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Ribbon Communications
RBBN

Overview Fund Activity

144 hedge funds and large institutions have $509M invested in Ribbon Communications in 2025 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 59 increasing their positions, 35 reducing their positions, and 20 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
144
Holders Change
+1
Holders Change %
+0.7%
% of All Funds
1.93%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
22
Increased
59
Reduced
35
Closed
20
Calls
$926K
Puts
–
Net Calls
+$926K
Net Calls Change
-$40K

Top Buyers

1
Millennium Management
Millennium Management
New York
+$2.35M
2
RA
Royce & Associates
New York
+$2.33M
3
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
+$1.15M
4
Northern Trust
Northern Trust
Illinois
+$770K
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
+$769K

Top Sellers

1
PCMI
Paradigm Capital Management Inc
New York
-$3.06M
2
HIM
Hillsdale Investment Management
Ontario, Canada
-$1.28M
3
Bank of America
Bank of America
North Carolina
-$868K
4
II
Inspire Investing
Idaho
-$756K
5
BCM
Bridgeway Capital Management
Texas
-$698K
Name Holding Trade Value Shares
Change 		Shares
Change %
EGM
101
Engineers Gate Manager
New York
$52.8K +$52.8K +13,176 New
SC
102
Savant Capital
Illinois
$52.1K +$52.1K +12,995 New
OQS
103
Occudo Quantitative Strategies
Florida
$50.3K +$50.3K +12,534 New
Prudential Financial
104
Prudential Financial
New Jersey
$47K +$47K +11,711 New
CWM
105
CIBC World Markets
New York
$46.3K -$35.1K -8,755 -43%
Royal Bank of Canada
106
Royal Bank of Canada
Ontario, Canada
$46K +$22.1K +5,441 +93%
KP
107
Keel Point
Alabama
$44.5K +$44.5K +11,102 New
SFI
108
Susquehanna Fundamental Investments
Pennsylvania
$44.5K – – –
BP
109
Ballentine Partners
Massachusetts
$44.4K +$44.4K +11,076 New
LPL Financial
110
LPL Financial
California
$44.3K +$44.3K +11,041 New
GC
111
Grimes & Company
Massachusetts
$40.2K – – –
TRCT
112
Tower Research Capital (TRC)
New York
$40.2K +$32.9K +8,213 +453%
IWC
113
Integrated Wealth Concepts
Massachusetts
$40.2K +$40.2K +10,022 New
FA
114
Fortis Advisors
Pennsylvania
$40.1K – – –
AIP
115
Ameritas Investment Partners
Nebraska
$34.7K – – –
BNP Paribas Financial Markets
116
BNP Paribas Financial Markets
France
$34.6K -$135K -33,672 -80%
Fifth Third Bancorp
117
Fifth Third Bancorp
Ohio
$26K – – –
Fidelity Investments
118
Fidelity Investments
Massachusetts
$22.4K -$7.01K -1,747 -24%
Comerica Bank
119
Comerica Bank
Texas
$18.3K +$1.78K +443 +11%
Canada Life
120
Canada Life
Manitoba, Canada
$15K – – –
US Bancorp
121
US Bancorp
Minnesota
$14.6K +$4.28K +1,068 +41%
Carson Wealth (CWM LLC)
122
Carson Wealth (CWM LLC)
Nebraska
$14K +$3.32K +835 +31%
AB
123
Amalgamated Bank
New York
$13K – – –
AF
124
Allworth Financial
California
$11.7K +$850 +212 +8%
SCM
125
Sterling Capital Management
North Carolina
$9.84K +$3.5K +873 +55%
3 4
5
6 7