1,024 hedge funds and large institutions have $53.8B invested in Biogen in 2016 Q4 according to their latest regulatory filings, with 137 funds opening new positions, 364 increasing their positions, 400 reducing their positions, and 107 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

9% less capital invested

Capital invested by funds: $59.3B → $53.8B (-$5.52B)

13% less call options, than puts

Call options by funds: $1.52B | Put options by funds: $1.74B

28% less funds holding in top 10

Funds holding in top 10: 5741 (-16)

Holders
1,024
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
41
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.52B
Puts
$1.74B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
426
$3.46M
427
$3.44M
428
$3.37M
429
$3.34M
430
$3.33M
431
$3.33M
432
$3.33M
433
$3.3M
434
$3.24M
435
$3.22M
436
$3.21M
437
$3.18M
438
$3.15M
439
$3.11M
440
$3.08M
441
$3.08M
442
$3.08M
443
$3.06M
444
$3.02M
445
$3.01M
446
$2.96M
447
$2.96M
448
$2.96M
449
$2.95M
450
$2.91M