Ribbon CommunicationsRBBN

13F holders, Q4 2025 (December 31)
153holders
22new positions
24sold out
4famous investors
$2.85avg. 13F price*

At the end of Q4 2025, 153 institutions reported holding Ribbon Communications Inc. (RBBN) in their 13F filings, unchanged from Q3 2025. 22 opened new positions and 24 sold out. The largest holders were JPMorgan Chase & Co. ($149.9M), Neuberger Berman Group LLC ($46.0M) and Paradigm Capital Management Inc. ($24.0M). 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 Israel Englander (0.0% of Millennium Management'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 Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions22$3.9M
Exits24$6.7M

All 13F filers, Q3 2025 → Q4 2025: 5,191,061 shares bought and 5,176,886 shares sold, net +14,175 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 $149.9M
Neuberger Berman Group LLC 0.03% Reduce -4.5% 17,431,102 $46.0M
Paradigm Capital Management Inc. 1.01% Reduce -4.9% 8,323,298 $24.0M
Vanguard Group Inc. 0.00% Add +1.9% 7,833,009 $22.6M
BlackRock, Inc. 0.00% Reduce -0.4% 7,665,925 $22.1M
Dimensional Fund Advisors LP 0.00% Reduce -1.1% 6,475,125 $18.6M
Royce & Associates LP 0.13% Add +7.2% 4,614,741 $13.3M
Geode Capital Management, LLC 0.00% Reduce -0.3% 2,302,573 $6.6M
State Street Corp. 0.00% Add +0.3% 2,099,793 $6.0M
Connor, Clark & Lunn Investment Management Ltd. 0.02% Add +7.0% 1,995,845 $5.7M
First Wilshire Securities Management Inc. 0.92% Reduce -2.9% 1,267,586 $3.7M
Arrowstreet Capital, Limited Partnership 0.00% Add +6.8% 1,029,716 $3.0M
D. E. Shaw & Co. 0.00% Add +66.4% 979,841 $2.8M
Northern Trust Corp. 0.00% Reduce -7.6% 922,554 $2.7M
Jacobs Levy Equity Management, Inc. 0.01% Add +88.9% 890,168 $2.6M
First Eagle Investment Management, LLC 0.00% Reduce -16.6% 862,528 $2.5M
HERALD INVESTMENT MANAGEMENT Ltd 0.30% Reduce -12.4% 800,000 $2.3M
Goldman Sachs Group Inc. 0.00% Add +85.7% 787,493 $2.3M
Charles Schwab Investment Management Inc. 0.00% Reduce -0.1% 769,074 $2.2M
Acadian Asset Management LLC 0.00% Add +2100.4% 761,165 $2.2M
Kennedy Capital Management LLC 0.04% New 710,703 $2.0M
AQR Capital Management 0.00% Add +190.6% 491,471 $1.4M
Silverberg Bernstein Capital Management LLC 0.73% Add +1.9% 436,023 $1.3M
Morgan Stanley 0.00% Reduce -22.3% 392,391 $1.1M
Bank of New York Mellon Corp 0.00% Add +16.2% 389,994 $1.1M
Jane Street Group, LLC 0.00% Add +89.0% 379,465 $1.1M
Victory Capital Management Inc. 0.00% Reduce -1.4% 349,543 $1.0M
State of Wisconsin Investment Board 0.00% Add +11.4% 310,366 $894K
Gsa Capital Partners LLP 0.07% Add +33.0% 287,583 $828K
Commonwealth Equity Services, LLC 0.00% Reduce -0.3% 284,744 $820K
Pacific Ridge Capital Partners, LLC 0.16% Add +4.6% 246,129 $709K
American Century Companies Inc. 0.00% Add +2.8% 213,946 $616K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% Reduce -2.6% 212,624 $612K
Barclays PLC 0.00% Add +30.8% 202,461 $583K
ExodusPoint Capital Management, LP 0.01% New 198,191 $571K
UBS Group AG 0.00% Add +18.5% 191,370 $551K
Swiss National Bank 0.00% No change 185,474 $534K
Nuveen, LLC 0.00% Reduce -35.6% 176,235 $508K
Marshall Wace, LLP 0.00% Reduce -49.8% 173,702 $500K
