Ribbon CommunicationsRBBN

13F holders, Q3 2025 (September 30)
153holders +8
24new positions
16sold out
4famous investors
$3.76avg. 13F price*

At the end of Q3 2025, 153 institutions reported holding Ribbon Communications Inc. (RBBN) in their 13F filings, up 8 from Q2 2025. 24 opened new positions and 16 sold out. The largest holders were JPMorgan Chase & Co. ($197.7M), Neuberger Berman Group LLC ($64.5M) and Paradigm Capital Management Inc. ($33.2M). 4 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Ribbon Communications Inc.
CUSIP
762544104
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200 Q1 2024: 132Q1 2024Q2 2024: 129Q2 2024Q3 2024: 126Q3 2024Q4 2024: 133Q4 2024Q1 2025: 144Q1 2025Q2 2025: 145Q2 2025Q3 2025: 153Q3 2025Q4 2025: 153Q4 2025Q1 2026: 150Q1 2026Q2 2026: 160Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions24$6.7M
Exits16$5.3M

All 13F filers, Q2 2025 → Q3 2025: 4,753,102 shares bought and 3,250,498 shares sold, net +1,502,604 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 153 holders

JPMorgan Chase & Co. 0.01% No change 52,037,577 $197.7M
Neuberger Berman Group LLC 0.05% Reduce -1.1% 18,254,045 $64.5M
Paradigm Capital Management Inc. 1.44% Add +0.0% 8,749,200 $33.2M
BlackRock, Inc. 0.00% Reduce -0.5% 7,698,805 $29.3M
Vanguard Group Inc. 0.00% Add +2.2% 7,691,070 $29.2M
Dimensional Fund Advisors LP 0.01% Reduce -0.3% 6,545,535 $24.9M
Royce & Associates LP 0.16% Add +17.2% 4,305,470 $16.4M
Geode Capital Management, LLC 0.00% Add +0.3% 2,310,451 $8.8M
State Street Corp. 0.00% Add +0.1% 2,094,513 $8.0M
Connor, Clark & Lunn Investment Management Ltd. 0.02% Add +26.4% 1,865,169 $7.1M
First Wilshire Securities Management Inc. 1.32% Reduce -1.9% 1,305,358 $5.0M
First Eagle Investment Management, LLC 0.01% Add +0.8% 1,033,914 $3.9M
Northern Trust Corp. 0.00% Reduce -0.1% 998,111 $3.8M
Arrowstreet Capital, Limited Partnership 0.00% Add +99.6% 964,446 $3.7M
HERALD INVESTMENT MANAGEMENT Ltd 0.46% No change 912,869 $3.5M
Charles Schwab Investment Management Inc. 0.00% Add +0.4% 769,487 $2.9M
Franklin Resources Inc. 0.00% Reduce -45.2% 597,663 $2.3M
D. E. Shaw & Co. 0.00% Add +41.3% 588,892 $2.2M
Cinctive Capital Management LP 0.10% New 524,067 $2.0M
Morgan Stanley 0.00% Add +96.4% 504,684 $1.9M
Jacobs Levy Equity Management, Inc. 0.01% Add +9.1% 471,201 $1.8M
Silverberg Bernstein Capital Management LLC 0.99% Add +9.0% 427,979 $1.6M
Goldman Sachs Group Inc. 0.00% Add +74.8% 424,159 $1.6M
Victory Capital Management Inc. 0.00% Reduce -27.8% 354,626 $1.3M
Raymond James Financial Inc. 0.00% Add +0.1% 348,802 $1.3M
Marshall Wace, LLP 0.00% New 346,095 $1.3M
Bank of New York Mellon Corp 0.00% Add +2.3% 335,751 $1.3M
Russell Investments Group, Ltd. 0.00% Add +62.5% 330,187 $1.3M
White Pine Capital LLC 0.33% Reduce -28.2% 300,785 $1.1M
Commonwealth Equity Services, LLC 0.00% Reduce -1.6% 285,744 $1.1M
State of Wisconsin Investment Board 0.00% Add +0.9% 278,489 $1.1M
Nuveen, LLC 0.00% Add +1.5% 273,480 $1.0M
AXA Investment Managers S.A. 0.00% — 269,401 $1.0M
Pacific Ridge Capital Partners, LLC 0.20% No change 235,329 $894K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -41.1% 218,386 $830K
Gsa Capital Partners LLP 0.07% Add +2.9% 216,283 $822K
