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
301
$3.78M
302
$3.78M
303
$3.76M
304
$3.75M
305
$3.64M
306
$3.62M
307
$3.61M
308
$3.58M
309
$3.57M
310
$3.54M
311
$3.47M
312
$3.4M
313
$3.38M
314
$3.36M
315
$3.27M
316
$3.24M
317
$3.2M
318
$3.2M
319
$3.2M
320
$3.18M
321
$3.17M
322
$3.17M
323
$3.16M
324
$3.15M
325
$3.15M