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
426
$3.76M
427
$3.74M
428
$3.72M
429
$3.68M
430
$3.65M
431
$3.61M
432
$3.56M
433
$3.55M
434
$3.53M
435
$3.53M
436
$3.47M
437
$3.44M
438
$3.38M
439
$3.37M
440
$3.33M
441
$3.29M
442
$3.27M
443
$3.27M
444
$3.22M
445
$3.2M
446
$3.2M
447
$3.17M
448
$3.15M
449
$3.12M
450
$3.1M