Ribbon Communications Inc
Ownership
Ownership Structure
Who owns Ribbon Communications Inc (RBBN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 51.6% of the shares are freely tradable; institutional investors hold 74.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| JPMorgan Chase & Co | 29.10 | 52,042,936 | +0.0 | 06/30/2026 |
| Neuberger Berman Group LLC | 10.24 | 18,311,073 | +5.5 | 06/30/2026 |
| BlackRock Inc | 4.00 | 7,146,590 | +6.3 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 3.52 | 6,286,323 | -1.0 | 06/30/2026 |
| Royce & Associates, LP | 2.85 | 5,090,927 | +4.3 | 06/30/2026 |
| Vanguard Capital Management, LLC | 2.20 | 3,925,626 | -6.9 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 1.96 | 3,513,067 | +5.3 | 06/30/2026 |
| Paradigm Capital Management, Inc. | 1.70 | 3,036,398 | -62.2 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Neuberger Intrinsic Value I | 2.34 | 4,179,246 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.57 | 2,800,400 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| McClelland Bruce William | President & CEO | 2,969,454 | 4,751,126 $ | Oct 30, 2026 | direct |
| Grayson Bruns H | Director | 859,446 | 1,375,114 $ | Oct 15, 2026 | direct |
| Marmurek Eric S | EVP, Chief Financial Officer | 566,450 | 906,320 $ | Oct 15, 2026 | direct |
| Shani Shaul | Director | 438,553 | 701,685 $ | Oct 15, 2026 | direct |
| McCaffery Stephen J. | EVP, Global Sales | 163,526 | 261,642 $ | Oct 31, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 31, 2026 | McCaffery Stephen J. | EVP, Global Sales | Other | 50,762 | 1.55 | 78,681 |
| Oct 31, 2026 | McCaffery Stephen J. | EVP, Global Sales | Other | 108,006 | – | – |
| Oct 31, 2026 | McCaffery Stephen J. | EVP, Global Sales | Other | 16,921 | 1.55 | 26,228 |
| Oct 31, 2026 | McCaffery Stephen J. | EVP, Global Sales | Other | 36,003 | – | – |
| Oct 30, 2026 | McClelland Bruce William | President & CEO | Buy | 60,000 | 1.60 | 96,240 |
| Oct 15, 2026 | Marmurek Eric S | EVP, Chief Financial Officer | Other | 14,756 | 1.46 | 21,544 |
| Oct 15, 2026 | Marmurek Eric S | EVP, Chief Financial Officer | Other | 37,500 | – | – |
| Oct 15, 2026 | Grayson Bruns H | Director | Other | 19,176 | – | – |
| Oct 15, 2026 | Shani Shaul | Director | Other | 185,210 | – | – |
| Oct 15, 2026 | Shani Shaul | Director | Other | 15,625 | – | – |
| Jul 15, 2026 | Grayson Bruns H | Director | Other | 14,423 | – | – |
| Jul 15, 2026 | Shani Shaul | Director | Other | 11,752 | – | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.