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970 hedge funds and large institutions have $59.1B invested in Biogen in 2015 Q4 according to their latest regulatory filings, with 139 funds opening new positions, 331 increasing their positions, 371 reducing their positions, and 82 closing their positions.

New
Increased
Maintained
Reduced
Closed

70% more first-time investments, than exits

New positions opened: 139 | Existing positions closed: 82

5% more funds holding

Funds holding: 924970 (+46)

1% more capital invested

Capital invested by funds: $58.6B → $59.1B (+$451M)

0% more funds holding in top 10

Funds holding in top 10: 3737 (0)

11% less repeat investments, than reductions

Existing positions increased: 331 | Existing positions reduced: 371

24% less call options, than puts

Call options by funds: $1.24B | Put options by funds: $1.63B

Holders
970
Holders Change
+46
Holders Change %
+4.98%
% of All Funds
25.37%
Holding in Top 10
37
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.97%
New
139
Increased
331
Reduced
371
Closed
82
Calls
$1.24B
Puts
$1.63B
Net Calls
-$397M
Net Calls Change
+$181M

BIIB Hedge Fund Activity: Q4 2015 in Review

970 of the 3,824 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q4 2015, worth a combined $59.1B — up 0.77% from $58.6B a quarter earlier.

Buyers outnumbered sellers: 139 funds opened new BIIB positions and 82 closed out — a net gain of 57 holders — while 331 added to existing stakes and 371 trimmed.

The largest buyer was D.E. Shaw & Co, adding an estimated $429M. The largest seller was Fidelity Investments, cutting an estimated $1.05B.

  • 970 institutional investors held Biogen (BIIB) as of Q4 2015, up from 924 in Q3 2015.
  • Funds reported $59.1B of Biogen stock for Q4 2015, up 0.77% quarter-over-quarter.
  • 139 funds opened new Biogen positions in Q4 2015 and 82 closed out, a net change of +57 holders.
  • The largest Biogen buyer in Q4 2015 was D.E. Shaw & Co, an estimated $429M added.
  • The largest Biogen seller in Q4 2015 was Fidelity Investments, an estimated $1.05B sold.

Based on aggregated 13F filings for Q4 2015.