Marmurek Eric S bought RBBN
October 15, 2026 · Form 4 insider transaction
Marmurek Eric S bought 37,500 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 4 days after the transaction.
Direction
Acquired (buy-side)
Shares
37,500
Price
N/A
Total value
N/A
InsiderMarmurek Eric S
Role—
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateOctober 15, 2026
Filing dateOctober 19, 2026
Shares owned after581,206
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Eash RSU represents a contingent right to receive one share of the Registrant's common stock.