Marmurek Eric S sold RBBN
December 15, 2025 · Form 4 insider transaction
Marmurek Eric S sold 169,721 shares of Ribbon Communications Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Disposed (sell-side)
Shares
169,721
Price
$0.00
Total value
N/A
InsiderMarmurek Eric S
Role—
SecurityRestricted Stock Units (RSUs)
Transaction codeA: Grant or award
Transaction dateDecember 15, 2025
Filing dateDecember 16, 2025
Shares owned after169,721
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Eash RSU represents a contingent right to receive one share of the Registrant's common stock.; The RSUs were issued on December 12, 2025 and will vest as to 50% on December 15, 2026, with the remaining 50% of the RSUs vesting on December 15, 2027.