# RIBBON COMMUNICATIONS INC (RBBN) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 762544104
Page URL: https://superinvestorclub.com/stock/RBBN
Last updated: 2026-07-27T03:19:01.231Z

## Summary

As of the most recent 13F filing period, RIBBON COMMUNICATIONS INC (RBBN) is held by 0 tracked superinvestors with an aggregate position value of $0 representing 0 shares.

## Top institutional holders (0)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|

## Ownership history (quarter-over-quarter)

- 2024-09-30: 1 holders, $231,657 aggregate, 071279 shares
- 2024-12-31: 1 holders, $3.4M aggregate, 0819369 shares
- 2025-03-31: 1 holders, $3.5M aggregate, 0880755 shares
- 2025-06-30: 2 holders, $4.6M aggregate, 01025914130188 shares
- 2025-09-30: 2 holders, $4.3M aggregate, 0103391487246 shares
- 2025-12-31: 1 holders, $2.5M aggregate, 0862528 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "RIBBON COMMUNICATIONS INC (RBBN) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/RBBN), aggregating SEC 13F, Form 4, and congressional disclosures."