Ribbon Communication shares owned by Vanguard Portfolio Management
Quarter-by-quarter ownership of Ribbon Communication (RBBN) shares owned by Vanguard Portfolio Management
from 13F filings
Historical chart of Vanguard Portfolio Management investment in Ribbon Communication
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Quarterly reported holdings in Ribbon Communication by Vanguard Portfolio Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $7.1M | 3.3M | 2.12 |
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