996 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 88 funds opening new positions, 341 increasing their positions, 362 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: 1,027996 (-31)

13% less first-time investments, than exits

New positions opened: 88 | Existing positions closed: 101

21% less funds holding in top 10

Funds holding in top 10: 2419 (-5)

Holders
996
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
$744M
Puts
$674M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
451
$1.09M
452
$1.08M
453
$1.08M
454
$1.08M
455
$1.07M
456
$1.06M
457
$1.06M
458
$1.06M
459
$1.06M
460
$1.05M
461
$1.05M
462
$1.03M
463
$1.03M
464
$1.03M
465
$1.02M
466
$1.02M
467
$1.01M
468
$1,000K
469
$986K
470
$980K
471
$970K
472
$963K
473
$963K
474
$962K
475
$961K