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
451
$1.55M
452
$1.54M
453
$1.53M
454
$1.52M
455
$1.52M
456
$1.52M
457
$1.51M
458
$1.49M
459
$1.49M
460
$1.45M
461
$1.43M
462
$1.43M
463
$1.43M
464
$1.43M
465
$1.43M
466
$1.42M
467
$1.42M
468
$1.42M
469
$1.4M
470
$1.4M
471
$1.39M
472
$1.36M
473
$1.35M
474
$1.35M
475
$1.34M