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
376
$5.08M
377
$4.9M
378
$4.89M
379
$4.83M
380
$4.82M
381
$4.82M
382
$4.8M
383
$4.78M
384
$4.75M
385
$4.74M
386
$4.68M
387
$4.68M
388
$4.67M
389
$4.67M
390
$4.65M
391
$4.64M
392
$4.6M
393
$4.53M
394
$4.48M
395
$4.43M
396
$4.42M
397
$4.4M
398
$4.39M
399
$4.39M
400
$4.35M