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 2023
Institutional positions in Ribbon Communications Inc. as of Mar 31, 2023. 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
- 145
- +17 vs. Q4 2022
- Shares held
- 119.6M
- +1.68M (+1.4%) vs. Q4 2022
- Total value
- $422.5M
- +$93.4M (+28.4%) vs. Q4 2022
- New holders
- 30
- 53 more added
- Sold out
- 13
- 36 more reduced
2 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Ribbon Communications Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Swiss National Bank | 163,274 | $558.4K | 0.00% | −18,800−10.3% | Reduced |
| Panagora Asset Management Inc | 171,564 | $586.7K | 0.00% | +1,637+1.0% | Added |
| Los Angeles Capital Management LLC | 172,775 | $590.9K | 0.00% | +172,775 | New |
| Assenagon Asset Management S.A. | 185,351 | $633.9K | 0.00% | +120,874+187.5% | Added |
| Susquehanna International Group, LLP | 192,463 | $658.2K | 0.00% | +164,247+582.1% | Added |
| SG Capital Management LLC | 198,189 | $677.8K | 0.25% | +198,189 | New |
| Squarepoint Ops LLC | 218,285 | $746.5K | 0.01% | +218,285 | New |
| Boothbay Fund Management, LLC | 225,426 | $771.0K | 0.02% | −176,169−43.9% | Reduced |
| Morgan Stanley | 272,309 | $931.3K | 0.00% | +38,808+16.6% | Added |
| Acadian Asset Management LLC | 276,904 | $944.0K | 0.00% | +241,900+691.1% | Added |
| Bank of New York Mellon Corp | 276,326 | $945.0K | 0.00% | −4,626−1.6% | Reduced |
| Cowen Prime Advisors LLC | 386,603 | $990.0K | 0.40% | −6,800−1.7% | Reduced |
| Two Sigma Advisers, LP | 298,100 | $1.02M | 0.00% | +83,200+38.7% | Added |
| Westerly Capital Management, LLC | 300,000 | $1.03M | 0.74% | −225,000−42.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 306,023 | $1.05M | 0.01% | +103,511+51.1% | Added |
| Kennedy Capital Management, Inc. | 309,625 | $1.06M | 0.03% | 00.0% | Unchanged |
| Jane Street Group, LLC | 309,673 | $1.06M | 0.00% | +289,502+1,435.2% | Added |
| Brandes Investment Partners, LP | 347,204 | $1.19M | 0.03% | +295,995+578.0% | Added |
| HRT Financial LP | 367,742 | $1.26M | 0.02% | +367,742 | New |
| Two Sigma Investments, LP | 405,990 | $1.39M | 0.00% | +60,441+17.5% | Added |
| Federated Hermes, Inc. | 423,183 | $1.45M | 0.00% | −319,302−43.0% | Reduced |
| Goldman Sachs Group Inc | 518,245 | $1.77M | 0.00% | +313,302+152.9% | Added |
| Citadel Advisors LLC | 539,327 | $1.84M | 0.00% | +499,792+1,264.2% | Added |
| Royce & Associates LP | 576,500 | $1.97M | 0.02% | +576,500 | New |
| Charles Schwab Investment Management Inc | 621,397 | $2.13M | 0.00% | −22,019−3.4% | Reduced |
| Northern Trust Corp | 660,691 | $2.26M | 0.00% | −35,297−5.1% | Reduced |
| Nuveen Asset Management, LLC | 663,904 | $2.27M | 0.00% | −25,693−3.7% | Reduced |
| Arrowstreet Capital, Limited Partnership | 902,256 | $3.09M | 0.00% | +434,742+93.0% | Added |
| D. E. Shaw & Co., Inc. | 967,307 | $3.31M | 0.01% | +120,528+14.2% | Added |
| Jacobs Levy Equity Management, Inc | 967,361 | $3.31M | 0.02% | −47,116−4.6% | Reduced |
| Intrinsic Edge Capital Management LLC | 1,310,717 | $4.48M | 0.45% | −328,627−20.0% | Reduced |
| Herald Investment Management Ltd | 1,415,869 | $4.83M | 1.07% | +200.0% | Added |
| AMH Equity Ltd | 1,440,000 | $4.92M | 6.71% | −184,101−11.3% | Reduced |
| Penserra Capital Management LLC | 1,473,168 | $5.04M | 0.10% | −88,519−5.7% | Reduced |
| Millennium Management LLC | 1,564,281 | $5.35M | 0.01% | +1,223,536+359.1% | Added |
| State Street Corp | 1,612,543 | $5.51M | 0.00% | −31,503−1.9% | Reduced |
| Putnam Investments LLC | 1,619,003 | $5.54M | 0.01% | +117,749+7.8% | Added |
| Geode Capital Management, LLC | 1,637,019 | $5.60M | 0.00% | +60,812+3.9% | Added |
| First Wilshire Securities Management Inc | 1,784,583 | $6.10M | 2.08% | +1,332+0.1% | Added |
| Dimensional Fund Advisors LP | 3,966,972 | $13.6M | 0.00% | +149,207+3.9% | Added |
| Vanguard Group Inc | 5,392,700 | $18.4M | 0.00% | +144,265+2.7% | Added |
| BlackRock Inc. | 6,109,144 | $20.9M | 0.00% | +129,622+2.2% | Added |
| Paradigm Capital Management Inc | 6,678,353 | $22.8M | 1.51% | +100,453+1.5% | Added |
| Neuberger Berman Group LLC | 15,653,105 | $67.2M | 0.06% | +2,114,412+15.6% | Added |
| JPMorgan Chase & Co | 51,595,932 | $176.5M | 0.02% | 00.0% | Unchanged |
| First Trust Advisors LP | 0 | $0 | 0.00% | −6,040,443−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −52,400−100.0% | Sold out |
| Acrisure Capital Management, LLC | 0 | $0 | 0.00% | −36,105−100.0% | Sold out |
| Independent Financial Group, LLC | 0 | $0 | 0.00% | −17,000−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −14,825−100.0% | Sold out |
| Wedbush Securities Inc | 0 | $0 | 0.00% | −14,109−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −13,870−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −12,590−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −7,325−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −2,266−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| GW&K Investment Management, LLC | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| Sofos Investments, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Alpha Paradigm Partners, LLC | – | – | – | – | Not filed |
| CoreCap Advisors, LLC | – | – | – | – | Not filed |