Marmurek Eric S sold RBBN
October 15, 2025 · Form 4 insider transaction
Marmurek Eric S sold 29,512 shares of Ribbon Communications Inc. at $3.81 per share, a transaction worth $112.4K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
29,512
Price
$3.81
Total value
$112.4K
InsiderMarmurek Eric S
Role—
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateOctober 15, 2025
Filing dateOctober 17, 2025
Shares owned after427,063
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Reflects shares of common stock withheld by the Registrant to satisfy tax withholding obligations in connection with the vesting.