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Ribbon Communications
RBBN

Overview Fund Activity

132 hedge funds and large institutions have $455M invested in Ribbon Communications in 2013 Q2 according to their latest regulatory filings, with 132 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

Holders
132
Holders Change
+132
Holders Change %
–
% of All Funds
4.31%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.03%
New
132
Increased
–
Reduced
–
Closed
–
Calls
$4.68M
Puts
$131K
Net Calls
+$4.55M
Net Calls Change
+$4.55M

Top Buyers

1
ECM
1
Empire Capital Management
Connecticut
$116M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$46M
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$37M
4
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$22.5M
5
BIT
5
BlackRock Institutional Trust
California
$22.3M

Top Sellers

No sellers this quarter
Name Market Value Shares Shares
Change 		Shares
Change %
ECM
1
Empire Capital Management
Connecticut
$116M 38,595,000 +38,595,000 New
Vanguard Group
2
Vanguard Group
Pennsylvania
$46M 15,283,456 +15,283,456 New
Fidelity Investments
3
Fidelity Investments
Massachusetts
$37M 12,303,467 +12,303,467 New
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$22.5M 7,478,059 +7,478,059 New
BIT
5
BlackRock Institutional Trust
California
$22.3M 7,402,806 +7,402,806 New
T. Rowe Price Associates
6
T. Rowe Price Associates
Maryland
$21.1M 7,013,760 +7,013,760 New
BFA
7
BlackRock Fund Advisors
California
$15.1M 5,015,806 +5,015,806 New
CCI
8
Columbus Circle Investors
$14M 4,655,929 +4,655,929 New
State Street
9
State Street
Massachusetts
$11.9M 3,946,973 +3,946,973 New
First Trust Advisors
10
First Trust Advisors
Illinois
$10.9M 3,630,903 +3,630,903 New
Northern Trust
11
Northern Trust
Illinois
$9.48M 3,150,550 +3,150,550 New
CS
12
Central Securities
New York
$9.03M 3,000,000 +3,000,000 New
SCA
13
SAC Capital Advisors
Connecticut
$8.82M 2,930,728 +2,930,728 New
CAM
14
Contour Asset Management
New York
$7.47M 2,480,000 +2,480,000 New
Norges Bank
15
Norges Bank
Norway
$7.35M 2,440,106 +2,440,106 New
CAM
16
Cortina Asset Management
Wisconsin
$6.62M 2,199,216 +2,199,216 New
IIM
17
Ironwood Investment Management
Massachusetts
$6.55M 2,175,254 +2,175,254 New
MCM
18
Montibus Capital Management
Oregon
$6.3M 2,091,878 +2,091,878 New
Bank of New York Mellon
19
Bank of New York Mellon
New York
$4.3M 1,429,846 +1,429,846 New
CM
20
Castleark Management
Illinois
$3.94M 1,310,300 +1,310,300 New
KCM
21
Kennedy Capital Management
Missouri
$3.74M 1,242,324 +1,242,324 New
Geode Capital Management
22
Geode Capital Management
Massachusetts
$3.59M 1,190,966 +1,190,966 New
CCM
23
Cupps Capital Management
Illinois
$3.36M 1,116,917 +1,116,917 New
Deutsche Bank
24
Deutsche Bank
Germany
$3.27M 1,086,377 +1,086,377 New
TCIM
25
TIAA CREF Investment Management
New York
$3.13M 1,040,745 +1,040,745 New
1
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