BIIB icon

Biogen

999 hedge funds and large institutions have $33.7B invested in Biogen in 2023 Q4 according to their latest regulatory filings, with 133 funds opening new positions, 287 increasing their positions, 374 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding

Funds holding:

more ownership

Funds ownership:

5% more capital invested

Capital invested by funds: $32.1B → $33.7B (+$1.55B)

23% less repeat investments, than reductions

Existing positions increased: 287 | Existing positions reduced: 374

27% less funds holding in top 10

Funds holding in top 10: 1511 (-4)

Holders
999
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
11
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$645M
Puts
$499M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
301
$2.92M
302
$2.9M
303
$2.9M
304
$2.89M
305
$2.89M
306
$2.88M
307
$2.81M
308
$2.76M
309
$2.75M
310
$2.74M
311
$2.71M
312
$2.69M
313
$2.68M
314
$2.68M
315
$2.66M
316
$2.64M
317
$2.63M
318
$2.63M
319
$2.53M
320
$2.46M
321
$2.45M
322
$2.43M
323
$2.38M
324
$2.38M
325
$2.37M