Ribbon Communications (RBBN) director adds stock through RSU grant and exercise

Rhea-AI Filing Summary

Ribbon Communications director Shani Shaul reported routine equity compensation activity. Shaul received an award of 63,197 Restricted Stock Units (RSUs) that each represent a right to one share of common stock. These RSUs are scheduled to vest on June 15, 2027, subject to continued service, or earlier at the 2027 Annual Meeting of Stockholders if she does not stand for re-election or is not re-elected.

On June 16, 2026, Shaul also exercised 42,500 RSUs for 42,500 shares of common stock, leaving no remaining RSUs from that prior grant and resulting in direct ownership of 225,966 common shares. The filing shows no open-market purchases or sales, only grants and conversions.

Insights

Equity compensation and governance analyst

All activity is routine equity compensation, with no open-market trading.

The disclosure shows Shani Shaul, a director of Ribbon Communications, receiving 63,197 RSUs and exercising 42,500 RSUs into common stock. These are standard equity compensation mechanisms rather than discretionary stock purchases or sales.

The new RSU grant vests on June 15, 2027, or earlier at the 2027 Annual Meeting if she does not continue as a director. The exercise increased directly held common shares to 225,966, and there is no remaining derivative position from the 42,500 RSUs exercised.

Because there are no open-market sales or buys and the transactions are tied to vesting and board service, the informational value for short-term sentiment is limited. Subsequent company filings may provide additional context on overall director compensation structure and future vesting events.

Insider Trade Summary

42,500 shares exercised/converted

Mixed 3 txns

Insider SHANI SHAUL

Role null

Type	Security	Shares	Price	Value
Exercise	RSUs	42,500	$0.00	--
Exercise	Common Stock	42,500	$0.00	--
Grant/Award	Restricted Stock Units (RSUs)	63,197	$0.00	--

Holdings After Transaction: RSUs — 0 shares (Direct, null); Common Stock — 225,966 shares (Direct, null); Restricted Stock Units (RSUs) — 63,197 shares (Direct, null)

Footnotes (1)

1. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest on June 15, 2027, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2027 Annual Meeting of Stockholders (the "2027 Annual Meeting") occurs prior to June 15, 2027, and, at such 2027 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2027 Annual Meeting. The RSUs were awarded on June 16, 2025 and vested in full on June 16, 2026.

Key Figures

RSU grant size: 63,197 RSUs RSUs exercised: 42,500 RSUs Shares after transactions: 225,966 shares +2 more

5 metrics

RSU grant size 63,197 RSUs Restricted Stock Units granted with vesting tied to June 15, 2027 or 2027 Annual Meeting

RSUs exercised 42,500 RSUs Exercised into 42,500 shares of common stock on June 16, 2026

Shares after transactions 225,966 shares Common stock directly held by Shani Shaul following the RSU exercise

RSU-to-share ratio 1 RSU = 1 share Each RSU represents a contingent right to receive one share of common stock

RSU vesting date June 15, 2027 Scheduled vesting date for 63,197 RSUs, subject to continued service or 2027 Annual Meeting outcome

Key Terms

Restricted Stock Units (RSUs), RSU, derivative security, Annual Meeting of Stockholders

4 terms

Restricted Stock Units (RSUs) financial

"Restricted Stock Units (RSUs)"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

RSU financial

"Each RSU represents a contingent right to receive one share"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Annual Meeting of Stockholders financial

"if the Issuer's 2027 Annual Meeting of Stockholders occurs prior"

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SHANI SHAUL

(Last) (First) (Middle)

C/O RIBBON COMMUNICATIONS

6500 CHASE OAKS BLVD.

(Street)

PLANO TEXAS 75023

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ribbon Communications Inc. [ RBBN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/16/2026		M		42,500	A	(1)	225,966	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units (RSUs)	(1)	06/15/2026		A		63,197		(2)	(2)	Common Stock	63,197	$0	63,197	D
RSUs	(1)	06/16/2026		M			42,500	(3)	(3)	Common Stock	42,500	$0	0	D

Explanation of Responses:

1. Each RSU represents a contingent right to receive one share of the Issuer's common stock.

2. The RSUs will vest on June 15, 2027, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2027 Annual Meeting of Stockholders (the "2027 Annual Meeting") occurs prior to June 15, 2027, and, at such 2027 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2027 Annual Meeting.

3. The RSUs were awarded on June 16, 2025 and vested in full on June 16, 2026.

	Patrick Macken, BY POA from Shaul Shani	06/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Shani Shaul report for Ribbon Communications (RBBN)?

Shani Shaul reported a grant of 63,197 RSUs and the exercise of 42,500 RSUs into 42,500 common shares. These transactions reflect equity compensation and derivative conversion, with no open-market purchases or sales disclosed in this Form 4.

When do Shani Shaul’s new RSUs in Ribbon Communications (RBBN) vest?

The 63,197 RSUs are scheduled to vest on June 15, 2027, subject to Shaul’s continued service. If Ribbon’s 2027 Annual Meeting occurs earlier and she does not continue as a director, the RSUs vest on the date of that meeting instead.

How many Ribbon Communications (RBBN) shares does Shani Shaul hold after these transactions?

After exercising 42,500 RSUs into common stock, Shani Shaul directly holds 225,966 shares of Ribbon Communications common stock. The RSUs associated with that exercise were fully converted, leaving no remaining balance from that specific RSU grant.

Were there any open-market stock purchases or sales by Shani Shaul in this Form 4 for RBBN?

No, the Form 4 shows no open-market purchases or sales. All reported activity involves an RSU grant of 63,197 units and the exercise of 42,500 RSUs into common stock, which are compensation-related and derivative conversion transactions.

What does each RSU reported by Shani Shaul in Ribbon Communications (RBBN) represent?

Each RSU represents a contingent right to receive one share of Ribbon Communications common stock. Vesting conditions govern when these RSUs convert into shares, based on continued board service or the timing and outcome of the 2027 Annual Meeting of Stockholders.