BIIB icon

Biogen
BIIB

Overview Fund Activity

656 hedge funds and large institutions have $52.6B invested in Biogen in 2013 Q3 according to their latest regulatory filings, with 73 funds opening new positions, 227 increasing their positions, 253 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
656
Holders Change
+10
Holders Change %
+1.55%
% of All Funds
21.28%
Holding in Top 10
24
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-17.24%
% of All Funds
0.78%
New
73
Increased
227
Reduced
253
Closed
54
Calls
$619M
Puts
$689M
Net Calls
-$69.9M
Net Calls Change
+$9.03M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$6.17B
2
Deutsche Bank
Deutsche Bank
Germany
$364M
3
O
OppenheimerFunds
New York
$271M
4
Invesco
Invesco
Georgia
$903M
5
BFA
BlackRock Fund Advisors
California
$874M

Top Sellers

1
MCM
Marsico Capital Management
Colorado
$693M
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$2.11B
3
Viking Global Investors
Viking Global Investors
Connecticut
$69.9M
4
AllianceBernstein
AllianceBernstein
Tennessee
$571M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
$631M
Name Holding Trade Value Shares
Change 		Shares
Change %
TP
676
Traxis Partners
Connecticut
– -$3.01M -14,000 Closed
ROTUOC
677
Regents of the University of California
California
– -$2.34M -10,855 Closed
CI
678
Chartist Inc
California
– -$2.32M -10,468 Closed
LG
679
Leuthold Group
Minnesota
– -$2.15M -9,979 Closed
CA
680
Cornerstone Advisors
North Carolina
– -$1.29M -6,000 Closed
CCIA
681
Campbell & Co Investment Adviser
Maryland
– -$1.08M -5,035 Closed
GF
682
Gerry Farber
New York
– -$990K -4,600 Closed
NAM
683
NorthCoast Asset Management
Connecticut
– -$798K -3,709 Closed
FCH
684
Freestone Capital Holdings
Washington
– -$763K -3,544 Closed
PIM
685
Partner Investment Management
California
– -$708K -3,292 Closed
RFS
686
Rockefeller Financial Services
New York
– -$699K -3,249 Closed
T
687
TradeWorx
New Jersey
– -$654K -3,040 Closed
IPRC
688
Indices-Pac Research Corporation
New Jersey
– -$632K -2,936 Closed
TC
689
TradeLink Capital
Illinois
– -$603K -2,800 Closed
BIC
690
Beach Investment Counsel
Pennsylvania
– -$603K -2,800 Closed
Twin Tree Management
691
Twin Tree Management
Texas
– -$545K -2,534 Closed
PP
692
Paloma Partners
Connecticut
– -$419K -1,947 Closed
IH
693
IFC Holdings
Florida
– -$378K -1,758 Closed
PWPCM
694
Perella Weinberg Partners Capital Management
New York
– -$375K -1,740 Closed
CAS
695
CTC Alternative Strategies
Illinois
– -$323K -1,500 Closed
CG
696
Clinton Group
New York
– -$318K -1,476 Closed
ACH
697
ArrowMark Colorado Holdings
Colorado
– -$312K -1,450 Closed
EMG
698
Ellington Management Group
Connecticut
– -$301K -1,400 Closed
GP
699
GLG Partners
United Kingdom
– -$238K -1,105 Closed
MAA
700
Mraz Amerine & Associates
California
– -$232K -1,080 Closed
25 26 27
28
29