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 2026
Institutional positions in Ribbon Communications Inc. as of Mar 31, 2026. 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
- 150
- +2 vs. Q4 2025
- Shares held
- 129.3M
- +7.49M (+6.2%) vs. Q4 2025
- Total value
- $268.2M
- −$78.4M (−22.6%) vs. Q4 2025
- New holders
- 37
- 51 more added
- Sold out
- 35
- 43 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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 2026
Shares, value and share of portfolio for each institution holding Ribbon Communications Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 52,043,036 | $108.0M | 0.01% | +5,4590.0% | Added |
| Neuberger Berman Group LLC | 17,361,988 | $33.2M | 0.03% | −69,114−0.4% | Reduced |
| Paradigm Capital Management Inc | 8,036,335 | $17.0M | 0.65% | −286,963−3.4% | Reduced |
| BlackRock, Inc. | 6,724,007 | $14.3M | 0.00% | −941,918−12.3% | Reduced |
| Dimensional Fund Advisors LP | 6,351,110 | $13.5M | 0.00% | −124,015−1.9% | Reduced |
| Royce & Associates LP | 4,879,741 | $10.3M | 0.10% | +265,000+5.7% | Added |
| Vanguard Capital Management LLC | 4,216,459 | $8.94M | 0.00% | +4,216,459 | New |
| Vanguard Portfolio Management LLC | 3,335,665 | $7.07M | 0.00% | +3,335,665 | New |
| Geode Capital Management, LLC | 2,414,560 | $5.12M | 0.00% | +111,987+4.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 2,089,722 | $4.43M | 0.01% | +93,877+4.7% | Added |
| State Street Corp | 1,910,027 | $4.05M | 0.00% | −189,766−9.0% | Reduced |
| D. E. Shaw & Co., Inc. | 1,538,472 | $3.26M | 0.00% | +558,631+57.0% | Added |
| Acadian Asset Management LLC | 1,438,490 | $3.04M | 0.00% | +677,325+89.0% | Added |
| First Wilshire Securities Management Inc | 1,407,178 | $2.98M | 0.67% | +139,592+11.0% | Added |
| AQR Capital Management LLC | 1,257,347 | $2.67M | 0.00% | +765,876+155.8% | Added |
| Arrowstreet Capital, Limited Partnership | 1,216,876 | $2.58M | 0.00% | +187,160+18.2% | Added |
| Marshall Wace, LLP | 769,787 | $1.63M | 0.00% | +596,085+343.2% | Added |
| Goldman Sachs Group Inc | 744,745 | $1.58M | 0.00% | −42,748−5.4% | Reduced |
| Charles Schwab Investment Management Inc | 708,163 | $1.50M | 0.00% | −60,911−7.9% | Reduced |
| Northern Trust Corp | 705,858 | $1.50M | 0.00% | −216,696−23.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 685,310 | $1.45M | 0.01% | −204,858−23.0% | Reduced |
| Vanguard Fiduciary Trust Co | 587,429 | $1.25M | 0.00% | +587,429 | New |
| Citadel Advisors LLC | 574,989 | $1.22M | 0.00% | +521,086+966.7% | Added |
| Millennium Management LLC | 491,320 | $1.04M | 0.00% | +437,014+804.7% | Added |
| Silverberg Bernstein Capital Management LLC | 438,123 | $928.8K | 0.51% | +2,100+0.5% | Added |
| Morgan Stanley | 423,465 | $897.7K | 0.00% | +31,074+7.9% | Added |
| Victory Capital Management Inc | 422,351 | $895.4K | 0.00% | +72,808+20.8% | Added |
| Bank of New York Mellon Corp | 377,364 | $800.0K | 0.00% | −12,630−3.2% | Reduced |
| Russell Investments Group, Ltd. | 351,873 | $746.0K | 0.00% | +264,341+302.0% | Added |
| Gsa Capital Partners LLP | 292,756 | $621.0K | 0.04% | +5,173+1.8% | Added |
| Commonwealth Equity Services, LLC | 284,723 | $603.6K | 0.00% | −210.0% | Reduced |
| Pacific Ridge Capital Partners, LLC | 246,176 | $521.9K | 0.11% | +470.0% | Added |
| American Century Companies Inc | 212,363 | $450.2K | 0.00% | −1,583−0.7% | Reduced |
| Bank of America Corp | 208,230 | $441.4K | 0.00% | +60,541+41.0% | Added |
| Voya Investment Management LLC | 207,699 | $440.3K | 0.00% | +58,139+38.9% | Added |
| OP Asset Management Ltd | 206,802 | $438.4K | 0.00% | +206,802 | New |
| ExodusPoint Capital Management, LP | 196,908 | $417.4K | 0.00% | −1,283−0.6% | Reduced |
| UBS Group AG | 192,850 | $408.8K | 0.00% | +1,480+0.8% | Added |
| Invesco Ltd. | 181,843 | $385.5K | 0.00% | +12,928+7.7% | Added |
| Nuveen, LLC | 177,201 | $375.7K | 0.00% | +966+0.5% | Added |
| Alliancebernstein L.P. | 120,149 | $346.0K | 0.00% | +899+0.8% | Added |
| XTX Topco Ltd | 160,942 | $341.2K | 0.01% | +58,057+56.4% | Added |
| EntryPoint Capital, LLC | 140,304 | $297.4K | 0.09% | +15,731+12.6% | Added |
| Engineers Gate Manager LP | 139,962 | $296.7K | 0.00% | +84,482+152.3% | Added |
