What changed in this filing

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Item 1. Business

2022-02-22 compared with 2021-02-22 · 103 added, 80 removed, 123 unchanged (60% of the section changed)

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Calix was founded in 1999.

We develop and market cloud and software platforms, systems and services to enable CSPs of all types and sizes to innovate and transform their businesses.

These platforms empower our CSP customers to utilize real-time data and insights to simplify their businesses and deliver an increasing array of services to excite their subscribers.

We believe these insights enable CSPs to grow their businesses through increased subscriber acquisition, loyalty and revenue, thereby increasing the value of their businesses and contributions to their communities.

This is our mission – to enable CSPs of all sizes to simplify, excite and grow.

We believe our platforms offer a competitive edge to CSPs at a critical time of increasing competition from over-the-top device providers as they expand their reach and focus on owning the connected home experience.

For example, these device providers are entering the home by offering Wi-Fi enabled devices, and then leveraging the behavioral insights to expand their direct relationship and brand with the subscriber by offering additional consumer services.

Over time, we expect this competition can erode a CSP’s brand and relationship with their subscribers, by reducing broadband to an easy-to-replace commodity, which can increase churn and reduce revenue.

Our platforms enable CSPs to compete with higher value managed services offerings for their subscribers.

Innovative CSPs, who are embracing our platforms, understand this competitive threat and that their brand’s central position in the home is a strategic ground they must protect and expand continually.

Our Intelligent Access EDGE network solution and Revenue EDGE subscriber solution are designed to allow the CSP to simplify their business and reduce operating expenses, or OpEx, while launching exciting new services in weeks instead of years.

Our role-based clouds enable CSP teams, such as operations, marketing and support, to leverage real-time behavioral analytics to anticipate the subscriber’s needs, whether that is optimized broadband speed or a new service offering.

The CSP’s teams can then utilize these insights to offer new and innovative services to those subscribers who have the propensity to buy, thereby growing revenue as they deliver a connected home experience at significantly lower OpEx.

To expand our reach in the market, w e will continue to pursue strategic technology and distribution relationships that align with CSPs’ strategic priorities.

At the same time, we offer our Calix Customer Success and Support Services that provide the CSP with best practices and programs to strengthen and grow their brand with their subscribers, thereby increasing subscriber loyalty and opportunities to grow their subscriber base.

We develop and market cloud and software platforms, systems and services that enable BSPs of all types and sizes to innovate and transform their business.

For our customers to successfully transform their businesses into the winning broadband providers of the future, they require actionable data for critical business functions such as network operations, customer support and marketing.

However, this data is often trapped in disparate systems or departmental silos.

Our Calix Cloud platform gathers, analyzes and applies machine learning to deliver real-time insights seamlessly to each key business function.

Our customers utilize these data and insights to simplify network operations, marketing and customer support and deliver experiences that excite their subscribers.

This enables BSPs to grow their brand through increased subscriber acquisition, loyalty and revenue and to reduce their operating costs, creating value for their businesses and the communities they serve.

This is our mission;

to enable BSPs of all sizes to simplify, excite and grow.

We believe our platforms offer a competitive edge to BSPs at a critical time of increasing competition from direct-to-consumer device providers as they expand their reach and focus on owning the connected home experience.

For example, these competing device providers are entering the home by offering Wi-Fi enabled devices, and then leveraging behavioral insights to expand their direct relationship and brand with the subscriber by offering additional consumer services.

Over time, we expect this competition can erode a BSP’s brand and relationship with their subscribers, by reducing broadband to an easy-to-replace commodity, which can increase churn and reduce revenue.

Our platforms enable BSPs to compete with higher value managed services offerings for their subscribers.

Innovative BSPs, who are embracing our platforms, understand this competitive threat and that their brand’s central position in the home is strategic.

As such, they must protect and expand continually.

Our Intelligent Access EDGE network solution and Revenue EDGE subscriber solution are designed to allow BSPs to simplify their business and reduce operating costs, while launching exciting new services in a matter of days and weeks instead of months and years.

