Updated Jul 16, 2026 · Last SEC filing 2026-07-15
Ribbon Communications Inc. (RBBN) has filed 21 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-15. 3 Form 8-K material event filings were reported by RBBN in the last 90 days. InsiderAlpha tracks every RBBN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Services-Computer Integrated Systems Design (SIC 7373) |
|---|---|
| SEC CIK | 0001708055 |
| Form 4 filings (90d) | 21 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Latest Form 4 filing | 2026-07-15 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| SHANI SHAUL | Director | A — Grant or award | 11.8K | — | — | SEC | |
| GRAYSON BRUNS H | Director | A — Grant or award | 14.4K | — | — | SEC | |
| INFANTE BEATRIZ V | Director | M — Option exercise | 42.5K | — | — | SEC | |
| EWING R STEWART JR | Director | M — Option exercise | 42.5K | — | — | SEC | |
| Tamone Tanya | Director | M — Option exercise | 42.5K | — | — | SEC | |
| GRAYSON BRUNS H | Director | M — Option exercise | 42.5K | — | — | SEC | |
| SHANI SHAUL | Director | M — Option exercise | 42.5K | — | — | SEC | |
| Mair Scott | Director | M — Option exercise | 67.5K | — | — | SEC | |
| Marmurek Eric S | EVP, Chief Financial Officer | F — Tax withholding / forfeiture | 12.5K | $2.63 | $33K | SEC | |
| Macken Patrick W | EVP, Chief Legal Officer | F — Tax withholding / forfeiture | 14.7K | $2.63 | $39K | SEC | |
| Bucci Sam | EVP, Chief Operating Officer | M — Option exercise | 83.3K | — | — | SEC | |
| Bucci Sam | EVP, Chief Operating Officer | F — Tax withholding / forfeiture | 28.2K | $2.63 | $74K | SEC | |
| Bucci Sam | EVP, Chief Operating Officer | F — Tax withholding / forfeiture | 44.6K | $2.63 | $117K | SEC | |
| Macken Patrick W | EVP, Chief Legal Officer | F — Tax withholding / forfeiture | 24.3K | $2.63 | $64K | SEC | |
| Marmurek Eric S | EVP, Chief Financial Officer | M — Option exercise | 23.1K | — | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Ribbon Communications Inc. (RBBN). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Bucci Sam | 21 | $462K |
| Macken Patrick W | 21 | $301K |
| McClelland Bruce William | 21 | $2.38M |
| Marmurek Eric S | 21 | $199K |
| SHANI SHAUL | 5 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in RBBN insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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