968 hedge funds and large institutions have $58.9B invested in Biogen in 2015 Q4 according to their latest regulatory filings, with 139 funds opening new positions, 330 increasing their positions, 372 reducing their positions, and 82 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
968
Holders Change
+46
Holders Change %
+4.99%
% of All Funds
25.42%
Holding in Top 10
37
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.97%
New
139
Increased
330
Reduced
372
Closed
82
Calls
$1.24B
Puts
$1.63B
Net Calls
-$397M
Net Calls Change
+$181M
Name Holding Trade Value Shares
Change
Shares
Change %
VW
326
Vantage Wealth
California
$6.75M +$67.4K +220 +1%
BCAM
327
Boston Common Asset Management
Massachusetts
$6.73M +$1M +3,272 +18%
OI
328
Oakbrook Investments
Illinois
$6.72M -$821K -2,680 -11%
SAM
329
Securian Asset Management
Minnesota
$6.66M -$147K -481 -2%
NB
330
Norinchukin Bank
Japan
$6.64M -$1.1M -3,591 -14%
SB
331
Suntrust Banks
Georgia
$6.63M +$65.2K +213 +1%
DC
332
Deere & Company
Illinois
$6.6M +$3.43M +11,212 +108%
RCM
333
Riverhead Capital Management
Delaware
$6.59M -$713K -2,329 -10%
DAM
334
Deltec Asset Management
New York
$6.48M -$2.25M -7,350 -26%
HighTower Advisors
335
HighTower Advisors
Illinois
$6.42M +$2.72M +8,893 +74%
WC
336
Wexford Capital
Florida
$6.39M -$10.1M -32,953 -61%
CAM
337
Capstone Asset Management
Texas
$6.34M +$531K +1,734 +9%
AIP
338
Ameritas Investment Partners
Nebraska
$6.22M -$86.7K -283 -1%
SIA
339
SeaBridge Investment Advisors
New Jersey
$6.2M +$1.29M +4,217 +26%
TG
340
TCW Group
California
$6.13M +$200K +654 +3%
IHM
341
Iguana Healthcare Management
New York
$6.13M -$3.06M -10,000 -33%
B
342
BP
United Kingdom
$6.13M -$1.53M -5,000 -20%
MC
343
Middleton & Co
Massachusetts
$5.92M -$933K -3,046 -14%
GT
344
Glenview Trust
Kentucky
$5.92M +$5.92M +19,309 New
Jane Street
345
Jane Street
New York
$5.91M -$5.39M -17,583 -48%
AT
346
Arden Trust
Delaware
$5.9M +$11K +36 +0.2%
PDN
347
Pensionfund DSM Netherlands
Netherlands
$5.85M -$796K -2,600 -12%
CAI
348
Capital Advisors Inc
Oklahoma
$5.79M +$1.93M +6,304 +50%
DL
349
Delta Lloyd
Netherlands
$5.78M +$352K +1,150 +6%
B
350
Barings
North Carolina
$5.77M +$5.77M +18,826 New