981 hedge funds and large institutions have $32.7B invested in Biogen in 2022 Q3 according to their latest regulatory filings, with 150 funds opening new positions, 275 increasing their positions, 369 reducing their positions, and 79 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 capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.2% more ownership

Funds ownership: 82.74%84.95% (+2.2%)

8% more call options, than puts

Call options by funds: $2.02B | Put options by funds: $1.87B

25% less repeat investments, than reductions

Existing positions increased: 275 | Existing positions reduced: 369

Holders
981
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
21
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.02B
Puts
$1.87B
Net Calls
Net Calls Change

Top Buyers

1 +$326M
2 +$179M
3 +$134M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$120M
5
Millennium Management
Millennium Management
New York
+$88.4M

Top Sellers

1 -$307M
2 -$165M
3 -$106M
4
Renaissance Technologies
Renaissance Technologies
New York
-$105M
5
HM
HealthCor Management
New York
-$91.8M
Name Holding Trade Value Shares
Change
Change in
Stake
876
$21K
877
$21K
878
$20K
879
$20K
880
$20K
881
$20K
882
$20K
883
$19K
884
$19K
885
$19K
886
$18.7K
887
$18K
888
$18K
889
$18K
890
$17K
891
$17K
892
$17K
893
$17K
894
$17K
895
$16K
896
$16K
897
$16K
898
$15K
899
$15K
900
$15K