GRAYSON BRUNS H (CIK 1204899) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-15). Recent activity: Buy RBBN (14,423 shares), Buy RBBN (42,500 shares), Buy RBBN (15,919 shares), Buy RBBN (11,718 shares), Buy RBBN (8,881 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-15 | Ribbon Communications Inc. (RBBN) | Director | Buy | 14,423 | $0 |
| 2026-06-17 | Ribbon Communications Inc. (RBBN) | Director | Buy | 42,500 | $0 |
| 2026-04-17 | Ribbon Communications Inc. (RBBN) | Director | Buy | 15,919 | $0 |
| 2026-01-20 | Ribbon Communications Inc. (RBBN) | Director | Buy | 11,718 | $0 |
| 2025-10-17 | Ribbon Communications Inc. (RBBN) | Director | Buy | 8,881 | $0 |
| 2025-07-17 | Ribbon Communications Inc. (RBBN) | Director | Buy | 8,416 | $0 |
| 2025-06-18 | Ribbon Communications Inc. (RBBN) | Director | Buy | 48,365 | $0 |
| 2025-04-17 | Ribbon Communications Inc. (RBBN) | Director | Buy | 8,609 | $0 |
Source: SEC Form 4 filings · as of 2026-07-15