Stephen J. McCaffery - 31 Oct 2025 Form 4 Insider Report for Ribbon Communications Inc. (RBBN)

Reporting relationship: EVP, Global Sales
Issuer ticker: RBBN
Reported as of: 31 Oct 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Nov 2025, 16:30:41 UTC
Prior SEC filing: 27 Oct 2025
Next SEC filing: 17 Jun 2026
Source filing: View source filing
Reporting owner signature: Stephen J. McCaffery

Key filing fact

Stephen J. McCaffery filed Form 4 for Ribbon Communications Inc. (RBBN) on 04 Nov 2025.

Key facts

This page summarizes Stephen J. McCaffery's Form 4 filing for Ribbon Communications Inc. (RBBN).
4 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 04 Nov 2025, 16:30.

Change

Previous filing in this sequence was filed on 27 Oct 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001690129 Primary reporting owner

McCaffery Stephen J.

Relationship: EVP, Global Sales
Address: C/O RIBBON COMMUNICATIONS, 6500 CHASE OAKS BLVD., PLANO
Signature: Stephen J. McCaffery
Signature date: 04 Nov 2025

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

RBBN transaction Derivative

Restricted Stock Units (RSUs)

Award

Transaction value: $0
Shares: +432,027
Change %
Price: $0.000000
Shares after: 432,027
Date: 31 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 432,027
Exercise price
Footnotes: F1, F2

RBBN transaction Derivative

RSUs

Award

Transaction value: $0
Shares: +108,006
Change %
Price: $0.000000
Shares after: 108,006
Date: 31 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 108,006
Exercise price
Footnotes: F1, F3

RBBN transaction Derivative

Performance-Based RSUs (PSUs)

Award

Transaction value: $0
Shares: +64,804
Change %
Price: $0.000000
Shares after: 64,804
Date: 31 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 64,804
Exercise price
Footnotes: F1, F4

RBBN transaction Derivative

PSUs

Award

Transaction value: $0
Shares: +43,202
Change %
Price: $0.000000
Shares after: 43,202
Date: 31 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 43,202
Exercise price
Footnotes: F1, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Each RSU and PSU converts into common stock on a one-for-one basis.

Footnote F2

The RSUs were awarded on October 31, 2025 and vest as to 108,007 shares on the first anniversary of the date of grant, with the remaining RSUs vesting in six equal semi-annual installments thereafter through October 31, 2029.

Footnote F3

The RSUs were awarded on October 31, 2025 and vest as to 36,002 shares on the first anniversary of the date of grant, with the remaining RSUs vesting in four equal semi-annual installments thereafter through October 31, 2028.

Footnote F4

The PSUs were awarded on October 31, 2025. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee on an annual basis) for each of the three fiscal years ending December 31, 2025, 2026 and 2027. The aggregate number of shares issued may range from zero shares to 150% of the target number of shares reported in column 3 of Table II. The number of PSUs reported in column 3 of Table II reflects achievement at the target level of performance. The PSUs will vest on May 15, 2028.

Footnote F5

The PSUs were awarded on October 31, 2025. The number of PSUs earned and issuable upon vesting will be determined based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the period beginning on the grant date and ending December 31, 2028. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in column 3 of Table II. The number of PSUs reported in column 3 of Table II reflects achievement at the target level of performance. The PSUs will vest on May 15, 2029.