Invesco Ltd. 0.00% Reduce -2.3% 168,915 $486K
Voya Investment Management LLC 0.00% Add +1.8% 149,560 $431K
Bank of America Corp. 0.00% Add +63.2% 147,689 $425K
Sei Investments Co. 0.00% Add +45.5% 140,047 $403K
LSV Asset Management 0.00% No change 135,800 $391K
Ameriprise Financial Inc. 0.00% Add +28.9% 128,975 $371K
Rhumbline Advisers 0.00% Reduce -20.7% 128,287 $369K
EntryPoint Capital, LLC 0.14% Add +285.4% 124,573 $359K
Alliancebernstein L.P. 0.00% Reduce -0.1% 119,250 $343K
Wells Fargo & Company 0.00% Add +42.7% 110,798 $319K
Susquehanna Portfolio Strategies, LLC 0.00% No change 109,892 $316K
XTX Topco Ltd 0.01% Reduce -31.6% 102,885 $296K
Legal & General Group Plc 0.00% Reduce -7.6% 94,343 $272K
Dynamic Technology Lab Private Ltd 0.06% Add +30.0% 91,026 $262K
California State Teachers Retirement System 0.00% Reduce -0.1% 88,452 $255K
Russell Investments Group, Ltd. 0.00% Reduce -73.5% 87,532 $252K
Deutsche Bank AG 0.00% Add +5.4% 85,667 $247K
Bailard, Inc. 0.00% Add +3.6% 74,800 $215K
Franklin Resources Inc. 0.00% Reduce -88.1% 71,204 $205K
T. Rowe Price Associates Inc. 0.00% Add +15.0% 69,822 $202K
Trilogy Capital Inc. 0.01% Add +163.0% 65,360 $188K
Public Employees Retirement System of Ohio 0.00% Add +19.0% 60,645 $175K
Oxford Asset Management LLP 0.06% New 55,568 $160K
Engineers Gate Manager LP 0.00% New 55,480 $160K
Susquehanna Fundamental Investments, LLC 0.01% Add +196.4% 54,537 $157K
Millennium Management 0.00% New 54,306 $156K
Citadel Advisors 0.00% Reduce -3.0% 53,903 $155K
Los Angeles Capital Management LLC 0.00% Add +1.8% 42,367 $142K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% No change 47,307 $136K
Qube Research & Technologies Ltd 0.00% New 44,058 $127K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -2.5% 43,577 $126K
SG Americas Securities, LLC 0.00% Add +102.7% 41,537 $120K
Prelude Capital Management, LLC 0.01% Add +24.1% 40,738 $117K
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% Add +1497.9% 40,666 $117K
Verition Fund Management LLC 0.00% New 40,496 $117K
Assenagon Asset Management S.A. 0.00% Reduce -20.3% 40,355 $116K
State Board of Administration of Florida Retirement System 0.00% No change 37,543 $108K
MetLife Investment Management, LLC 0.00% Reduce -30.9% 37,319 $107K
Janus Henderson Group PLC 0.00% No change 35,625 $103K
Focus Partners Wealth 0.00% Add +0.0% 35,100 $101K
Citigroup Inc. 0.00% Add +25.0% 33,340 $96K
WINTON GROUP Ltd 0.00% New 33,095 $95K
Manufacturers Life Insurance Company, The 0.00% Reduce -8.1% 31,286 $90K
Two Sigma Securities, LLC 0.01% New 30,746 $89K
Global Retirement Partners, LLC 0.00% New 29,778 $86K
Arizona State Retirement System 0.00% Reduce -4.6% 27,369 $79K
Intech Investment Management LLC 0.00% Reduce -31.8% 27,087 $78K
Envestnet Asset Management Inc. 0.00% Reduce -8.1% 26,714 $77K
State of Alaska, Department of Revenue 0.00% Add +227.2% 25,390 $72K
Police & Firemen's Retirement System of New Jersey 0.00% No change 24,692 $71K
Essex Financial Services, Inc. 0.00% Add +0.1% 24,518 $71K
New York State Common Retirement Fund 0.00% No change 22,549 $65K
Rpo LLC 0.08% New 22,208 $64K
