What the changes say
- AI risk now specifically includes inaccurate, biased, or infringing outputs and private-party claims.
- Public-cloud expansion adds provider outages, shared-responsibility security failures, misconfigurations, and data loss.
- Profitability improved to $39.4 million net income in 2025, but future investments may restore losses.
- A new $150 million repurchase authorization creates risks around liquidity and using cash for buybacks.
What changed since the prior 10-K
New
- NewRisks Related to Our Solution
hardware and software parameters and the evolution of our solution. If we do not accurately predict our infrastructure requirements or efficiently improve our infrastructure, our business could be harmed
Dependence on third-party data centers creates outage, renewal, capacity, relocation, and service-interruption risks as infrastructure requirements grow.
- NewRisks Related to Our International Operations
of our revenues from customers outside the United States, with approximately 89% of our revenue for the year ended December 31, 2025 derived from customers with billing addresses in the United States
Expanding U.K. and European Union sales, support, data centers, and public-cloud use increases international regulatory, tax, staffing, and political risks.
- NewOther Operational Risks
consent decrees forcing us to modify our business practices, all of which could materially harm our business, reputation or financial results
Greater public-cloud use increases dependence on providers and exposes Five9 to misconfigurations, security breaches, data loss, and service disruptions.
- NewOther Operational Risks
If our estimates or judgments relating to our critical accounting policies prove to be incorrect, our operating results could be adversely affected
Incorrect GAAP estimates or changing assumptions could reduce operating results and cause results to fall below investor expectations.
- NewRisks Related to Regulatory and Tax Matters
Compliance with 911 emergency service requirements could result in FCC, state or local enforcement action, including fines and other penalties
Failure to meet FCC, state, or local 911 requirements for virtual MLTS services could bring fines and other enforcement.
- NewRisks Related to Regulatory and Tax Matters
The European Union’s GDPR may continue to increase our costs and the costs of our customers to operate, limit the use of our solution or change the way we operate, exposes us to substantial fines and penalties if we fail to comply, and has led to similar laws being enacted in other jurisdictions
GDPR and UK GDPR compliance requires continuing investment and exposes Five9 to fines of up to €20 million or 4% of worldwide turnover.
- NewRisks Related to Regulatory and Tax Matters
security laws, regulations, and policies, could result in additional cost and liability to us, damage our reputation, inhibit sales, and adversely affect our business
EU AI, cybersecurity, and data-access rules plus U.S. state privacy laws could increase costs, restrict the solution, and create fines or class-action exposure.
- NewRisks Related to Ownership of Our Convertible Senior Notes
We may not realize the anticipated benefits of share repurchase activity
The $150 million repurchase authorization may raise the stock price or reduce liquidity without delivering expected shareholder value.
- NewRisks Related to Ownership of Our Convertible Senior Notes
so because the market price of our common stock may decline below the levels at which we repurchased shares and short-term stock price fluctuations could reduce the effectiveness of the repurchases
Repurchases reduce cash available for capital expenditures, debt, acquisitions, strategic initiatives, and other operating needs, potentially undermining their intended benefits.
Dropped
- DroppedRisks Related to Our Solution
our existing solution or new applications that achieve market acceptance or that keep pace with technological developments, our business would be harmed
- DroppedRisks Related to Regulatory and Tax Matters
We and many of our customers are subject to the GDPR based upon our processing of personal data collected from EU data subjects, such as our processing of personal data of our customers in the EU and our processing of our EU employees’ personal data
Reworded
- 92% rewrittenRisks Related to Our International Operations
Sales to customers outside the United States or with international operations and our international sales efforts and operations support expose us to risks inherent in international sales and operations
The risk now reports the 89% U.S. revenue figure for 2025 instead of 2024 and describes a more global customer base.
- 79% rewrittenRisks Related to Our Solution
The contact center software solutions market is subject to rapid technological change, and we must develop and sell incremental and new features and components of our solution in order to maintain and grow our business
The risk adds scarce specialized talent, higher compensation, and continuing compute, data, governance, and model-maintenance costs for AI development.
- 66% rewrittenRisks Related to Our Solution
The AI technology and features incorporated into our solution include new and evolving technologies that may present both legal and business risks
The risk adds private-party claims and the possibility that AI outputs are inaccurate, biased, or infringing.