Our role-based clouds enable BSP teams, such as marketing, operations and support, to leverage real-time behavioral analytics to anticipate the subscriber’s needs, whether that is optimized broadband speed or a new, differentiated service offering.

The BSP’s teams can then utilize these insights to offer new and innovative services to those subscribers who have the propensity to buy, thereby growing revenue as they deliver a connected home experience at significantly lower operating costs.

To expand our reach in the market, w e will continue to pursue strategic technology and distribution relationships that align with BSPs’ strategic priorities.

At the same time, we offer our Calix Customer Success and Support Services along with a growing portfolio of market activation resources that provide the BSP with best practices and programs to strengthen and grow their brand with their subscribers, thereby increasing subscriber loyalty and opportunities to grow their subscriber base.

Strategy Overview

Our strategy is to position Calix as the key partner providing cloud and software platforms, systems and services to enable and facilitate the transformation of CSP networks into networks that utilize real-time data generated in the access network and subscriber home network in order to provide an exceptional broadband experience for their subscribers.

Most CSPs will require significant transformation of their business and operations in order to become an essential provider of data-driven, high value managed services to their subscribers.

Our strategy is to position Calix as the key partner providing cloud and software platforms, systems and services to enable and facilitate the transformation of BSP networks into networks that utilize real-time data generated in the access network and subscriber home network in order to provide an exceptional broadband experience for their subscribers.

Most BSPs will require significant transformation of their business and operations to become an essential provider of data-driven, high-value managed services to their subscribers.

The principal elements of our strategy are:

Starting with the data – The principal way we gather, analyze and deliver actionable insights for BSPs is via the Calix Cloud.

Our role-based Cloud platforms enable critical functions within a BSP’s business, such as marketing, operations and support, to leverage real-time data to continually understand and optimize the experience for their subscribers.

Building and evolving our platforms – Our product strategy centers on our strategic platforms.

These platforms simplify CSPs’ businesses by delivering intelligence and automation across the entire subscriber facing network – from the data center edge to the subscriber’s devices.

Our platforms also enable critical functions within a CSP’s business, such as marketing, support and operations, to leverage real-time data to continually understand and optimize the experience for their subscribers.

These platforms simplify BSPs’ businesses by delivering intelligence and automation across the entire subscriber facing network – from the data center edge to the subscriber’s devices.

Our strategy is to continually augment and extend these platforms with features and services directly or through partners to allow our customers to deliver cutting-edge services to their subscribers.

Engage Directly with Customers – We continue to invest in our direct sales capabilities so that we can engage deeply with our customers to help them understand the differentiable value that our platforms provide.

Engaging Directly with Customers – We continue to invest in our direct sales capabilities so that we can engage deeply with our customers to help them understand the differentiable value that our platforms provide.

As we deploy new solutions, we are building the expertise of our team by adding specialized resources in areas such as marketing, cloud platforms and network operations.

Our direct model is complemented with selective programs for our channel partners, who have established local market expertise and have demonstrated the ability to generate new market opportunities and support sales of cutting-edge technologies for CSPs.

Expand Customer Footprint Across Our Total Addressable Market – Our total addressable market includes CSPs of any type and size, including local and competitive exchange carriers, cable multiple system operators, or cable MSOs, wireless internet service providers, or WISPs, fiber overbuilders such as municipalities and electric cooperatives and hospitality providers.

In 2020, despite limited face-to-face interaction, we added 87 CSP customers purchasing directly or through our partners.

diverse and growing customer footprint is a critical source of our future growth as we expand our portfolio and sell additional platforms to both new and existing customers.

Our platforms expand our total addressable market and recurring revenue streams by allowing us to address the needs of not only traditional wireline-focused CSPs, but also emerging service providers.

Our direct model is complemented with selective programs for our channel partners, who have established local

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market expertise and have demonstrated the ability to generate new market opportunities and support sales of cutting-edge technologies for BSPs.

