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Public ownership evidence

Ribbon Communications Inc. Common Stock (RBBN) Ownership Disclosures

Read RBBN insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T02:54:47.600Z

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Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

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90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,291$3,021None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,021$1,291,000None
Assenagon Asset Management S.A.2026-06-302026-08-2237,927$88,749None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2011,794$27,598None
Empowered Funds, LLC2026-06-302026-08-1894,418$220,938None
Transamerica Financial Advisors, LLC2026-06-302026-08-1812$28None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1860,645$141,909None
SEI INVESTMENTS CO2026-06-302026-08-1576,445$178,880None
SEI INVESTMENTS CO2026-06-302026-08-151,903$4,453None
JPL Wealth Management, LLC2026-06-302026-08-154$10None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1524,339$56,953None
Basecamp Wealth Advisors LLC2026-06-302026-08-1519$44None
Polymer Capital Management (US) LLC2026-06-302026-08-1528,355$66,351None
XTX Topco Ltd2026-06-302026-08-15323,307$756,538None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15800,159$1,872,372None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15800,159$1,872,372None
ExodusPoint Capital Management, LP2026-06-302026-08-15172,615$403,919None
Qube Research & Technologies Ltd2026-06-302026-08-15137,899$322,684None
OSAIC HOLDINGS, INC.2026-06-302026-08-157,416$17,353None
OSAIC HOLDINGS, INC.2026-06-302026-08-15161$375None
Squarepoint Ops LLC2026-06-302026-08-15191,402$447,881None
MetLife Investment Management, LLC2026-06-302026-08-1553,013$124,050None
JANE STREET GROUP, LLC2026-06-302026-08-1521,881$51,202None
Legal & General Group Plc2026-06-302026-08-158,432$19,731None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1517,600$41,184Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1547,175$110,390None
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC2026-06-302026-08-1546,661$109,187None
Medallion Wealth Advisors, LLC2026-06-302026-08-151,920$4,493None
IRONWOOD INVESTMENT MANAGEMENT LLC2026-06-302026-08-1518,030$42,190None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15698,458$1,634,392None
Balyasny Asset Management L.P.2026-06-302026-08-1516,288$38,114None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-1522,484$49,465None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1520$47None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15103,367$241,879None
Vestmark Advisory Solutions, Inc.2026-06-302026-08-1516,260$38,048None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152,020$4,727None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151,406,379$3,290,927None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15600$1,404None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1519$44None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15749$1,753None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1528$66None
MANUFACTURERS LIFE INSURANCE COMPANY, THE2026-06-302026-08-1525,567$59,827None
ROYAL BANK OF CANADA2026-06-302026-08-1511,795$28,000None
ROYAL BANK OF CANADA2026-06-302026-08-152,810$7,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-15138,173$292,927None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-1594,418$220,938None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1511,400$26,676None
D. E. Shaw & Co., Inc.2026-06-302026-08-151,702,036$3,982,764None
D. E. Shaw & Co., Inc.2026-06-302026-08-1588,339$206,713None
CITADEL ADVISORS LLC2026-06-302026-08-1577,264$180,798None

90-day public filing window, up to 50 source positions.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗MERCER GLOBAL ADVISORS INC /ADV ↗Empowered Funds, LLC ↗Transamerica Financial Advisors, LLC ↗PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO ↗SEI INVESTMENTS CO ↗SEI INVESTMENTS CO ↗JPL Wealth Management, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.