- 64% rewrittenRisks Related to Our Solution
If we fail to manage our technical operations infrastructure, our existing customers may experience service outages, our new customers may delay or decide against deployment of our solution, existing customers may decide to move to another vendor, and we could be subject to claims for credits, damages or other actions
The supplied text shows no substantive change; infrastructure capacity, stability, security, outages, and outage causes remain described the same way.
- 61% rewrittenRisks Related to Our Financial Results
Prior to 2025, we had a history of losses, and we may be unable to sustain profitability
The company now reports $39.4 million of 2025 net income, a $378.2 million accumulated deficit, and possible future losses instead of continuing annual losses.
Was: We have a history of losses and we may be unable to achieve or sustain profitability
- 53% rewrittenRisks Related to Ownership of Our Convertible Senior Notes
If triggered, the conditional conversion features of the 2029 convertible senior notes may adversely affect our financial condition and operating results
The risk shifts from conditional conversion of 2025 notes to 2029 notes and updates the nonconversion period through March 31, 2026.
Was: If triggered, the conditional conversion features of the convertible senior notes may adversely affect our financial condition and operating results
- 47% rewrittenRisks Related to Our Intellectual Property
Our solution utilizes open source software, and any failure to comply with the terms of one or more of these open source licenses could negatively affect our business
The risk adds that internal policies cannot ensure consistent open-source compliance, while retaining possible source-code release requirements.
- 45% rewrittenRisks Related to Our International Operations
We continue to expand our international operations, which exposes us to significant risks
The international workforce description now emphasizes India and Portugal, removes the reference to engineering previously performed in Russia, and highlights broader regulatory risks.
- 37% rewrittenRisks Related to Ownership of Our Convertible Senior Notes
Anti-takeover provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to replace or remove our current management and limit the market price of our common stock
- 33% rewrittenRisks Related to Regulatory and Tax Matters
State privacy laws in the United States apply to certain entities doing business in their states, and we and our qualifying customers were required to comply with applicable requirements as of the effective dates of the applicable state laws or corresponding regulations
- 30% rewrittenOther Operational Risks
We may not be able to secure additional financing on favorable terms, or at all, to meet our future capital needs
- 28% rewrittenRisks Related to Our Solution
The use of AI by our workforce may present risks to our business
- 27% rewrittenRisks Related to Our Customers
Our customers may fail to comply with the terms of their agreements, necessitating action by us to collect payment, or may terminate their subscriptions for our solution
- 27% rewrittenRisks Related to Our Intellectual Property
Any failure to protect our intellectual property rights could impair our ability to protect our proprietary technology and our brand
- 24% rewrittenRisks Related to Regulatory and Tax Matters
We may not be able to utilize a significant portion of our net operating loss or research tax credit carryforwards, which could harm our profitability and financial condition
- 22% rewrittenOther Operational Risks
Adverse economic conditions may harm our business
- 22% rewrittenRisks Related to Our Intellectual Property
We employ third-party licensed software, including AI solutions, for use in or with our solution, and the inability to maintain these licenses or errors in the software we license could result in increased costs, or reduced service levels, which could harm our business
- 21% rewrittenRisks Related to Regulatory and Tax Matters
Failure to comply with laws and regulations could harm our business and our reputation
- 21% rewrittenRisks Related to Our Growth
Our historical growth may not be indicative of our future growth, and if we grow rapidly, we may fail to manage our growth effectively
All 65 risk factors
Headings as the filing states them, in filing order.