Expanding Customer Footprint Across Our Total Addressable Market – Our total addressable market includes BSPs of any type and size, including local and competitive exchange carriers, cable multiple system operators, or cable MSOs, wireless internet service providers, or WISPs, fiber overbuilders such as municipalities and electric cooperatives and hospitality providers.

In 2021, we added 130 BSP customers purchasing directly or through our partners.

Our diverse and growing customer footprint is a critical source of our future growth as we expand our portfolio and sell additional platforms to both new and existing customers.

Our platforms expand our total addressable market and recurring revenue streams by allowing us to address the needs of not only traditional wireline-focused BSPs, but also emerging service providers.

As such, we intend to continue to engage emerging providers that are creating entirely new customer segments, including fiber overbuilders, utilities and municipalities.

We will also continue to pursue service provider segments where our current share is relatively low, such as cable MSOs, large CSPs and international markets.

Extend Portfolio of Calix Services – Our services team, Calix Services, support our CSPs as they define their transformation strategies, build new skills, implement new technologies and deploy new subscriber services.

Calix Services’ capabilities address a CSP’s entire network and service delivery lifecycle.

These services allow CSPs to benefit directly from our deep expertise working with service providers to optimize their operations and leverage our advanced analytics to improve the operational efficiency of their teams.

Pursue Strategic Relationships – We will continue to pursue strategic technology and distribution relationships that help us align with CSPs’ strategic priorities.

Extending Portfolio of Calix Services – Our services team, Calix Services, supports our BSPs as they define their transformation strategies, build new skills, implement new technologies and deploy new subscriber services.

Calix Services’ capabilities address the BSP’s entire network and service delivery lifecycle.

These services allow BSPs to benefit directly from our deep expertise working with service providers to optimize their operations and leverage our advanced analytics to improve the operational efficiency of their teams.

Pursuing Strategic Relationships – We will continue to pursue strategic technology and distribution relationships that help us align with BSPs’ strategic priorities.

We continue to invest to provide interoperability across the ecosystems that support our customers’ most critical business processes through our partner programs.

By adding new solutions to our platform ecosystem, we significantly enhance the value that our platforms deliver to CSPs.

By adding new solutions to our platform ecosystem, we significantly enhance the value that our platforms deliver to BSPs.

In addition, we are expanding our relationships with organizations that help our customers plan and execute in market.

Examples of these partners are Conexon Connect, LLC, CCI Systems, Inc.

and The Pivot Group, LLC.

Product Overview

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and AXOS ® , which is marketed as the Network Innovation Platform.

These platforms are sold independently and are also offered as two strategic solutions that make CSP adoption simple and quick:

These platforms are sold independently and are also offered as two strategic solutions that make BSP adoption simple and quick:

the “Revenue EDGE” and the “Intelligent Access EDGE.”

The Revenue EDGE

The Revenue EDGE is a subscriber experience solution designed to enable CSPs to rapidly deploy new subscriber services to grow their business.

The solution is built on EXOS, our carrier class premises operating system, and fully integrated with our GigaSpire ® family of systems to be ready for deployment as a complete subscriber experience solution for a CSP’s residential and business subscribers.

The Revenue EDGE is a subscriber experience solution designed to enable BSPs to rapidly deploy new subscriber services to grow their business.

The solution is built on EXOS, our carrier-class premises operating system, and fully integrated with our GigaSpire ® family of systems to be ready for deployment as a complete subscriber experience solution for a BSP’s residential and business subscribers.

The Revenue EDGE also integrates real-time subscriber insights via our Calix Marketing Cloud, Calix Support Cloud and Calix Operations Cloud offerings, which are configurable to display role-based insights.

These insights enable CSPs to anticipate and target new revenue-generating services and applications through our mobile application, CommandIQ ® , and expanding EDGE Suites offerings.

