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Biogen
BIIB

Overview Fund Activity

738 hedge funds and large institutions have $60.8B invested in Biogen in 2013 Q4 according to their latest regulatory filings, with 121 funds opening new positions, 247 increasing their positions, 264 reducing their positions, and 30 closing their positions.

Holders
738
Holders Change
+82
Holders Change %
+12.5%
% of All Funds
21.43%
Holding in Top 10
37
Holding in Top 10 Change
+13
Holding in Top 10 Change %
+54.17%
% of All Funds
1.07%
New
121
Increased
247
Reduced
264
Closed
30
Calls
$913M
Puts
$771M
Net Calls
+$142M
Net Calls Change
+$212M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$3.26B
2
DCP
2
DSM Capital Partners
Florida
$201M
3
WRF
3
Waddell & Reed Financial
Kansas
$579M
4
Morgan Stanley
4
Morgan Stanley
New York
$224M
5
Barclays
5
Barclays
United Kingdom
$186M

Top Sellers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$1.92B
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$6.73B
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$888M
4
UBS AM
4
UBS AM
Illinois
$454M
5
Deutsche Bank
5
Deutsche Bank
Germany
$289M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$6.73B 24,041,515 -1,598,992 -6%
Primecap Management
2
Primecap Management
California
$4.97B 17,777,602 -190,570 -1%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$3.26B 11,651,138 +823,942 +8%
Vanguard Group
4
Vanguard Group
Pennsylvania
$3.25B 11,623,653 +105,771 +0.9%
State Street
5
State Street
Massachusetts
$2.84B 10,154,282 -104,496 -1%
Capital Research Global Investors
6
Capital Research Global Investors
California
$2.56B 9,157,000 +315,000 +4%
ClearBridge Investments
7
ClearBridge Investments
New York
$2.29B 8,204,333 -22,029 -0.3%
JPMorgan Chase & Co
8
JPMorgan Chase & Co
New York
$1.92B 6,873,253 -1,905,162 -22%
Jennison Associates
9
Jennison Associates
New York
$1.82B 6,505,831 +117,882 +2%
BIT
10
BlackRock Institutional Trust
California
$1.7B 6,092,141 -108,958 -2%
Sands Capital Management
11
Sands Capital Management
Virginia
$1.33B 4,754,160 +118,919 +3%
Invesco
12
Invesco
Georgia
$1.03B 3,676,529 -74,468 -2%
BFA
13
BlackRock Fund Advisors
California
$985M 3,522,571 -107,721 -3%
Northern Trust
14
Northern Trust
Illinois
$895M 3,202,116 -13,226 -0.4%
Wellington Management Group
15
Wellington Management Group
Massachusetts
$888M 3,173,597 -593,207 -16%
Bank of New York Mellon
16
Bank of New York Mellon
New York
$832M 2,977,248 -74,917 -2%
TCIM
17
TIAA CREF Investment Management
New York
$828M 2,959,020 -163,286 -5%
Winslow Capital Management
18
Winslow Capital Management
Minnesota
$712M 2,547,289 -74,286 -3%
MCM
19
Marsico Capital Management
Colorado
$705M 2,521,231 -355,788 -12%
Ameriprise
20
Ameriprise
Minnesota
$686M 2,450,728 +288,758 +13%
Wells Fargo
21
Wells Fargo
California
$597M 2,134,062 +154,502 +8%
AllianceBernstein
22
AllianceBernstein
Tennessee
$584M 2,086,420 -286,897 -12%
WRF
23
Waddell & Reed Financial
Kansas
$579M 2,071,465 +616,724 +42%
BG
24
BlackRock Group
United Kingdom
$524M 1,873,030 -21,899 -1%
Franklin Resources
25
Franklin Resources
California
$519M 1,854,328 +175,987 +10%
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