1,058 hedge funds and large institutions have $31.7B invested in Biogen in 2020 Q4 according to their latest regulatory filings, with 170 funds opening new positions, 288 increasing their positions, 431 reducing their positions, and 148 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

15% less capital invested

Capital invested by funds: $37.1B → $31.7B (-$5.45B)

33% less repeat investments, than reductions

Existing positions increased: 288 | Existing positions reduced: 431

61% less funds holding in top 10

Funds holding in top 10: 187 (-11)

Holders
1,058
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.98B
Puts
$1.64B
Net Calls
Net Calls Change

Top Sellers

1 -$289M
2 -$256M
3 -$191M
4
State Street
State Street
Massachusetts
-$130M
5
KBC Group
KBC Group
Belgium
-$114M
Name Holding Trade Value Shares
Change
Change in
Stake
301
$4.23M
302
$4.23M
303
$4.21M
304
$4.16M
305
$4.08M
306
$4.04M
307
$3.99M
308
$3.99M
309
$3.95M
310
$3.93M
311
$3.9M
312
$3.88M
313
$3.85M
314
$3.81M
315
$3.79M
316
$3.79M
317
$3.75M
318
$3.73M
319
$3.7M
320
$3.69M
321
$3.66M
322
$3.65M
323
$3.58M
324
$3.53M
325
$3.37M