These insights enable BSPs to anticipate and target new revenue-generating services and applications through our mobile application, CommandIQ ® , and expanding EDGE Suites offerings.

Our Cloud offerings are also being integrated with other market leading platforms and solutions like Facebook, Mailchimp and HubSpot to further simplify BSP processes and accelerate their time to market.

We offer additional cloud-based services with the Revenue EDGE, which we refer to as EDGE Suites.

Today they include features for network security and parental controls.

We will continue to expand these services with integrated third-party cloud offerings from our ecosystem Revenue EDGE partners such as Arlo Technologies, Inc., or Arlo, and Service Lee Technologies Private Limited, or Servify.

Finally, we offer Revenue EDGE Enablement resources to provide CSP teams with resources to quickly deploy, manage and monetize the services that they provide to subscribers.

We continue to expand these services with integrated third-party cloud offerings from our ecosystem Revenue EDGE partners such as Arlo Technologies, Inc., or Arlo, and Service Lee Technologies Private Limited, or Servify.

Finally, we offer Revenue EDGE Enablement resources to provide BSP teams with resources to quickly deploy, manage and monetize the services that they provide to subscribers.

These resources include marketing content that can be easily customized with on-line tools, training programs, success services and professional services.

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The Intelligent Access EDGE solution is built on the award-winning Calix AXOS software platform and redefines the access edge of the network by simplifying its architecture and operations.

AXOS is implemented in our E-Series family of modular, non-blocking systems, enabling our customers to meet a wide variety of deployment scenarios.

The Intelligent Access Edge allows customers to collapse multiple network elements in the access network into a single system and by using specialized software modules to add functionality and remove complexity, the solution reduces the total cost of ownership and the time to market for new services.

In addition, Intelligent Access EDGE Insights enable CSPs to more effectively monitor network performance and more efficiently address performance issues.

Intelligent Access EDGE Enablement services are designed to ensure CSP teams are fully enabled to deploy and manage next generation networks.

We offer a range of training, professional and success services to assist CSPs in every domain of network management from strategy to deployment and management.

AXOS is implemented in our E-Series family of modular, non-blocking systems, enabling BSPs to meet a wide variety of deployment scenarios.

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The Intelligent Access EDGE allows BSPs to collapse multiple network elements in the access network into a single system and by using specialized software modules to add functionality and remove complexity, the solution reduces the total cost of ownership and the time to market for new services.

In addition, insights delivered through Calix Operations Cloud enable BSPs to more effectively monitor network performance and more efficiently address performance issues.

Intelligent Access EDGE Enablement services are designed to ensure BSP teams are fully enabled to deploy and manage next generation networks.

We offer a range of training, professional and success services to assist BSPs in every domain of network management from strategy to deployment and management.

Traditional Products

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We expect that these products will continue to be utilized in our customers’ networks for many years to come.

We market and sell our cloud and software platforms, systems and services to CSPs of all types and sizes.

To date, we have focused primarily on CSPs in the North American market.

We market and sell our cloud and software platforms, systems and services to BSPs of all types and sizes.

To date, we have focused primarily on BSPs in the North American market.

Our customers span all sizes of broadband subscriber count from a few hundred to more than six million.

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Cox Communications;

Frontier Communications Corporation, or Frontier;

Forked Deer Connect, LLC;

Gibson Connect, LLC;

Jade Communications;

Lumen Technologies, Inc.

(formerly known as CenturyLink, Inc.), or Lumen;

Sky Cable Corporation;

Silver Star Communications;

TDS Telecommunications LLC;

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and Verizon Communications, Inc.

We classify CSPs into large, medium and small based on the number of broadband subscribers they serve.

Large CSPs are those with wide geographic footprints and broadband subscribers of 2.5 million or more.

Medium CSPs also operate typically within a wide geographic footprint but are smaller in scale with broadband subscribers that range from 250,000 to 2.5 million.

Small CSPs consist primarily of over 1,000 predominantly local independent operating companies, or IOCs, typically focused on a single community or a cluster of communities.

