Institutional Ownership
Ribbon Communications Inc
CUSIP 762544104COMRBBNQ1 2026
13D / 13G Filings
13
Schedule 13D/13G on record
Beneficial Filers
5
Distinct reporting persons
Largest Stake
45.0%
Max % of class reported
Institutional Holders
143
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
13 filings · latest Aug 14, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Aug 14, 2025 | Paradigm Capital Management Inc/Ny | 13G/A | 5.0% | 8.75M | SEC |
| 2 | Feb 12, 2024 | Neuberger Berman Group LLC | 13G/A | 10.2% | 17.50M | SEC |
| 3 | Feb 12, 2024 | Neuberger Berman Group LLC | 13G/A | 9.7% | 16.60M | SEC |
| 4 | Feb 13, 2023 | Paradigm Capital Management Inc/Ny | 13G/A | 3.9% | 6.58M | SEC |
| 5 | Feb 10, 2023 | Neuberger Berman Group LLC | 13G | 8.1% | 13.54M | SEC |
| 6 | Aug 18, 2022 | Swarth Investments Ltd. | 13D/A | 16.4% | 27.44M | SEC |
| 7 | Aug 16, 2022 | Jpmorgan Chase & Co | 13D/A | 30.8% | 51.59M | SEC |
| 8 | Feb 7, 2022 | Paradigm Capital Management Inc/Ny | 13G/A | 5.7% | 8.48M | SEC |
| 9 | Feb 10, 2021 | Paradigm Capital Management Inc/Ny | 13G/A | 5.8% | 8.38M | SEC |
| 10 | May 5, 2020 | Jpmorgan Chase & Co | 13D/A | 34.5% | 49.94M | SEC |
3 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Ribbon Communications Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Jpmorgan Chase & Co | 52.04M | $107.99M |
| 2 | Neuberger Berman Group LLC | 17.36M | $33.20M |
| 3 | Paradigm Capital Management Inc/Ny | 8.04M | $17.04M |
| 4 | Blackrock, Inc. | 6.72M | $14.25M |
| 5 | Dimensional Fund Advisors LP | 6.35M | $13.46M |
| 6 | Royce & Associates LP | 4.88M | $10.35M |
| 7 | Geode Capital Management, LLC | 2.41M | $5.12M |
| 8 | Connor, Clark & Lunn Investment Management Ltd. | 2.09M | $4.43M |
| 9 | State Street Corp | 1.91M | $4.05M |
| 10 | D. E. Shaw & Co., Inc. | 1.54M | $3.26M |