1,099 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 202 funds opening new positions, 272 increasing their positions, 469 reducing their positions, and 69 closing their positions.

Holders
1,099
Holders Change
+113
Holders Change %
+11.46%
% of All Funds
21.7%
Holding in Top 10
31
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+82.35%
% of All Funds
0.61%
New
202
Increased
272
Reduced
469
Closed
69
Calls
$1.27B
Puts
$1.82B
Net Calls
-$553M
Net Calls Change
-$242M
Name Market Value Shares Shares
Change
Shares
Change %
IMC Chicago
1176
IMC Chicago
Illinois
SSG
1177
Summit Securities Group
New York
SM
1178
Sabby Management
Florida
NPGCU
1179
Napier Park Global Capital (US)
New York