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 |
|---|---|---|---|---|---|
| Kilter Group LLC | 1 | $3 | 0.00% | +1 | New |
| Basecamp Wealth Advisors LLC | 2 | $4 | 0.00% | +2 | New |
| Caitong International Asset Management Co., Ltd | 3 | $6 | 0.00% | +3 | New |
| TFC Financial Management | 12 | $26 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 15 | $32 | 0.00% | +15 | New |
| SBI Securities Co., Ltd. | 26 | $55 | 0.00% | +17+188.9% | Added |
| Wealth Preservation Advisors, LLC | 50 | $106 | 0.00% | +50 | New |
| CoreCap Advisors, LLC | 80 | $170 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 90 | $191 | 0.00% | −1,995−95.7% | Reduced |
| True Wealth Design, LLC | 123 | $261 | 0.00% | +120+4,000.0% | Added |
| Root Financial Partners, LLC | 164 | $348 | 0.00% | +164 | New |
| IFP Advisors, Inc | 231 | $490 | 0.00% | +68+41.7% | Added |
| Larson Financial Group LLC | 245 | $519 | 0.00% | +74+43.3% | Added |
| Group One Trading, L.P. | 314 | $666 | 0.00% | +314 | New |
| Massmutual Trust Co FSB | 381 | $808 | 0.00% | +381 | New |
| EverSource Wealth Advisors, LLC | 397 | $842 | 0.00% | +395+19,750.0% | Added |
| Signaturefd, LLC | 405 | $859 | 0.00% | +367+965.8% | Added |
| Rothschild Investment LLC | 438 | $929 | 0.00% | +268+157.6% | Added |
| Essential Partners LLC | 502 | $1.06K | 0.00% | +489+3,761.5% | Added |
| MAI Capital Management | 641 | $1.36K | 0.00% | +563+721.8% | Added |
| The PNC Financial Services Group, Inc. | 643 | $1.36K | 0.00% | −420−39.5% | Reduced |
| SRS Capital Advisors, Inc. | 673 | $1.43K | 0.00% | −45−6.3% | Reduced |
| Bell Investment Advisors, Inc | 1,307 | $2.77K | 0.00% | +1,307 | New |
| Community Bank, N.A. | 1,400 | $2.95K | 0.00% | 00.0% | Unchanged |
| Barrow Hanley Mewhinney & Strauss LLC | 1,516 | $3.21K | 0.00% | +1,516 | New |
| UBS Asset Management Americas Inc | 1,547 | $3.28K | 0.00% | −211,077−99.3% | Reduced |
| Farther Finance Advisors, LLC | 1,654 | $3.62K | 0.00% | −2,868−63.4% | Reduced |
| Medallion Wealth Advisors, LLC | 1,920 | $4.07K | 0.00% | 00.0% | Unchanged |
| Colonial Trust Advisors | 2,000 | $4.24K | 0.00% | +1,000+100.0% | Added |
| Fifth Third Bancorp | 2,049 | $4.34K | 0.00% | +2,049 | New |
| Sterling Capital Management LLC | 3,105 | $6.58K | 0.00% | −2,302−42.6% | Reduced |
| Allworth Financial LP | 3,263 | $6.92K | 0.00% | +258+8.6% | Added |
| Rockefeller Capital Management L.P. | 3,602 | $7.64K | 0.00% | −2,806−43.8% | Reduced |
| California State Teachers Retirement System | 5,075 | $10.8K | 0.00% | −83,377−94.3% | Reduced |
| FMR LLC | 5,221 | $11.1K | 0.00% | −8,052−60.7% | Reduced |
| Royal Bank of Canada | 5,896 | $12.0K | 0.00% | +2,782+89.3% | Added |
| Advisor Group Holdings, Inc. | 7,536 | $16.0K | 0.00% | −41−0.5% | Reduced |
| Tower Research Capital LLC (TRC) | 7,558 | $16.0K | 0.00% | −7,229−48.9% | Reduced |
| Legal & General Group Plc | 8,432 | $17.9K | 0.00% | −85,911−91.1% | Reduced |
| Ameritas Investment Partners, Inc. | 8,663 | $18.4K | 0.00% | 00.0% | Unchanged |
| Kathmere Capital Management, LLC | 10,000 | $21.2K | 0.00% | 00.0% | Unchanged |
| Grimes & Company, Inc. | 10,030 | $21.3K | 0.00% | 00.0% | Unchanged |
| Indivisible Partners | 10,257 | $21.7K | 0.00% | 00.0% | Unchanged |
| Ballentine Partners, LLC | 10,664 | $22.6K | 0.00% | +10,664 | New |
| Canada Pension Plan Investment Board | 11,400 | $24.2K | 0.00% | +11,400 | New |
| Y-Intercept (Hong Kong) Ltd | 12,356 | $26.2K | 0.00% | +12,356 | New |
| CWM, LLC | 12,399 | $26.3K | 0.00% | +10,205+465.1% | Added |
| White Pine Capital LLC | 13,335 | $28.3K | 0.01% | 00.0% | Unchanged |
| ProShare Advisors LLC | 13,597 | $28.8K | 0.00% | −3,546−20.7% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 13,557 | $29.6K | 0.00% | +13,557 | New |
