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, Q4 2025
Institutional positions in Ribbon Communications Inc. as of Dec 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
- 153
- +1 vs. Q3 2025
- Shares held
- 129.7M
- +49.9K (0.0%) vs. Q3 2025
- Total value
- $369.2M
- −$118.4M (−24.3%) vs. Q3 2025
- New holders
- 25
- 56 more added
- Sold out
- 24
- 51 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Ribbon Communications Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 52,037,577 | $149.9M | 0.01% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 17,431,102 | $46.0M | 0.03% | −822,943−4.5% | Reduced |
| Paradigm Capital Management Inc | 8,323,298 | $24.0M | 1.01% | −425,902−4.9% | Reduced |
| Vanguard Group Inc | 7,833,009 | $22.6M | 0.00% | +141,939+1.8% | Added |
| BlackRock, Inc. | 7,665,925 | $22.1M | 0.00% | −32,880−0.4% | Reduced |
| Dimensional Fund Advisors LP | 6,475,125 | $18.6M | 0.00% | −70,410−1.1% | Reduced |
| Royce & Associates LP | 4,614,741 | $13.3M | 0.13% | +309,271+7.2% | Added |
| Geode Capital Management, LLC | 2,302,573 | $6.63M | 0.00% | −7,878−0.3% | Reduced |
| State Street Corp | 2,099,793 | $6.05M | 0.00% | +5,280+0.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 1,995,845 | $5.75M | 0.02% | +130,676+7.0% | Added |
| First Wilshire Securities Management Inc | 1,267,586 | $3.65M | 0.92% | −37,772−2.9% | Reduced |
| Arrowstreet Capital, Limited Partnership | 1,029,716 | $2.97M | 0.00% | +65,270+6.8% | Added |
| D. E. Shaw & Co., Inc. | 979,841 | $2.82M | 0.00% | +390,949+66.4% | Added |
| Northern Trust Corp | 922,554 | $2.66M | 0.00% | −75,557−7.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 890,168 | $2.56M | 0.01% | +418,967+88.9% | Added |
| First Eagle Investment Management, LLC | 862,528 | $2.48M | 0.00% | −171,386−16.6% | Reduced |
| Herald Investment Management Ltd | 800,000 | $2.30M | 0.30% | −112,869−12.4% | Reduced |
| Goldman Sachs Group Inc | 787,493 | $2.27M | 0.00% | +363,334+85.7% | Added |
| Charles Schwab Investment Management Inc | 769,074 | $2.21M | 0.00% | −413−0.1% | Reduced |
| Acadian Asset Management LLC | 761,165 | $2.19M | 0.00% | +726,573+2,100.4% | Added |
| Kennedy Capital Management, Inc. | 710,703 | $2.05M | 0.04% | +710,703 | New |
| AQR Capital Management LLC | 491,471 | $1.42M | 0.00% | +322,364+190.6% | Added |
| Silverberg Bernstein Capital Management LLC | 436,023 | $1.26M | 0.73% | +8,044+1.9% | Added |
| Morgan Stanley | 392,391 | $1.13M | 0.00% | −112,293−22.3% | Reduced |
| Bank of New York Mellon Corp | 389,994 | $1.12M | 0.00% | +54,243+16.2% | Added |
| Jane Street Group, LLC | 379,465 | $1.09M | 0.00% | +178,645+89.0% | Added |
| Victory Capital Management Inc | 349,543 | $1.01M | 0.00% | −5,083−1.4% | Reduced |
| State of Wisconsin Investment Board | 310,366 | $893.9K | 0.00% | +31,877+11.4% | Added |
| Gsa Capital Partners LLP | 287,583 | $828.0K | 0.07% | +71,300+33.0% | Added |
| Commonwealth Equity Services, LLC | 284,744 | $820.1K | 0.00% | −1,000−0.3% | Reduced |
| Pacific Ridge Capital Partners, LLC | 246,129 | $708.9K | 0.16% | +10,800+4.6% | Added |
| American Century Companies Inc | 213,946 | $616.2K | 0.00% | +5,844+2.8% | Added |
| UBS Asset Management Americas Inc | 212,624 | $612.4K | 0.00% | −5,762−2.6% | Reduced |
| Barclays PLC | 202,461 | $583.1K | 0.00% | +47,690+30.8% | Added |
| ExodusPoint Capital Management, LP | 198,191 | $570.8K | 0.01% | +198,191 | New |
| UBS Group AG | 191,370 | $551.1K | 0.00% | +29,882+18.5% | Added |
| Swiss National Bank | 185,474 | $534.2K | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 176,235 | $507.6K | 0.00% | −97,245−35.6% | Reduced |
| Marshall Wace, LLP | 173,702 | $500.3K | 0.00% | −172,393−49.8% | Reduced |
| Invesco Ltd. | 168,915 | $486.5K | 0.00% | −3,951−2.3% | Reduced |
| Voya Investment Management LLC | 149,560 | $430.7K | 0.00% | +2,618+1.8% | Added |
| Bank of America Corp | 147,689 | $425.3K | 0.00% | +57,203+63.2% | Added |
| SEI Investments Co | 140,047 | $403.4K | 0.00% | +43,775+45.5% | Added |
| LSV Asset Management | 135,800 | $391.0K | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 128,975 | $371.4K | 0.00% | +28,911+28.9% | Added |
| Rhumbline Advisers | 128,287 | $369.5K | 0.00% | −33,528−20.7% | Reduced |
| EntryPoint Capital, LLC | 124,573 | $358.8K | 0.14% | +92,250+285.4% | Added |
