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Reporting owner

Marmurek Eric S

Reporting owner CIK 0001720721 · EVP, Chief Financial Officer

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These transactions appear in filings associated with this reporting owner. Jointly reported quantities and amounts are unallocated; they are not this owner's individual purchases or total holdings. Names and roles reflect the relevant filing, and a reporting owner may be a person or an organization.

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Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.Marmurek Eric SMarmurek Eric SMarmurek Eric S · October 15, 2026 · Exercise / conversion · Common StockMarmurek Eric S · October 15, 2025 · Exercise / conversion · Common StockOct 15, 2025Oct 15, 2026
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

2 dated transactions · 1 of 1 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Oct 15, 2026Ribbon Communications Inc.Common StockMarmurek Eric SExercise / conversion
Oct 15, 2025Ribbon Communications Inc.Common StockMarmurek Eric SExercise / conversion

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Transactions in associated filings

Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedCompanyReporting ownersType / securityQuantityPrice / reference valueDetails
Trade: Ribbon Communications Inc.RBBN · company listings
Marmurek Eric SEVP, Chief Financial Officer
Exercise / conversionCommon StockNon-derivative security · Code M37,500Not reported *Value: Not reportedCurrency not specifiedView ↗
Trade: Ribbon Communications Inc.RBBN · company listings
Marmurek Eric SSVP, Deputy CFO and CAO
Exercise / conversionCommon StockNon-derivative security · Code M75,000Not reported *Value: Not reportedCurrency not specifiedView ↗