NewEdge Advisors, LLC 0.00% Add +24.0% 22,179 $64K
KLP Kapitalforvaltning As 0.00% Add +34.2% 20,800 $60K
Vista Investment Partners LLC 0.02% No change 20,400 $59K
BNP Paribas Financial Markets 0.00% Add +7.7% 19,708 $57K
Ironwood Investment Management LLC 0.02% Reduce -0.3% 18,350 $53K
Brevan Howard Capital Management LP 0.00% Add +17.6% 18,219 $52K
Amundi 0.00% New 17,768 $51K
STRS Ohio 0.00% No change 17,600 $51K
Jones Financial Companies LLLP 0.00% New 17,268 $50K
ProShare Advisors LLC 0.00% Add +6.7% 17,143 $49K
Two Sigma Investments, LP 0.00% Reduce -45.2% 16,984 $49K
Sherbrooke Park Advisers LLC 0.12% New 15,656 $45K
Tower Research Capital LLC (TRC) 0.00% Add +243.3% 14,787 $43K
LPL Financial LLC 0.00% Add +4.9% 13,912 $40K
White Pine Capital LLC 0.01% Reduce -95.6% 13,335 $38K
FMR LLC 0.00% Add +171.4% 13,273 $38K
nVerses Capital, LLC 0.08% — 12,987 $37K
JMN Financial LLC 0.04% — 12,475 $36K
DGS Capital Management, LLC 0.01% New 12,475 $36K
Boothbay Fund Management, LLC 0.00% Reduce -45.8% 11,104 $32K
Mackenzie Financial Corp. 0.00% New 10,652 $31K
Keel Point, LLC 0.00% No change 10,721 $31K
Indivisible Partners 0.00% — 10,257 $30K
GRIMES & Co WEALTH MANAGEMENT, LLC 0.00% No change 10,030 $29K
Fortis Advisors, LLC 0.02% No change 10,000 $29K
Kathmere Capital Management, LLC 0.00% New 10,000 $29K
Ameritas Investment Partners, Inc. 0.00% No change 8,663 $25K
Osaic Holdings, Inc. 0.00% Add +2596.4% 7,577 $22K
Rockefeller Capital Management L.P. 0.00% Add +3.5% 6,408 $18K
Sterling Capital Management LLC 0.00% Reduce -16.5% 5,407 $16K
Comerica Bank 0.00% Add +28.1% 4,792 $14K
Farther Finance Advisors, LLC 0.00% Reduce -0.5% 4,522 $13K
CANADA LIFE ASSURANCE Co 0.00% No change 3,680 $11K
Royal Bank of Canada 0.00% Reduce -3.2% 3,114 $9K
Allworth Financial LP 0.00% Add +1.6% 3,005 $9K
Amalgamated Bank 0.00% Reduce -5.5% 2,947 $8K
Simplex Trading, LLC 0.00% Reduce -87.0% 2,586 $7K
US Bancorp \de 0.00% Reduce -3.4% 2,085 $6K
Cwm, LLC 0.00% Reduce -44.3% 2,194 $6K
Medallion Wealth Advisors, LLC 0.00% No change 1,920 $6K
CIBC Private Wealth Group LLC 0.00% New 1,697 $5K
Community Bank, N.A. 0.00% No change 1,400 $4K
PNC Financial Services Group, Inc. 0.00% Add +2.6% 1,063 $3K
Colonial Trust Advisors 0.00% New 1,000 $3K
Arax Advisory Partners 0.00% Reduce -82.3% 718 $2K
Parallel Advisors, LLC 0.00% New 207 $596
Larson Financial Group LLC 0.00% Add +67.7% 171 $492
Rothschild Investment LLC 0.00% Reduce -59.5% 170 $490
Quadrant Capital Group LLC 0.00% New 168 $484
IFP Advisors, Inc 0.00% Reduce -30.0% 163 $469
Nisa Investment Advisors, LLC 0.00% Reduce -5.4% 157 $452
CoreCap Advisors, LLC 0.00% No change 80 $230
MAI Capital Management 0.00% New 78 $225
GAMMA Investing LLC 0.00% Add +420.0% 52 $150
Signaturefd, LLC 0.00% Reduce -74.2% 38 $109
Essential Partners LLC 0.00% Reduce -95.3% 13 $37
TFC Financial Management, Inc. 0.00% No change 12 $35
SBI Securities Co., Ltd. 0.00% Add +200.0% 9 $26
Arlington Trust Co LLC 0.00% No change 6 $17
True Wealth Design, LLC 0.00% Reduce -98.8% 3 $9
EverSource Wealth Advisors, LLC 0.00% Reduce -98.8% 2 $6

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