1,057 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, 287 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 (-$5.44B)

33% less repeat investments, than reductions

Existing positions increased: 287 | Existing positions reduced: 431

61% less funds holding in top 10

Funds holding in top 10: 187 (-11)

Holders
1,057
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
476
$1.33M
477
$1.33M
478
$1.33M
479
$1.32M
480
$1.31M
481
$1.31M
482
$1.29M
483
$1.28M
484
$1.27M
485
$1.26M
486
$1.26M
487
$1.26M
488
$1.23M
489
$1.23M
490
$1.22M
491
$1.21M
492
$1.21M
493
$1.21M
494
$1.2M
495
$1.2M
496
$1.18M
497
$1.17M
498
$1.16M
499
$1.15M
500
$1.15M