1,102 hedge funds and large institutions have $43.4B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 135 funds opening new positions, 324 increasing their positions, 467 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

0.17% less ownership

Funds ownership: 83.86%83.69% (-0.17%)

6% less call options, than puts

Call options by funds: $1.8B | Put options by funds: $1.91B

31% less repeat investments, than reductions

Existing positions increased: 324 | Existing positions reduced: 467

Holders
1,102
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
27
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.8B
Puts
$1.91B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
376
$3.27M
377
$3.26M
378
$3.19M
379
$3.16M
380
$3.08M
381
$3.07M
382
$3.06M
383
$3.04M
384
$3.02M
385
$3.01M
386
$3M
387
$2.96M
388
$2.93M
389
$2.91M
390
$2.89M
391
$2.89M
392
$2.86M
393
$2.81M
394
$2.81M
395
$2.76M
396
$2.74M
397
$2.72M
398
$2.7M
399
$2.7M
400
$2.7M