972 hedge funds and large institutions have $85.3B invested in Biogen in 2015 Q2 according to their latest regulatory filings, with 100 funds opening new positions, 367 increasing their positions, 347 reducing their positions, and 85 closing their positions.

Holders
972
Holders Change
+7
Holders Change %
+0.73%
% of All Funds
26.21%
Holding in Top 10
52
Holding in Top 10 Change
-16
Holding in Top 10 Change %
-23.53%
% of All Funds
1.4%
New
100
Increased
367
Reduced
347
Closed
85
Calls
$1.21B
Puts
$1.72B
Net Calls
-$507M
Net Calls Change
+$74.4M
Name Market Value Shares Shares
Change
Shares
Change %
ALA
726
Atherton Lane Advisers
California
$479K 1,186 +6 +0.5%
CIA
727
Choate Investment Advisors
Massachusetts
$469K 1,161 +1,161 New
CC
728
Courier Capital
New York
$465K 1,152 -84 -7%
WTB
729
Washington Trust Bank
Washington
$465K 1,152
BA
730
Birinyi Associates
Connecticut
$465K 1,150 +230 +25%
GCM
731
Graham Capital Management
Connecticut
$465K 1,150 +1,150 New
ZIM
732
Zacks Investment Management
Illinois
$454K 1,124 +1,124 New
TFCP
733
Twin Focus Capital Partners
Massachusetts
$446K 1,103
GIA
734
Granite Investment Advisors
New Hampshire
$444K 1,100
SG
735
Swarthmore Group
Pennsylvania
$444K 1,100 +50 +5%
SWP
736
Stratos Wealth Partners
Ohio
$442K 1,094 -239 -18%
MPI
737
Mairs & Power Inc
Minnesota
$442K 1,095 -25 -2%
FBNAT
738
FirstMerit Bank N.A. Trustee
Ohio
$441K 1,092 -19 -2%
MSU
739
Maple Securities USA
New Jersey
$440K 1,090 +1,090 New
BDF
740
Balasa Dinverno & Foltz
$435K 1,078 -19 -2%
AGM
741
Alpine Global Management
New York
$430K 1,064 -88 -8%
SAM
742
Silvercrest Asset Management
New York
$430K 1,065 +405 +61%
GGHC
743
Gilder Gagnon Howe & Co
New York
$429K 1,062 -2 -0.2%
CL
744
CPWM LLC
Washington
$427K 1,057 +286 +37%
GC
745
Gratus Capital
Georgia
$424K 1,050 -300 -22%
BT
746
Beacon Trust
New Jersey
$423K 1,046 +50 +5%
RWM
747
Rench Wealth Management
Texas
$422K 1,044 +1,044 New
GLI
748
Guardian Life Insurance
New York
$416K 1,029
KA
749
KLCM Advisors
Wisconsin
$410K 1,016 -180 -15%
AAP
750
Ardsley Advisory Partners
Connecticut
$406K 1,000 +1,000 New