We classify BSPs into large, medium and small based on the number of broadband subscribers they serve.

Large BSPs are those with wide geographic footprints and broadband subscribers of 2.5 million or more.

Medium BSPs also operate typically within a wide geographic footprint but are smaller in scale with broadband subscribers that range from 250,000 to 2.5 million.

Small BSPs consist primarily of over 1,000 predominantly local independent operating companies, or IOCs, typically focused on a single community or a cluster of communities.

They include a growing number of municipalities, electric cooperatives, fiber overbuilders and WISPs.

These entities range in size from a few hundred to 250,000 broadband subscribers.

Historically, Lumen has accounted for more than 10% of total revenue, representing 18% of total revenue in 2018 and 15% in 2019.

Our efforts to grow our product platforms, add new CSP customers and shift away from low value deployment services have all contributed to Lumen representing 11% of our total revenue in 2020.

Historically, Lumen has accounted for more than 10% of total revenue, representing 11% in 2020 and 15% in 2019 .

Our efforts to grow our product platforms, add new CSP customers and shift away from low value deployment services have all contributed to Lumen representing less than 10% of our total revenue in 2021.

No other customer represented more than 10% of total revenue in 2021, 2020 and 2019.

Sales to customers outside the United States represented 13% of our revenue in 2020, 14% of our total revenue in 2019 and 12% in 2018.

Our sales outside the United States have been and are currently predominantly to customers in Canada, the Caribbean, Europe and the Middle East.

Sales to customers outside the United States represented 17% of our revenue in 2021, 13% of our revenue in 2020 and 14% of our total revenue in 2019.

Our sales outside the United States have been and are currently predominantly to customers in the Americas and Europe.

Customer Engagement Model

We market, sell and support the success of our cloud and software platforms, systems and services predominantly through our direct sales force, supported by marketing, product management and customer success personnel.

We have expanded this model to include select channel partners in North America and more than a dozen international channel partners.

We have expanded this model to include select channel partners in North America and more than 40 international channel partners.

Even in circumstances where a channel partner is involved, our sales and marketing personnel are generally selling side-by-side with the channel partner.

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Our teams of engineers currently remain concentrated in San Jose and Petaluma, California;

Bangalore, India;

Minneapolis, Minnesota;

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In particular, certain of our research and development efforts may be extended by co-development partnerships with third-party developers such as Infosys whereby we can utilize their substantially larger product development teams to bring cutting edge, software-based products to market while creating new revenue opportunities for both parties.

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Manufacturing and Supply Chain

We rely substantially on CMs, ODMs and logistics and other third-party partners for the supply and distribution of our products.

We work closely with these third parties to source and procure materials, manufacture and deliver our products and, increasingly, provide hardware system design.

Our global supply chain management organization consists primarily of supply chain managers, new product introduction personnel and test engineers.

We rely on contract manufacturers, original design manufacturers, original equipment manufacturers and third-party logistics partners for the supply and distribution of our products.

Our global supply chain management organization oversees these third parties to source and procure materials, manufacture and deliver our products.

Our global supply chain management organization consists of planning, sourcing, logistics, test and manufacturing engineers and new product introduction personnel.

We tightly integrate our supply chain management and new product introduction activities with the activities outsourced to these third parties.

We believe that our relationships with and our reliance on our CMs, ODMs and order fulfillment partners allow us to decrease new product introduction time, conserve working capital, reduce product costs and minimize delivery lead times while maintaining high product quality as well

as the ability to scale quickly to handle increased order volume.

Over the past two years, we have reorganized our global supply chain to better align with our platform strategy as well as to reduce the impact from the imposition by the U.S.

We believe that our relationships with and our reliance on third parties allow us to improve new product introduction time, conserve working capital, reduce product costs and minimize delivery lead times while maintaining high product quality as well as the ability to scale quickly to handle increased order volume.

