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Ribbon Communications
RBBN

Overview Fund Activity

143 hedge funds and large institutions have $508M invested in Ribbon Communications in 2025 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 58 increasing their positions, 35 reducing their positions, and 20 closing their positions.

Holders
143
Holders Change
–
Holders Change %
0%
% of All Funds
1.92%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
22
Increased
58
Reduced
35
Closed
20
Calls
$818K
Puts
–
Net Calls
+$818K
Net Calls Change
-$148K

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$3.33M
2
RA
2
Royce & Associates
New York
$14.7M
3
Connor, Clark & Lunn Investment Management (CC&L)
3
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$5.92M
4
Northern Trust
4
Northern Trust
Illinois
$4.01M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$26.3M

Top Sellers

1
PCMI
1
Paradigm Capital Management Inc
New York
$35.1M
2
HIM
2
Hillsdale Investment Management
Ontario, Canada
$0
3
Bank of America
3
Bank of America
North Carolina
$420K
4
II
4
Inspire Investing
Idaho
$0
5
BCM
5
Bridgeway Capital Management
Texas
$0
Name Market Value Shares Shares
Change 		Shares
Change %
SC
101
Savant Capital
Illinois
$52.1K 12,995 +12,995 New
OQS
102
Occudo Quantitative Strategies
Florida
$50.3K 12,534 +12,534 New
Prudential Financial
103
Prudential Financial
New Jersey
$47K 11,711 +11,711 New
CWM
104
CIBC World Markets
New York
$46.3K 11,558 -8,755 -43%
Royal Bank of Canada
105
Royal Bank of Canada
Ontario, Canada
$46K 11,318 +5,441 +93%
KP
106
Keel Point
Alabama
$44.5K 11,102 +11,102 New
SFI
107
Susquehanna Fundamental Investments
Pennsylvania
$44.5K 11,100 – –
BP
108
Ballentine Partners
Massachusetts
$44.4K 11,076 +11,076 New
LPL Financial
109
LPL Financial
California
$44.3K 11,041 +11,041 New
GC
110
Grimes & Company
Massachusetts
$40.2K 10,030 – –
TRCT
111
Tower Research Capital (TRC)
New York
$40.2K 10,025 +8,213 +453%
IWC
112
Integrated Wealth Concepts
Massachusetts
$40.2K 10,022 +10,022 New
FA
113
Fortis Advisors
Pennsylvania
$40.1K 10,000 – –
AIP
114
Ameritas Investment Partners
Nebraska
$34.7K 8,663 – –
BNP Paribas Financial Markets
115
BNP Paribas Financial Markets
France
$34.6K 8,632 -33,672 -80%
Fifth Third Bancorp
116
Fifth Third Bancorp
Ohio
$26K 6,477 – –
Fidelity Investments
117
Fidelity Investments
Massachusetts
$22.4K 5,591 -1,747 -24%
Comerica Bank
118
Comerica Bank
Texas
$18.3K 4,563 +443 +11%
Canada Life
119
Canada Life
Manitoba, Canada
$15K 3,680 – –
US Bancorp
120
US Bancorp
Minnesota
$14.6K 3,651 +1,068 +41%
Carson Wealth (CWM LLC)
121
Carson Wealth (CWM LLC)
Nebraska
$14K 3,525 +835 +31%
AB
122
Amalgamated Bank
New York
$13K 3,119 – –
AF
123
Allworth Financial
California
$11.7K 2,913 +212 +8%
SCM
124
Sterling Capital Management
North Carolina
$9.84K 2,453 +873 +55%
BNP Paribas Asset Management
125
BNP Paribas Asset Management
France
$9K 2,362 +2,362 New
3 4
5
6 7