| Alliancebernstein L.P. | 119,250 | $343.4K | 0.00% | −67−0.1% | Reduced |
| Wells Fargo & Company | 110,798 | $319.1K | 0.00% | +33,156+42.7% | Added |
| Susquehanna Portfolio Strategies, LLC | 109,892 | $316.5K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 102,885 | $296.3K | 0.01% | −47,473−31.6% | Reduced |
| Legal & General Group Plc | 94,343 | $271.7K | 0.00% | −7,713−7.6% | Reduced |
| Dynamic Technology Lab Private Ltd | 91,026 | $262.0K | 0.06% | +20,982+30.0% | Added |
| California State Teachers Retirement System | 88,452 | $254.7K | 0.00% | −73−0.1% | Reduced |
| Russell Investments Group, Ltd. | 87,532 | $252.1K | 0.00% | −242,655−73.5% | Reduced |
| Deutsche Bank AG | 85,667 | $246.7K | 0.00% | +4,379+5.4% | Added |
| Bailard, Inc. | 74,800 | $215.4K | 0.00% | +2,600+3.6% | Added |
| Franklin Resources Inc | 71,204 | $205.1K | 0.00% | −526,459−88.1% | Reduced |
| Price T Rowe Associates Inc | 69,822 | $202.0K | 0.00% | +9,103+15.0% | Added |
| Trilogy Capital Inc. | 65,360 | $188.2K | 0.01% | +40,510+163.0% | Added |
| Public Employees Retirement System of Ohio | 60,645 | $174.7K | 0.00% | +9,700+19.0% | Added |
| Oxford Asset Management LLP | 55,568 | $160.0K | 0.06% | +55,568 | New |
| Engineers Gate Manager LP | 55,480 | $159.8K | 0.00% | +55,480 | New |
| Susquehanna Fundamental Investments, LLC | 54,537 | $157.1K | 0.01% | +36,136+196.4% | Added |
| Millennium Management LLC | 54,306 | $156.4K | 0.00% | +54,306 | New |
| Citadel Advisors LLC | 53,903 | $155.2K | 0.00% | −1,651−3.0% | Reduced |
| Los Angeles Capital Management LLC | 42,367 | $142.4K | 0.00% | +738+1.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 47,307 | $136.2K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 44,058 | $126.9K | 0.00% | +44,058 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 43,577 | $125.5K | 0.00% | −1,137−2.5% | Reduced |
| SG Americas Securities, LLC | 41,537 | $120.0K | 0.00% | +21,041+102.7% | Added |
| Prelude Capital Management, LLC | 40,738 | $117.3K | 0.01% | +7,900+24.1% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 40,666 | $117.0K | 0.00% | +38,121+1,497.9% | Added |
| Verition Fund Management LLC | 40,496 | $116.6K | 0.00% | +40,496 | New |
| Assenagon Asset Management S.A. | 40,355 | $116.2K | 0.00% | −10,288−20.3% | Reduced |
| State Board of Administration of Florida Retirement System | 37,543 | $108.1K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 37,319 | $107.5K | 0.00% | −16,669−30.9% | Reduced |
| Janus Henderson Group PLC | 35,625 | $102.8K | 0.00% | 00.0% | Unchanged |
| Colony Group, LLC | 35,100 | $101.1K | 0.00% | +100.0% | Added |
| Citigroup Inc | 33,340 | $96.0K | 0.00% | +6,668+25.0% | Added |
| Winton Group Ltd | 33,095 | $95.3K | 0.00% | +33,095 | New |
| Manufacturers Life Insurance Company, The | 31,286 | $90.1K | 0.00% | −2,746−8.1% | Reduced |
| Two Sigma Securities, LLC | 30,746 | $88.5K | 0.01% | +30,746 | New |
| Global Retirement Partners, LLC | 29,778 | $85.8K | 0.00% | +29,778 | New |
| Arizona State Retirement System | 27,369 | $78.8K | 0.00% | −1,327−4.6% | Reduced |
| Intech Investment Management LLC | 27,087 | $78.0K | 0.00% | −12,640−31.8% | Reduced |
| Envestnet Asset Management Inc | 26,714 | $76.9K | 0.00% | −2,340−8.1% | Reduced |
| State of Alaska, Department of Revenue | 25,390 | $72.0K | 0.00% | +17,631+227.2% | Added |
| Police & Firemen's Retirement System of New Jersey | 24,692 | $71.1K | 0.00% | 00.0% | Unchanged |
| Essex Financial Services, Inc. | 24,518 | $70.6K | 0.00% | +13+0.1% | Added |
| New York State Common Retirement Fund | 22,549 | $64.9K | 0.00% | 00.0% | Unchanged |
| Rpo LLC | 22,208 | $64.0K | 0.07% | +22,208 | New |
| GWM Advisors LLC | 22,179 | $63.9K | 0.00% | +4,296+24.0% | Added |
| KLP Kapitalforvaltning AS | 20,800 | $59.9K | 0.00% | +5,300+34.2% | Added |
| Vista Investment Partners LLC | 20,400 | $58.8K | 0.02% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 19,708 | $56.8K | 0.00% | +1,414+7.7% | Added |
| Ironwood Investment Management LLC | 18,350 | $52.8K | 0.02% | −52−0.3% | Reduced |
| Brevan Howard Capital Management LP | 18,219 | $52.5K | 0.00% | +2,720+17.5% | Added |
| Amundi | 17,768 | $51.2K | 0.00% | +17,768 | New |
| STRS Ohio | 17,600 | $50.7K | 0.00% | 00.0% | Unchanged |