Over the past three years, we have reorganized our global supply chain to better align with our platform strategy as well as to reduce the impact from the imposition by the U.S.

government of tariffs on goods imported from China.

Such changes include the transition of manufacturing previously conducted in China to different manufacturing partners outside China in Taiwan and Vietnam as well as shifting a higher proportion of hardware systems design, management of raw materials used for manufacture and transition of global supply chain operations to our ODM partners.

Such changes include the transition of manufacturing previously conducted in China to different manufacturing partners outside China in Taiwan and Vietnam as well as shifting a higher proportion of hardware systems design, management of raw materials used for manufacture and transition of specific supply chain operations to our ODM partners.

Order fulfillment is performed primarily by our logistics provider located in Texas.

We continue to qualify and utilize other vendors for various portions of our supply chain from time to time, including order fulfillment of our circuit boards, optics and cabinets.

As a result of global restrictions and uncertainty related to the COVID-19 pandemic, we have experienced product supply delays as we and our supply chain partners experience longer lead times and shortages of components and materials.

We believe the impact of the COVID-19 pandemic and government responses to the pandemic will continue to impact the ability of our third-party manufacturers to supply products to us at the cost and in the time frames and volumes required by us.

We continue to qualify and utilize other vendors for various portions of our supply chain from time to time.

As a result of the current semiconductor and other component shortages, global restrictions and uncertainty related to the COVID-19 pandemic, we have experienced product supply delays as we and our supply chain partners experience longer lead times and shortages of components and materials.

We believe the impact of these shortages along with the COVID-19 pandemic and government responses to the pandemic will continue to impact the ability of our third-party manufacturers to supply products to us at the cost and in the time frames and volumes required by us.

We also continue to face challenges in managing global logistics and transport services for our products.

Fluctuations in our revenue occur due to many factors, including the varying budget cycles and seasonal buying patterns of our customers.

More specifically, our customers tend to spend less in the first fiscal quarter as they are finalizing their annual capital spending budgets, and in certain regions, customers are also challenged by winter weather conditions that inhibit outside fiber deployment.

Furthermore, we believe our customer deployments have benefited to some extent from higher demand for our products and solutions as a result of an increased reliance on CSP services due to the restrictions and uncertainty associated with the COVID-19 pandemic.

Over the last couple of years, as our revenue from our large customers decreased, we have seen a reduction in year-end budgetary spending.

This combined with an increase in recurring revenue, has resulted in smaller seasonal fluctuations, and we expect this trend to continue.

The communications software and systems equipment markets are highly competitive.

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We compete with several companies within the markets that we serve, and we anticipate that competition will intensify.

Vendors with which we compete include ADTRAN, Inc.;

Vendors with which we compete include:

ADTRAN, Inc.;

Casa Systems, Inc.;

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As of December 31, 2021, we held 107 U.S.

patents and had four pending U.S.

patents and had two pending U.S.

patent applications.

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patents generally have a term of twenty years from filing.

The remaining terms on our individual patents vary from two months to 17 years.

The remaining terms on our individual patents vary from less than a year to 17 years.

patent, copyright and trade secret laws afford us only limited protection, and the laws of some foreign countries do not protect proprietary rights to the same extent.

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We believe that the frequency of assertions of patent infringement has and continues to increase in our industry.

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Human Capital

We employ 785 employees globally as of December 31, 2020, with 74% employees located in the United States and 24% primarily in Canada and Nanjing, China.

We employed 954 employees globally as of December 31, 2021, with 74% employees located in the United States and 24% primarily in Canada, China and India.

Except for one employee located in France and subject to customarily local collective bargaining arrangements, we do not have any employees represented by a labor union with respect to their employment with us.

We have not experienced any work stoppages and consider our relations with our employees to be good.

We consider our talent to be very important to our operations and execution on our business strategy as well as the overall success of our business.

We consider our talent to be very important to our operations and execution of our business strategy as well as the overall success of our business.

As such, we invest significant management attention, time and resources to attract, engage, develop and retain our talent.

