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
676
$499K
677
$499K
678
$498K
679
$497K
680
$496K
681
$494K
682
$494K
683
$490K
684
$489K
685
$487K
686
$482K
687
$482K
688
$478K
689
$475K
690
$475K
691
$475K
692
$471K
693
$470K
694
$469K
695
$468K
696
$466K
697
$463K
698
$460K
699
$460K
700
$458K