187 hedge funds and large institutions have $665M invested in Rambus in 2018 Q4 according to their latest regulatory filings, with 38 funds opening new positions, 66 increasing their positions, 50 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
187
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
$3.74M
Puts
$1.85M
Net Calls
Net Calls Change

Top Buyers

1 +$11M
2 +$7.27M
3 +$3M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$2.91M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$2.55M

Top Sellers

1 -$15.6M
2 -$7.18M
3 -$6.9M
4
Man Group
Man Group
United Kingdom
-$3.48M
5
Deutsche Bank
Deutsche Bank
Germany
-$3.2M
Name Holding Trade Value Shares
Change
Change in
Stake
76
$603K
77
$591K
78
$579K
79
$564K
80
$562K
81
$545K
82
$511K
83
$455K
84
$401K
85
$383K
86
$373K
87
$372K
88
$370K
89
$354K
90
$344K
91
$336K
92
$328K
93
$318K
94
$316K
95
$312K
96
$285K
97
$278K
98
$277K
99
$277K
100
$274K