Lazard Asset Management LLC 0.00% New 208,956 $794K
American Century Companies Inc. 0.00% Add +13.1% 208,102 $791K
Jane Street Group, LLC 0.00% Add +177.4% 200,820 $763K
Swiss National Bank 0.00% No change 185,474 $705K
Invesco Ltd. 0.00% Add +2.0% 172,866 $657K
AQR Capital Management 0.00% Reduce -24.9% 169,107 $643K
Rhumbline Advisers 0.00% Reduce -8.4% 161,815 $615K
UBS Group AG 0.00% Reduce -39.9% 161,488 $614K
Penn Capital Management Company, LLC 0.05% Add +33.6% 160,129 $608K
Barclays PLC 0.00% Reduce -22.6% 154,771 $588K
XTX Topco Ltd 0.03% Add +159.3% 150,358 $571K
Voya Investment Management LLC 0.00% Reduce -11.2% 146,942 $558K
LSV Asset Management 0.00% New 135,800 $516K
Squarepoint Ops LLC 0.00% New 127,152 $483K
Alliancebernstein L.P. 0.00% Add +5.3% 119,317 $453K
Susquehanna Portfolio Strategies, LLC 0.01% Add +264.2% 109,892 $418K
Legal & General Group Plc 0.00% No change 102,056 $388K
Ameriprise Financial Inc. 0.00% Reduce -32.7% 100,064 $380K
Sei Investments Co. 0.00% Add +1.6% 96,272 $366K
Bank of America Corp. 0.00% Reduce -13.5% 90,486 $344K
California State Teachers Retirement System 0.00% Reduce -1.1% 88,525 $336K
Polen Capital Management LLC 0.00% Reduce -33.0% 87,246 $332K
Deutsche Bank AG 0.00% Add +13.8% 81,288 $309K
Wells Fargo & Company 0.00% Add +18.1% 77,642 $295K
Bailard, Inc. 0.01% Add +13.5% 72,200 $274K
Dynamic Technology Lab Private Ltd 0.05% New 70,044 $266K
Round Rock Advisors LLC 0.04% New 74,240 $256K
T. Rowe Price Associates Inc. 0.00% Add +1.0% 60,719 $231K
Citadel Advisors 0.00% New 55,554 $211K
MetLife Investment Management, LLC 0.00% Reduce -4.7% 53,988 $205K
Public Employees Retirement System of Ohio 0.00% No change 50,945 $194K
Assenagon Asset Management S.A. 0.00% Reduce -27.8% 50,643 $192K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 47,307 $180K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -15.0% 44,714 $170K
Los Angeles Capital Management LLC 0.00% Reduce -35.1% 41,629 $158K
Intech Investment Management LLC 0.00% Reduce -50.1% 39,727 $151K
Renaissance Technologies 0.00% Add +41.1% 38,800 $147K
State Board of Administration of Florida Retirement System 0.00% No change 37,543 $143K
Janus Henderson Group PLC 0.00% No change 35,625 $136K
Focus Partners Wealth 0.00% Reduce -1.4% 35,090 $133K
Acadian Asset Management LLC 0.00% New 34,592 $131K
Manufacturers Life Insurance Company, The 0.00% Reduce -7.6% 34,032 $129K
Prelude Capital Management, LLC 0.01% Add +38.3% 32,838 $125K
EntryPoint Capital, LLC 0.05% New 32,323 $123K
Two Sigma Investments, LP 0.00% Add +49.0% 31,000 $118K
Envestnet Asset Management Inc. 0.00% Reduce -2.8% 29,054 $110K
Arizona State Retirement System 0.00% Add +1.8% 28,696 $109K
Citigroup Inc. 0.00% Reduce -47.8% 26,672 $101K
Trilogy Capital Inc. 0.00% New 24,850 $94K
HighTower Advisors, LLC 0.00% Reduce -1.3% 24,828 $94K
Police & Firemen's Retirement System of New Jersey 0.00% Add +16.3% 24,692 $94K
Essex Financial Services, Inc. 0.01% Add +1.8% 24,505 $93K
HSBC Holdings PLC 0.00% Reduce -27.8% 23,528 $88K
Creative Planning 0.00% Reduce -6.8% 22,945 $87K
New York State Common Retirement Fund 0.00% No change 22,549 $86K
MQS Management LLC 0.05% New 21,308 $81K
SG Americas Securities, LLC 0.00% New 20,496 $78K
