144 hedge funds and large institutions have $1.03B invested in Rambus in 2015 Q3 according to their latest regulatory filings, with 32 funds opening new positions, 45 increasing their positions, 40 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
144
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$10.5M
Puts
$8.39M
Net Calls
Net Calls Change

Top Buyers

1 +$26.6M
2 +$18.1M
3 +$15.7M
4
Primecap Management
Primecap Management
California
+$11.7M
5
Goldman Sachs
Goldman Sachs
New York
+$8.76M

Top Sellers

1 -$31.1M
2 -$24M
3 -$21.4M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$15.3M
5
Ameriprise
Ameriprise
Minnesota
-$5.07M
Name Holding Trade Value Shares
Change
Change in
Stake
76
$601K
77
$596K
78
$537K
79
$509K
80
$488K
81
$410K
82
$370K
83
$360K
84
$350K
85
$348K
86
$346K
87
$340K
88
$336K
89
$299K
90
$289K
91
$284K
92
$272K
93
$259K
94
$244K
95
$238K
96
$236K
97
$213K
98
$189K
99
$188K
100
$173K