Form 4 for RBBN Ribbon Communications Inc.
Accepted 2026-04-17 08:40:09 ET · period of report 2026-04-15 · accession 0001708055-26-000024 · 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 | 2026-04-17 08:40 | 2026-04-15 | RBBN | Townsend John Raymond | EVP, CFO | M - OptEx | — | +25.6K | 103.4K | +33% | — |
| D | 2026-04-17 08:40 | 2026-04-15 | RBBN | Townsend John Raymond | EVP, CFO | F - Tax | $2.48 | -10.1K | 93.3K | -10% | -$25.0K |
| D | 2026-04-17 08:40 | 2026-04-15 | RBBN | Townsend John Raymond | EVP, CFO | M - OptEx | $0.00 | -25.6K | 76.9K | -25% | $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 | 2026-04-15 | M | A | 25,641 | — | 103,398 | D | — | — | (F1) These RSUs convert to Common Stock on a one-for-one basis. |
| 2 | Common | Common Stock | 2026-04-15 | F | D | 10,089 | $2.48 | 93,309 | D | — | — | (F2) Reflects shares of Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting. |
| 3 | Derivative | Restricted Stock Units (RSUs) | 2026-04-15 | M | D | 25,641 | $0.00 | 76,923 | D | — · — to — | 25,641 Common Stock | (F1) These RSUs convert to Common Stock on a one-for-one basis. (F3) The RSUs were granted on October 15, 2024; the remaining RSUs vest in three equal semi-annual installments through October 15, 2027. (F3) The RSUs were granted on October 15, 2024; the remaining RSUs vest in three equal semi-annual installments through October 15, 2027. |