Boothbay Fund Management, LLC 0.00% Reduce -75.0% 20,483 $78K
Vista Investment Partners LLC 0.02% No change 20,400 $78K
Simplex Trading, LLC 0.00% Add +0.3% 19,942 $75K
Ironwood Investment Management LLC 0.03% Reduce -1.3% 18,402 $70K
Susquehanna Fundamental Investments, LLC 0.00% Add +65.8% 18,401 $70K
BNP Paribas Financial Markets 0.00% Add +111.9% 18,294 $70K
NewEdge Advisors, LLC 0.00% New 17,883 $68K
STRS Ohio 0.00% No change 17,600 $67K
ProShare Advisors LLC 0.00% Reduce -16.5% 16,067 $61K
KLP Kapitalforvaltning As 0.00% No change 15,500 $59K
Brevan Howard Capital Management LP 0.00% New 15,499 $59K
Vestmark Advisory Solutions, Inc. 0.00% New 15,069 $57K
Empowered Funds, LLC 0.00% New 14,502 $55K
First Bank & Trust 0.01% No change 13,725 $52K
LPL Financial LLC 0.00% Add +20.1% 13,264 $50K
NewEdge Wealth, LLC 0.00% No change 15,069 $49K
Teacher Retirement System of Texas 0.00% Reduce -82.7% 12,441 $47K
Prudential Financial Inc. 0.00% No change 11,711 $45K
Susquehanna International Group, LLP 0.00% Reduce -90.4% 11,214 $43K
Ballentine Partners, LLC 0.00% No change 11,076 $42K
Schonfeld Strategic Advisors LLC 0.00% New 10,826 $41K
Keel Point, LLC 0.00% Reduce -3.4% 10,721 $41K
GRIMES & Co WEALTH MANAGEMENT, LLC 0.00% No change 10,030 $38K
Fortis Advisors, LLC 0.02% No change 10,000 $38K
Ameritas Investment Partners, Inc. 0.00% No change 8,663 $33K
State of Alaska, Department of Revenue 0.00% New 7,759 $29K
Sterling Capital Management LLC 0.00% Add +163.8% 6,472 $25K
Rockefeller Capital Management L.P. 0.00% New 6,194 $24K
FMR LLC 0.00% Reduce -12.5% 4,890 $19K
Farther Finance Advisors, LLC 0.00% New 4,544 $17K
Tower Research Capital LLC (TRC) 0.00% Reduce -57.0% 4,307 $16K
Arax Advisory Partners 0.00% New 4,054 $15K
Cwm, LLC 0.00% Add +11.7% 3,938 $15K
Comerica Bank 0.00% Reduce -18.0% 3,741 $14K
CANADA LIFE ASSURANCE Co 0.00% No change 3,680 $14K
Amalgamated Bank 0.00% No change 3,119 $12K
Royal Bank of Canada 0.00% Reduce -71.6% 3,216 $12K
Allworth Financial LP 0.00% Add +1.5% 2,957 $11K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Add +7.8% 2,545 $10K
US Bancorp \de 0.00% Reduce -40.9% 2,158 $8K
Medallion Wealth Advisors, LLC 0.00% No change 1,920 $7K
Community Bank, N.A. 0.00% No change 1,400 $5K
PNC Financial Services Group, Inc. 0.00% No change 1,036 $4K
Optiver Holding B.V. 0.00% New 662 $3K
Rothschild Investment LLC 0.00% No change 420 $2K
Osaic Holdings, Inc. 0.00% No change 281 $1K
Essential Partners LLC 0.00% Add +0.4% 274 $1K
True Wealth Design, LLC 0.00% Add +28.6% 256 $973
IFP Advisors, Inc 0.00% Add +441.9% 233 $885
Maryland Capital Advisors Inc. 0.00% No change 200 $760
Nisa Investment Advisors, LLC 0.00% No change 166 $631
EverSource Wealth Advisors, LLC 0.00% Reduce -22.5% 165 $627
Signaturefd, LLC 0.00% Add +101.4% 147 $559
Larson Financial Group LLC 0.00% No change 102 $388
CoreCap Advisors, LLC 0.00% No change 80 $304
TFC Financial Management, Inc. 0.00% No change 12 $46
GAMMA Investing LLC 0.00% No change 10 $38
Arlington Trust Co LLC 0.00% No change 6 $23
Clearstead Advisors, LLC 0.00% New 5 $19
SBI Securities Co., Ltd. 0.00% Reduce -99.4% 3 $11

"% of holder's portfolio" is RBBN's weight in each manager's 13F, not the share of Ribbon Communications Inc. the manager owns.