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
676
$500K
677
$499K
678
$499K
679
$498K
680
$497K
681
$496K
682
$494K
683
$494K
684
$490K
685
$489K
686
$487K
687
$482K
688
$482K
689
$478K
690
$475K
691
$475K
692
$475K
693
$471K
694
$470K
695
$469K
696
$468K
697
$466K
698
$463K
699
$460K
700
$460K