Ribbon Communications Inc. (NASDAQ:RBBN) has 146 institutional investors with active 13F positions as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| Jpmorgan Chase & Co | 31 Mar, 2026 | 52,043,036 | 5,459 | 0.01% | $107,989,300.00 |
| Neuberger Berman Group LLC | 31 Mar, 2026 | 17,361,988 | -69,114 | -0.40% | $33,200,090.00 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 31 Mar, 2026 | 8,036,335 | -286,963 | -3.45% | $17,037,030.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 6,724,007 | -941,918 | -12.29% | $14,254,896.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 6,351,110 | -124,015 | -1.92% | $13,463,964.00 |
| ROYCE & ASSOCIATES LP | 31 Mar, 2026 | 4,879,741 | 265,000 | 5.74% | $10,345,051.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 4,216,459 | 4,216,459 | 0.00% | $8,938,893.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 3,335,665 | 3,335,665 | 0.00% | $7,071,610.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 2,414,560 | 111,987 | 4.86% | $5,119,979.00 |
| Connor, Clark & Lunn Investment Management Ltd. | 31 Mar, 2026 | 2,089,722 | 93,877 | 4.70% | $4,430,211.00 |
| State Street Corp | 31 Mar, 2026 | 1,910,027 | -189,766 | -9.04% | $4,049,257.00 |
| D. E. Shaw & Co., Inc. | 31 Mar, 2026 | 1,538,472 | 558,631 | 57.01% | $3,261,561.00 |
| ACADIAN ASSET MANAGEMENT LLC | 31 Mar, 2026 | 1,438,490 | 677,325 | 88.99% | $3,043.00 |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 31 Mar, 2026 | 1,407,178 | 139,592 | 11.01% | $2,983,217.00 |
| AQR CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 1,257,347 | 765,876 | 155.83% | $2,665,576.00 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 31 Mar, 2026 | 1,216,876 | 187,160 | 18.18% | $2,579,777.00 |
| MARSHALL WACE, LLP | 31 Mar, 2026 | 769,787 | 596,085 | 343.17% | $1,631,949.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 744,745 | -830,241 | -52.71% | $1,578,860.00 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 31 Mar, 2026 | 708,163 | -60,911 | -7.92% | $1,501,306.00 |
| Northern Trust Corp | 31 Mar, 2026 | 705,858 | -216,696 | -23.49% | $1,496,419.00 |