1,102 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 204 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:

2.64% less ownership

Funds ownership: 86.84%84.2% (-2.6%)

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
1,102
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
576
$882K
577
$862K
578
$859K
579
$844K
580
$837K
581
$830K
582
$829K
583
$824K
584
$821K
585
$816K
586
$812K
587
$806K
588
$805K
589
$794K
590
$792K
591
$779K
592
$774K
593
$770K
594
$769K
595
$768K
596
$767K
597
$761K
598
$748K
599
$742K
600
$742K