946 hedge funds and large institutions have $27.8B invested in Biogen in 2024 Q1 according to their latest regulatory filings, with 102 funds opening new positions, 300 increasing their positions, 353 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

less call options, than puts

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

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

17% less capital invested

Capital invested by funds: $33.5B → $27.8B (-$5.74B)

20% less funds holding in top 10

Funds holding in top 10: 108 (-2)

29% less first-time investments, than exits

New positions opened: 102 | Existing positions closed: 144

Holders
946
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$301M
Puts
$303M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
351
$1.62M
352
$1.62M
353
$1.61M
354
$1.6M
355
$1.58M
356
$1.55M
357
$1.55M
358
$1.55M
359
$1.55M
360
$1.54M
361
$1.52M
362
$1.52M
363
$1.5M
364
$1.5M
365
$1.46M
366
$1.41M
367
$1.4M
368
$1.38M
369
$1.38M
370
$1.37M
371
$1.36M
372
$1.36M
373
$1.35M
374
$1.34M
375
$1.33M