1,027 hedge funds and large institutions have $34.1B invested in Biogen in 2022 Q4 according to their latest regulatory filings, with 159 funds opening new positions, 323 increasing their positions, 360 reducing their positions, and 96 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 funds holding

Funds holding:

more ownership

Funds ownership:

4% more capital invested

Capital invested by funds: $32.7B → $34.1B (+$1.4B)

10% less repeat investments, than reductions

Existing positions increased: 323 | Existing positions reduced: 360

14% less call options, than puts

Call options by funds: $1.29B | Put options by funds: $1.51B

Holders
1,027
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.29B
Puts
$1.51B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
451
$1.29M
452
$1.28M
453
$1.27M
454
$1.27M
455
$1.25M
456
$1.23M
457
$1.23M
458
$1.22M
459
$1.22M
460
$1.22M
461
$1.21M
462
$1.21M
463
$1.21M
464
$1.18M
465
$1.18M
466
$1.16M
467
$1.16M
468
$1.13M
469
$1.13M
470
$1.13M
471
$1.12M
472
$1.12M
473
$1.12M
474
$1.11M
475
$1.11M