Skip to main content
Equibles
RBBN logo

RBBN

Ribbon Communications Inc.
$2.19 -0.15 (-6.41%) At close · Jul 15
Market Cap
$385.74M
Shares
176,139,067

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 148
Total Value: $267,390,687
Total Shares: 126,074,806
Showing 1–100 of 151 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 149 13F filers
Top Holder
41.3%
Jun 2023 → Mar 2026 · range 40.0% – 42.5%
of institutional value
Top 5
71.8%
Jun 2023 → Mar 2026 · range 71.8% – 77.0%
of institutional value
Top 10
84.1%
Jun 2023 → Mar 2026 · range 84.0% – 87.9%
of institutional value
HHI
2,031
Jun 2023 → Mar 2026 · range 1,952 – 2,182
Moderately concentrated
Showing 100 of 151
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega JPMORGAN CHASE & CO $110,331,235 41.26% 52,043,036
Mega NEUBERGER BERMAN GROUP LLC $36,807,413 13.77% 17,361,988
Mid PARADIGM CAPITAL MANAGEMENT INC/NY $17,037,029 6.37% 8,036,335
Mega BlackRock, Inc. $14,254,890 5.33% 6,724,007
Mega DIMENSIONAL FUND ADVISORS LP $13,464,351 5.04% 6,351,110
Mid ROYCE & ASSOCIATES LP $10,345,050 3.87% 4,879,741
Mega VANGUARD CAPITAL MANAGEMENT LLC $8,938,893 3.34% 4,216,459
Mega GEODE CAPITAL MANAGEMENT, LLC $5,118,867 1.91% 2,414,560
Large Connor, Clark & Lunn Investment Management Ltd. $4,430,210 1.66% 2,089,722
Mega STATE STREET CORP $4,049,257 1.51% 1,910,027
Mega D. E. Shaw & Co., Inc. $3,261,560 1.22% 1,538,472
Large ACADIAN ASSET MANAGEMENT LLC $3,049,598 1.14% 1,438,490
Small FIRST WILSHIRE SECURITIES MANAGEMENT INC Broker-Dealer $2,983,217 1.12% 1,407,178
Mega AQR CAPITAL MANAGEMENT LLC $2,665,572 1.00% 1,257,347
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $2,579,777 0.96% 1,216,876
Large MARSHALL WACE, LLP $1,631,947 0.61% 769,787
Mega GOLDMAN SACHS GROUP INC $1,578,858 0.59% 744,745
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $1,501,305 0.56% 708,163
Mega NORTHERN TRUST CORP Bank $1,496,418 0.56% 705,858
Large JACOBS LEVY EQUITY MANAGEMENT, INC $1,452,857 0.54% 685,310
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,245,349 0.47% 587,429
Mega CITADEL ADVISORS LLC $1,218,976 0.46% 574,989
Mega MILLENNIUM MANAGEMENT LLC $1,041,598 0.39% 491,320
Small Silverberg Bernstein Capital Management LLC $980,045 0.37% 418,823
Mega MORGAN STANLEY $897,743 0.34% 423,465
Mega VICTORY CAPITAL MANAGEMENT INC $895,384 0.33% 422,351
Mega Bank of New York Mellon Corp Bank $800,011 0.30% 377,364
Large Russell Investments Group, Ltd. $745,968 0.28% 351,873
Mid GSA CAPITAL PARTNERS LLP $620,642 0.23% 292,756
Large COMMONWEALTH EQUITY SERVICES, LLC $603,612 0.23% 284,723
Small Pacific Ridge Capital Partners, LLC $521,893 0.20% 246,176
Mega AMERICAN CENTURY COMPANIES INC $450,209 0.17% 212,363
Mega BANK OF AMERICA CORP /DE/ Bank $441,447 0.17% 208,230
Large VOYA INVESTMENT MANAGEMENT LLC $440,321 0.16% 207,699
Mid OP Asset Management Ltd $438,420 0.16% 206,802
Large ExodusPoint Capital Management, LP $417,444 0.16% 196,908
Mega UBS Group AG $408,841 0.15% 192,850
Mega Invesco Ltd. $385,505 0.14% 181,843
Mega Nuveen, LLC $375,665 0.14% 177,201
Mid XTX Topco Ltd $341,197 0.13% 160,942
Mega UBS Group AG $300,192 0.11% 141,600
Small EntryPoint Capital, LLC $297,444 0.11% 140,304
Mid Engineers Gate Manager LP $296,719 0.11% 139,962
Large LSV ASSET MANAGEMENT $287,896 0.11% 135,800
Mega RHUMBLINE ADVISERS $272,218 0.10% 128,405
