1,027 hedge funds and large institutions have $34.1B invested in Biogen in 2022 Q4 according to their latest regulatory filings, with 159 funds opening new positions, 323 increasing their positions, 360 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

more ownership

Funds ownership:

4% more capital invested

Capital invested by funds: $32.7B → $34.1B (+$1.4B)

10% less repeat investments, than reductions

Existing positions increased: 323 | Existing positions reduced: 360

14% less call options, than puts

Call options by funds: $1.29B | Put options by funds: $1.51B

Holders
1,027
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.29B
Puts
$1.51B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
251
$7.05M
252
$6.99M
253
$6.94M
254
$6.93M
255
$6.87M
256
$6.81M
257
$6.74M
258
$6.66M
259
$6.53M
260
$6.44M
261
$6.43M
262
$6.42M
263
$6.42M
264
$6.41M
265
$6.39M
266
$6.19M
267
$6.12M
268
$6.09M
269
$5.94M
270
$5.94M
271
$5.92M
272
$5.92M
273
$5.77M
274
$5.71M
275
$5.54M