Marmurek Eric S bought RBBN

October 15, 2025 · Form 4 insider transaction

Marmurek Eric S bought 75,000 shares of RIBBON COMMUNICATIONS INC, a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction

Acquired (buy-side)

75,000

Price

N/A

Total value

N/A

InsiderMarmurek Eric S

Role—

CompanyRIBBON COMMUNICATIONS INC (RBBN)

SecurityCommon Stock

Transaction codeM — Option exercise

Transaction dateOctober 15, 2025

Filing dateOctober 17, 2025

Shares owned after456,575

OwnershipDirect

10b5-1 planNo

AmendedNo

Footnotes

Eash RSU represents a contingent right to receive one share of the Registrant's common stock.

View the original Form 4 on SEC EDGAR