Mega Vanguard Global Advisers, LLC $267,666 0.10% 126,258
Mega ALLIANCEBERNSTEIN L.P. $254,715 0.10% 120,149
Mega FRANKLIN RESOURCES INC $230,588 0.09% 108,769
Mega AMERIPRISE FINANCIAL INC $227,866 0.09% 107,484
Mega BARCLAYS PLC $215,884 0.08% 101,833
Small HERALD INVESTMENT MANAGEMENT Ltd $212,000 0.08% 100,000
Mid Susquehanna Portfolio Strategies, LLC $197,562 0.07% 93,190
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $187,049 0.07% 88,231
Large Empowered Funds, LLC $187,049 0.07% 88,231
Large SEI INVESTMENTS CO $173,216 0.06% 81,706
Mega PRICE T ROWE ASSOCIATES INC /MD/ $148,022 0.06% 69,822
Large Creative Planning $137,571 0.05% 64,892
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $128,567 0.05% 60,645
Small Dynamic Technology Lab Private Ltd $126,129 0.05% 59,495
Small State of Wyoming $116,457 0.04% 54,933
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $115,618 0.04% 54,537
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $110,729 0.04% 52,231
Large Vident Advisory, LLC $106,407 0.04% 50,192
Mid WINTON GROUP Ltd $106,243 0.04% 50,115
Mid PRELUDE CAPITAL MANAGEMENT, LLC $103,960 0.04% 49,038
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $94,664 0.04% 44,653
Large Assenagon Asset Management S.A. $88,749 0.03% 37,927
Large MetLife Investment Management, LLC $83,655 0.03% 39,460
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $79,591 0.03% 37,543
Mega WELLS FARGO & COMPANY/MN $79,368 0.03% 37,438
Mega CITIGROUP INC $77,520 0.03% 36,567
Large SG Americas Securities, LLC Broker-Dealer $68,181 0.03% 32,161
Small Polymer Capital Management (US) LLC $67,579 0.03% 31,877
Large Focus Partners Wealth $66,593 0.02% 31,412
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $58,732 0.02% 27,704
Mega ENVESTNET ASSET MANAGEMENT INC $56,131 0.02% 26,477
Small Abacus Wealth Partners, LLC $55,312 0.02% 26,091
Mid Virtu Financial LLC $54,496 0.02% 25,706
Mid State of Alaska, Department of Revenue $53,826 0.02% 25,390
Mega DEUTSCHE BANK AG\ Bank $53,809 0.02% 25,382
Large Police & Firemen's Retirement System of New Jersey Pension $52,347 0.02% 24,692
Mid Essex Financial Services, Inc. $52,281 0.02% 24,661
Large Mariner, LLC $48,957 0.02% 23,093
Small TWO SIGMA SECURITIES, LLC Broker-Dealer $48,683 0.02% 22,964
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $48,124 0.02% 22,700
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $47,803 0.02% 22,549
Small VISTA INVESTMENT PARTNERS LLC $47,736 0.02% 20,400
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $47,413 0.02% 20,262
Mid INTECH INVESTMENT MANAGEMENT LLC $46,512 0.02% 21,940
Large Schonfeld Strategic Advisors LLC $46,182 0.02% 21,784
Mega BNP PARIBAS ARBITRAGE, SA $42,476 0.02% 20,036
Large JONES FINANCIAL COMPANIES LLLP $40,530 0.02% 19,118
Small IRONWOOD INVESTMENT MANAGEMENT LLC $38,299 0.01% 18,066
Mega CITADEL ADVISORS LLC $37,736 0.01% 17,800
Large STRS OHIO $37,312 0.01% 17,600
Mid Vestmark Advisory Solutions, Inc. $34,471 0.01% 16,260
Mid NewEdge Wealth, LLC $34,471 0.01% 16,260
Small SEVEN MILE ADVISORY $33,869 0.01% 15,976
Mega LPL Financial LLC $33,074 0.01% 15,601
Large PRUDENTIAL FINANCIAL INC $31,032 0.01% 14,638
Key facts CIK 1708055 CUSIP 762544104 13F (30d) 8 filings 8 filers Visit website Investor relations

Report a Problem

Category
Description
Email (optional, for follow-up)