Ribbon Communications Inc.
RBBN- Exchange
- Nasdaq
- Industry
- Services-Computer Integrated Systems Design
- SEC CIK
- 0001708055
No open-market purchases or sales by Ribbon Communications Inc. insiders were filed in the last 90 days; 160 institutions reported holding it in 13F filings for Q2 2026, worth $289.8M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Ribbon Communications Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 144
- +12 vs. Q4 2024
- Shares held
- 127.4M
- +1.71M (+1.4%) vs. Q4 2024
- Total value
- $495.2M
- −$23.2M (−4.5%) vs. Q4 2024
- New holders
- 28
- 44 more added
- Sold out
- 16
- 48 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting RBBN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 160 | $289.8M |
| Q1 2026 | 150 | $268.2M |
| Q4 2025 | 153 | $369.2M |
| Q3 2025 | 153 | $488.6M |
| Q2 2025 | 145 | $508.9M |
| Q1 2025 | 144 | $495.2M |
| Q4 2024 | 133 | $519.8M |
| Q3 2024 | 126 | $402.3M |
| Q2 2024 | 129 | $424.9M |
| Q1 2024 | 132 | $397.7M |
| Q4 2023 | 125 | $372.7M |
| Q3 2023 | 122 | $341.2M |
| Q2 2023 | 127 | $353.2M |
| Q1 2023 | 145 | $422.5M |
| Q4 2022 | 130 | $329.3M |
| Q3 2022 | 129 | $262.9M |
| Q2 2022 | 132 | $306.6M |
| Q1 2022 | 136 | $308.9M |
| Q4 2021 | 129 | $600.0M |
| Q3 2021 | 124 | $580.4M |
| Q2 2021 | 127 | $748.5M |
| Q1 2021 | 146 | $804.7M |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Ribbon Communications Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rhumbline Advisers | 153,183 | $600.5K | 0.00% | −2,511−1.6% | Reduced |
| XTX Topco Ltd | 157,828 | $618.7K | 0.03% | +157,828 | New |
| Voya Investment Management LLC | 167,754 | $657.6K | 0.00% | +51,792+44.7% | Added |
| Bridgeway Capital Management, LLC | 178,000 | $697.8K | 0.02% | +178,000 | New |
| Swiss National Bank | 185,474 | $727.1K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 186,705 | $731.9K | 0.00% | −23,108−11.0% | Reduced |
| Russell Investments Group, Ltd. | 188,436 | $738.7K | 0.00% | +30,328+19.2% | Added |
| CWM Advisors, LLC | 192,780 | $755.7K | 0.09% | −10,078−5.0% | Reduced |
| State of Wisconsin Investment Board | 199,284 | $781.2K | 0.00% | +199,284 | New |
| UBS Group AG | 203,211 | $796.6K | 0.00% | −299,545−59.6% | Reduced |
| AQR Capital Management LLC | 205,287 | $804.7K | 0.00% | +205,287 | New |
| Pacific Ridge Capital Partners, LLC | 235,329 | $922.5K | 0.24% | −1,996−0.8% | Reduced |
| Millennium Management LLC | 245,099 | $960.8K | 0.00% | +233,646+2,040.0% | Added |
| UBS Asset Management Americas Inc | 285,649 | $1.12M | 0.00% | −191,219−40.1% | Reduced |
| Commonwealth Equity Services, LLC | 289,276 | $1.13M | 0.00% | +289,276 | New |
| Silverberg Bernstein Capital Management LLC | 293,583 | $1.15M | 1.07% | −22,527−7.1% | Reduced |
| Raymond James Financial Inc | 295,428 | $1.16M | 0.00% | +295,428 | New |
| Bank of New York Mellon Corp | 319,543 | $1.25M | 0.00% | −8,001−2.4% | Reduced |
| Bank of America Corp | 321,060 | $1.26M | 0.00% | +205,406+177.6% | Added |
| Hillsdale Investment Management Inc. | 326,627 | $1.28M | 0.07% | +326,627 | New |
| Nuveen, LLC | 330,794 | $1.30M | 0.00% | +330,794 | New |
| White Pine Capital LLC | 355,522 | $1.39M | 0.48% | +2,775+0.8% | Added |
| Goldman Sachs Group Inc | 357,340 | $1.40M | 0.00% | −59,291−14.2% | Reduced |
| Morgan Stanley | 392,870 | $1.54M | 0.00% | −50,539−11.4% | Reduced |
| Jacobs Levy Equity Management, Inc | 415,268 | $1.63M | 0.01% | −11,664−2.7% | Reduced |
| D. E. Shaw & Co., Inc. | 416,687 | $1.63M | 0.00% | −52,812−11.2% | Reduced |
| Arrowstreet Capital, Limited Partnership | 556,324 | $2.18M | 0.00% | −33,432−5.7% | Reduced |
| Victory Capital Management Inc | 605,306 | $2.37M | 0.00% | +49,467+8.9% | Added |
| Charles Schwab Investment Management Inc | 747,781 | $2.93M | 0.00% | −12,986−1.7% | Reduced |
| Northern Trust Corp | 806,938 | $3.16M | 0.00% | −21,225−2.6% | Reduced |
| First Eagle Investment Management, LLC | 880,755 | $3.45M | 0.01% | +61,386+7.5% | Added |
| Herald Investment Management Ltd | 912,869 | $3.58M | 0.67% | −210,809−18.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 1,189,250 | $4.66M | 0.02% | +513,985+76.1% | Added |
| Franklin Resources Inc | 1,220,680 | $4.79M | 0.00% | −79,663−6.1% | Reduced |
| First Wilshire Securities Management Inc | 1,337,214 | $5.24M | 1.50% | +2,741+0.2% | Added |
| State Street Corp | 2,002,617 | $7.85M | 0.00% | +15,161+0.8% | Added |
| Geode Capital Management, LLC | 2,133,854 | $8.37M | 0.00% | +37,854+1.8% | Added |
| Royce & Associates LP | 3,092,068 | $12.1M | 0.13% | +289,210+10.3% | Added |
| Dimensional Fund Advisors LP | 6,373,335 | $25.0M | 0.01% | +58,666+0.9% | Added |
| Vanguard Group Inc | 7,457,467 | $29.2M | 0.00% | +55,394+0.7% | Added |
| BlackRock, Inc. | 7,788,905 | $30.5M | 0.00% | −1,5560.0% | Reduced |
| Paradigm Capital Management Inc | 9,511,200 | $37.3M | 2.07% | −627,421−6.2% | Reduced |
| Neuberger Berman Group LLC | 18,311,527 | $67.5M | 0.06% | −152,414−0.8% | Reduced |
| JPMorgan Chase & Co | 52,038,874 | $204.0M | 0.02% | +1,2010.0% | Added |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −318,474−100.0% | Sold out |
| Maxi Investments CY Ltd | 0 | $0 | 0.00% | −195,266−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −132,280−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −50,595−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −24,988−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −21,800−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −18,691−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −14,487−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −10,447−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −10,095−100.0% | Sold out |
| Accredited Investor Services, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −916−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −171−100.0% | Sold out |
| New Wave Wealth Advisors LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −97−100.0% | Sold out |
| Transce3nd, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |