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 |
|---|---|---|---|---|---|
| SBI Securities Co., Ltd. | 3 | $11 | 0.00% | −497−99.4% | Reduced |
| Clearstead Advisors, LLC | 5 | $19 | 0.00% | +5 | New |
| Arlington Trust Co LLC | 6 | $23 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 10 | $38 | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 12 | $46 | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 80 | $304 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 102 | $388 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 147 | $559 | 0.00% | +74+101.4% | Added |
| EverSource Wealth Advisors, LLC | 165 | $627 | 0.00% | −48−22.5% | Reduced |
| Nisa Investment Advisors, LLC | 166 | $631 | 0.00% | 00.0% | Unchanged |
| Maryland Capital Advisors Inc. | 200 | $760 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 233 | $885 | 0.00% | +190+441.9% | Added |
| True Wealth Design, LLC | 256 | $973 | 0.00% | +57+28.6% | Added |
| Essential Partners LLC | 274 | $1.04K | 0.00% | +1+0.4% | Added |
| Advisor Group Holdings, Inc. | 281 | $1.07K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 420 | $1.60K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 662 | $2.52K | 0.00% | +662 | New |
| The PNC Financial Services Group, Inc. | 1,036 | $3.94K | 0.00% | 00.0% | Unchanged |
| Community Bank, N.A. | 1,400 | $5.31K | 0.00% | 00.0% | Unchanged |
| Medallion Wealth Advisors, LLC | 1,920 | $7.30K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 2,158 | $8.20K | 0.00% | −1,493−40.9% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,545 | $10.0K | 0.00% | +183+7.7% | Added |
| Allworth Financial LP | 2,957 | $11.2K | 0.00% | +44+1.5% | Added |
| Royal Bank of Canada | 3,216 | $12.0K | 0.00% | −8,102−71.6% | Reduced |
| Amalgamated Bank | 3,119 | $12.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 3,680 | $14.0K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 3,741 | $14.2K | 0.00% | −822−18.0% | Reduced |
| CWM, LLC | 3,938 | $15.0K | 0.00% | +413+11.7% | Added |
| SRS Capital Advisors, Inc. | 4,054 | $15.4K | 0.00% | +4,054 | New |
| Tower Research Capital LLC (TRC) | 4,307 | $16.4K | 0.00% | −5,718−57.0% | Reduced |
| Farther Finance Advisors, LLC | 4,544 | $17.3K | 0.00% | +4,544 | New |
| FMR LLC | 4,890 | $18.6K | 0.00% | −701−12.5% | Reduced |
| Rockefeller Capital Management L.P. | 6,194 | $23.5K | 0.00% | +6,194 | New |
| Sterling Capital Management LLC | 6,472 | $24.6K | 0.00% | +4,019+163.8% | Added |
| State of Alaska, Department of Revenue | 7,759 | $29.0K | 0.00% | +7,759 | New |
| Ameritas Investment Partners, Inc. | 8,663 | $32.9K | 0.00% | 00.0% | Unchanged |
| Fortis Advisors, LLC | 10,000 | $38.0K | 0.02% | 00.0% | Unchanged |
| Grimes & Company, Inc. | 10,030 | $38.1K | 0.00% | 00.0% | Unchanged |
| Keel Point, LLC | 10,721 | $40.7K | 0.00% | −381−3.4% | Reduced |
| Schonfeld Strategic Advisors LLC | 10,826 | $41.1K | 0.00% | +10,826 | New |
| Ballentine Partners, LLC | 11,076 | $42.1K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 11,214 | $42.6K | 0.00% | −105,474−90.4% | Reduced |
| Prudential Financial Inc | 11,711 | $44.5K | 0.00% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 12,441 | $47.3K | 0.00% | −59,581−82.7% | Reduced |
| NewEdge Wealth, LLC | 15,069 | $48.5K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 13,264 | $50.4K | 0.00% | +2,223+20.1% | Added |
| First Bank & Trust | 13,725 | $52.2K | 0.01% | 00.0% | Unchanged |
| Empowered Funds, LLC | 14,502 | $55.1K | 0.00% | +14,502 | New |
| Vestmark Advisory Solutions, Inc. | 15,069 | $57.3K | 0.00% | +15,069 | New |
| Brevan Howard Capital Management LP | 15,499 | $58.9K | 0.00% | +15,499 | New |
| KLP Kapitalforvaltning AS | 15,500 | $58.9K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 16,067 | $61.1K | 0.00% | −3,169−16.5% | Reduced |
