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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 %
KK
101
KLP Kapitalforvaltning
Norway
$60.8K – – –
NW
102
NewEdge Wealth
Pennsylvania
$59.3K +$5.2K +1,327 +10%
Creative Planning
103
Creative Planning
Kansas
$58.6K +$58.4K +14,900 +38,205%
Allianz Asset Management
104
Allianz Asset Management
Germany
$56.8K +$56.8K +14,500 New
HBCM
105
Heron Bay Capital Management
Michigan
$50K +$50K +12,764 New
SFI
106
Susquehanna Fundamental Investments
Pennsylvania
$43.5K -$40.1K -10,238 -48%
GC
107
Grimes & Company
Massachusetts
$39.3K – – –
FA
108
Fortis Advisors
Pennsylvania
$39.2K – – –
Zurich Cantonal Bank
109
Zurich Cantonal Bank
Switzerland
$36.4K – – –
AIP
110
Ameritas Investment Partners
Nebraska
$34K – – –
Fidelity Investments
111
Fidelity Investments
Massachusetts
$28.8K +$14K +3,567 +95%
Fifth Third Bancorp
112
Fifth Third Bancorp
Ohio
$25.4K -$25.1K -6,410 -50%
Royal Bank of Canada
113
Royal Bank of Canada
Ontario, Canada
$23K -$22.1K -5,655 -49%
Comerica Bank
114
Comerica Bank
Texas
$16.2K -$733 -187 -4%
Canada Life
115
Canada Life
Manitoba, Canada
$14K – – –
AB
116
Amalgamated Bank
New York
$12K – – –
Carson Wealth (CWM LLC)
117
Carson Wealth (CWM LLC)
Nebraska
$11K +$9.64K +2,357 +708%
US Bancorp
118
US Bancorp
Minnesota
$10.1K -$4.43K -1,130 -30%
UIC
119
Uniplan Investment Counsel
Wisconsin
$9.8K +$9.8K +2,498 New
AF
120
Allworth Financial
California
$9.67K – – –
TRCT
121
Tower Research Capital (TRC)
New York
$7.1K -$4.89K -1,248 -41%
SCM
122
Sterling Capital Management
North Carolina
$6.19K -$5.3K -1,351 -46%
CB
123
Community Bank
New York
$5.49K – – –
ACM
124
Aster Capital Management
United Arab Emirates
$5.36K +$5.36K +1,136 New
PNC Financial Services Group
125
PNC Financial Services Group
Pennsylvania
$4.06K -$20 -5 -0.5%
3 4
5
6 7