1,101 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, 470 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: 86.84%84.17% (-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: 470

Holders
1,101
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
376
$3.47M
377
$3.47M
378
$3.45M
379
$3.44M
380
$3.42M
381
$3.4M
382
$3.4M
383
$3.34M
384
$3.32M
385
$3.32M
386
$3.3M
387
$3.29M
388
$3.27M
389
$3.24M
390
$3.19M
391
$3.17M
392
$3.16M
393
$3.13M
394
$3.07M
395
$3.03M
396
$3.03M
397
$3.02M
398
$3.02M
399
$2.98M
400
$2.98M