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
401
$4.44M
402
$4.4M
403
$4.38M
404
$4.36M
405
$4.36M
406
$4.35M
407
$4.32M
408
$4.14M
409
$4.12M
410
$4.11M
411
$4.09M
412
$4.04M
413
$4.04M
414
$4.03M
415
$3.98M
416
$3.98M
417
$3.98M
418
$3.95M
419
$3.89M
420
$3.87M
421
$3.86M
422
$3.85M
423
$3.83M
424
$3.81M
425
$3.8M