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
326
$3.15M
327
$3.14M
328
$3.09M
329
$3.08M
330
$3.04M
331
$3.03M
332
$3.03M
333
$3.01M
334
$2.94M
335
$2.9M
336
$2.88M
337
$2.87M
338
$2.86M
339
$2.85M
340
$2.82M
341
$2.81M
342
$2.79M
343
$2.78M
344
$2.73M
345
$2.7M
346
$2.68M
347
$2.68M
348
$2.59M
349
$2.58M
350
$2.58M