RBBN · Insider Trading
Ribbon Communications Inc. Common Stock
Every open-market purchase and sale reported by RBBN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-19 | Bruns H Grayson | Director | A | +19,176 | — |
| 2026-10-19 | Eric S Marmurek | EVP, Chief Financial Officer | MIXED | +22,744 | −$21.54K |
| 2026-10-19 | Shaul Shani | Director | MIXED | +200,835 | — |
| 2026-07-15 | Shaul Shani | Director | A | +11,752 | — |
| 2026-07-15 | Bruns H Grayson | Director | A | +14,423 | — |
| 2026-06-17 | Eric S Marmurek | EVP, Chief Financial Officer | A | +300,000 deriv. | — |
| 2026-06-17 | Patrick W Macken | EVP, Chief Legal Officer | A | +325,000 deriv. | — |
| 2026-06-17 | R Stewart Ewing Jr | Director | M | +42,500 | — |
| 2026-06-17 | Scott Mair | Director | M | +67,500 | — |
| 2026-06-17 | Stephen J. McCaffery | EVP, Global Sales | A | +400,000 deriv. | — |
| 2026-06-17 | Bruns H Grayson | Director | M | +42,500 | — |
| 2026-06-17 | Shaul Shani | Director | M | +42,500 | — |
| 2026-06-17 | Sam Bucci | EVP, Chief Operating Officer | A | +500,000 deriv. | — |
| 2026-06-17 | Beatriz V Infante | Director | M | +42,500 | — |
| 2026-06-17 | Louis Silver | Director | A | +63,197 deriv. | — |
| 2026-06-17 | Tanya Tamone | Director | M | +42,500 | — |
| 2026-05-19 | Eric S Marmurek | EVP, Chief Financial Officer | MIXED | +93,809 | −$162.78K |
| 2026-05-19 | Patrick W Macken | EVP, Chief Legal Officer | MIXED | +138,400 | −$300.63K |
| 2026-05-19 | Sam Bucci | EVP, Chief Operating Officer | MIXED | +150,460 | −$462.19K |
| 2026-05-19 | Bruce William McClelland | Chief Executive Officer | MIXED | +1,393,290 | −$2.38M |
| 2026-04-17 | Shaul Shani | Director | A | +12,971 | — |
| 2026-04-17 | Bruns H Grayson | Director | A | +15,919 | — |
| 2026-04-17 | Eric S Marmurek | SVP, Deputy CFO and CAO | MIXED | +22,744 | −$36.59K |
| 2026-04-17 | John Raymond Townsend | EVP, Chief Financial Officer | MIXED | +15,552 | −$25.02K |
| 2026-02-13 | Bruce William McClelland | President & CEO | Buy | +37,000 | +$74.31K |
| 2026-01-20 | Bruns H Grayson | Director | A | +11,718 | — |
| 2026-01-20 | Shaul Shani | Director | A | +9,548 | — |
| 2025-12-16 | Eric S Marmurek | SVP, Deputy CFO and CAO | A | −169,721 deriv. | — |
| 2025-11-04 | Stephen J. McCaffery | EVP, Global Sales | A | +648,039 deriv. | — |
| 2025-10-17 | Bruns H Grayson | Director | A | +8,881 | — |
| 2025-10-17 | John Raymond Townsend | EVP, Chief Financial Officer | MIXED | +77,757 | −$192.21K |
| 2025-10-17 | Bruce William McClelland | President & CEO | MIXED | +20,877 | −$51.60K |
| 2025-10-17 | Patrick W Macken | EVP, CLO & Secretary | MIXED | +11,400 | −$35.25K |
| 2025-10-17 | Sam Bucci | EVP & COO | MIXED | +11,997 | −$52.65K |
| 2025-10-17 | Eric S Marmurek | SVP, Deputy CFO and CAO | MIXED | +45,488 | −$112.44K |
| 2025-10-17 | Shaul Shani | Director | A | +7,236 | — |
| 2025-09-08 | Beatriz V Infante | Director | Sell | −8,690 | −$34.60K |
| 2025-09-08 | Dan Redington | EVP, Global Sales | Sell | −189,610 | −$766.59K |
| 2025-07-17 | Bruns H Grayson | Director | A | +8,416 | — |
| 2025-06-18 | Tanya Tamone | Director | M | +48,365 | — |
| 2025-06-18 | Beatriz V Infante | Director | M | +48,365 | — |
| 2025-06-18 | Bruns H Grayson | Director | M | +48,365 | — |
| 2025-06-18 | R Stewart Ewing Jr | Director | M | +48,365 | — |
| 2025-06-18 | Scott Mair | Director | M | +48,365 | — |
| 2025-06-18 | Shaul Shani | Director | M | +48,365 | — |
| 2025-06-17 | Dan Redington | EVP, Global Sales | MIXED | +12,636 | −$30.66K |
| 2025-05-19 | Eric S Marmurek | SVP, CAO & Deputy CFO | MIXED | +19,193 | −$45.08K |
| 2025-05-19 | Bruce William McClelland | President & CEO | MIXED | +143,948 | −$338.08K |
| 2025-05-19 | Patrick W Macken | EVP, Chief Legal Officer | MIXED | +24,747 | −$72.70K |
| 2025-05-19 | Dan Redington | EVP, Global Sales | MIXED | +25,591 | −$60.10K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| JPMORGAN CHASE & CO | 10%+ Owner | 52,036,572 | $69.73M |
| Bruce William McClelland | Chief Executive Officer | 1,594,042 | $2.14M |
| Bruns H Grayson | Director | 859,446 | $1.15M |
| Eric S Marmurek | EVP, Chief Financial Officer | 581,206 | $778.82K |
| Sam Bucci | EVP, Chief Operating Officer | 536,035 | $718.29K |
| Beatriz V Infante | Director | 385,724 | $516.87K |
| Patrick W Macken | EVP, Chief Legal Officer | 373,826 | $500.93K |
| Shaul Shani | Director | 253,343 | $339.48K |
| R Stewart Ewing Jr | Director | 239,891 | $321.45K |
| Tanya Tamone | Director | 223,300 | $299.22K |
| Scott Mair | Director | 208,138 | $278.90K |
| John Raymond Townsend | EVP, Chief Financial Officer | 103,398 | $138.55K |
| Stephen J. McCaffery | EVP, Global Sales | 53,387 | $71.54K |
| Dan Redington | EVP, Global Sales | 14,176 | $19.00K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the RBBN quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.