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Ribbon Communications
RBBN

Overview Fund Activity

102 hedge funds and large institutions have $597M invested in Ribbon Communications in 2018 Q2 according to their latest regulatory filings, with 10 funds opening new positions, 33 increasing their positions, 35 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
102
Holders Change
-19
Holders Change %
-15.7%
% of All Funds
2.34%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.02%
New
10
Increased
33
Reduced
35
Closed
29
Calls
$67K
Puts
–
Net Calls
+$67K
Net Calls Change
+$67K

Top Buyers

1
PCMI
1
Paradigm Capital Management Inc
New York
$7.73M
2
BlackRock
2
BlackRock
New York
$25.2M
3
RA
3
Royce & Associates
New York
$12.3M
4
MAG
4
Millrace Asset Group
Pennsylvania
$2.23M
5
Vanguard Group
5
Vanguard Group
Pennsylvania
$23.9M

Top Sellers

1
Capital Research Global Investors
1
Capital Research Global Investors
California
$0
2
AIM
2
Alambic Investment Management
California
$0
3
Goldman Sachs
3
Goldman Sachs
New York
$855K
4
Invesco
4
Invesco
Georgia
$557K
5
Millennium Management
5
Millennium Management
New York
$3M
Name Holding Trade Value Shares
Change 		Shares
Change %
Luther King Capital Management (LKCM)
101
Luther King Capital Management (LKCM)
Texas
– -$1.29M -252,200 Closed
Arrowstreet Capital
102
Arrowstreet Capital
Massachusetts
– -$1.13M -221,148 Closed
SIM
103
Spark Investment Management
New York
– -$731K -143,400 Closed
ZIM
104
Zacks Investment Management
Illinois
– -$516K -101,084 Closed
TEE
105
Tibra Equities Europe
United Kingdom
– -$512K -100,410 Closed
EGM
106
Engineers Gate Manager
New York
– -$314K -61,656 Closed
PP
107
Paloma Partners
Connecticut
– -$223K -43,878 Closed
FQ
108
First Quadrant
California
– -$223K -43,804 Closed
HF
109
HRT Financial
New York
– -$165K -32,400 Closed
Jane Street
110
Jane Street
New York
– -$141K -27,669 Closed
FRM
111
Fox Run Management
Connecticut
– -$126K -24,751 Closed
SG Americas Securities
112
SG Americas Securities
New York
– -$116K -22,793 Closed
CSS
113
Cubist Systematic Strategies
Connecticut
– -$95K -18,664 Closed
CCIA
114
Campbell & Co Investment Adviser
Maryland
– -$72K -14,100 Closed
ACI
115
AMP Capital Investors
Australia
– -$71K -14,008 Closed
HCM
116
Highbridge Capital Management
New York
– -$61K -11,906 Closed
Pacer Advisors
117
Pacer Advisors
Pennsylvania
– -$51K -10,068 Closed
OSNBOA
118
Old Second National Bank of Aurora
Illinois
– -$51K -10,000 Closed
MLICM
119
Metropolitan Life Insurance Company (MetLife)
New York
– -$50.3K -9,870 Closed
Group One Trading
120
Group One Trading
Illinois
– -$34K -6,591 Closed
MIM
121
MetLife Investment Management
New Jersey
– -$17K -3,429 Closed
PCM
122
Prelude Capital Management
New York
– -$11K -2,080 Closed
QT
123
Quantbot Technologies
New York
– -$3K -693 Closed
WAM
124
Wealthspire Advisors (Maryland)
Maryland
– -$3K -540 Closed
SWP
125
Stratos Wealth Partners
Ohio
– -$2K -400 Closed
2 3 4
5
6