1,009 hedge funds and large institutions have $37.6B invested in Biogen in 2019 Q2 according to their latest regulatory filings, with 84 funds opening new positions, 316 increasing their positions, 451 reducing their positions, and 142 closing their positions.

New
Increased
Maintained
Reduced
Closed

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

less call options, than puts

Call options by funds: $ | Put options by funds: $

27% less funds holding in top 10

Funds holding in top 10: 2216 (-6)

30% less repeat investments, than reductions

Existing positions increased: 316 | Existing positions reduced: 451

41% less first-time investments, than exits

New positions opened: 84 | Existing positions closed: 142

Holders
1,009
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$883M
Puts
$1.2B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
376
$2.62M
377
$2.62M
378
$2.62M
379
$2.61M
380
$2.6M
381
$2.59M
382
$2.57M
383
$2.56M
384
$2.55M
385
$2.49M
386
$2.49M
387
$2.46M
388
$2.45M
389
$2.42M
390
$2.39M
391
$2.38M
392
$2.38M
393
$2.37M
394
$2.36M
395
$2.36M
396
$2.35M
397
$2.35M
398
$2.35M
399
$2.34M
400
$2.34M