Form 4 for RBBN Ribbon Communications Inc.
Accepted 2026-06-17 16:42:48 ET · period of report 2026-06-15 · accession 0001708055-26-000052 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-17 16:42 | 2026-06-16 | RBBN | Mair Scott | Dir | M - OptEx | — | +67.5K | 208.1K | +48% | — |
| D | 2026-06-17 16:42 | 2026-06-15 | RBBN | Mair Scott | Dir | A - Grant | $0.00 | +63.2K | 63.2K | New | $0 |
| D | 2026-06-17 16:42 | 2026-06-16 | RBBN | Mair Scott | Dir | M - OptEx | $0.00 | -67.5K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-16 | M | A | 67,500 | — | 208,138 | D | — | — | (F1) Each RSU represents a contingent right to receive one share of the Issuer's common stock. |
| 2 | Derivative | Restricted Stock Units (RSUs) | 2026-06-15 | A | A | 63,197 | $0.00 | 63,197 | D | — · — to — | 63,197 Common Stock | (F1) Each RSU represents a contingent right to receive one share of the Issuer's common stock. (F2) The RSUs will vest on June 15, 2027, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2027 Annual Meeting of Stockholders (the "2027 Annual Meeting") occurs prior to June 15, 2027, and, at such 2027 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2027 Annual Meeting. (F2) The RSUs will vest on June 15, 2027, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2027 Annual Meeting of Stockholders (the "2027 Annual Meeting") occurs prior to June 15, 2027, and, at such 2027 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2027 Annual Meeting. |
| 3 | Derivative | RSUs | 2026-06-16 | M | D | 67,500 | $0.00 | 0 | D | — · — to — | 67,500 Common Stock | (F1) Each RSU represents a contingent right to receive one share of the Issuer's common stock. (F3) The RSUs were awarded on June 16, 2025 and vested in full on June 16, 2026. (F3) The RSUs were awarded on June 16, 2025 and vested in full on June 16, 2026. |