111 hedge funds and large institutions have $126M invested in Geron in 2016 Q4 according to their latest regulatory filings, with 7 funds opening new positions, 39 increasing their positions, 31 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
111
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.11M
Puts
$1.36M
Net Calls
Net Calls Change

Top Buyers

1 +$1.66M
2 +$1.56M
3 +$934K
4
Citigroup
Citigroup
New York
+$749K
5
Millennium Management
Millennium Management
New York
+$638K

Top Sellers

1 -$1.17M
2 -$886K
3 -$724K
4
SIM
Spark Investment Management
New York
-$377K
5
Citadel Advisors
Citadel Advisors
Florida
-$369K
Name Holding Trade Value Shares
Change
Change in
Stake
101
$2K
102
$2K
103
$2K
104
$2K
105
$1K
106
$1K
107
$1K
108
$1K
109
$1K
110
$780
111
112
113
114
115
116
117
118
119
120
121
122
123