947 hedge funds and large institutions have $25.8B invested in Biogen in 2022 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 315 increasing their positions, 388 reducing their positions, and 132 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less call options, than puts

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

less funds holding

Funds holding:

12% less capital invested

Capital invested by funds: $29.5B → $25.8B (-$3.68B)

19% less repeat investments, than reductions

Existing positions increased: 315 | Existing positions reduced: 388

37% less first-time investments, than exits

New positions opened: 83 | Existing positions closed: 132

Holders
947
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
12
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$789M
Puts
$798M
Net Calls
Net Calls Change

Top Buyers

1 +$153M
2 +$135M
3 +$128M
4
BlackRock
BlackRock
New York
+$84.1M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$83.6M

Top Sellers

1 -$497M
2 -$109M
3 -$106M
4
Ameriprise
Ameriprise
Minnesota
-$106M
5
Amundi
Amundi
France
-$96.6M
Name Holding Trade Value Shares
Change
Change in
Stake
451
$846K
452
$842K
453
$840K
454
$840K
455
$828K
456
$823K
457
$817K
458
$808K
459
$803K
460
$801K
461
$795K
462
$792K
463
$790K
464
$782K
465
$777K
466
$768K
467
$765K
468
$763K
469
$752K
470
$752K
471
$748K
472
$742K
473
$730K
474
$724K
475
$721K