| LSV Asset Management | 135,800 | $288.0K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 128,405 | $272.2K | 0.00% | +118+0.1% | Added |
| Vanguard Global Advisers, LLC | 126,258 | $267.7K | 0.00% | +126,258 | New |
| Franklin Resources Inc | 108,769 | $230.6K | 0.00% | +37,565+52.8% | Added |
| Ameriprise Financial Inc | 107,484 | $227.9K | 0.00% | −21,491−16.7% | Reduced |
| Barclays PLC | 101,833 | $215.9K | 0.00% | −100,628−49.7% | Reduced |
| Herald Investment Management Ltd | 100,000 | $212.0K | 0.03% | −700,000−87.5% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 93,190 | $197.6K | 0.00% | −16,702−15.2% | Reduced |
| Bridgeway Capital Management, LLC | 88,231 | $187.1K | 0.00% | +88,231 | New |
| Empowered Funds, LLC | 88,231 | $187.1K | 0.00% | +88,231 | New |
| SEI Investments Co | 81,706 | $173.2K | 0.00% | −58,341−41.7% | Reduced |
| Price T Rowe Associates Inc | 69,822 | $149.0K | 0.00% | 00.0% | Unchanged |
| Creative Planning | 64,892 | $137.6K | 0.00% | +64,892 | New |
| Public Employees Retirement System of Ohio | 60,645 | $128.6K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 59,495 | $126.1K | 0.02% | −31,531−34.6% | Reduced |
| State of Wyoming | 54,933 | $116.5K | 0.01% | +54,933 | New |
| Susquehanna Fundamental Investments, LLC | 54,537 | $115.6K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 52,231 | $110.7K | 0.00% | +52,231 | New |
| Vident Advisory, LLC | 50,192 | $106.4K | 0.00% | +50,192 | New |
| Winton Group Ltd | 50,115 | $106.2K | 0.00% | +17,020+51.4% | Added |
| Prelude Capital Management, LLC | 49,038 | $104.0K | 0.01% | +8,300+20.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 44,653 | $94.7K | 0.00% | +1,076+2.5% | Added |
| MetLife Investment Management | 39,460 | $83.7K | 0.00% | +2,141+5.7% | Added |
| Assenagon Asset Management S.A. | 37,927 | $80.4K | 0.00% | −2,428−6.0% | Reduced |
| State Board of Administration of Florida Retirement System | 37,543 | $79.6K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 37,438 | $79.4K | 0.00% | −73,360−66.2% | Reduced |
| Citigroup Inc | 36,567 | $77.5K | 0.00% | +3,227+9.7% | Added |
| SG Americas Securities, LLC | 32,161 | $68.0K | 0.00% | −9,376−22.6% | Reduced |
| Polymer Capital Management (US) LLC | 31,877 | $67.6K | 0.01% | +31,877 | New |
| Colony Group, LLC | 31,412 | $66.6K | 0.00% | −3,688−10.5% | Reduced |
| Manufacturers Life Insurance Company, The | 27,704 | $58.7K | 0.00% | −3,582−11.4% | Reduced |
| Envestnet Asset Management Inc | 26,477 | $56.1K | 0.00% | −237−0.9% | Reduced |
| Abacus Wealth Partners, LLC | 26,091 | $55.3K | 0.01% | +26,091 | New |
| Virtu Financial LLC | 25,706 | $54.0K | 0.00% | +25,706 | New |
| Deutsche Bank AG | 25,382 | $53.8K | 0.00% | −60,285−70.4% | Reduced |
| State of Alaska, Department of Revenue | 25,390 | $53.0K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 24,692 | $52.3K | 0.00% | 00.0% | Unchanged |
| Essex Financial Services, Inc. | 24,661 | $52.3K | 0.00% | +143+0.6% | Added |
| Mariner, LLC | 23,093 | $49.0K | 0.00% | +23,093 | New |
| Two Sigma Securities, LLC | 22,964 | $48.7K | 0.01% | −7,782−25.3% | Reduced |
| New York State Common Retirement Fund | 22,549 | $47.8K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 21,940 | $46.5K | 0.00% | −5,147−19.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 21,784 | $46.2K | 0.00% | +21,784 | New |
| Vista Investment Partners LLC | 20,400 | $43.2K | 0.01% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 20,036 | $42.5K | 0.00% | +328+1.7% | Added |
| Jones Financial Companies LLLP | 19,118 | $40.7K | 0.00% | +1,850+10.7% | Added |
| Ironwood Investment Management LLC | 18,066 | $38.3K | 0.02% | −284−1.5% | Reduced |
| STRS Ohio | 17,600 | $37.3K | 0.00% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 16,260 | $34.5K | 0.00% | +16,260 | New |
| NewEdge Wealth, LLC | 16,260 | $34.5K | 0.00% | +16,260 | New |
| Seven Mile Advisory | 15,976 | $33.9K | 0.02% | +15,976 | New |
| LPL Financial LLC | 15,601 | $33.1K | 0.00% | +1,689+12.1% | Added |
| Trilogy Capital Inc. | 15,360 | $32.6K | 0.00% | −50,000−76.5% | Reduced |
| Prudential Financial Inc | 14,638 | $31.0K | 0.00% | +14,638 | New |
| Nine Masts Capital Ltd | 14,377 | $30.5K | 0.00% | +14,377 | New |
| Ieq Capital, LLC | 14,129 | $30.0K | 0.00% | +14,129 | New |