1,056 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, 337 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
1,056
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
426
$2.08M
427
$2.07M
428
$2.07M
429
$2.07M
430
$2.06M
431
$2.05M
432
$2.02M
433
$2.01M
434
$1.99M
435
$1.98M
436
$1.97M
437
$1.96M
438
$1.96M
439
$1.96M
440
$1.95M
441
$1.92M
442
$1.91M
443
$1.9M
444
$1.87M
445
$1.87M
446
$1.87M
447
$1.86M
448
$1.85M
449
$1.85M
450
$1.85M