Eric S. Marmurek - 15 Dec 2025 Form 4 Insider Report for Ribbon Communications Inc. (RBBN)

Role
SVP, Deputy CFO and CAO
Signature
Patrick Macken, By POA from Rick Marmurek
Issuer symbol
RBBN
Transactions as of
15 Dec 2025
Net transactions value
$0
Form type
4
Filing time
16 Dec 2025, 16:57:03 UTC
Previous filing
17 Oct 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Marmurek Eric S SVP, Deputy CFO and CAO 6500 CHASE OAKS BLVD., STE. 100, PLANO Patrick Macken, By POA from Rick Marmurek 16 Dec 2025 0001720721

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction RBBN Restricted Stock Units (RSUs) Award $0 -169,721 -50% $0.000000 169,721 15 Dec 2025 Common Stock 169,721 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Eash RSU represents a contingent right to receive one share of the Registrant's common stock.
F2 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.