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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, Q2 2025

Institutional positions in Ribbon Communications Inc. as of Jun 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
145
+2 vs. Q1 2025
Shares held
128.1M
+691.4K (+0.5%) vs. Q1 2025
Total value
$508.9M
+$13.7M (+2.8%) vs. Q1 2025
New holders
22
60 more added
Sold out
20
34 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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.

Institutional holdersQ2 2025: 145 institutions
Q1 2021: 146 institutionsQ2 2021: 127 institutionsQ3 2021: 124 institutionsQ4 2021: 129 institutionsQ1 2022: 136 institutionsQ2 2022: 132 institutionsQ3 2022: 129 institutionsQ4 2022: 130 institutionsQ1 2023: 145 institutionsQ2 2023: 127 institutionsQ3 2023: 122 institutionsQ4 2023: 125 institutionsQ1 2024: 132 institutionsQ2 2024: 129 institutionsQ3 2024: 126 institutionsQ4 2024: 133 institutionsQ1 2025: 144 institutionsQ2 2025: 145 institutionsQ3 2025: 153 institutionsQ4 2025: 153 institutionsQ1 2026: 150 institutionsQ2 2026: 160 institutions
Value heldQ2 2025: $508.9M
Q1 2021: $804.7MQ2 2021: $748.5MQ3 2021: $580.4MQ4 2021: $600.0MQ1 2022: $308.9MQ2 2022: $306.6MQ3 2022: $262.9MQ4 2022: $329.3MQ1 2023: $422.5MQ2 2023: $353.2MQ3 2023: $341.2MQ4 2023: $372.7MQ1 2024: $397.7MQ2 2024: $424.9MQ3 2024: $402.3MQ4 2024: $519.8MQ1 2025: $495.2MQ2 2025: $508.9MQ3 2025: $488.6MQ4 2025: $369.2MQ1 2026: $268.2MQ2 2026: $289.8M
Institutions holding RBBN and their total value by quarter
QuarterHoldersValue
Q2 2026160$289.8M
Q1 2026150$268.2M
Q4 2025153$369.2M
Q3 2025153$488.6M
Q2 2025145$508.9M
Q1 2025144$495.2M
Q4 2024133$519.8M
Q3 2024126$402.3M
Q2 2024129$424.9M
Q1 2024132$397.7M
Q4 2023125$372.7M
Q3 2023122$341.2M
Q2 2023127$353.2M
Q1 2023145$422.5M
Q4 2022130$329.3M
Q3 2022129$262.9M
Q2 2022132$306.6M
Q1 2022136$308.9M
Q4 2021129$600.0M
Q3 2021124$580.4M
Q2 2021127$748.5M
Q1 2021146$804.7M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Ribbon Communications Inc.; share changes are against Q1 2025.

