# RIBBON COMMUNICATIONS INC COMMON

RIBBON COMMUNICATIONS INC COMMON is a security (CUSIP 762544104) tracked across SEC portfolio filings. 150 institutional managers reported $269.2M on Form 13F as of 2026-06-30; 14 registered fund positions totaling $8.2M via N-PORT as of 2026-05-31.

## Summary

- Issuer: RIBBON COMMUNICATIONS INC
- Class: COMMON
- CUSIP: 762544104
- Asset category: EC
- 13F holders: 150
- 13F value: $269.2M
- 13F period: 2026-06-30
- N-PORT fund positions: 14
- N-PORT value: $8.2M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 150 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| JPMORGAN CHASE & CO | NEW YORK, NY | $108.0M | 52,043,036 |
| NEUBERGER BERMAN GROUP LLC | NEW YORK, NY | $33.2M | 17,361,988 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $22.6M | 7,833,009 |
| [PARADIGM CAPITAL MANAGEMENT INC/NY](https://search.stillhousedata.com/firm/107982) | ALBANY, NY | $17.0M | 8,036,335 |
| BlackRock, Inc. | New York, NY | $14.3M | 6,724,007 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $13.5M | 6,351,110 |
| [ROYCE & ASSOCIATES LP](https://search.stillhousedata.com/firm/107689) | New York, NY | $10.3M | 4,879,741 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $5.1M | 2,414,560 |
| [Connor, Clark & Lunn Investment Management Ltd.](https://search.stillhousedata.com/firm/107557) | VANCOUVER, A1 | $4.4M | 2,089,722 |
| STATE STREET CORP | BOSTON, MA | $4.0M | 1,910,027 |
| D. E. Shaw & Co., Inc. | New York, NY | $3.3M | 1,538,472 |
| [FIRST WILSHIRE SECURITIES MANAGEMENT INC](https://search.stillhousedata.com/firm/171971) | PASADENA, CA | $3.0M | 1,407,178 |
| [AQR CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/111883) | Greenwich, CT | $2.7M | 1,257,347 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $2.6M | 1,216,876 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $1.6M | 769,787 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $2.1M | 0.26% |
| ROYCE MICRO-CAP TRUST, INC. | ROYCE MICRO-CAP TRUST, INC. | $1.9M | 28.23% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1.5M | 0.85% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $1.2M | 1.59% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $365K | 3.71% |
| [Paradigm Micro-Cap Fund](https://search.stillhousedata.com/fund/S000020362) | PARADIGM FUNDS | $346K | 26.00% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $332K | 0.69% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $187K | 0.06% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $113K | 0.02% |
| [Invesco NASDAQ Future Gen 200 ETF](https://search.stillhousedata.com/fund/S000077288) | Invesco Exchange-Traded Fund Trust II | $106K | 56.14% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $27K | 0.65% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $5K | 0.04% |
| [Longview Advantage ETF](https://search.stillhousedata.com/fund/S000086399) | RBB Fund Trust | $2K | 0.03% |
| Guggenheim Active Allocation Fund | Guggenheim Active Allocation Fund | $1K | 0.02% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/762544104.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.