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 |
|---|---|---|---|---|---|
| Legal & General Group Plc | 102,056 | $387.8K | 0.00% | 00.0% | Unchanged |
| Susquehanna Portfolio Strategies, LLC | 109,892 | $417.6K | 0.01% | +79,719+264.2% | Added |
| Alliancebernstein L.P. | 119,317 | $453.4K | 0.00% | +6,000+5.3% | Added |
| Squarepoint Ops LLC | 127,152 | $483.2K | 0.00% | +127,152 | New |
| LSV Asset Management | 135,800 | $516.0K | 0.00% | +135,800 | New |
| Voya Investment Management LLC | 146,942 | $558.4K | 0.00% | −18,516−11.2% | Reduced |
| XTX Topco Ltd | 150,358 | $571.4K | 0.03% | +92,363+159.3% | Added |
| Barclays PLC | 154,771 | $588.1K | 0.00% | −45,278−22.6% | Reduced |
| Penn Capital Management Co Inc | 160,129 | $608.5K | 0.05% | +40,314+33.6% | Added |
| UBS Group AG | 161,488 | $613.7K | 0.00% | −107,405−39.9% | Reduced |
| Rhumbline Advisers | 161,815 | $614.9K | 0.00% | −14,777−8.4% | Reduced |
| AQR Capital Management LLC | 169,107 | $642.6K | 0.00% | −55,993−24.9% | Reduced |
| Invesco Ltd. | 172,866 | $656.9K | 0.00% | +3,471+2.0% | Added |
| Swiss National Bank | 185,474 | $704.8K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 200,820 | $763.1K | 0.00% | +128,424+177.4% | Added |
| American Century Companies Inc | 208,102 | $790.8K | 0.00% | +24,055+13.1% | Added |
| Lazard Asset Management LLC | 208,956 | $794.0K | 0.00% | +208,956 | New |
| Gsa Capital Partners LLP | 216,283 | $822.0K | 0.07% | +6,173+2.9% | Added |
| UBS Asset Management Americas Inc | 218,386 | $829.9K | 0.00% | −152,464−41.1% | Reduced |
| Pacific Ridge Capital Partners, LLC | 235,329 | $894.3K | 0.20% | 00.0% | Unchanged |
| AXA Investment Managers S.A. | 269,401 | $1.02M | 0.00% | +269,401 | New |
| Nuveen, LLC | 273,480 | $1.04M | 0.00% | +3,959+1.5% | Added |
| State of Wisconsin Investment Board | 278,489 | $1.06M | 0.00% | +2,586+0.9% | Added |
| Commonwealth Equity Services, LLC | 285,744 | $1.09M | 0.00% | −4,532−1.6% | Reduced |
| White Pine Capital LLC | 300,785 | $1.14M | 0.33% | −118,172−28.2% | Reduced |
| Russell Investments Group, Ltd. | 330,187 | $1.25M | 0.00% | +126,963+62.5% | Added |
| Bank of New York Mellon Corp | 335,751 | $1.28M | 0.00% | +7,612+2.3% | Added |
| Marshall Wace, LLP | 346,095 | $1.32M | 0.00% | +346,095 | New |
| Raymond James Financial Inc | 348,802 | $1.33M | 0.00% | +1600.0% | Added |
| Victory Capital Management Inc | 354,626 | $1.35M | 0.00% | −136,551−27.8% | Reduced |
| Goldman Sachs Group Inc | 424,159 | $1.61M | 0.00% | +181,448+74.8% | Added |
| Silverberg Bernstein Capital Management LLC | 427,979 | $1.63M | 0.99% | +35,400+9.0% | Added |
| Jacobs Levy Equity Management, Inc | 471,201 | $1.79M | 0.01% | +39,104+9.0% | Added |
| Morgan Stanley | 504,684 | $1.92M | 0.00% | +247,718+96.4% | Added |
| Cinctive Capital Management LP | 524,067 | $1.99M | 0.10% | +524,067 | New |
| D. E. Shaw & Co., Inc. | 588,892 | $2.24M | 0.00% | +172,205+41.3% | Added |
| Franklin Resources Inc | 597,663 | $2.27M | 0.00% | −493,135−45.2% | Reduced |
| Charles Schwab Investment Management Inc | 769,487 | $2.92M | 0.00% | +3,289+0.4% | Added |
| Herald Investment Management Ltd | 912,869 | $3.47M | 0.46% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 964,446 | $3.66M | 0.00% | +481,276+99.6% | Added |
| Northern Trust Corp | 998,111 | $3.79M | 0.00% | −828−0.1% | Reduced |
| First Eagle Investment Management, LLC | 1,033,914 | $3.93M | 0.01% | +8,000+0.8% | Added |
| First Wilshire Securities Management Inc | 1,305,358 | $4.96M | 1.32% | −25,842−1.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 1,865,169 | $7.09M | 0.02% | +389,116+26.4% | Added |
| State Street Corp | 2,094,513 | $7.96M | 0.00% | +1,694+0.1% | Added |
| Geode Capital Management, LLC | 2,310,451 | $8.78M | 0.00% | +7,195+0.3% | Added |
| Royce & Associates LP | 4,305,470 | $16.4M | 0.16% | +633,035+17.2% | Added |
| Dimensional Fund Advisors LP | 6,545,535 | $24.9M | 0.01% | −19,631−0.3% | Reduced |
| Vanguard Group Inc | 7,691,070 | $29.2M | 0.00% | +166,683+2.2% | Added |
| BlackRock, Inc. | 7,698,805 | $29.3M | 0.00% | −40,030−0.5% | Reduced |
| Paradigm Capital Management Inc | 8,749,200 | $33.2M | 1.44% | +1,0000.0% | Added |
| Neuberger Berman Group LLC | 18,254,045 | $64.5M | 0.05% | −207,915−1.1% | Reduced |
| JPMorgan Chase & Co | 52,037,577 | $197.7M | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 0 | $0 | 0.00% | −830,148−100.0% | Sold out |
| Options Solutions, LLC | 0 | $0 | 0.00% | −130,188−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −116,427−100.0% | Sold out |
| Worth Venture Partners, LLC | 0 | $0 | 0.00% | −55,564−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −46,472−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −36,762−100.0% | Sold out |
| Polymer Capital Management (US) LLC | 0 | $0 | 0.00% | −17,417−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −16,790−100.0% | Sold out |
| Tiaa Trust, National Association | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Almanack Investment Partners, LLC. | 0 | $0 | 0.00% | −14,550−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −13,176−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −12,534−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −10,022−100.0% | Sold out |
| Fifth Third Bancorp | 0 | $0 | 0.00% | −6,477−100.0% | Sold out |
| Bessemer Group Inc | 0 | $0 | 0.00% | −818−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −549−100.0% | Sold out |
| CIBC World Markets Corp | – | – | – | – | Not filed |