Risks Related to Our Financial Results
- 01Our quarterly and annual results may fluctuate significantly, may not fully reflect the underlying performance of our business and may result in decreases in the price of our common stock
- 02Because a significant percentage of our revenue is derived from existing customers, downturns or upturns in new sales will not be immediately reflected in our operating results and may be difficult to discern, but may be material over time
- 03As AI solutions will likely perform an increasing proportion of contact center interactions, if we are unable to replace decreases in subscription revenue from licenses with revenue from the sale of additional AI solutions, our revenue, results of operations and business will be harmed
- 04Shifts over time or from quarter-to-quarter in the mix of sizes or types of organizations that purchase our solution could affect our gross margins and operating results
- 05Prior to 2025, we had a history of losses, and we may be unable to sustain profitability61% rewritten
Risks Related to Our Growth
- 06Our historical growth may not be indicative of our future growth, and if we grow rapidly, we may fail to manage our growth effectively21% rewritten
- 07Our growth depends in part on the success of our strategic relationships with third parties and our failure to successfully maintain, grow and manage these relationships could harm our business
- 08Our historical growth and recent adverse economic conditions make it difficult to evaluate and predict our current business and future prospects
Risks Related to Our Customers
- 09If we are unable to attract new customers or continue to expand within our installed customer base, our revenue and revenue growth will be harmed
- 10If our existing customers terminate their subscriptions or reduce their subscriptions and related usage, our revenues and gross margins will be harmed and we will be required to spend more money to grow our customer base
- 11The loss of one or more of our key customers, or a failure to renew our subscription agreements with one or more of our key customers, could harm our ability to market our solution
- 12Our customers may fail to comply with the terms of their agreements, necessitating action by us to collect payment, or may terminate their subscriptions for our solution27% rewritten
- 13Our business could be harmed if our customers are not satisfied with the professional services and technical support provided by us or our partners
Risks Related to the Sale of our Solution
- 14Failure to adequately retain and expand our direct sales force will impede our growth
- 15We have established, and are continuing to increase, our network of technology solution distributors and resellers to sell our solution; our failure to effectively develop, manage, and maintain this network could materially harm our revenues
- 16The markets in which we participate involve a high number of competitors that is continuing to increase, and if we do not compete effectively, our operating results could be harmed
- 17If we fail to grow our marketing capabilities and develop widespread brand awareness cost effectively, our business may suffer
Risks Related to Our Solution
- 18If we fail to manage our technical operations infrastructure, our existing customers may experience service outages, our new customers may delay or decide against deployment of our solution, existing customers may decide to move to another vendor, and we could be subject to claims for credits, damages or other actions64% rewritten
- 19hardware and software parameters and the evolution of our solution. If we do not accurately predict our infrastructure requirements or efficiently improve our infrastructure, our business could be harmedNew
- 20Further development of our AI solutions may not be successful and may result in reputational harm and our future operating results could be materially harmed
- 21The AI technology and features incorporated into our solution include new and evolving technologies that may present both legal and business risks66% rewritten
- 22The use of AI by our workforce may present risks to our business28% rewritten
- 23If our solution fails, or is perceived to fail, to perform properly or if it contains technical defects, our reputation could be harmed, our market share may decline, and we could be subject to product liability claims
- 24The contact center software solutions market is subject to rapid technological change, and we must develop and sell incremental and new features and components of our solution in order to maintain and grow our business79% rewritten
- 25Our ability to continue to enhance our solution is dependent on adequate research and development resources. If we are not able to adequately fund our research and development efforts, we may not be able to compete effectively, and our business and operating results may be harmed
- 26If we are unable to maintain the compatibility of our software with other solutions and technologies, our business could be harmed
- 27We are subject to many hazards and operational risks that can disrupt our business, some of which may not be insured or fully covered by insurance
Risks Related to Our International Operations
- 28We continue to expand our international operations, which exposes us to significant risks45% rewritten
- 29Sales to customers outside the United States or with international operations and our international sales efforts and operations support expose us to risks inherent in international sales and operations92% rewritten
- 30of our revenues from customers outside the United States, with approximately 89% of our revenue for the year ended December 31, 2025 derived from customers with billing addresses in the United StatesNew
Other Operational Risks
- 31Adverse economic conditions may harm our business22% rewritten
- 32Security breaches, cybersecurity incidents, and improper access to, use of, or disclosure of our data or our customers’ data, or other cyber- attacks on our systems, or those of third parties on which we rely, could result in litigation and regulatory risk, harm our reputation and our business
- 33consent decrees forcing us to modify our business practices, all of which could materially harm our business, reputation or financial resultsNew
- 34If we are unable to attract and retain highly skilled leaders and other employees, our business and results of operations may be adversely affected
