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973 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, 348 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

18% more first-time investments, than exits

New positions opened: 100 | Existing positions closed: 85

5% more repeat investments, than reductions

Existing positions increased: 367 | Existing positions reduced: 348

1% more funds holding

Funds holding: 966973 (+7)

5% less capital invested

Capital invested by funds: $90B → $85.3B (-$4.71B)

24% less funds holding in top 10

Funds holding in top 10: 6852 (-16)

30% less call options, than puts

Call options by funds: $1.21B | Put options by funds: $1.72B

Holders
973
Holders Change
+7
Holders Change %
+0.72%
% of All Funds
26.22%
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
348
Closed
85
Calls
$1.21B
Puts
$1.72B
Net Calls
-$507M
Net Calls Change
+$74.4M
Name Holding Trade Value Shares
Change
Change in
Stake
California State Teachers Retirement System (CalSTRS)
76
California State Teachers Retirement System (CalSTRS)
California
$174M -$2M -4,990 -1%
Artisan Partners
77
Artisan Partners
Wisconsin
$167M -$22.4M -55,755 -12%
Barclays
78
Barclays
United Kingdom
$160M +$4.21M +10,484 +3%
GC
79
Guggenheim Capital
Illinois
$157M +$13.2M +32,991 +9%
Swiss National Bank
80
Swiss National Bank
Switzerland
$153M +$7.55M +18,800 +5%
Dimensional Fund Advisors
81
Dimensional Fund Advisors
Texas
$150M +$12.7M +31,654 +9%
HSBC Holdings
82
HSBC Holdings
United Kingdom
$149M -$9.51M -23,695 -6%
NFA
83
Nationwide Fund Advisors
Ohio
$144M +$8.32M +20,721 +6%
TCM
84
Tekla Capital Management
Massachusetts
$143M +$5.52M +13,750 +4%
VAM
85
Vontobel Asset Management
New York
$138M -$1.34M -3,344 -1%
RhumbLine Advisers
86
RhumbLine Advisers
Massachusetts
$135M -$22.7M -56,632 -14%
MTB
87
Mizuho Trust & Banking
Japan
$135M +$1.98M +4,929 +1%
Principal Financial Group
88
Principal Financial Group
Iowa
$128M +$2.44M +6,086 +2%
Royal Bank of Canada
89
Royal Bank of Canada
Ontario, Canada
$127M +$24.7M +61,571 +24%
Calamos Advisors
90
Calamos Advisors
Illinois
$125M +$40.2M +100,287 +48%
State Board of Administration of Florida Retirement System
91
State Board of Administration of Florida Retirement System
Florida
$123M -$3.4M -8,469 -3%
Arrowstreet Capital
92
Arrowstreet Capital
Massachusetts
$122M +$121M +300,810 +14,324%
BJ
93
BlackRock Japan
Japan
$120M +$4.51M +11,232 +4%
Fidelity International
94
Fidelity International
Bermuda
$117M +$36.5M +91,012 +46%
Swedbank
95
Swedbank
Sweden
$114M +$4.78M +11,920 +4%
SO
96
STRS Ohio
Ohio
$112M +$13.1M +32,560 +13%
Balyasny Asset Management
97
Balyasny Asset Management
Illinois
$111M +$99.7M +248,336 +923%
ACM
98
Atlanta Capital Management
Georgia
$111M +$65.5M +163,112 +148%
WA
99
WestEnd Advisors
North Carolina
$110M -$2.55M -6,345 -2%
TD Asset Management
100
TD Asset Management
Ontario, Canada
$105M -$3.71M -9,244 -3%