1,050 hedge funds and large institutions have $37.2B invested in Biogen in 2020 Q3 according to their latest regulatory filings, with 96 funds opening new positions, 309 increasing their positions, 434 reducing their positions, and 93 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

less ownership

Funds ownership:

less funds holding

Funds holding:

7% less call options, than puts

Call options by funds: $1.42B | Put options by funds: $1.53B

14% less funds holding in top 10

Funds holding in top 10: 2118 (-3)

29% less repeat investments, than reductions

Existing positions increased: 309 | Existing positions reduced: 434

Holders
1,050
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
18
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.42B
Puts
$1.53B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
226
$9.8M
227
$9.65M
228
$9.59M
229
$9.45M
230
$9.45M
231
$9.37M
232
$9.36M
233
$9.08M
234
$9.07M
235
$9.03M
236
$9.02M
237
$9M
238
$8.99M
239
$8.89M
240
$8.81M
241
$8.8M
242
$8.79M
243
$8.71M
244
$8.66M
245
$8.64M
246
$8.61M
247
$8.59M
248
$8.28M
249
$8.25M
250
$8.03M