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
326
$3.34M
327
$3.31M
328
$3.31M
329
$3.27M
330
$3.27M
331
$3.23M
332
$3.18M
333
$3.18M
334
$3.17M
335
$3.17M
336
$3.16M
337
$3.16M
338
$3.15M
339
$3.14M
340
$3.13M
341
$3.1M
342
$3.08M
343
$3.08M
344
$3.07M
345
$3.05M
346
$3.02M
347
$3.01M
348
$3.01M
349
$2.98M
350
$2.96M