1,057 hedge funds and large institutions have $36.2B invested in Biogen in 2020 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 338 increasing their positions, 437 reducing their positions, and 130 closing their positions.

New
Increased
Maintained
Reduced
Closed

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

26% less first-time investments, than exits

New positions opened: 96 | Existing positions closed: 130

37% less call options, than puts

Call options by funds: $894M | Put options by funds: $1.43B

57% less funds holding in top 10

Funds holding in top 10: 4921 (-28)

Holders
1,057
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
21
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$894M
Puts
$1.43B
Net Calls
Net Calls Change

Top Buyers

1 +$182M
2 +$148M
3 +$142M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$114M
5
AL
AJO LP
Pennsylvania
+$91.1M
Name Holding Trade Value Shares
Change
Change in
Stake
476
$1.54M
477
$1.53M
478
$1.53M
479
$1.51M
480
$1.51M
481
$1.51M
482
$1.51M
483
$1.5M
484
$1.5M
485
$1.49M
486
$1.48M
487
$1.47M
488
$1.46M
489
$1.45M
490
$1.44M
491
$1.42M
492
$1.42M
493
$1.41M
494
$1.41M
495
$1.4M
496
$1.4M
497
$1.39M
498
$1.38M
499
$1.37M
500
$1.36M