| Insider Name | Buy/Sell | Company Name | Ticker | Amount | Shares Change | |||
|---|---|---|---|---|---|---|---|---|
| Dec 08, 2020 | Dec 10, 2020 | Marmurek Eric S SVP CAO | Sell | Ribbon Communications Inc. | RBBN | $7.19 | $59,709 | -19.85% |
| May 15, 2020 | May 19, 2020 | Marmurek Eric S SVP CAO | Sell | Ribbon Communications Inc. | RBBN | $3.24 | $3,549 | -2.78% |
| Apr 15, 2020 | Apr 17, 2020 | Marmurek Eric S SVP CAO | Sell | Ribbon Communications Inc. | RBBN | $2.92 | $9,991 | -7.98% |
| Nov 15, 2019 | Nov 19, 2019 | Marmurek Eric S Principal Accounting Officer | Sell | Ribbon Communications Inc. | RBBN | $2.99 | $3,295 | -3.46% |
| May 15, 2019 | Nov 19, 2019 | Marmurek Eric S Principal Accounting Officer | Sell | Ribbon Communications Inc. | RBBN | $4.85 | $5,379 | -3.36% |