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Disclosery

RBBN RIBBON COMMUNICATIONS INC

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COMMON STOCK (common), issuer CIK 1708055

142 managers (146 13F filers) reported a position in RBBN shares at 2025-06-30, 128,109,554 shares in all. 21 filers opened a position and 20 filers sold out during the quarter.

Managers
142
13F filers
146
New
21
Added
60
Reduced
34
Sold out
20
Shares held by filers
128,109,554

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO52,037,577$209M0.01%-1,29713F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC18,461,960$69.2M0.05%+150,43313F-HR/ATimelineGroup
PARADIGM CAPITAL MANAGEMENT INC/NY8,748,200$35.1M1.71%-763,00013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.7,738,835$31M<0.01%-50,07013F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC7,524,387$30.2M<0.01%+66,92013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP6,565,166$26.3M0.01%+191,83113F-HRTimelineGroup
ROYCE & ASSOCIATES LP3,672,435$14.7M0.15%+580,36713F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,303,256$9.24M<0.01%+169,40213F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,092,819$8.39M<0.01%+90,20213F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…1,476,053$5.92M0.02%+286,80313F-HRTimeline
FIRST WILSHIRE SECURITIES MANAGEMENT INC1,331,200$5.34M1.45%-6,01413F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources1,090,798$4.37M<0.01%-129,88213F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…1,025,914$4.11M0.01%+145,15913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP998,939$4.01M<0.01%+192,00113F-HRTimelineGroup
HERALD INVESTMENT MANAGEMENT Ltd912,869$3.66M0.54%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC830,148$3.33M<0.01%+585,04913F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co766,198$3.07M<0.01%+18,41713F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding639,743$2.57M+150,883Timeline
VICTORY CAPITAL MANAGEMENT INC491,177$1.97M<0.01%-114,12913F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …483,170$1.94M<0.01%-73,15413F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC432,097$1.73M0.01%+16,82913F-HRTimeline
WHITE PINE CAPITAL LLC418,957$1.68M0.53%+63,43513F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.416,687$1.67M<0.01%013F-HRTimelineGroup
Silverberg Bernstein Capital Management…392,579$1.57M1.08%+98,99613F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC348,642$1.4M<0.01%+53,21413F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp328,139$1.32M<0.01%+8,59613F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC290,276$1.16M<0.01%+1,00013F-HRTimeline
TIAAgroup of 2 filers holding284,521$1.14M-46,273Timeline
STATE OF WISCONSIN INVESTMENT BOARD275,903$1.11M<0.01%+76,61913F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY256,966$1.03M<0.01%-135,90413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC242,711$973K<0.01%-114,62913F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC235,329$944K0.23%013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC225,100$903K<0.01%+19,81313F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP210,110$843K0.06%+166,42813F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…203,224$815K<0.01%+14,78813F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC200,049$802K<0.01%+65,30713F-HR/ATimelineGroup
Swiss National Bank185,474$744K<0.01%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC184,047$738K<0.01%+37,87113F-HRTimelineGroup
RHUMBLINE ADVISERS176,592$708K<0.01%+23,40913F-HRTimeline
Invesco Ltd.in group Invesco Ltd.169,395$679K<0.01%-17,31013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC165,458$663K<0.01%-2,29613F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding157,961$633K+34,213Timeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC148,710$596K<0.01%+11,78913F-HRTimelineGroup
BANTAMAC CAPITAL, LLC130,188$523K0.19%+8,86613F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC130,188$522K<0.01%new13F-HRTimeline
Penn Capital Management Company, LLC119,815$480K0.04%+30,51613F-HRTimeline
Verition Fund Management LLC116,427$467K<0.01%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.113,317$454K<0.01%+14,43013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/104,634$420K<0.01%-216,42613F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc102,056$409K<0.01%013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO94,755$380K<0.01%-1,21513F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…89,506$359K<0.01%013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC81,937$329K0.01%+20,66513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC79,654$319K<0.01%+8,11613F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC72,396$290K<0.01%-28,81513F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS72,022$289K<0.01%+19,01313F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\71,403$286K<0.01%-5,66713F-HRTimelineGroup
Assenagon Asset Management S.A.70,123$281K<0.01%-8,20713F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN65,755$264K<0.01%+5,23713F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC64,160$257K<0.01%+5,60013F-HRTimeline
BAILARD, INC.63,600$255K0.01%+2,15513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/60,139$242K<0.01%-7,19513F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd57,995$233K0.01%-99,83313F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…56,676$227K<0.01%+18,23813F-HRTimelineGroup
