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
51
$117K
52
$113K
53
$107K
54
$97K
55
$90K
56
$88K
57
$85K
58
$75K
59
$75K
60
$73K
61
$72K
62
$66K
63
$61K
64
$57K
65
$54K
66
$52K
67
$51K
68
$49K
69
$47K
70
$41K
71
$40K
72
$38K
73
$37K
74
$33K
75
$31K