- 35We may not be able to secure additional financing on favorable terms, or at all, to meet our future capital needs30% rewritten
- 36If we are unable to maintain and further develop effective internal control over financial reporting, investors may lose confidence in the accuracy and completeness of our financial reports and the market price of our common stock may decrease
- 37Changes in financial accounting standards or practices may cause adverse, unexpected financial reporting fluctuations and affect our reported operating results
- 38If our estimates or judgments relating to our critical accounting policies prove to be incorrect, our operating results could be adversely affectedNew
Risks Related to Our Intellectual Property
- 39Any failure to protect our intellectual property rights could impair our ability to protect our proprietary technology and our brand27% rewritten
- 40We will likely continue to be subject to third-party intellectual property infringement claims
- 41Indemnity provisions in various agreements potentially expose us to substantial liability for intellectual property infringement and other losses
- 42We employ third-party licensed software, including AI solutions, for use in or with our solution, and the inability to maintain these licenses or errors in the software we license could result in increased costs, or reduced service levels, which could harm our business22% rewritten
- 43Our solution utilizes open source software, and any failure to comply with the terms of one or more of these open source licenses could negatively affect our business47% rewritten
Risks Related to Regulatory and Tax Matters
- 44Failure to comply with laws and regulations could harm our business and our reputation21% rewritten
- 45Increased taxes on our service may increase our customers’ cost of using our service and/or increase our costs and reduce our profit margins to the extent the costs are not passed through to our customers, and we may be subject to liabilities for past sales and other taxes, surcharges and fees
- 46Our ability to maintain compliance with complex rules and technological requirements intended to prevent robocalls and caller ID spoofing poses a significant business risk due to possible blocking of customer voice traffic
- 47Our ability to offer services outside the United States is subject to different regulatory and taxation requirements, which may be complicated and uncertain
- 48We are subject to assessments for unpaid USF contributions, as well as interest thereon and civil penalties, due to our prior position that we were not subject to regulation as a USF contributor and as an international carrier
- 49If we do not comply with FCC rules and regulations, we could be subject to FCC enforcement actions, fines, loss of licenses and possibly restrictions on our ability to operate or offer certain of our services
- 50Compliance with 911 emergency service requirements could result in FCC, state or local enforcement action, including fines and other penaltiesNew
- 51We may not be able to utilize a significant portion of our net operating loss or research tax credit carryforwards, which could harm our profitability and financial condition24% rewritten
- 52Privacy concerns and domestic or foreign laws and regulations may reduce the demand for our solution, increase our costs and harm our business
- 53The European Union’s GDPR may continue to increase our costs and the costs of our customers to operate, limit the use of our solution or change the way we operate, exposes us to substantial fines and penalties if we fail to comply, and has led to similar laws being enacted in other jurisdictionsNew
- 54security laws, regulations, and policies, could result in additional cost and liability to us, damage our reputation, inhibit sales, and adversely affect our businessNew
- 55State privacy laws in the United States apply to certain entities doing business in their states, and we and our qualifying customers were required to comply with applicable requirements as of the effective dates of the applicable state laws or corresponding regulations33% rewritten
Risks Related to Ownership of Our Convertible Senior Notes
- 56If triggered, the conditional conversion features of the 2029 convertible senior notes may adversely affect our financial condition and operating results53% rewritten
- 57Transactions relating to the 2029 convertible senior notes may dilute the ownership interests of our existing stockholders or adversely affect the market price of our common stock; the trading price of our 2029 convertible senior notes may be affected by volatility in the price of our common stock
- 58Our stock price has been volatile, may continue to be volatile and may decline, including due to factors beyond our control
- 59If securities or industry analysts discontinue publishing research or reports about our business, or publish negative reports about our business, our share price and trading volume could decline
- 60We may not realize the anticipated benefits of share repurchase activityNew
- 61so because the market price of our common stock may decline below the levels at which we repurchased shares and short-term stock price fluctuations could reduce the effectiveness of the repurchasesNew
- 62Substantial future sales of shares of our common stock could cause the market price of our common stock and our 2029 convertible senior notes to decline
- 63Anti-takeover provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to replace or remove our current management and limit the market price of our common stock37% rewritten
- 64The existence of these provisions could negatively affect the price of our common stock and limit opportunities for you to realize value in a corporate transaction
- 65We have never paid cash dividends and do not intend to pay dividends for the foreseeable future
Other Five9 10-Ks
- FY2024 10-K risk factors58 risks
Five9 faces profitability risks with an accumulated deficit of $417.6 million as of December 31, 2024. Growth depends heavily on expanding AI solutions to offset potential declines in traditional license revenues. The company relies on key third-party integrations and public cloud infrastructure to deliver its contact center software.
Filed Feb 21, 2025
About this page
The headings are the filing's own. The one-line readings and the overview are automated and can be wrong: read Item 1A of the 10-K for the exact wording.