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Ribbon Communications
RBBN

Overview Fund Activity

143 hedge funds and large institutions have $495M invested in Ribbon Communications in 2025 Q1 according to their latest regulatory filings, with 28 funds opening new positions, 44 increasing their positions, 48 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
143
Holders Change
+11
Holders Change %
+8.33%
% of All Funds
1.94%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
28
Increased
44
Reduced
48
Closed
16
Calls
$999K
Puts
$33K
Net Calls
+$966K
Net Calls Change
-$173K

Top Buyers

1
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
+$2.01M
2
HIM
Hillsdale Investment Management
Ontario, Canada
+$1.28M
3
Raymond James Financial
Raymond James Financial
Florida
+$1.16M
4
Commonwealth Equity Services
Commonwealth Equity Services
Massachusetts
+$1.13M
5
RA
Royce & Associates
New York
+$1.13M

Top Sellers

1
PCMI
Paradigm Capital Management Inc
New York
-$2.46M
2
Federated Hermes
Federated Hermes
Pennsylvania
-$1.32M
3
UBS Group
UBS Group
Switzerland
-$1.17M
4
HIM
Herald Investment Management
United Kingdom
-$826K
5
MIC
Maxi Investments CY
Cyprus
-$812K
Name Holding Trade Value Shares
Change 		Shares
Change %
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$204M +$4.71K +1,201 +0%
Neuberger Berman Group
2
Neuberger Berman Group
New York
$67.5M -$562K -152,414 -0.8%
PCMI
3
Paradigm Capital Management Inc
New York
$37.3M -$2.46M -627,421 -6%
BlackRock
4
BlackRock
New York
$30.5M -$6.1K -1,556 -0%
Vanguard Group
5
Vanguard Group
Pennsylvania
$29.2M +$217K +55,394 +0.7%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$25M +$230K +58,666 +0.9%
RA
7
Royce & Associates
New York
$12.1M +$1.13M +289,210 +10%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$8.37M +$148K +37,854 +2%
State Street
9
State Street
Massachusetts
$7.85M +$59.4K +15,161 +0.8%
FWSM
10
First Wilshire Securities Management
California
$5.24M +$10.7K +2,741 +0.2%
Franklin Resources
11
Franklin Resources
California
$4.79M -$312K -79,663 -6%
Connor, Clark & Lunn Investment Management (CC&L)
12
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$4.66M +$2.01M +513,985 +76%
HIM
13
Herald Investment Management
United Kingdom
$3.58M -$826K -210,809 -19%
First Eagle Investment Management
14
First Eagle Investment Management
New York
$3.45M +$241K +61,386 +7%
Northern Trust
15
Northern Trust
Illinois
$3.16M -$83.2K -21,225 -3%
Charles Schwab
16
Charles Schwab
California
$2.93M -$50.9K -12,986 -2%
Victory Capital Management
17
Victory Capital Management
Texas
$2.37M +$194K +49,467 +9%
Arrowstreet Capital
18
Arrowstreet Capital
Massachusetts
$2.18M -$131K -33,432 -6%
D.E. Shaw & Co
19
D.E. Shaw & Co
New York
$1.63M -$207K -52,812 -11%
Jacobs Levy Equity Management
20
Jacobs Levy Equity Management
New Jersey
$1.63M -$45.7K -11,664 -3%
Morgan Stanley
21
Morgan Stanley
New York
$1.54M -$198K -50,539 -11%
Goldman Sachs
22
Goldman Sachs
New York
$1.4M -$232K -59,291 -14%
WPC
23
White Pine Capital
Minnesota
$1.39M +$10.9K +2,775 +0.8%
NL
24
Nuveen LLC
North Carolina
$1.3M +$1.3M +330,794 New
HIM
25
Hillsdale Investment Management
Ontario, Canada
$1.28M +$1.28M +326,627 New
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