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Biogen
BIIB

Overview Fund Activity

965 hedge funds and large institutions have $90B invested in Biogen in 2015 Q1 according to their latest regulatory filings, with 132 funds opening new positions, 336 increasing their positions, 371 reducing their positions, and 42 closing their positions.

Holders
965
Holders Change
+81
Holders Change %
+9.16%
% of All Funds
25.74%
Holding in Top 10
68
Holding in Top 10 Change
+16
Holding in Top 10 Change %
+30.77%
% of All Funds
1.81%
New
132
Increased
336
Reduced
371
Closed
42
Calls
$1.06B
Puts
$1.64B
Net Calls
-$582M
Net Calls Change
-$200M

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$9.31B
2
JSP
2
Jackson Square Partners
California
$438M
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$1.46B
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$385M
5
IC
5
Institutional Capital
Illinois
$279M

Top Sellers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$4.56B
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$2.47B
3
Primecap Management
3
Primecap Management
California
$6.99B
4
Goldman Sachs
4
Goldman Sachs
New York
$534M
5
Jennison Associates
5
Jennison Associates
New York
$2.15B
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$9.31B 22,041,151 +2,253,038 +11%
Primecap Management
2
Primecap Management
California
$6.99B 16,558,763 -611,930 -4%
Vanguard Group
3
Vanguard Group
Pennsylvania
$5.55B 13,142,336 +411,642 +3%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$4.56B 10,791,562 -1,384,986 -11%
State Street
5
State Street
Massachusetts
$4.13B 9,785,190 -320,601 -3%
ClearBridge Investments
6
ClearBridge Investments
New York
$3.39B 8,025,241 -206,429 -3%
BIT
7
BlackRock Institutional Trust
California
$2.63B 6,220,983 -45,828 -0.7%
JPMorgan Chase & Co
8
JPMorgan Chase & Co
New York
$2.47B 5,853,035 -1,121,931 -16%
Jennison Associates
9
Jennison Associates
New York
$2.15B 5,095,601 -524,062 -9%
Sands Capital Management
10
Sands Capital Management
Virginia
$2.12B 5,009,615 +35,284 +0.7%
BFA
11
BlackRock Fund Advisors
California
$1.86B 4,407,782 -126,812 -3%
Invesco
12
Invesco
Georgia
$1.5B 3,559,467 +216,716 +6%
Wellington Management Group
13
Wellington Management Group
Massachusetts
$1.46B 3,467,280 +931,435 +37%
Ameriprise
14
Ameriprise
Minnesota
$1.37B 3,235,509 +465,986 +17%
Bank of New York Mellon
15
Bank of New York Mellon
New York
$1.36B 3,216,860 -141,993 -4%
Northern Trust
16
Northern Trust
Illinois
$1.32B 3,120,851 -24,405 -0.8%
WRF
17
Waddell & Reed Financial
Kansas
$1.13B 2,668,407 -232,267 -8%
Wells Fargo
18
Wells Fargo
California
$1.02B 2,408,190 -303,123 -11%
Franklin Resources
19
Franklin Resources
California
$968M 2,293,607 +167,123 +8%
JHIU
20
Janus Henderson Investors US
Colorado
$921M 2,180,277 -499,445 -19%
BG
21
BlackRock Group
United Kingdom
$905M 2,143,370 -51,690 -2%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$808M 1,916,624 +54,959 +3%
Winslow Capital Management
23
Winslow Capital Management
Minnesota
$803M 1,902,328 -7,669 -0.4%
MCM
24
Marsico Capital Management
Colorado
$768M 1,818,871 +211,715 +13%
AllianceBernstein
25
AllianceBernstein
Tennessee
$730M 1,729,597 +153,232 +10%
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