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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.

New
Increased
Maintained
Reduced
Closed

303% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 30

54% more funds holding in top 10

Funds holding in top 10: 2437 (+13)

18% more call options, than puts

Call options by funds: $913M | Put options by funds: $771M

16% more capital invested

Capital invested by funds: $52.6B → $60.8B (+$8.27B)

13% more funds holding

Funds holding: 656738 (+82)

6% less repeat investments, than reductions

Existing positions increased: 247 | Existing positions reduced: 264

Holders
738
Holders Change
+82
Holders Change %
+12.5%
% of All Funds
21.42%
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
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
51
BlackRock
New York
$187M +$30.5M +118,058 +21%
Barclays
52
Barclays
United Kingdom
$186M +$90.7M +350,543 +110%
BIM
53
BlackRock Investment Management
Delaware
$186M -$4.79M -18,505 -3%
TA
54
Teachers Advisors
New York
$181M -$2.67M -10,312 -2%
CS
55
Credit Suisse
Switzerland
$180M +$28.9M +111,634 +21%
Sumitomo Mitsui Trust Group
56
Sumitomo Mitsui Trust Group
Japan
$169M -$8.13M -31,442 -5%
Charles Schwab
57
Charles Schwab
California
$168M +$4.71M +18,203 +3%
AQR Capital Management
58
AQR Capital Management
Connecticut
$167M +$55.3M +213,992 +56%
FAM
59
Fred Alger Management
New York
$162M +$65.6M +253,735 +78%
SAM
60
Sectoral Asset Management
Quebec, Canada
$152M +$66.8M +258,375 +90%
Renaissance Technologies
61
Renaissance Technologies
New York
$152M -$84.7M -327,362 -38%
APG Asset Management
62
APG Asset Management
Netherlands
$134M -$7.68M -29,682 -6%
New York State Teachers Retirement System (NYSTRS)
63
New York State Teachers Retirement System (NYSTRS)
New York
$131M -$4.41M -17,061 -4%
Mitsubishi UFJ Trust & Banking
64
Mitsubishi UFJ Trust & Banking
Japan
$123M -$2.29M -8,873 -2%
BNP Paribas Financial Markets
65
BNP Paribas Financial Markets
France
$123M +$1.44M +5,571 +1%
RFC
66
Russell Frank Company
Washington
$123M -$23.2M -89,884 -17%
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
$121M -$2.71M -10,460 -2%
California State Teachers Retirement System (CalSTRS)
68
California State Teachers Retirement System (CalSTRS)
California
$120M +$750K +2,900 +0.7%
Federated Hermes
69
Federated Hermes
Pennsylvania
$118M -$3.29M -12,705 -3%
PPA
70
Parametric Portfolio Associates
Washington
$114M -$1.4M -5,418 -1%
State Board of Administration of Florida Retirement System
71
State Board of Administration of Florida Retirement System
Florida
$112M -$1.35M -5,228 -1%
STC
72
SEI Trust Company
Pennsylvania
$108M +$5.32M +20,557 +6%
Principal Financial Group
73
Principal Financial Group
Iowa
$99.3M -$16.2M -62,514 -15%
NFA
74
Nationwide Fund Advisors
Ohio
$97.4M -$2.53M -9,763 -3%
MTB
75
Mizuho Trust & Banking
Japan
$94.9M +$414K +1,600 +0.5%

BIIB Hedge Fund Activity: Q4 2013 in Review

738 of the 3,446 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q4 2013, worth a combined $60.8B — up 16% from $52.6B a quarter earlier.

Buyers outnumbered sellers: 121 funds opened new BIIB positions and 30 closed out — a net gain of 91 holders — while 247 added to existing stakes and 264 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $213M. The largest seller was JP Morgan Chase, cutting an estimated $493M.

  • 738 institutional investors held Biogen (BIIB) as of Q4 2013, up from 656 in Q3 2013.
  • Funds reported $60.8B of Biogen stock for Q4 2013, up 16% quarter-over-quarter.
  • 121 funds opened new Biogen positions in Q4 2013 and 30 closed out, a net change of +91 holders.
  • The largest Biogen buyer in Q4 2013 was T. Rowe Price Associates, an estimated $213M added.
  • The largest Biogen seller in Q4 2013 was JP Morgan Chase, an estimated $493M sold.

Based on aggregated 13F filings for Q4 2013.