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Rambus
RMBS

Overview Fund Activity

148 hedge funds and large institutions have $1.03B invested in Rambus in 2015 Q4 according to their latest regulatory filings, with 33 funds opening new positions, 50 increasing their positions, 38 reducing their positions, and 29 closing their positions.

Holders
148
Holders Change
+4
Holders Change %
+2.78%
% of All Funds
3.89%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
33
Increased
50
Reduced
38
Closed
29
Calls
$36.2M
Puts
$25.4M
Net Calls
+$10.8M
Net Calls Change
+$8.63M

Top Buyers

1
BFA
1
BlackRock Fund Advisors
California
$84.9M
2
Morgan Stanley
2
Morgan Stanley
New York
$19.6M
3
Bank of New York Mellon
3
Bank of New York Mellon
New York
$19.3M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$103M
5
Principal Financial Group
5
Principal Financial Group
Iowa
$9.17M

Top Sellers

1
Lord, Abbett & Co
1
Lord, Abbett & Co
New Jersey
$0
2
RIM
2
Ranger Investment Management
Texas
$0
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$91.6M
4
Millennium Management
4
Millennium Management
New York
$0
5
Goldman Sachs
5
Goldman Sachs
New York
$619K
Name Market Value Shares Shares
Change 		Shares
Change %
HP
151
Hosking Partners
United Kingdom
– – -127,118 Closed
TC
152
TFS Capital
Pennsylvania
– – -111,893 Closed
SFM
153
Soros Fund Management
New York
– – -93,900 Closed
HCM
154
Highbridge Capital Management
New York
– – -77,864 Closed
Arrowstreet Capital
155
Arrowstreet Capital
Massachusetts
– – -73,400 Closed
PP
156
PDT Partners
New York
– – -66,002 Closed
VKH
157
Virtu KCG Holdings
New York
– – -57,767 Closed
Squarepoint
158
Squarepoint
New York
– – -57,100 Closed
HIP
159
Hatteras Investment Partners
North Carolina
– – -53,800 Closed
OAC
160
OMERS Administration Corp
Ontario, Canada
– – -51,200 Closed
PCM
161
Piermont Capital Management
Missouri
– – -45,470 Closed
CSS
162
Cubist Systematic Strategies
Connecticut
– – -43,148 Closed
ST
163
Spot Trading
Illinois
– – -41,397 Closed
MF
164
Magnetar Financial
Illinois
– – -34,724 Closed
SG Americas Securities
165
SG Americas Securities
New York
– – -29,359 Closed
SCA
166
Secor Capital Advisors
New York
– – -28,806 Closed
Tudor Investment Corp
167
Tudor Investment Corp
Connecticut
– – -28,513 Closed
EMG
168
Ellington Management Group
Connecticut
– – -25,300 Closed
JG
169
Jefferies Group
New York
– – -14,003 Closed
RCM
170
Rotella Capital Management
Washington
– – -13,800 Closed
TRCT
171
Tower Research Capital (TRC)
New York
$0 11 -8,210 -100%
PG
172
PEAK6 Group
Illinois
– – -5,647 Closed
MFS
173
MSI Financial Services
Massachusetts
– – -1,500 Closed
Walleye Trading
174
Walleye Trading
New York
– – -345 Closed
KF
175
Krilogy Financial
Missouri
– – -200 Closed
4 5 6
7
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