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
376
$1.32M
377
$1.31M
378
$1.3M
379
$1.29M
380
$1.27M
381
$1.26M
382
$1.26M
383
$1.26M
384
$1.25M
385
$1.24M
386
$1.23M
387
$1.22M
388
$1.22M
389
$1.21M
390
$1.19M
391
$1.19M
392
$1.19M
393
$1.19M
394
$1.17M
395
$1.16M
396
$1.16M
397
$1.15M
398
$1.14M
399
$1.14M
400
$1.11M