Worth Venture Partners, LLC55,564$223K0.34%+5,00013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…52,590$211K<0.01%-2,34013F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC51,096$205K<0.01%-31,36413F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…50,945$204K<0.01%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…47,307$190K<0.01%+38,01113F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management46,472$186K<0.01%new13F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…37,543$151K<0.01%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …36,842$148K<0.01%+2,43613F-HRTimelineGroup
AXA S.A.in group AXA S.A.36,762$147K<0.01%013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson35,625$143K<0.01%013F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth35,585$143K<0.01%+513F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC32,599$131K<0.01%-1,50713F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC29,892$120K<0.01%-2,22113F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM28,199$113K<0.01%+55913F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC27,500$110K<0.01%-117,31213F-HRTimeline
HighTower Advisors, LLC25,147$101K<0.01%+5613F-HRTimeline
Creative Planningin group Creative Planning24,621$98.7K<0.01%+9,68213F-HRTimelineGroup
Essex Financial Services, Inc.in group Essex Financial Services, Inc.24,076$96.5K0.01%+2113F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC23,738$95.2K0.01%-9,98013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND22,549$90.4K<0.01%013F-HR/ATimeline
Police & Firemen's Retirement System of…21,239$85.2K<0.01%013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP20,811$83.5K<0.01%new13F-HRTimelineGroup
VISTA INVESTMENT PARTNERS LLC20,400$81.8K0.02%013F-HRTimeline
SIMPLEX TRADING, LLC19,880$79K<0.01%+18,68713F-HRTimeline
ProShare Advisors LLC19,236$77.1K<0.01%-58113F-HRTimeline
IRONWOOD INVESTMENT MANAGEMENT LLC18,645$74.8K0.04%-57313F-HRTimeline
STRS OHIO17,600$70.6K<0.01%013F-HRTimeline
Polymer Capital Management (US) LLC17,417$69.8K0.01%-42,15013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC16,790$67.3K<0.01%new13F-HR/ATimelineGroup
KLP KAPITALFORVALTNING AS15,500$62.2K<0.01%013F-HRTimeline
Almanack Investment Partners, LLC.14,550$58.3K0.01%new13F-HRTimeline
NewEdge Wealth, LLC15,069$57K<0.01%-6113F-HRTimeline
First Bank & Trust13,725$55K0.01%-15,53713F-HRTimeline
Engineers Gate Manager LP13,176$52.8K<0.01%new13F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP12,534$50.3K0.01%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC11,711$47K<0.01%new13F-HRTimelineGroup
CIBC WORLD MARKETS CORP11,558$46.3K<0.01%-8,75513F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA11,318$46K<0.01%+5,44113F-HR/ATimelineGroup
Keel Point, LLC11,102$44.5K<0.01%new13F-HRTimeline
Ballentine Partners, LLC11,076$44.4K<0.01%new13F-HRTimeline
LPL Financial LLC11,041$44.3K<0.01%new13F-HRTimeline
GRIMES & Co WEALTH MANAGEMENT, LLC10,030$40.2K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…10,025$40.2K<0.01%+8,21313F-HRTimelineGroup
Integrated Wealth Concepts LLC10,022$40.2K<0.01%new13F-HRTimeline
Fortis Advisors, LLC10,000$40.1K0.03%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…8,663$34.7K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS8,632$34.6K<0.01%-33,67213F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…6,477$26K<0.01%013F-HRTimelineGroup
FMR LLCin group FMR LLC5,591$22.4K<0.01%-1,74713F-HRTimelineGroup
COMERICA BANK4,563$18.3K<0.01%+44313F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co3,680$15K<0.01%013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\3,651$14.6K<0.01%+1,06813F-HRTimelineGroup
CWM, LLCin group CWM, LLC3,525$14K<0.01%+83513F-HRTimelineGroup
AMALGAMATED BANK3,119$13K<0.01%013F-HRTimeline
Allworth Financial LP2,913$11.7K<0.01%+21213F-HRTimeline
Sterling Capital Management LLC2,453$9.84K<0.01%+87313F-HR/ATimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …2,362$9K<0.01%new13F-HRTimelineGroup
Medallion Wealth Advisors, LLC1,920$8.03K<0.01%013F-HRTimeline
Community Bank, N.A.1,400$5.6K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,036$4.15K<0.01%013F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC818$3K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …549$2.2K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.500$2K<0.01%new13F-HRTimeline
IFP Advisors, Inc43$1.78K<0.01%+3313F-HRTimeline
ROTHSCHILD INVESTMENT LLC420$1.68K<0.01%+14513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.281$1.13K<0.01%+1513F-HR/ATimelineGroup
Essential Partners LLC273$1.09K<0.01%13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…213$854<0.01%+8513F-HRTimelineGroup
MARYLAND CAPITAL ADVISORS INC.200$802<0.01%013F-HRTimeline
True Wealth Design, LLC199$798<0.01%+16613F-HRTimeline
NISA INVESTMENT ADVISORS, LLC166$666<0.01%-25113F-HRTimeline
Larson Financial Group LLC102$409<0.01%+913F-HRTimeline
CoreCap Advisors, LLC80$321<0.01%013F-HRTimeline
SIGNATUREFD, LLC73$293<0.01%new13F-HRTimeline
TFC Financial Management, Inc.12$49<0.01%013F-HRTimeline
GAMMA Investing LLC10$40<0.01%new13F-HRTimeline
Arlington Trust Co LLCin group Arlington Trust Co LLC6$24<0.01%013F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.