory filings, with 112 funds opening new positions, 325 increasing their positions, 474 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

less funds holding

Funds holding:

0.8% less ownership

Funds ownership: 84.16%83.37% (-0.8%)

18% less call options, than puts

Call options by funds: $1.24B | Put options by funds: $1.51B

31% less repeat investments, than reductions

Existing positions increased: 325 | Existing positions reduced: 474

Holders
1,096
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
49
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.24B
Puts
$1.51B
Net Calls
Net Calls Change

Top Buyers

1 +$719M
2 +$246M
3 +$231M
4
O
OrbiMed
New York
+$132M
5
BlackRock
BlackRock
New York
+$122M
Name Holding Trade Value Shares
Change
Change in
Stake
351
$4.24M
352
$4.2M
353
$4.09M
354
$4.05M
355
$3.99M
356
$3.98M
357
$3.9M
358
$3.89M
359
$3.88M
360
$3.82M
361
$3.8M
362
$3.68M
363
$3.67M
364
$3.66M
365
$3.66M
366
$3.65M
367
$3.64M
368
$3.6M
369
$3.58M
370
$3.57M
371
$3.55M
372
$3.54M
373
$3.54M
374
$3.54M
375
$3.52M