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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 %
Simplex Trading
126
Simplex Trading
Illinois
$4K +$4K +1,193 New
QCG
127
Quadrant Capital Group
Ohio
$3.65K +$525 +134 +17%
Nisa Investment Advisors
128
Nisa Investment Advisors
Missouri
$1.64K +$984 +251 +151%
RIL
129
Rothschild Investment LLC
Illinois
$1.08K – – –
Osaic Holdings
130
Osaic Holdings
Arizona
$1.04K +$51 +13 +5%
AAP
131
Arax Advisory Partners
Colorado
$930 -$1.89K -481 -67%
Amundi
132
Amundi
France
$803 +$803 +228 New
MCA
133
Maryland Capital Advisors
Maryland
$784 +$784 +200 New
CCM
134
Coldstream Capital Management
Washington
$675 +$675 +172 New
PFBT
135
Parkside Financial Bank & Trust
Missouri
$569 +$569 +145 New
EWA
136
EverSource Wealth Advisors
Alabama
$502 +$259 +66 +106%
LFG
137
Larson Financial Group
Missouri
$365 +$365 +93 New
CA
138
CoreCap Advisors
Michigan
$314 – – –
LC
139
Lindbrook Capital
California
$274 – – –
TWD
140
True Wealth Design
Ohio
$130 +$130 +33 New
TFM
141
TFC Financial Management
Massachusetts
$48 – – –
IA
142
IFP Advisors
Florida
$39 +$23 +6 +150%
AT
143
Arlington Trust
Alabama
$24 – – –
Federated Hermes
144
Federated Hermes
Pennsylvania
– -$1.32M -318,474 Closed
MIC
145
Maxi Investments CY
Cyprus
– -$812K -195,266 Closed
Citadel Advisors
146
Citadel Advisors
Florida
– -$550K -132,280 Closed
PAM
147
Panagora Asset Management
Massachusetts
– -$210K -50,595 Closed
I
148
InceptionR
California
– -$104K -24,988 Closed
Two Sigma Advisers
149
Two Sigma Advisers
New York
– -$90.7K -21,800 Closed
EGM
150
Engineers Gate Manager
New York
– -$77.8K -18,691 Closed
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