| Ieq Capital, LLC | 14,129 | $30.0K | 0.00% | +14,129 | New |
| Nine Masts Capital Ltd | 14,377 | $30.5K | 0.00% | +14,377 | New |
| Prudential Financial Inc | 14,638 | $31.0K | 0.00% | +14,638 | New |
| Trilogy Capital Inc. | 15,360 | $32.6K | 0.00% | −50,000−76.5% | Reduced |
| LPL Financial LLC | 15,601 | $33.1K | 0.00% | +1,689+12.1% | Added |
| Seven Mile Advisory | 15,976 | $33.9K | 0.02% | +15,976 | New |
| 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 |
| STRS Ohio | 17,600 | $37.3K | 0.00% | 00.0% | Unchanged |
| Ironwood Investment Management LLC | 18,066 | $38.3K | 0.02% | −284−1.5% | Reduced |
| Jones Financial Companies LLLP | 19,118 | $40.7K | 0.00% | +1,850+10.7% | Added |
| BNP Paribas Arbitrage, SA | 20,036 | $42.5K | 0.00% | +328+1.7% | Added |
| Vista Investment Partners LLC | 20,400 | $43.2K | 0.01% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 21,784 | $46.2K | 0.00% | +21,784 | New |
| Intech Investment Management LLC | 21,940 | $46.5K | 0.00% | −5,147−19.0% | Reduced |
| New York State Common Retirement Fund | 22,549 | $47.8K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 22,964 | $48.7K | 0.01% | −7,782−25.3% | Reduced |
| Mariner, LLC | 23,093 | $49.0K | 0.00% | +23,093 | New |
| Essex Financial Services, Inc. | 24,661 | $52.3K | 0.00% | +143+0.6% | Added |
| Police & Firemen's Retirement System of New Jersey | 24,692 | $52.3K | 0.00% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 25,390 | $53.0K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 25,382 | $53.8K | 0.00% | −60,285−70.4% | Reduced |
| Virtu Financial LLC | 25,706 | $54.0K | 0.00% | +25,706 | New |
| Abacus Wealth Partners, LLC | 26,091 | $55.3K | 0.01% | +26,091 | New |
| Envestnet Asset Management Inc | 26,477 | $56.1K | 0.00% | −237−0.9% | Reduced |
| Manufacturers Life Insurance Company, The | 27,704 | $58.7K | 0.00% | −3,582−11.4% | Reduced |
| Colony Group, LLC | 31,412 | $66.6K | 0.00% | −3,688−10.5% | Reduced |
| Polymer Capital Management (US) LLC | 31,877 | $67.6K | 0.01% | +31,877 | New |
| SG Americas Securities, LLC | 32,161 | $68.0K | 0.00% | −9,376−22.6% | Reduced |
| Citigroup Inc | 36,567 | $77.5K | 0.00% | +3,227+9.7% | Added |
| Wells Fargo & Company | 37,438 | $79.4K | 0.00% | −73,360−66.2% | Reduced |
| State Board of Administration of Florida Retirement System | 37,543 | $79.6K | 0.00% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 37,927 | $80.4K | 0.00% | −2,428−6.0% | Reduced |
| MetLife Investment Management | 39,460 | $83.7K | 0.00% | +2,141+5.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 44,653 | $94.7K | 0.00% | +1,076+2.5% | Added |
| Prelude Capital Management, LLC | 49,038 | $104.0K | 0.01% | +8,300+20.4% | Added |
| Winton Group Ltd | 50,115 | $106.2K | 0.00% | +17,020+51.4% | Added |
| Vident Advisory, LLC | 50,192 | $106.4K | 0.00% | +50,192 | New |
| Susquehanna International Group, LLP | 52,231 | $110.7K | 0.00% | +52,231 | New |
| Susquehanna Fundamental Investments, LLC | 54,537 | $115.6K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 54,933 | $116.5K | 0.01% | +54,933 | New |
| Dynamic Technology Lab Private Ltd | 59,495 | $126.1K | 0.02% | −31,531−34.6% | Reduced |
| Public Employees Retirement System of Ohio | 60,645 | $128.6K | 0.00% | 00.0% | Unchanged |
| Creative Planning | 64,892 | $137.6K | 0.00% | +64,892 | New |
| Price T Rowe Associates Inc | 69,822 | $149.0K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 81,706 | $173.2K | 0.00% | −58,341−41.7% | 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 |
| Susquehanna Portfolio Strategies, LLC | 93,190 | $197.6K | 0.00% | −16,702−15.2% | Reduced |
| Herald Investment Management Ltd | 100,000 | $212.0K | 0.03% | −700,000−87.5% | Reduced |