| STRS Ohio | 17,600 | $66.9K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 17,883 | $68.0K | 0.00% | +17,883 | New |
| BNP Paribas Arbitrage, SA | 18,294 | $69.5K | 0.00% | +9,662+111.9% | Added |
| Susquehanna Fundamental Investments, LLC | 18,401 | $69.9K | 0.00% | +7,301+65.8% | Added |
| Ironwood Investment Management LLC | 18,402 | $69.9K | 0.03% | −243−1.3% | Reduced |
| Simplex Trading, LLC | 19,942 | $75.0K | 0.00% | +62+0.3% | Added |
| Vista Investment Partners LLC | 20,400 | $77.5K | 0.02% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 20,483 | $77.8K | 0.00% | −61,454−75.0% | Reduced |
| SG Americas Securities, LLC | 20,496 | $78.0K | 0.00% | +20,496 | New |
| MQS Management LLC | 21,308 | $81.0K | 0.05% | +21,308 | New |
| New York State Common Retirement Fund | 22,549 | $85.7K | 0.00% | 00.0% | Unchanged |
| Creative Planning | 22,945 | $87.2K | 0.00% | −1,676−6.8% | Reduced |
| HSBC Holdings PLC | 23,528 | $88.0K | 0.00% | −9,071−27.8% | Reduced |
| Essex Financial Services, Inc. | 24,505 | $93.1K | 0.01% | +429+1.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 24,692 | $93.8K | 0.00% | +3,453+16.3% | Added |
| HighTower Advisors, LLC | 24,828 | $94.3K | 0.00% | −319−1.3% | Reduced |
| Trilogy Capital Inc. | 24,850 | $94.4K | 0.00% | +24,850 | New |
| Citigroup Inc | 26,672 | $101.4K | 0.00% | −24,424−47.8% | Reduced |
| Arizona State Retirement System | 28,696 | $109.0K | 0.00% | +497+1.8% | Added |
| Envestnet Asset Management Inc | 29,054 | $110.4K | 0.00% | −838−2.8% | Reduced |
| Two Sigma Investments, LP | 31,000 | $117.8K | 0.00% | +10,189+49.0% | Added |
| EntryPoint Capital, LLC | 32,323 | $122.8K | 0.05% | +32,323 | New |
| Prelude Capital Management, LLC | 32,838 | $124.8K | 0.01% | +9,100+38.3% | Added |
| Manufacturers Life Insurance Company, The | 34,032 | $129.3K | 0.00% | −2,810−7.6% | Reduced |
| Acadian Asset Management LLC | 34,592 | $131.0K | 0.00% | +34,592 | New |
| Colony Group, LLC | 35,090 | $133.3K | 0.00% | −495−1.4% | Reduced |
| Janus Henderson Group PLC | 35,625 | $135.6K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 37,543 | $142.7K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 38,800 | $147.4K | 0.00% | +11,300+41.1% | Added |
| Intech Investment Management LLC | 39,727 | $151.0K | 0.00% | −39,927−50.1% | Reduced |
| Los Angeles Capital Management LLC | 41,629 | $158.2K | 0.00% | −22,531−35.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 44,714 | $169.9K | 0.00% | −7,876−15.0% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 47,307 | $179.8K | 0.00% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 50,643 | $192.4K | 0.00% | −19,480−27.8% | Reduced |
| Public Employees Retirement System of Ohio | 50,945 | $193.6K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 53,988 | $205.2K | 0.00% | −2,688−4.7% | Reduced |
| Citadel Advisors LLC | 55,554 | $211.1K | 0.00% | +55,554 | New |
| Price T Rowe Associates Inc | 60,719 | $231.0K | 0.00% | +580+1.0% | Added |
| Round Rock Advisors, LLC | 74,240 | $256.1K | 0.04% | +74,240 | New |
| Dynamic Technology Lab Private Ltd | 70,044 | $266.0K | 0.05% | +70,044 | New |
| Bailard, Inc. | 72,200 | $274.4K | 0.01% | +8,600+13.5% | Added |
| Wells Fargo & Company | 77,642 | $295.0K | 0.00% | +11,887+18.1% | Added |
| Deutsche Bank AG | 81,288 | $308.9K | 0.00% | +9,885+13.8% | Added |
| Polen Capital Management LLC | 87,246 | $331.5K | 0.00% | −42,942−33.0% | Reduced |
| California State Teachers Retirement System | 88,525 | $336.4K | 0.00% | −981−1.1% | Reduced |
| Bank of America Corp | 90,486 | $343.8K | 0.00% | −14,148−13.5% | Reduced |
| SEI Investments Co | 96,272 | $365.8K | 0.00% | +1,517+1.6% | Added |
| Ameriprise Financial Inc | 100,064 | $380.2K | 0.00% | −48,646−32.7% | Reduced |