999 hedge funds and large institutions have $34.9B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 89 funds opening new positions, 341 increasing their positions, 363 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more ownership

Funds ownership:

more capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

3% less funds holding

Funds holding: 1,029999 (-30)

12% less first-time investments, than exits

New positions opened: 89 | Existing positions closed: 101

24% less funds holding in top 10

Funds holding in top 10: 2519 (-6)

Holders
999
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
19
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$748M
Puts
$674M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
976
$2.23K
977
$2.23K
978
$2.22K
979
$2.22K
980
$2.22K
981
$2K
982
$1.95K
983
$1.95K
984
$1.95K
985
$1.93K
986
$1.67K
987
$1.39K
988
$1.39K
989
$1.39K
990
$1.11K
991
$1.1K
992
$1K
993
$1K
994
$1K
995
$834
996
$629
997
$557
998
$556
999
$278
1000