1,100 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 203 funds opening new positions, 272 increasing their positions, 469 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.67% less ownership

Funds ownership: 86.83%84.16% (-2.7%)

30% less call options, than puts

Call options by funds: $1.27B | Put options by funds: $1.82B

42% less repeat investments, than reductions

Existing positions increased: 272 | Existing positions reduced: 469

Holders
1,100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.27B
Puts
$1.82B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
401
$2.97M
402
$2.94M
403
$2.91M
404
$2.86M
405
$2.81M
406
$2.8M
407
$2.79M
408
$2.77M
409
$2.75M
410
$2.72M
411
$2.71M
412
$2.68M
413
$2.61M
414
$2.56M
415
$2.55M
416
$2.55M
417
$2.54M
418
$2.54M
419
$2.5M
420
$2.47M
421
$2.46M
422
$2.46M
423
$2.46M
424
$2.45M
425
$2.43M