Institutional shares held 131 Million
186K calls
0 puts
Total value of holdings $532M
$755K calls
$0 puts
Market Cap $680M
167,532,000 Shares Out.
Institutional ownership 78.18%
# of Institutions 156


Latest Institutional Activity in RBBN

Top Purchases

Q2 2025
Millennium Management LLC Shares Held: 830K ($3.37M)
Q2 2025
Royce & Associates LP Shares Held: 3.67M ($14.9M)
Q2 2025
Connor, Clark & Lunn Investment Management Ltd. Shares Held: 1.48M ($5.99M)
Q2 2025
Northern Trust Corp Shares Held: 999K ($4.06M)
Q2 2025
Dimensional Fund Advisors LP Shares Held: 6.57M ($26.7M)

Top Sells

Q2 2025
Paradigm Capital Management Inc Shares Held: 8.75M ($35.5M)
Q2 2025
Bank Of America Corp Shares Held: 105K ($425K)
Q2 2025
Morgan Stanley Shares Held: 257K ($1.04M)
Q2 2025
Franklin Resources Inc Shares Held: 1.09M ($4.43M)
Q2 2025
Renaissance Technologies LLC Shares Held: 27.5K ($112K)

About RBBN

Ribbon Communications Inc. provides communications technology in the United States, Europe, the Middle East, Africa, the Asia Pacific, and internationally. It operates through two segments, Cloud and Edge, and IP Optical Networks. The Cloud and Edge segment provides software and hardware products; and solutions and services for enabling voice over internet protocol communications, voice over long-term evolution, and voice over 5G communications and unified communications and collaboration. It also offers session border controller and network transformation products. This segment serves private, public, or hybrid cloud infrastructures, as well as data centers, enterprise premises, and service provider networks. It also provides multiple solutions for VoIP, VoLTE, VoNR, and UC&C in network, on-premises, or via the telco cloud. The IP Optical Networks segment provides hardware and software solutions for IP networking, switching, routing, and optical transport to support and enable technologies, such as 5G, distributed cloud computing, and corresponding applications. It also offers multiple solutions, including 5G-native solutions for mobile-backhaul, metro and edge aggregation, core networking, data center interconnect, legacy NTR, and transport solutions for wholesale carriers. This segment serves utilities, government, defense, finance, transportation, and education and research industries, as well as service providers and enterprises. It also provides advanced analytics solutions and next generation products that provides cloud-native and streaming analytics platform for networks and subscribers. The company was formerly known as Sonus Networks, Inc. and changed its name to Ribbon Communications Inc. in November 2017. Ribbon Communications Inc. was founded in 1997 and is headquartered in Plano, Texas.


Insider Transactions at RBBN

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
1.43M Shares
From 14 Insiders
Grant, award, or other acquisition 35.5K shares
Exercise of conversion of derivative security 1.4M shares
Open market or private purchase 14 shares
Sell / Disposition
478K Shares
From 8 Insiders
Open market or private sale 5.8K shares
Payment of exercise price or tax liability 472K shares

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