| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| INFANTE BEATRIZ V | Director | C/O RIBBON COMMUNICATIONS, 6500 CHASE OAKS BLVD., PLANO | Patrick Macken, By POA for Beatriz Infante | 08 Sep 2025 | 0001193369 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBBN | Common Stock | Sale | $34,597 | -8,690 | -2.5% | $3.98 | 343,224 | 05 Sep 2025 | Direct |