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, Q3 2025
Institutional positions in Ribbon Communications Inc. as of Sep 30, 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
- +9 vs. Q2 2025
- Shares held
- 129.9M
- +1.77M (+1.4%) vs. Q2 2025
- Total value
- $488.6M
- −$20.2M (−4.0%) vs. Q2 2025
- New holders
- 25
- 50 more added
- Sold out
- 16
- 44 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Ribbon Communications Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 52,037,577 | $197.7M | 0.01% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 18,254,045 | $64.5M | 0.05% | −207,915−1.1% | Reduced |
| Paradigm Capital Management Inc | 8,749,200 | $33.2M | 1.44% | +1,0000.0% | Added |
| BlackRock, Inc. | 7,698,805 | $29.3M | 0.00% | −40,030−0.5% | Reduced |
| Vanguard Group Inc | 7,691,070 | $29.2M | 0.00% | +166,683+2.2% | Added |
| Dimensional Fund Advisors LP | 6,545,535 | $24.9M | 0.01% | −19,631−0.3% | Reduced |
| Royce & Associates LP | 4,305,470 | $16.4M | 0.16% | +633,035+17.2% | Added |
| Geode Capital Management, LLC | 2,310,451 | $8.78M | 0.00% | +7,195+0.3% | Added |
| State Street Corp | 2,094,513 | $7.96M | 0.00% | +1,694+0.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 1,865,169 | $7.09M | 0.02% | +389,116+26.4% | Added |
| First Wilshire Securities Management Inc | 1,305,358 | $4.96M | 1.32% | −25,842−1.9% | Reduced |
| First Eagle Investment Management, LLC | 1,033,914 | $3.93M | 0.01% | +8,000+0.8% | Added |
| Northern Trust Corp | 998,111 | $3.79M | 0.00% | −828−0.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 964,446 | $3.66M | 0.00% | +481,276+99.6% | Added |
| Herald Investment Management Ltd | 912,869 | $3.47M | 0.46% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 769,487 | $2.92M | 0.00% | +3,289+0.4% | Added |
| Franklin Resources Inc | 597,663 | $2.27M | 0.00% | −493,135−45.2% | Reduced |
| D. E. Shaw & Co., Inc. | 588,892 | $2.24M | 0.00% | +172,205+41.3% | Added |
| Cinctive Capital Management LP | 524,067 | $1.99M | 0.10% | +524,067 | New |
| Morgan Stanley | 504,684 | $1.92M | 0.00% | +247,718+96.4% | Added |
| Jacobs Levy Equity Management, Inc | 471,201 | $1.79M | 0.01% | +39,104+9.0% | Added |
| Silverberg Bernstein Capital Management LLC | 427,979 | $1.63M | 0.99% | +35,400+9.0% | Added |
| Goldman Sachs Group Inc | 424,159 | $1.61M | 0.00% | +181,448+74.8% | Added |
| Victory Capital Management Inc | 354,626 | $1.35M | 0.00% | −136,551−27.8% | Reduced |
| Raymond James Financial Inc | 348,802 | $1.33M | 0.00% | +1600.0% | Added |
| Marshall Wace, LLP | 346,095 | $1.32M | 0.00% | +346,095 | New |
| Bank of New York Mellon Corp | 335,751 | $1.28M | 0.00% | +7,612+2.3% | Added |
| Russell Investments Group, Ltd. | 330,187 | $1.25M | 0.00% | +126,963+62.5% | Added |
| White Pine Capital LLC | 300,785 | $1.14M | 0.33% | −118,172−28.2% | Reduced |
| Commonwealth Equity Services, LLC | 285,744 | $1.09M | 0.00% | −4,532−1.6% | Reduced |
| State of Wisconsin Investment Board | 278,489 | $1.06M | 0.00% | +2,586+0.9% | Added |
| Nuveen, LLC | 273,480 | $1.04M | 0.00% | +3,959+1.5% | Added |
| AXA Investment Managers S.A. | 269,401 | $1.02M | 0.00% | +269,401 | New |
| Pacific Ridge Capital Partners, LLC | 235,329 | $894.3K | 0.20% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 218,386 | $829.9K | 0.00% | −152,464−41.1% | Reduced |
| Gsa Capital Partners LLP | 216,283 | $822.0K | 0.07% | +6,173+2.9% | Added |
| Lazard Asset Management LLC | 208,956 | $794.0K | 0.00% | +208,956 | New |
| American Century Companies Inc | 208,102 | $790.8K | 0.00% | +24,055+13.1% | Added |
| Jane Street Group, LLC | 200,820 | $763.1K | 0.00% | +128,424+177.4% | Added |
| Swiss National Bank | 185,474 | $704.8K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 172,866 | $656.9K | 0.00% | +3,471+2.0% | Added |
| AQR Capital Management LLC | 169,107 | $642.6K | 0.00% | −55,993−24.9% | Reduced |
| Rhumbline Advisers | 161,815 | $614.9K | 0.00% | −14,777−8.4% | Reduced |
| UBS Group AG | 161,488 | $613.7K | 0.00% | −107,405−39.9% | Reduced |
| Penn Capital Management Co Inc | 160,129 | $608.5K | 0.05% | +40,314+33.6% | Added |
| Barclays PLC | 154,771 | $588.1K | 0.00% | −45,278−22.6% | Reduced |
| XTX Topco Ltd | 150,358 | $571.4K | 0.03% | +92,363+159.3% | Added |