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Our culture and core values.

We believe that by nurturing a strong culture based on our core values we are able to attract, hire and retain a highly engaged team.

We believe that by nurturing a robust culture based on our core values we are able to attract, hire and retain a highly engaged team.

Our cultural pillars – to collaborate, create and communicate – reflect the way we lead and work with one another internally as well as externally with our customers, partners, suppliers and other stakeholders.

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We invest in talent programs to identify and hire candidates who embody our culture and core values and will further our mission.

Our compensation and rewards programs are designed to foster a happy, engaged and high-performing workforce.

We focus on onboarding and assimilating our hires into the Calix culture while encouraging them to express their own diverse views and talents, in turn strengthening our culture.

Although we do have facilities for our employees, we embrace a “work from anywhere” environment which allows us to hire top talent regardless of their physical location.

Our compensation and rewards programs are designed to foster an energized, engaged, motivated and high-performing workforce.

We hire and compensate our talent based on their role, experiences, contributions and performance, regardless of their gender, race or ethnic background or other personal characteristics.

For example, our current programs include cash incentive bonuses designed to reward corporate and individual performance and cash bonus opportunities for internal promotions to leadership roles.

We offer two employee stock purchase plans, because we believe stock ownership rewards employees for corporate performance aligned to our stockholders’ interests.

In addition to performance stock option grants for senior executives, we offer two employee stock purchase plans, because we believe stock ownership rewards employees for corporate performance aligned to our stockholders’ interests.

Our programs are regularly reviewed and adjusted based on benchmarks against competitive industry programs.

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locations, sick leave days and leave programs, unlimited time off, disability benefits and reimbursements under our wellness fund and remote office program.

At the outset of the COVID-19 pandemic, we increased support and attention for our team in Nanjing, China, closely monitoring wellbeing and providing flexibility and tools to enable business continuity, while keeping our team safe.

With the global onset of the pandemic, we initiated CEO-led bi-weekly sessions in an open forum with all employees addressing the impact of the pandemic and our response to support our workforce and business.

Throughout the COVID-19 pandemic, our approach has been a combination of education and actions designed with the goal of ensuring we have a very safe work environment for all our employees globally.

We increased support and attention for our team in Nanjing, China, closely monitoring wellbeing and providing flexibility and tools to enable business continuity, while keeping our team safe.

We initiated CEO-led sessions in an open forum with all employees addressing the impact of the pandemic and our response to support our workforce and business.

We host a communications hub to provide and to enable our teams to share, resources and information such as public health and safety updates, resources for self-care, managing education and school-related challenges and leading remote teams, as well as interesting articles related to the pandemic.

We implemented work and safety protocols that put the health and safety of our team first and transitioned our remote work program to apply to all employees in the U.S.

While our U.S.

facilities remained closed, we reconfigured our offices and adjusted our office and health screening protocols to create a safe place to conduct essential tasks.

We implemented work and safety protocols, including a COVID-19 vaccine mandate, that put the health and safety of our team first and transitioned our remote work program to apply to all employees in the U.S.

We also reconfigured our offices and adjusted our office and health screening protocols to create a safe place to conduct essential tasks.

We supplemented our wellness fund to cover broader health and wellness services, including in-home programs and child/family care, and expanded our home office program with ergonomic furniture, collaboration tools, virtual learning resources and telecommunications services to enable our teams.

Corporate Information

Our principal executive offices are located at 2777 Orchard Parkway, San Jose, California 95134, and our telephone number is (408) 514-3000.

Our website address is www.calix.com.

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Our principal executive offices are located at:

2777 Orchard Parkway, San Jose, California 95134, and our telephone number is:

(408) 514-3000.

Our website address is:

www.calix.com.

We do not incorporate the information on or accessible through our website into this Annual Report on Form 10-K, and you should not consider any information on, or that can be accessed through, our website as part of this Annual Report on Form 10-K.

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Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-K

Item 1. Business