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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

35% more first-time investments, than exits

New positions opened: 73 | Existing positions closed: 54

11% more capital invested

Capital invested by funds: $47.5B → $52.6B (+$5.11B)

2% more funds holding

Funds holding: 646656 (+10)

10% less call options, than puts

Call options by funds: $619M | Put options by funds: $689M

10% less repeat investments, than reductions

Existing positions increased: 227 | Existing positions reduced: 253

17% less funds holding in top 10

Funds holding in top 10: 2924 (-5)

Holders
656
Holders Change
+10
Holders Change %
+1.55%
% of All Funds
21.27%
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
Name Holding Trade Value Shares
Change
Change in
Stake
SOMRS
151
State of Michigan Retirement System
Michigan
$23.3M -$33.1M -147,700 -60%
ProShare Advisors
152
ProShare Advisors
Maryland
$22.8M -$364K -1,625 -2%
Mackenzie Financial
153
Mackenzie Financial
Ontario, Canada
$22.5M +$910K +4,066 +5%
FQ
154
First Quadrant
California
$22.5M -$430K -1,920 -2%
Korea Investment Corp
155
Korea Investment Corp
South Korea
$22.5M -$1.07M -4,800 -5%
MSA
156
Mason Street Advisors
Wisconsin
$22.1M -$8.58M -38,332 -30%
DFO
157
Duquesne Family Office
New York
$22M
BSA
158
Braun Stacey Associates
New York
$21.9M -$1.93M -8,625 -9%
SC
159
Samlyn Capital
New York
$21.6M +$693K +3,096 +4%
Loomis, Sayles & Company
160
Loomis, Sayles & Company
Massachusetts
$21.5M +$166K +742 +0.8%
Credit Agricole
161
Credit Agricole
France
$21.1M +$19.6M +87,438 New
AC
162
Ascend Capital
California
$21.1M +$19.6M +87,440 New
RJA
163
Raymond James & Associates
Florida
$20.4M +$2.04M +9,119 +12%
TSU
164
TD Securities (USA)
New York
$19.6M +$98K +438 +0.5%
OI
165
Oakbrook Investments
Illinois
$19.2M -$705K -3,150 -4%
Public Sector Pension Investment Board (PSP Investments)
166
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$19.1M -$560K -2,500 -3%
Nisa Investment Advisors
167
Nisa Investment Advisors
Missouri
$18.9M -$51.3K -229 -0.3%
Two Sigma Advisers
168
Two Sigma Advisers
New York
$18.5M +$12.3M +55,100 +255%
ERSOT
169
Employees Retirement System of Texas
Texas
$18.4M -$2.34M -10,470 -12%
AIMCA
170
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$18.1M +$16.8M +75,200 New
HSA
171
Hussman Strategic Advisors
Maryland
$18.1M +$5.6M +25,000 +50%
PNC Financial Services Group
172
PNC Financial Services Group
Pennsylvania
$17.8M +$1.17M +5,214 +8%
AT
173
Arvest Trust
Oklahoma
$17.7M -$16.7M -74,799 -50%
GF
174
Gabelli Funds
New York
$17.6M -$1.37M -6,100 -8%
RGA
175
Red Granite Advisors
Wisconsin
$17.4M -$252K -1,124 -2%

BIIB Hedge Fund Activity: Q3 2013 in Review

656 of the 3,084 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q3 2013, worth a combined $52.6B — up 11% from $47.5B a quarter earlier.

Buyers outnumbered sellers: 73 funds opened new BIIB positions and 54 closed out — a net gain of 19 holders — while 227 added to existing stakes and 253 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $473M. The largest seller was Marsico Capital Management, cutting an estimated $251M.

  • 656 institutional investors held Biogen (BIIB) as of Q3 2013, up from 646 in Q2 2013.
  • Funds reported $52.6B of Biogen stock for Q3 2013, up 11% quarter-over-quarter.
  • 73 funds opened new Biogen positions in Q3 2013 and 54 closed out, a net change of +19 holders.
  • The largest Biogen buyer in Q3 2013 was Fidelity Investments, an estimated $473M added.
  • The largest Biogen seller in Q3 2013 was Marsico Capital Management, an estimated $251M sold.

Based on aggregated 13F filings for Q3 2013.