| Voya Investment Management LLC | 146,942 | $558.4K | 0.00% | −18,516−11.2% | Reduced |
| LSV Asset Management | 135,800 | $516.0K | 0.00% | +135,800 | New |
| Squarepoint Ops LLC | 127,152 | $483.2K | 0.00% | +127,152 | New |
| Alliancebernstein L.P. | 119,317 | $453.4K | 0.00% | +6,000+5.3% | Added |
| Susquehanna Portfolio Strategies, LLC | 109,892 | $417.6K | 0.01% | +79,719+264.2% | Added |
| Legal & General Group Plc | 102,056 | $387.8K | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 100,064 | $380.2K | 0.00% | −48,646−32.7% | Reduced |
| SEI Investments Co | 96,272 | $365.8K | 0.00% | +1,517+1.6% | Added |
| Bank of America Corp | 90,486 | $343.8K | 0.00% | −14,148−13.5% | Reduced |
| California State Teachers Retirement System | 88,525 | $336.4K | 0.00% | −981−1.1% | Reduced |
| Polen Capital Management LLC | 87,246 | $331.5K | 0.00% | −42,942−33.0% | Reduced |
| Deutsche Bank AG | 81,288 | $308.9K | 0.00% | +9,885+13.8% | Added |
| Wells Fargo & Company | 77,642 | $295.0K | 0.00% | +11,887+18.1% | Added |
| Bailard, Inc. | 72,200 | $274.4K | 0.01% | +8,600+13.5% | Added |
| Dynamic Technology Lab Private Ltd | 70,044 | $266.0K | 0.05% | +70,044 | New |
| Round Rock Advisors, LLC | 74,240 | $256.1K | 0.04% | +74,240 | New |
| Price T Rowe Associates Inc | 60,719 | $231.0K | 0.00% | +580+1.0% | Added |
| Citadel Advisors LLC | 55,554 | $211.1K | 0.00% | +55,554 | New |
| MetLife Investment Management | 53,988 | $205.2K | 0.00% | −2,688−4.7% | Reduced |
| Public Employees Retirement System of Ohio | 50,945 | $193.6K | 0.00% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 50,643 | $192.4K | 0.00% | −19,480−27.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 47,307 | $179.8K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 44,714 | $169.9K | 0.00% | −7,876−15.0% | Reduced |
| Los Angeles Capital Management LLC | 41,629 | $158.2K | 0.00% | −22,531−35.1% | Reduced |
| Intech Investment Management LLC | 39,727 | $151.0K | 0.00% | −39,927−50.1% | Reduced |
| Renaissance Technologies LLC | 38,800 | $147.4K | 0.00% | +11,300+41.1% | Added |
| State Board of Administration of Florida Retirement System | 37,543 | $142.7K | 0.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 35,625 | $135.6K | 0.00% | 00.0% | Unchanged |
| Colony Group, LLC | 35,090 | $133.3K | 0.00% | −495−1.4% | Reduced |
| Acadian Asset Management LLC | 34,592 | $131.0K | 0.00% | +34,592 | New |
| Manufacturers Life Insurance Company, The | 34,032 | $129.3K | 0.00% | −2,810−7.6% | Reduced |
| Prelude Capital Management, LLC | 32,838 | $124.8K | 0.01% | +9,100+38.3% | Added |
| EntryPoint Capital, LLC | 32,323 | $122.8K | 0.05% | +32,323 | New |
| Two Sigma Investments, LP | 31,000 | $117.8K | 0.00% | +10,189+49.0% | Added |
| Envestnet Asset Management Inc | 29,054 | $110.4K | 0.00% | −838−2.8% | Reduced |
| Arizona State Retirement System | 28,696 | $109.0K | 0.00% | +497+1.8% | Added |
| Citigroup Inc | 26,672 | $101.4K | 0.00% | −24,424−47.8% | Reduced |
| Trilogy Capital Inc. | 24,850 | $94.4K | 0.00% | +24,850 | New |
| HighTower Advisors, LLC | 24,828 | $94.3K | 0.00% | −319−1.3% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 24,692 | $93.8K | 0.00% | +3,453+16.3% | Added |
| Essex Financial Services, Inc. | 24,505 | $93.1K | 0.01% | +429+1.8% | Added |
| HSBC Holdings PLC | 23,528 | $88.0K | 0.00% | −9,071−27.8% | Reduced |
| Creative Planning | 22,945 | $87.2K | 0.00% | −1,676−6.8% | Reduced |
| New York State Common Retirement Fund | 22,549 | $85.7K | 0.00% | 00.0% | Unchanged |
| MQS Management LLC | 21,308 | $81.0K | 0.05% | +21,308 | New |
| SG Americas Securities, LLC | 20,496 | $78.0K | 0.00% | +20,496 | New |
| Boothbay Fund Management, LLC | 20,483 | $77.8K | 0.00% | −61,454−75.0% | Reduced |
| Vista Investment Partners LLC | 20,400 | $77.5K | 0.02% | 00.0% | Unchanged |
| Simplex Trading, LLC | 19,942 | $75.0K | 0.00% | +62+0.3% | Added |
| Ironwood Investment Management LLC | 18,402 | $69.9K | 0.03% | −243−1.3% | Reduced |
| Susquehanna Fundamental Investments, LLC | 18,401 | $69.9K | 0.00% | +7,301+65.8% | Added |
| BNP Paribas Arbitrage, SA | 18,294 | $69.5K | 0.00% | +9,662+111.9% | Added |
| GWM Advisors LLC | 17,883 | $68.0K | 0.00% | +17,883 | New |