Institutions holding RBBN in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Arlington Trust Co LLC6$240.00%00.0%Unchanged
GAMMA Investing LLC10$400.00%+10New
TFC Financial Management12$490.00%00.0%Unchanged
Signaturefd, LLC73$2930.00%+73New
CoreCap Advisors, LLC80$3210.00%00.0%Unchanged
Larson Financial Group LLC102$4090.00%+9+9.7%Added
Nisa Investment Advisors, LLC166$6660.00%−251−60.2%Reduced
True Wealth Design, LLC199$7980.00%+166+503.0%Added
Maryland Capital Advisors Inc.200$8020.00%00.0%Unchanged
EverSource Wealth Advisors, LLC213$8540.00%+85+66.4%Added
Essential Partners LLC273$1.09K0.00%+273New
Advisor Group Holdings, Inc.281$1.13K0.00%+15+5.6%Added
Rothschild Investment LLC420$1.68K0.00%+145+52.7%Added
SBI Securities Co., Ltd.500$2.00K0.00%+500New
Caitong International Asset Management Co., Ltd549$2.20K0.00%+549New
Bessemer Group Inc818$3.00K0.00%+818New
The PNC Financial Services Group, Inc.1,036$4.15K0.00%00.0%Unchanged
Community Bank, N.A.1,400$5.60K0.00%00.0%Unchanged
Medallion Wealth Advisors, LLC1,920$8.03K0.00%00.0%Unchanged
BNP PARIBAS ASSET MANAGEMENT Holding S.A.2,362$9.00K0.00%+2,362New
Sterling Capital Management LLC2,453$9.84K0.00%+873+55.3%Added
Allworth Financial LP2,913$11.7K0.00%+212+7.8%Added
Amalgamated Bank3,119$13.0K0.00%00.0%Unchanged
CWM, LLC3,525$14.0K0.00%+835+31.0%Added
US Bancorp3,651$14.6K0.00%+1,068+41.3%Added
Great West Life Assurance Co3,680$15.0K0.00%00.0%Unchanged
Comerica Bank4,563$18.3K0.00%+443+10.8%Added
FMR LLC5,591$22.4K0.00%−1,747−23.8%Reduced
Fifth Third Bancorp6,477$26.0K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA8,632$34.6K0.00%−33,672−79.6%Reduced
Ameritas Investment Partners, Inc.8,663$34.7K0.00%00.0%Unchanged
Fortis Advisors, LLC10,000$40.1K0.03%00.0%Unchanged
Integrated Wealth Concepts LLC10,022$40.2K0.00%+10,022New
Tower Research Capital LLC (TRC)10,025$40.2K0.00%+8,213+453.3%Added
Grimes & Company, Inc.10,030$40.2K0.00%00.0%Unchanged
LPL Financial LLC11,041$44.3K0.00%+11,041New
Ballentine Partners, LLC11,076$44.4K0.00%+11,076New
Susquehanna Fundamental Investments, LLC11,100$44.5K0.00%00.0%Unchanged
Keel Point, LLC11,102$44.5K0.00%+11,102New
Royal Bank of Canada11,318$46.0K0.00%+5,441+92.6%Added
CIBC World Markets Corp11,558$46.3K0.00%−8,755−43.1%Reduced
Prudential Financial Inc11,711$47.0K0.00%+11,711New
Occudo Quantitative Strategies LP12,534$50.3K0.01%+12,534New
Engineers Gate Manager LP13,176$52.8K0.00%+13,176New
First Bank & Trust13,725$55.0K0.01%−15,537−53.1%Reduced
NewEdge Wealth, LLC15,069$57.0K0.00%−61−0.4%Reduced
Almanack Investment Partners, LLC.14,550$58.3K0.01%+14,550New
Tiaa Trust, National Association15,000$60.1K0.00%+15,000New
KLP Kapitalforvaltning AS15,500$62.2K0.00%00.0%Unchanged
Jump Financial, LLC16,790$67.3K0.00%+16,790New
Polymer Capital Management (US) LLC17,417$69.8K0.01%−42,150−70.8%Reduced
STRS Ohio17,600$70.6K0.00%00.0%Unchanged
Ironwood Investment Management LLC18,645$74.8K0.04%−573−3.0%Reduced
ProShare Advisors LLC19,236$77.1K0.00%−581−2.9%Reduced
Simplex Trading, LLC19,880$79.0K0.00%+18,687+1,566.4%Added
Vista Investment Partners LLC20,400$81.8K0.02%00.0%Unchanged
Two Sigma Investments, LP20,811$83.5K0.00%+20,811New
Police & Firemen's Retirement System of New Jersey21,239$85.2K0.00%00.0%Unchanged
New York State Common Retirement Fund22,549$90.4K0.00%00.0%Unchanged
Prelude Capital Management, LLC23,738$95.2K0.01%−9,980−29.6%Reduced
Essex Financial Services, Inc.24,076$96.5K0.01%+21+0.1%Added
Creative Planning24,621$98.7K0.00%+9,682+64.8%Added
HighTower Advisors, LLC25,147$100.8K0.00%+56+0.2%Added
Renaissance Technologies LLC27,500$110.3K0.00%−117,312−81.0%Reduced
Arizona State Retirement System28,199$113.1K0.00%+559+2.0%Added
Envestnet Asset Management Inc29,892$119.9K0.00%−2,221−6.9%Reduced
Susquehanna Portfolio Strategies, LLC30,173$121.0K0.00%+30,173New
HSBC Holdings PLC32,599$131.2K0.00%−1,507−4.4%Reduced
Colony Group, LLC35,585$142.7K0.00%+50.0%Added
Janus Henderson Group PLC35,625$143.0K0.00%00.0%Unchanged
AXA S.A.36,762$147.4K0.00%00.0%Unchanged
Manufacturers Life Insurance Company, The36,842$147.7K0.00%+2,436+7.1%Added
State Board of Administration of Florida Retirement System37,543$150.5K0.00%00.0%Unchanged
Balyasny Asset Management LLC46,472$186.4K0.00%+46,472New
Zurcher Kantonalbank (Zurich Cantonalbank)47,307$189.7K0.00%+38,011+408.9%Added
Public Employees Retirement System of Ohio50,945$204.3K0.00%00.0%Unchanged
Citigroup Inc51,096$204.9K0.00%−31,364−38.0%Reduced
Mirae Asset Global ETFs Holdings Ltd.52,590$210.9K0.00%−2,340−4.3%Reduced
Worth Venture Partners, LLC55,564$222.8K0.34%+5,000+9.9%Added
MetLife Investment Management56,676$227.3K0.00%+18,238+47.4%Added
XTX Topco Ltd57,995$232.6K0.01%−99,833−63.3%Reduced
Price T Rowe Associates Inc60,139$242.0K0.00%−7,195−10.7%Reduced
Bailard, Inc.63,600$255.0K0.01%+2,155+3.5%Added
Los Angeles Capital Management LLC64,160$257.3K0.00%+5,600+9.6%Added
Wells Fargo & Company65,755$263.7K0.00%+5,237+8.7%Added
Assenagon Asset Management S.A.70,123$281.2K0.00%−8,207−10.5%Reduced
Deutsche Bank AG71,403$286.3K0.00%−5,667−7.4%Reduced
Teacher Retirement System of Texas72,022$288.8K0.00%+19,013+35.9%Added
Jane Street Group, LLC72,396$290.3K0.00%−28,815−28.5%Reduced
Intech Investment Management LLC79,654$319.4K0.00%+8,116+11.3%Added
Boothbay Fund Management, LLC81,937$328.6K0.01%+20,665+33.7%Added
California State Teachers Retirement System89,506$358.9K0.00%00.0%Unchanged
SEI Investments Co94,755$380.0K0.00%−1,215−1.3%Reduced
Legal & General Group Plc102,056$409.2K0.00%00.0%Unchanged
Bank of America Corp104,634$419.6K0.00%−216,426−67.4%Reduced
Alliancebernstein L.P.113,317$454.4K0.00%+14,430+14.6%Added
Verition Fund Management LLC116,427$466.9K0.00%+116,427New
Susquehanna International Group, LLP116,688$467.9K0.00%+4,040+3.6%Added
Penn Capital Management Co Inc119,815$480.5K0.04%+30,516+34.2%Added
Polen Capital Management LLC130,188$522.1K0.00%+130,188New