Ribbon Communications Inc.

For the period ended Dec 31, 2025. Filed Feb 26, 2026.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 26, 2026

RBBN$1.44+6.7%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item		Page

	Cautionary Note Regarding Forward-Looking Statements	3
	Part I
1.	Business	4
1A.	Risk Factors	18
1B.	Unresolved Staff Comments	38
1C.	Cybersecurity	38
2.	Properties	39
3.	Legal Proceedings	39
4.	Mine Safety Disclosures	40
	Part II
5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	41
6.	[Reserved]	42
7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	43
7A.	Quantitative and Qualitative Disclosures About Market Risk	59
8.	Financial Statements and Supplementary Data	60
9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	114
9A.	Controls and Procedures	114
9B.	Other Information	116
9C.	Disclosure Regarding Foreign Jurisdictions that Prevent Inspections	116
	Part III
10.	Directors, Executive Officers and Corporate Governance	116
11.	Executive Compensation	116
12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	116
13.	Certain Relationships and Related Transactions, and Director Independence	116
14.	Principal Accountant Fees and Services	117
	Part IV
15.	Exhibit and Financial Statement Schedules	117
	Exhibit Index	118
	Signatures	122

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.

About this filing

Table of Contents