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
76
$29K
77
$28K
78
$28K
79
$27K
80
$26K
81
$25K
82
$25K
83
$24K
84
$21K
85
$20K
86
$18K
87
$18K
88
$17.1K
89
$12K
90
$10K
91
$10K
92
$8K
93
$8K
94
$7K
95
$7K
96
$6K
97
$6K
98
$5K
99
$4K
100
$2K