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1,085 hedge funds and large institutions have $40.8B invested in Biogen in 2019 Q1 according to their latest regulatory filings, with 119 funds opening new positions, 390 increasing their positions, 436 reducing their positions, and 164 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.46% more ownership

Funds ownership: 87.24%87.69% (+0.46%)

5% less funds holding

Funds holding: 1,1411,085 (-56)

10% less call options, than puts

Call options by funds: $1.15B | Put options by funds: $1.28B

11% less repeat investments, than reductions

Existing positions increased: 390 | Existing positions reduced: 436

23% less capital invested

Capital invested by funds: $52.8B → $40.8B (-$12.1B)

24% less funds holding in top 10

Funds holding in top 10: 2922 (-7)

27% less first-time investments, than exits

New positions opened: 119 | Existing positions closed: 164

Holders
1,085
Holders Change
-56
Holders Change %
-4.91%
% of All Funds
23.42%
Holding in Top 10
22
Holding in Top 10 Change
-7
Holding in Top 10 Change %
-24.14%
% of All Funds
0.47%
New
119
Increased
390
Reduced
436
Closed
164
Calls
$1.15B
Puts
$1.28B
Net Calls
-$132M
Net Calls Change
+$215M

BIIB Hedge Fund Activity: Q1 2019 in Review

1,085 of the 4,633 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q1 2019, worth a combined $40.8B — down 23% from $52.8B a quarter earlier.

Sellers outnumbered buyers: 164 funds closed out of BIIB and 119 opened new positions — a net loss of 45 holders — while 436 trimmed existing stakes and 390 added.

The largest buyer was AQR Capital Management, adding an estimated $335M. The largest seller was Ameriprise, cutting an estimated $509M.

  • 1,085 institutional investors held Biogen (BIIB) as of Q1 2019, down from 1,141 in Q4 2018.
  • Funds reported $40.8B of Biogen stock for Q1 2019, down 23% quarter-over-quarter.
  • 119 funds opened new Biogen positions in Q1 2019 and 164 closed out, a net change of -45 holders.
  • The largest Biogen buyer in Q1 2019 was AQR Capital Management, an estimated $335M added.
  • The largest Biogen seller in Q1 2019 was Ameriprise, an estimated $509M sold.

Based on aggregated 13F filings for Q1 2019.