Ribbon Communications Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:RBBN Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
09 Apr 25	BuyUS$51	JPMorgan Chase Bank, N.A.	Company		14	US$3.67
13 Sep 24	SellUS$17,602	Beatriz Infante	Individual		5,790	US$3.04

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of RBBN?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	4,317,329	2.46%
General Public	16,917,424	9.63%
VC/PE Firms	27,435,739	15.6%
Private Companies	52,036,572	29.6%
Institutions	75,017,020	42.7%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 84.63% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
29.6%	JPMorgan Chase Bank, N.A.	52,036,572	US$183.7m	0.03%	no data
15.6%	Swarth Investments L.L.C.	27,435,739	US$96.8m	0%	no data
10.5%	Neuberger Berman Investment Advisers LLC	18,463,941	US$65.2m	-0.4%	0.05%
5.77%	Paradigm Capital Management, Inc.	10,138,621	US$35.8m	-4.29%	2.07%
4.43%	BlackRock, Inc.	7,790,461	US$27.5m	1.42%	no data
4.21%	The Vanguard Group, Inc.	7,402,073	US$26.1m	4.16%	no data
3.59%	Dimensional Fund Advisors LP	6,314,669	US$22.3m	5.02%	no data
1.6%	Royce & Associates, LP	2,802,858	US$9.9m	10.5%	0.1%
1.19%	Geode Capital Management, LLC	2,096,000	US$7.4m	-0.26%	no data
1.13%	State Street Global Advisors, Inc.	1,987,456	US$7.0m	4.67%	no data
0.76%	First Wilshire Securities Management, Inc.	1,334,473	US$4.7m	14.1%	1.4%
0.74%	Putnam LLC	1,296,698	US$4.6m	-12.3%	no data
0.74%	Bruce McClelland	1,293,463	US$4.6m	-0.71%	no data
0.64%	Herald Investment Management Ltd.	1,123,678	US$4.0m	-20.6%	0.29%
0.56%	UBS Asset Management AG	979,624	US$3.5m	86.5%	no data
0.47%	Northern Trust Global Investments	828,163	US$2.9m	7.32%	no data
0.47%	First Eagle Investment Management, LLC	819,369	US$2.9m	1,050%	no data
0.43%	Charles Schwab Investment Management, Inc.	760,767	US$2.7m	0%	no data
0.39%	Bruns Grayson	681,439	US$2.4m	1.2%	no data
0.38%	Connor, Clark & Lunn Investment Management Ltd.	675,265	US$2.4m	62.2%	0.01%
0.34%	Arrowstreet Capital, Limited Partnership	589,756	US$2.1m	-14.5%	no data
0.32%	Victory Capital Management Inc.	555,839	US$2.0m	10.2%	no data
0.27%	D. E. Shaw & Co., L.P.	469,499	US$1.7m	22.1%	no data
0.24%	Jacobs Levy Equity Management Inc	426,932	US$1.5m	4.29%	0.01%
0.23%	Miguel A. Lopez Ben	406,908	US$1.4m	-10.9%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/04/17 06:01
End of Day Share Price	2025/04/17 00:00
Earnings	2024/12/31
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Ribbon Communications Inc. is covered by 31 analysts. 5 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Kenneth Muth	Baird
Ted Moreau	Barrington Research Associates, Inc.
Alexander Paris	Barrington Research Associates, Inc.