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Ribbon Communications
RBBN

Overview Fund Activity

5 hedge funds and large institutions have $15.9M invested in Ribbon Communications in 2015 Q1 according to their latest regulatory filings, with 0 funds opening new positions, 3 increasing their positions, 1 reducing their positions, and 138 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
5
Holders Change
-138
Holders Change %
-96.5%
% of All Funds
0.13%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
–
Increased
3
Reduced
1
Closed
138
Calls
$2M
Puts
$914K
Net Calls
+$1.09M
Net Calls Change
+$396K

Top Buyers

1
California Public Employees Retirement System
1
California Public Employees Retirement System
California
$2.84M
2
Group One Trading
2
Group One Trading
Illinois
$276K
3
EAM
3
Eagle Asset Management
Florida
$594K

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$0
2
ECM
2
Empire Capital Management
Connecticut
$0
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$0
4
BIT
4
BlackRock Institutional Trust
California
$0
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
CI
126
Cowen Inc
New York
– -$44K -2,200 Closed
HighTower Advisors
127
HighTower Advisors
Illinois
– -$40K -2,028 Closed
PA
128
Pinnacle Associates
New York
– -$40K -2,000 Closed
JPMIA
129
J.P. Marvel Investment Advisors
Massachusetts
– -$40K -2,000 Closed
TRCT
130
Tower Research Capital (TRC)
New York
– -$32K -1,608 Closed
BlackRock
131
BlackRock
New York
– -$27K -1,389 Closed
Teacher Retirement System of Texas
132
Teacher Retirement System of Texas
Texas
– -$27K -1,338 Closed
WA
133
Winfield Associates
Ohio
– -$20K -1,000 Closed
FQ
134
First Quadrant
California
– -$19K -980 Closed
TDC
135
Thompson Davis & Co
Virginia
– -$16K -800 Closed
Royal Bank of Canada
136
Royal Bank of Canada
Ontario, Canada
– -$11K -542 Closed
Parallax Volatility Advisers
137
Parallax Volatility Advisers
California
– -$6K -297 Closed
CG
138
Colony Group
Massachusetts
– -$4K -200 Closed
WT
139
Whittier Trust
California
– -$3K -152 Closed
IPC
140
Independent Portfolio Consultants
Florida
– -$2K -120 Closed
Northwestern Mutual Wealth Management
141
Northwestern Mutual Wealth Management
Wisconsin
– -$2K -105 Closed
GT
142
Glenmede Trust
Pennsylvania
– -$1K -88 Closed
WRM
143
Westport Resources Management
Connecticut
– -$1K -60 Closed
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