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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, 1 increasing their positions, 3 reducing their positions, and 138 closing their positions.

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
1
Reduced
3
Closed
138
Calls
$2M
Puts
$914K
Net Calls
+$1.09M
Net Calls Change
+$396K

Top Buyers

1
Group One Trading
1
Group One Trading
Illinois
$276K

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
Luther King Capital Management (LKCM)
4
Luther King Capital Management (LKCM)
Texas
$7.49M
5
BIT
5
BlackRock Institutional Trust
California
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Luther King Capital Management (LKCM)
1
Luther King Capital Management (LKCM)
Texas
$7.49M 950,723 -6,315,018 -87%
CS
2
Central Securities
New York
$4.73M 600,000 -2,400,000 -80%
California Public Employees Retirement System
3
California Public Employees Retirement System
California
$2.84M 752,702 – –
EAM
4
Eagle Asset Management
Florida
$594K 75,444 -236,546 -76%
Group One Trading
5
Group One Trading
Illinois
$276K 34,972 +8,118 +30%
Wellington Management Group
6
Wellington Management Group
Massachusetts
– – -21,805,948 Closed
ECM
7
Empire Capital Management
Connecticut
– – -14,575,000 Closed
Vanguard Group
8
Vanguard Group
Pennsylvania
– – -14,336,466 Closed
BIT
9
BlackRock Institutional Trust
California
– – -8,209,219 Closed
Dimensional Fund Advisors
10
Dimensional Fund Advisors
Texas
– – -7,103,822 Closed
T. Rowe Price Associates
11
T. Rowe Price Associates
Maryland
– – -6,862,490 Closed
ClearBridge Investments
12
ClearBridge Investments
New York
– – -6,504,691 Closed
BFA
13
BlackRock Fund Advisors
California
– – -6,197,296 Closed
Capital World Investors
14
Capital World Investors
California
– – -5,000,000 Closed
First Trust Advisors
15
First Trust Advisors
Illinois
– – -4,729,536 Closed
Bank of New York Mellon
16
Bank of New York Mellon
New York
– – -4,386,235 Closed
State Street
17
State Street
Massachusetts
– – -4,208,818 Closed
CCM
18
Century Capital Management
Massachusetts
– – -3,718,953 Closed
BA
19
BlackRock Advisors
Delaware
– – -2,757,548 Closed
Northern Trust
20
Northern Trust
Illinois
– – -2,735,175 Closed
Norges Bank
21
Norges Bank
Norway
– – -2,272,032 Closed
IIM
22
Ironwood Investment Management
Massachusetts
– – -2,116,488 Closed
Ameriprise
23
Ameriprise
Minnesota
– – -2,095,816 Closed
RCAMU
24
Rothschild & Co Asset Management US
Connecticut
– – -2,042,843 Closed
TA
25
Teachers Advisors
New York
– – -1,838,593 Closed
1
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