[Form 4] Ribbon Communications Inc. Insider Trading Activity

Rhea-AI Filing Summary

Insider sale reported for Ribbon Communications (RBBN). On 09/05/2025 Beatriz Infante (director) disposed of 8,690 shares of Ribbon Communications common stock at a reported price of $3.9813 per share. After the transaction she beneficially owned 343,224 shares. The Form 4 was signed by Patrick Macken by power of attorney on 09/08/2025.

Positive

• Continued substantial ownership: Reporting person still beneficially owns 343,224 shares after the sale

Negative

• Insider disposition: Director disposed of 8,690 shares at $3.9813 per share on 09/05/2025

Insights

Financial Analyst

TL;DR: Director sold a modest number of shares, while retaining a substantial holding of 343,224 shares.

The transaction documents a sale of 8,690 common shares at $3.9813 each on 09/05/2025 by Beatriz Infante, a company director, reducing her direct holdings to 343,224 shares. The Form 4 shows a routine insider disposition with no derivative activity reported. This filing presents clear, specific facts but does not include context on rationale or timing beyond the reported dates and amounts.

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^*

INFANTE BEATRIZ V

(Last) (First) (Middle)

C/O RIBBON COMMUNICATIONS

6500 CHASE OAKS BLVD.

(Street)

PLANO TX 75023

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

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

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

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

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	09/05/2025		S		8,690	D	$3.9813	343,224	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

Explanation of Responses:

	Patrick Macken, By POA for Beatriz Infante	09/08/2025
	** 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.

FAQ

What did Beatriz Infante report on the Form 4 for RBBN?

She reported a sale of 8,690 common shares at $3.9813 per share on 09/05/2025 and a remaining beneficial ownership of 343,224 shares.

When was the Form 4 for RBBN signed and by whom?

Signed by Patrick Macken by POA for Beatriz Infante on 09/08/2025.

Did the Form 4 report any option or derivative transactions for RBBN?

No derivative securities were reported in Table II; only a non-derivative sale is recorded.

What was the price per share for the RBBN sale?

$3.9813 per share for the 8,690 shares disposed on 09/05/2025.

What is the reporting person’s relationship to Ribbon Communications?

Beatriz Infante is listed as a Director of Ribbon Communications (RBBN).