Stocktoria
Ribbon Communications Inc. RBBN
Nasdaq · XNAS · stock · Services-Computer Integrated Systems Design · website · IPO 2004-09-13
Ribbon Communications Inc. institutional holders (13F)
| Investor | Shares | Value |
|---|---|---|
| BlackRock Finance, Inc. | 7,383,934 | $24.3M |
| D. E. Shaw & Co., Inc. | 1,538,472 | $3.3M |
| AQR CAPITAL MANAGEMENT LLC | 1,257,347 | $2.7M |
| CITADEL ADVISORS LLC | 592,789 | $1.3M |
| MILLENNIUM MANAGEMENT LLC | 491,320 | $1.0M |
Source: SEC EDGAR filings · CIK 0001708055 · as of 2025-12-31. Facts from filings plus Stocktoria's own computed scores — not investment advice.