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Ribbon Communications
RBBN

Overview Fund Activity

123 hedge funds and large institutions have $665M invested in Ribbon Communications in 2017 Q4 according to their latest regulatory filings, with 119 funds opening new positions, 2 increasing their positions, 2 reducing their positions, and closing their positions.

Holders
123
Holders Change
+119
Holders Change %
+2,975%
% of All Funds
2.79%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
119
Increased
2
Reduced
2
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$391M
2
First Trust Advisors
2
First Trust Advisors
Illinois
$31.6M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$24.9M
4
BlackRock
4
BlackRock
New York
$24.6M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$24.6M

Top Sellers

1
RhumbLine Advisers
1
RhumbLine Advisers
Massachusetts
$379K
2
PCMI
2
Paradigm Capital Management Inc
New York
$186K
Name Market Value Shares Shares
Change 		Shares
Change %
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$391M 50,579,553 +50,579,553 New
First Trust Advisors
2
First Trust Advisors
Illinois
$31.6M 4,086,840 +4,086,840 New
Vanguard Group
3
Vanguard Group
Pennsylvania
$24.9M 3,220,520 +3,220,520 New
BlackRock
4
BlackRock
New York
$24.6M 3,182,253 +3,182,253 New
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$24.6M 3,179,335 +3,179,335 New
Neuberger Berman Group
6
Neuberger Berman Group
New York
$18.1M 2,343,003 +2,343,003 New
Renaissance Technologies
7
Renaissance Technologies
New York
$13.5M 1,744,600 +1,744,600 New
Capital Research Global Investors
8
Capital Research Global Investors
California
$10.8M 1,395,540 +1,395,540 New
CS
9
Central Securities
New York
$9.4M 1,215,500 +1,215,500 New
D.E. Shaw & Co
10
D.E. Shaw & Co
New York
$8.63M 1,116,822 +1,116,822 New
State Street
11
State Street
Massachusetts
$7.29M 942,585 +942,585 New
AQR Capital Management
12
AQR Capital Management
Connecticut
$6.63M 857,611 +857,611 New
RA
13
Royce & Associates
New York
$5.29M 684,347 +684,347 New
Boston Partners
14
Boston Partners
Massachusetts
$5.26M 680,140 +680,140 New
Russell Investments Group
15
Russell Investments Group
United Kingdom
$5.17M 656,709 +656,709 New
CPA
16
Cowen Prime Advisors
New York
$4.4M 568,932 +568,932 New
Northern Trust
17
Northern Trust
Illinois
$4.14M 535,631 +535,631 New
AIM
18
Alambic Investment Management
California
$3.96M 512,575 +512,575 New
Luther King Capital Management (LKCM)
19
Luther King Capital Management (LKCM)
Texas
$3.72M 481,301 +481,301 New
Geode Capital Management
20
Geode Capital Management
Massachusetts
$3.63M 469,164 +469,164 New
Invesco
21
Invesco
Georgia
$3.58M 462,510 +462,510 New
HRCM
22
Hawk Ridge Capital Management
California
$3.39M 438,667 +438,667 New
ECM
23
Engine Capital Management
New York
$3.38M 436,894 +436,894 New
Bank of New York Mellon
24
Bank of New York Mellon
New York
$2.78M 359,926 +359,926 New
HCM
25
Horrell Capital Management
Arkansas
$2.44M 315,800 +315,800 New
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