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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 %
JPMorgan Chase & Co
1
JPMorgan Chase & Co
New York
$209M 52,037,577 -1,297 -0%
Neuberger Berman Group
2
Neuberger Berman Group
New York
$69.2M 18,461,960 +150,433 +0.8%
PCMI
3
Paradigm Capital Management Inc
New York
$35.1M 8,748,200 -763,000 -8%
BlackRock
4
BlackRock
New York
$31M 7,738,835 -50,070 -0.6%
Vanguard Group
5
Vanguard Group
Pennsylvania
$30.2M 7,524,387 +66,920 +0.9%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$26.3M 6,565,166 +191,831 +3%
RA
7
Royce & Associates
New York
$14.7M 3,672,435 +580,367 +19%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$9.24M 2,303,256 +169,402 +8%
State Street
9
State Street
Massachusetts
$8.39M 2,092,819 +90,202 +5%
Connor, Clark & Lunn Investment Management (CC&L)
10
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$5.92M 1,476,053 +286,803 +24%
FWSM
11
First Wilshire Securities Management
California
$5.34M 1,331,200 -6,014 -0.4%
Franklin Resources
12
Franklin Resources
California
$4.37M 1,090,798 -129,882 -11%
First Eagle Investment Management
13
First Eagle Investment Management
New York
$4.11M 1,025,914 +145,159 +16%
Northern Trust
14
Northern Trust
Illinois
$4.01M 998,939 +192,001 +24%
HIM
15
Herald Investment Management
United Kingdom
$3.66M 912,869 – –
Millennium Management
16
Millennium Management
New York
$3.33M 830,148 +585,049 +239%
Charles Schwab
17
Charles Schwab
California
$3.07M 766,198 +18,417 +2%
Victory Capital Management
18
Victory Capital Management
Texas
$1.97M 491,177 -114,129 -19%
Arrowstreet Capital
19
Arrowstreet Capital
Massachusetts
$1.94M 483,170 -73,154 -13%
Jacobs Levy Equity Management
20
Jacobs Levy Equity Management
New Jersey
$1.73M 432,097 +16,829 +4%
WPC
21
White Pine Capital
Minnesota
$1.68M 418,957 +63,435 +18%
D.E. Shaw & Co
22
D.E. Shaw & Co
New York
$1.67M 416,687 – –
SBCM
23
Silverberg Bernstein Capital Management
New York
$1.57M 392,579 +98,996 +34%
UBS AM
24
UBS AM
Illinois
$1.49M 370,850 +85,201 +30%
Raymond James Financial
25
Raymond James Financial
Florida
$1.4M 348,642 +53,214 +18%
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