Ribbon Communications Inc (RBBN)
Who owns Ribbon Communications Inc (RBBN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 51.0% of the shares are freely tradable; institutional investors hold 74.8%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| JPMorgan Chase & Co | 29.55 | 52,043,036 | +0.0 | 03/31/2026 |
| Neuberger Berman Group LLC | 9.86 | 17,361,988 | -0.4 | 03/31/2026 |
| Paradigm Capital Management, Inc. | 4.56 | 8,036,335 | -3.4 | 03/31/2026 |
| Vanguard Group Inc | 4.45 | 7,833,009 | +1.8 | 12/31/2025 |
| BlackRock Inc | 3.82 | 6,724,007 | -12.3 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 3.61 | 6,351,110 | -1.9 | 03/31/2026 |
| Royce & Associates, LP | 2.77 | 4,879,741 | +5.7 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.39 | 4,216,459 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 1.89 | 3,335,665 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Neuberger Intrinsic Value I | 2.37 | 4,182,453 | +0.0 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 15. Jul 2026 | Grayson Bruns H | Director | Other | 14,423 | – | – |
| 15. Jul 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: July 31, 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.