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
51
$1.5M
52
$1.5M
53
$1.33M
54
$1.33M
55
$1.32M
56
$1.13M
57
$1.11M
58
$1.08M
59
$1.01M
60
$993K
61
$984K
62
$933K
63
$919K
64
$883K
65
$866K
66
$862K
67
$855K
68
$809K
69
$779K
70
$682K
71
$674K
72
$651K
73
$635K
74
$612K
75
$604K