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966 hedge funds and large institutions have $90B invested in Biogen in 2015 Q1 according to their latest regulatory filings, with 133 funds opening new positions, 336 increasing their positions, 371 reducing their positions, and 42 closing their positions.

New
Increased
Maintained
Reduced
Closed

217% more first-time investments, than exits

New positions opened: 133 | Existing positions closed: 42

31% more funds holding in top 10

Funds holding in top 10: 5268 (+16)

25% more capital invested

Capital invested by funds: $72.3B → $90B (+$17.7B)

9% more funds holding

Funds holding: 884966 (+82)

9% less repeat investments, than reductions

Existing positions increased: 336 | Existing positions reduced: 371

35% less call options, than puts

Call options by funds: $1.06B | Put options by funds: $1.64B

Holders
966
Holders Change
+82
Holders Change %
+9.28%
% 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
133
Increased
336
Reduced
371
Closed
42
Calls
$1.06B
Puts
$1.64B
Net Calls
-$582M
Net Calls Change
-$200M
Name Holding Trade Value Shares
Change
Change in
Stake
WA
976
Whitebox Advisors
Minnesota
-$7.92M -23,339 Closed
SFP
977
Santa Fe Partners
New Mexico
-$4.05M -11,932 Closed
MCM
978
Matterhorn Capital Management
Texas
-$3.6M -10,601 Closed
CIP
979
Convergence Investment Partners
Florida
-$3.48M -10,247 Closed
CI
980
Chartist Inc
California
-$3.31M -9,605 Closed
ST
981
Spot Trading
Illinois
-$3.37M -8,551 Closed
AF
982
Ally Financial
Michigan
-$2.72M -8,000 Closed
DS
983
DRW Securities
Illinois
-$2.65M -7,800 Closed
TI
984
Turner Investments
Pennsylvania
-$2.29M -6,757 Closed
F
985
FutureAdvisor
California
-$328K -6,593 Closed
Belvedere Trading
986
Belvedere Trading
Illinois
-$1.81M -5,320 Closed
GAM
987
Gotham Asset Management
New York
-$1.7M -5,012 Closed
AIM
988
abrdn Investment Management
United Kingdom
-$1.39M -4,096 Closed
LMIM
989
Lockheed Martin Investment Management
Maryland
-$1.22M -3,600 Closed
MSU
990
Maple Securities USA
New Jersey
-$1.02M -3,000 Closed
IMS
991
Index Management Solutions
Pennsylvania
-$1.02M -2,999 Closed
WMSA
992
Weiss Multi-Strategy Advisers
New York
-$679K -2,000 Closed
VF
993
Virtu Financial
New York
-$619K -1,825 Closed
FHB
994
First Hawaiian Bank
Hawaii
-$577K -1,701 Closed
AH
995
Achievement Holdings
Illinois
-$509K -1,500 Closed
ZIM
996
Zacks Investment Management
Illinois
-$502K -1,479 Closed
IWC
997
Integrated Wealth Counsel
California
-$441K -1,300 Closed
EAM
998
Evanson Asset Management
California
-$286K -842 Closed
GHAM
999
Gilman Hill Asset Management
Connecticut
-$233K -687 Closed
PBT
1000
Pictet Bank & Trust
Bahamas
-$224K -660 Closed

BIIB Hedge Fund Activity: Q1 2015 in Review

966 of the 3,753 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q1 2015, worth a combined $90B — up 25% from $72.3B a quarter earlier.

Buyers outnumbered sellers: 133 funds opened new BIIB positions and 42 closed out — a net gain of 91 holders — while 336 added to existing stakes and 371 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $888M. The largest seller was T. Rowe Price Associates, cutting an estimated $546M.

  • 966 institutional investors held Biogen (BIIB) as of Q1 2015, up from 884 in Q4 2014.
  • Funds reported $90B of Biogen stock for Q1 2015, up 25% quarter-over-quarter.
  • 133 funds opened new Biogen positions in Q1 2015 and 42 closed out, a net change of +91 holders.
  • The largest Biogen buyer in Q1 2015 was Fidelity Investments, an estimated $888M added.
  • The largest Biogen seller in Q1 2015 was T. Rowe Price Associates, an estimated $546M sold.

Based on aggregated 13F filings for Q1 2015.