1,100 hedge funds and large institutions have $51.4B invested in Biogen in 2018 Q1 according to their latest regulatory filings, with 94 funds opening new positions, 424 increasing their positions, 416 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

7% less funds holding in top 10

Funds holding in top 10: 2826 (-2)

14% less capital invested

Capital invested by funds: $60B → $51.4B (-$8.57B)

34% less call options, than puts

Call options by funds: $695M | Put options by funds: $1.05B

Holders
1,100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$695M
Puts
$1.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
326
$6.94M
327
$6.9M
328
$6.89M
329
$6.74M
330
$6.66M
331
$6.66M
332
$6.59M
333
$6.58M
334
$6.57M
335
$6.57M
336
$6.55M
337
$6.5M
338
$6.29M
339
$6.23M
340
$6.22M
341
$6.22M
342
$6.21M
343
$6.1M
344
$6.04M
345
$5.98M
346
$5.98M
347
$5.92M
348
$5.87M
349
$5.82M
350
$5.77M